Area Forecast Matrices
Issued by NWS San Juan, PR

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904
FOCA52 TJSJ 212102
AFMSJU

Area Forecast Matrices
National Weather Service San Juan PR
502 PM AST Thu Aug 21 2025

PRZ001-220800-
San Juan and Vicinity-
Including the cities of Bayamon, Carolina, Catano, Guaynabo,
San Juan, Toa Alta, Toa Baja, and Trujillo Alto
502 PM AST Thu Aug 21 2025

Date           08/21/25      Fri 08/22/25            Sat 08/23/25            Sun
AST 3hrly     17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
UTC 3hrly     21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12

Min/Max                72 78 82    79 86 89    73 77 82    79 86 89    74 78 82
Temp             81 79 78 78 83 85 86 83 80 79 78 78 82 85 86 83 80 80 78 79 85
Dewpt            75 75 75 74 76 77 77 78 77 76 76 75 76 77 77 77 76 76 76 76 77
RH               82 88 91 88 80 77 75 85 91 91 94 91 82 77 75 82 88 88 94 91 77
Wind dir          E  E  E  E  E NE NE NE NE  E  E SE SE SE SE SE SE SE SE SE  E
Wind spd          6  6  6  4  8 10 11  9  5  5  4  4  5  8  8  6  5  5  4  4  6
Clouds           CL CL CL CL B1 B1 B1 B1 B1 B1 B1 SC CL CL B1 B1 SC SC SC SC SC
PoP 12hr                     40          50          50          50          10
QPF 12hr                   0.05   0.23-0.69   0.31-0.62   0.43-0.95   0.01-0.11
Snow 12hr                    MM          MM          MM
Rain shwrs                   SC SC SC SC SC SC SC SC SC SC SC SC IS IS IS IS IS
Tstms                        IS IS IS IS IS IS             IS IS
Obvis             H  H  H  H
Heat index       86 82 80 80 91 96 97 93 85 81       90 96 97 93 85 83 80 81 96
Max heat        100    91    96   106   104    92    97   106   106    92   104


Date           08/24  Mon 08/25/25  Tue 08/26/25  Wed 08/27/25  Thu 08/28/25
AST 6hrly     14 20   02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Max/Min          90      78    88      78    86      77    87      76    87
Temp          90 82   79 84 88 82   79 83 86 80   78 83 87 80   77 83 87 80
Dewpt         77 77   76 76 77 76   75 76 77 76   76 77 77 76   76 77 77 73
PWind dir         E       E     E       E     E       E     E      SE     E
Wind char        GN      LT    GN      LT    GN      LT    GN      LT    GN
Avg clouds    SC SC   SC SC SC SC   SC SC B1 SC   B1 B1 B1 SC   SC SC SC B1
PoP 12hr         20      20    20      50    50      50    50      20    50
Rain shwrs    IS IS   IS IS IS IS   IS SC SC IS   SC SC SC SC   IS IS IS SC
Tstms                                  IS IS         IS IS               IS

$$
PRZ002-220800-
Northeast-
Including the cities of Ceiba, Canovanas, Fajardo, Humacao,
Loiza, Luquillo, Naguabo, and Rio Grande
502 PM AST Thu Aug 21 2025

Date           08/21/25      Fri 08/22/25            Sat 08/23/25            Sun
AST 3hrly     17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
UTC 3hrly     21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12

Min/Max                66 76 82    72 86 91    66 75 82    71 85 89    67 77 82
Temp             80 78 77 77 82 85 86 83 79 77 76 76 81 84 85 82 79 78 77 77 83
Dewpt            74 75 74 74 75 76 76 76 75 75 75 75 75 76 76 76 75 76 76 76 76
RH               82 91 90 90 79 75 72 80 88 94 97 97 82 77 75 82 88 94 97 97 80
Wind dir         NE NE NE NE NE NE NE NE NE NE NE  E SE SE SE SE SE SE SE SE  E
Wind spd          8  9  8  8  8 10 10  8  6  6  5  5  5  8  9  8  5  6  6  6 10
Wind gust        18 19
Clouds           FW CL CL FW B2 B2 B2 B2 B2 B2 B1 B1 CL CL SC SC SC SC SC SC SC
PoP 12hr                     50          60          50          50          10
QPF 12hr                   0.06   0.57-0.81   0.36-0.84   0.14-0.93   0.01-0.10
Snow 12hr                    MM          MM          MM
Rain shwrs                IS NM SC NM NM SC SC SC SC SC SC SC SC IS IS IS IS IS
Tstms                        IS IS IS IS IS IS IS IS IS IS
Obvis             H  H  H  H
Heat index       84 80       89 95 96 91 83          87 93 94 90 83 80       92
Max heat        101    91   100   108   106    92    96   105   105    92   101


Date           08/24  Mon 08/25/25  Tue 08/26/25  Wed 08/27/25  Thu 08/28/25
AST 6hrly     14 20   02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Max/Min          87      77    87      76    86      76    86      76    87
Temp          87 81   78 83 87 80   77 82 86 79   76 82 86 79   77 83 87 80
Dewpt         76 76   75 75 75 75   75 75 76 75   75 76 76 75   75 76 75 73
PWind dir         E       E     E       E     E       E     E       E    SE
Wind char        GN      GN    GN      GN    GN      LT    GN      LT    GN
Avg clouds    SC SC   SC SC SC SC   SC B1 B1 B1   B1 B1 B1 B1   B1 B1 B1 B1
PoP 12hr         20      40    40      50    50      50    50      50    50
Rain shwrs    IS IS   IS SC SC SC   SC SC SC SC   SC SC SC SC   SC SC SC SC
Tstms                                  IS IS         IS IS IS   IS IS    IS

$$
PRZ003-220800-
Southeast-
Including the cities of Arroyo, Guayama, Maunabo, Patillas,
Salinas, and Yabucoa
502 PM AST Thu Aug 21 2025

Date           08/21/25      Fri 08/22/25            Sat 08/23/25            Sun
AST 3hrly     17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
UTC 3hrly     21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12

Min/Max                69 76 82    78 87 91    68 75 82    75 84 89    70 77 82
Temp             80 78 76 77 83 86 87 83 79 77 76 76 81 84 84 82 79 78 77 78 83
Dewpt            73 74 74 73 74 75 76 77 75 75 75 74 75 77 77 77 75 76 76 76 77
RH               79 88 94 87 74 70 70 82 88 94 97 94 82 80 80 85 88 94 97 94 82
Wind dir         NE NE NE NE NE  E  E NE NE NE NE NE  E SE SE SE  E  E  E  E  E
Wind spd          8  8  6  6  6 10 11  9  6  5  4  4  5  9  8  6  5  5  5  5  9
Wind gust                          23
Clouds           FW FW CL FW B1 B1 B1 B1 B2 B2 B2 B2 CL CL SC SC SC SC SC SC SC
PoP 12hr                     40          60          60          60          10
QPF 12hr                   0.05   0.45-0.81   0.75-0.85   0.42-0.52        0.01
Snow 12hr                    MM          MM          MM
Rain shwrs                IS SC SC SC SC NM NM NM NM NM NM IS IS IS IS IS IS IS
Tstms                        IS IS IS IS IS IS IS IS IS IS
Obvis             H  H  H  H
Heat index       83          89 95 98 93 83          87 93 94 90 83 81    80 92
Max heat        100    90    97   109   108    92    96   105   105    92   101


Date           08/24  Mon 08/25/25  Tue 08/26/25  Wed 08/27/25  Thu 08/28/25
AST 6hrly     14 20   02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Max/Min          87      77    87      76    86      76    86      76    86
Temp          87 80   78 83 87 80   77 83 86 79   77 82 86 79   77 82 86 79
Dewpt         76 75   75 75 75 74   75 75 76 75   75 76 76 75   75 76 76 73
PWind dir         E       E     E      NE     E      NE     E       E     E
Wind char        GN      GN    GN      GN    GN      LT    GN      LT    GN
Avg clouds    SC SC   SC SC SC FW   SC B1 B1 SC   B1 B1 B1 B1   B1 B1 B1 B1
PoP 12hr         20      40    40      50    50      50    50      40    50
Rain shwrs    IS IS   IS IS SC SC   SC SC SC SC   SC SC SC SC   SC SC SC SC
Tstms                                  IS IS         IS IS               IS

$$
PRZ004-220800-
Eastern Interior-
Including the cities of Aguas Buenas, Caguas, Cayey, Cidra,
Comerio, Gurabo, Juncos, Las Piedras, and San Lorenzo
502 PM AST Thu Aug 21 2025

Date           08/21/25      Fri 08/22/25            Sat 08/23/25            Sun
AST 3hrly     17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
UTC 3hrly     21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12

Min/Max                68 73 77    75 85 91    68 73 78    74 83 89    69 74 79
Temp             77 76 74 74 80 84 85 81 77 75 74 74 79 82 83 80 77 76 75 75 82
Dewpt            72 73 72 72 74 74 75 75 74 74 73 73 74 75 75 75 74 74 74 74 75
RH               85 90 93 93 82 72 72 82 90 97 97 97 85 79 77 85 90 94 97 97 79
Wind dir         NE NE NE NE NE NE NE NE NE  N NE  E  E SE SE SE SE SE SE SE  E
Wind spd          4  3  3  2  4  8  9  8  3  2  2  2  4  8  9  8  4  4  4  3  6
Clouds           CL CL CL CL B1 B1 B1 B1 B2 B2 B1 B2 CL CL SC SC SC SC SC SC SC
PoP 12hr                     40          60          60          50          10
QPF 12hr                   0.05   0.35-0.81   0.58-0.83   0.36-0.93        0.01
Snow 12hr                    MM          MM          MM
Rain shwrs                   SC SC SC SC NM NM SC SC SC SC IS IS IS IS IS IS IS
Tstms                        IS IS IS IS IS IS IS IS IS IS
Obvis             H  H  H  H
Heat index                   84 90 93 86             82 89 90 85             88
Max heat         98    87    96   106   105    90    94   105   103    87   102


Date           08/24  Mon 08/25/25  Tue 08/26/25  Wed 08/27/25  Thu 08/28/25
AST 6hrly     14 20   02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Max/Min          86      74    85      74    84      73    84      73    84
Temp          86 78   75 81 85 78   75 80 84 77   74 80 84 77   74 80 84 77
Dewpt         75 74   73 74 74 73   73 74 74 73   73 75 75 74   73 75 74 71
PWind dir         E       E     E      NE     E       E     E       E    SE
Wind char        GN      LT    GN      LT    LT      LT    GN      LT    LT
Avg clouds    SC SC   SC SC SC FW   SC SC B1 SC   B1 B1 B1 SC   SC SC SC B1
PoP 12hr         20      40    40      50    50      50    50      30    50
Rain shwrs    IS IS   IS IS SC IS   IS SC SC SC   SC SC SC SC   IS IS IS SC
Tstms                                  IS IS         IS IS               IS

$$
PRZ005-220800-
North Central-
Including the cities of Arecibo, Barceloneta, Dorado, Florida,
Manati, Vega Alta, and Vega Baja
502 PM AST Thu Aug 21 2025

Date           08/21/25      Fri 08/22/25            Sat 08/23/25            Sun
AST 3hrly     17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
UTC 3hrly     21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12

Min/Max                73 76 82    83 87 91    74 76 82    82 86 89    74 76 82
Temp             81 79 77 77 83 86 87 84 80 78 77 77 82 85 86 83 79 78 77 78 85
Dewpt            75 75 75 74 77 78 78 77 77 77 76 75 77 79 78 77 76 76 75 75 77
RH               82 88 94 90 82 77 75 80 91 97 97 94 85 82 77 82 91 94 94 91 77
Wind dir          E  E  E  E  E NE NE NE NE  E SE  E  E  E  E  E SE SE SE SE  E
Wind spd         10  8  8  6  9 11 12 10  6  8  5  5  5  6  6  2  2  5  4  4  5
Wind gust        20
Clouds           CL FW CL FW SC SC SC SC B1 B1 SC SC CL CL OV OV B1 B1 B1 B1 B1
PoP 12hr                     10          30          30          70          50
QPF 12hr                   0.02   0.10-0.34   0.07-0.32   0.93-1.10   0.02-0.33
Snow 12hr                    MM          MM          MM
Rain shwrs          IS    IS IS IS IS IS SC SC IS IS IS IS NM NM SC SC SC SC SC
Tstms                                                      IS IS IS IS IS IS
Obvis             H  H  H  H
Heat index       86 80       92 98100 94 84          91 98 99 92 82          96
Max heat        103    91    98   111   109    92    97   110   106    91   105


Date           08/24  Mon 08/25/25  Tue 08/26/25  Wed 08/27/25  Thu 08/28/25
AST 6hrly     14 20   02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Max/Min          91      76    89      77    87      76    88      75    88
Temp          91 81   77 84 89 81   78 84 87 80   77 83 88 79   76 83 88 79
Dewpt         78 76   75 77 77 75   75 77 77 76   75 77 78 76   75 77 78 73
PWind dir         E       E     E       E     E       E     E      SE     E
Wind char        GN      LT    GN      GN    GN      LT    GN      LT    GN
Avg clouds    B1 B1   CL CL FW SC   FW FW SC SC   SC SC SC SC   FW FW B1 B1
PoP 12hr         70       0    10      10    30       5    50      20    60
Rain shwrs    SC NM         IS IS   IS IS IS IS   IS IS IS NM   IS IS IS NM
Tstms         IS IS                                     IS IS         IS IS

$$
PRZ006-220800-
Central Interior-
Including the cities of Aibonito, Barranquitas, Ciales, Coamo,
Corozal, Jayuya, Morovis, Naranjito, Orocovis, and Villalba
502 PM AST Thu Aug 21 2025

Date           08/21/25      Fri 08/22/25            Sat 08/23/25            Sun
AST 3hrly     17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
UTC 3hrly     21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12

Min/Max                62 72 76    72 82 90    63 72 77    72 81 87    64 73 78
Temp             76 74 73 73 78 81 82 79 75 74 73 73 78 80 81 79 76 75 73 74 80
Dewpt            72 72 71 71 72 73 74 74 73 73 72 72 73 74 74 74 73 73 72 72 74
RH               87 93 93 93 82 77 77 85 94 97 97 97 85 82 79 85 90 94 97 93 82
Wind dir         NE NE NE NE NE NE NE NE NE NE NE  E  E SE SE SE SE SE SE SE  E
Wind spd          5  4  3  3  5  8  8  6  3  3  2  2  3  5  6  4  3  3  3  3  4
Wind gust                          20
Clouds           CL FW CL CL SC SC SC SC B1 B1 B1 B1 CL CL B1 B1 SC SC SC SC SC
PoP 12hr                     20          50          50          40          20
QPF 12hr                   0.03   0.16-0.56   0.27-0.75   0.36-1.10   0.01-0.27
Snow 12hr                    MM          MM          MM
Rain shwrs          IS       IS IS IS IS SC SC SC SC SC SC SC SC IS IS IS IS IS
Tstms                              IS IS IS IS             IS IS
Obvis             H  H  H  H
Heat index                   80 85 87 82             80 85 86 82             84
Max heat         98    87    93   103   102    86    93   101   101    86    99


Date           08/24  Mon 08/25/25  Tue 08/26/25  Wed 08/27/25  Thu 08/28/25
AST 6hrly     14 20   02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Max/Min          84      73    83      73    82      72    82      72    81
Temp          84 76   73 79 83 77   74 79 82 75   73 78 82 75   72 78 81 75
Dewpt         73 72   72 73 72 71   71 73 73 72   72 73 74 73   72 73 73 70
PWind dir         E       E     E      NE     E       E     E       E    SE
Wind char        GN      LT    GN      LT    LT      LT    LT      LT    LT
Avg clouds    SC SC   FW FW FW SC   FW FW SC SC   SC SC SC SC   SC SC SC B1
PoP 12hr         50       0    10      10    30      30    30      20    40
Rain shwrs    IS SC   IS IS IS IS   IS IS IS IS   IS IS SC IS   IS IS IS SC
Tstms         IS IS                                        IS            IS

$$
PRZ007-220800-
Ponce and Vicinity-
Including the cities of Guayanilla, Juana Diaz, Yauco, Penuelas,
Ponce, and Santa Isabel
502 PM AST Thu Aug 21 2025

Date           08/21/25      Fri 08/22/25            Sat 08/23/25            Sun
AST 3hrly     17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
UTC 3hrly     21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12

Min/Max                64 75 82    72 87 94    65 76 82    72 84 89    66 77 82
Temp             79 77 76 76 82 86 87 84 80 78 77 77 81 83 84 82 80 79 78 79 84
Dewpt            73 72 71 70 72 73 75 75 74 74 73 72 74 75 75 75 74 74 74 73 75
RH               82 85 85 82 72 65 68 74 82 88 87 85 79 77 74 79 82 85 88 82 74
Wind dir         NE NE NE NE NE  E SE  E  N NE NE NE  E SE SE SE  E  E  E  E  E
Wind spd          6  5  4  4  4  8  8  2  3  3  3  3  4  9  8  6  4  5  5  5  6
Wind gust                          20                   20 20
Clouds           CL SC CL CL SC SC SC SC B2 B2 B1 B1 CL CL B1 B1 SC SC SC SC SC
PoP 12hr                     20          50          50          40          10
QPF 12hr                   0.03   0.17-0.55   0.29-0.75   0.14-0.93        0.01
Snow 12hr                    MM          MM          MM
Rain shwrs          IS       IS IS SC IS SC SC SC SC SC SC SC SC IS IS IS IS IS
Tstms                              IS    IS IS       IS IS IS IS
Obvis             H  H  H  H
Heat index       83          87 93 96 92 84 80       86 91 92 89 84 82    81 91
Max heat        102    91    95   108   106    93    94   104   104    93   100


Date           08/24  Mon 08/25/25  Tue 08/26/25  Wed 08/27/25  Thu 08/28/25
AST 6hrly     14 20   02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Max/Min          87      76    88      77    87      76    86      76    85
Temp          87 80   77 84 88 81   78 83 87 80   77 82 86 79   76 82 85 79
Dewpt         75 74   72 73 73 73   71 72 74 74   72 74 75 74   73 74 74 72
PWind dir         E       E     E      NE     E      NE     E       E     E
Wind char        GN      LT    GN      LT    GN      LT    GN      LT    GN
Avg clouds    SC SC   FW FW FW SC   FW FW SC SC   SC SC SC SC   SC SC SC SC
PoP 12hr         20       0    40       5    40      20    20      20    20
Rain shwrs    IS IS         SC SC      IS IS SC   IS IS IS IS   IS IS IS IS

$$
PRZ008-220800-
Northwest-
Including the cities of Aguadilla, Camuy, Hatillo, Isabela,
and Quebradillas
502 PM AST Thu Aug 21 2025

Date           08/21/25      Fri 08/22/25            Sat 08/23/25            Sun
AST 3hrly     17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
UTC 3hrly     21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12

Min/Max                71 75 82    83 87 95    72 75 82    82 85 89    72 75 82
Temp             80 78 76 76 83 87 87 84 79 77 76 76 81 84 85 82 79 77 76 76 83
Dewpt            74 74 73 73 74 76 76 75 75 75 75 74 75 76 76 75 75 75 74 73 75
RH               82 88 90 90 74 70 70 74 88 94 97 94 82 77 75 79 88 94 94 90 77
Wind dir          E  E  E  E  E NE NE NE NE  E  E  E  E NE NE  E  E SE SE SE  E
Wind spd         13 11 10 10 11 12 13 13 10 10  8  6  6  5  3  2  2  3  3  4  4
Wind gust        24
Clouds           CL FW CL FW FW FW SC SC SC SC FW FW CL CL OV OV B2 B2 B2 B2 B1
PoP 12hr                     10          20          20          70          60
QPF 12hr                   0.01   0.05-0.12   0.03-0.10        1.10   0.27-0.33
Snow 12hr                    MM          MM          MM
Rain shwrs          IS       IS IS IS IS IS IS IS IS IS IS NM NM NM NM NM NM SC
Tstms                                                      IS IS IS IS IS IS
Obvis             H  H  H  H
Heat index       83          90 96 98 91 82          87 94 95 89 80          90
Max heat        103    91   100   112   110    92    96   105   103    91    99


Date           08/24  Mon 08/25/25  Tue 08/26/25  Wed 08/27/25  Thu 08/28/25
AST 6hrly     14 20   02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Max/Min          88      75    89      76    87      75    87      74    87
Temp          88 79   76 83 89 80   77 83 87 79   76 83 87 78   75 82 87 78
Dewpt         77 75   74 75 75 74   74 75 76 75   74 75 77 75   74 75 76 73
PWind dir         E       E     E       E     E       E     E       E     E
Wind char        GN      GN    GN      GN    GN      GN    GN      LT    LT
Avg clouds    B2 B1   FW FW FW SC   CL FW SC SC   FW FW SC B1   CL FW B1 B1
PoP 12hr         70       0    30       5    30       5    70      20    60
Rain shwrs    NM NM   IS IS SC SC         IS SC         NM NM      IS NM NM
Tstms         IS IS                                     IS IS         IS IS

$$
PRZ009-220800-
Western Interior-
Including the cities of Adjuntas, Lares, Las Marias, Maricao,
Sabana Grande, San Sebastian, and Utuado
502 PM AST Thu Aug 21 2025

Date           08/21/25      Fri 08/22/25            Sat 08/23/25            Sun
AST 3hrly     17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
UTC 3hrly     21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12

Min/Max                64 72 75    73 84 94    65 73 77    72 82 89    67 74 78
Temp             77 75 73 73 79 83 84 81 76 75 74 74 79 82 82 80 77 76 74 75 81
Dewpt            72 72 71 70 72 73 73 73 73 73 72 71 73 74 74 73 72 73 72 71 73
RH               85 90 93 90 79 72 70 77 90 94 93 90 82 77 77 79 85 90 93 87 77
Wind dir         NE  E NE  E  E  E NE NE NE  E  E  E  E  E SE SE  E SE SE SE  E
Wind spd          5  5  5  4  6  6  4  5  4  4  3  3  3  4  3  2  2  3  3  4  4
Wind gust        16                                     20 20
Clouds           CL SC CL CL FW FW SC SC B1 B1 SC SC CL CL B2 B2 B1 B1 B1 B1 B1
PoP 12hr                     20          40          40          70          40
QPF 12hr                   0.02   0.06-0.32   0.05-0.42   0.64-1.10   0.01-0.30
Snow 12hr                    MM          MM          MM
Rain shwrs          IS       IS IS IS IS SC SC IS IS IS IS NM NM SC SC SC SC SC
Tstms                              IS                      IS IS IS IS IS IS
Obvis             H  H  H  H
Heat index                   82 89 91 85             81 87 88 83             85
Max heat        102    86    96   107   106    88    93   103   102    87    99


Date           08/24  Mon 08/25/25  Tue 08/26/25  Wed 08/27/25  Thu 08/28/25
AST 6hrly     14 20   02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Max/Min          85      72    86      73    84      72    83      72    83
Temp          85 76   73 81 86 77   74 80 84 76   73 79 83 76   73 79 83 76
Dewpt         73 72   71 72 71 71   71 72 73 72   72 73 74 73   72 73 73 70
PWind dir         E       E     E       E     E       E     E       E     E
Wind char        LT      LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    B1 B1   CL CL FW SC   CL FW SC SC   FW FW SC B1   FW FW SC SC
PoP 12hr         60       0    40       5    50       5    50      20    50
Rain shwrs    SC NM         SC SC         SC SC         NM NM      IS IS SC
Tstms         IS IS         IS IS         IS IS         IS IS         IS IS

$$
PRZ010-220800-
Mayaguez and Vicinity-
Including the cities of Aguada, Anasco, Hormigueros, Mayaguez,
Moca, Rincon, and San German
502 PM AST Thu Aug 21 2025

Date           08/21/25      Fri 08/22/25            Sat 08/23/25            Sun
AST 3hrly     17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
UTC 3hrly     21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12

Min/Max                69 75 82    78 90 95    70 75 82    76 86 89    73 77 82
Temp             80 78 76 77 84 89 90 86 80 78 76 76 82 86 86 83 80 79 78 78 85
Dewpt            75 74 73 72 74 76 76 76 76 76 75 74 75 77 77 76 76 75 75 74 76
RH               85 88 90 85 72 66 64 72 88 94 97 94 79 75 75 80 88 88 91 88 75
Wind dir          E  E  E  E  E  E SE NE NE NE  E  E  E  E SE SE  E  E SE  E  E
Wind spd         10 10 10  9 10  9  6 10  9  9  8  6  5  4  4  4  4  5  6  6  6
Wind gust        25 24 24 25 21 20 23 26 26 25 21 18       14       19 19 18 20
Clouds           FW SC CL CL FW FW SC FW SC B1 FW FW CL CL B2 B2 B1 B1 B1 B1 B1
PoP 12hr                     20          30          30          70          40
QPF 12hr                   0.03   0.01-0.30   0.02-0.34   0.78-1.10   0.02-0.33
Snow 12hr                    MM          MM          MM
Rain shwrs          IS             IS IS SC SC IS IS IS IS NM NM SC SC SC SC SC
Tstms                                    IS IS             IS IS IS IS IS IS
Obvis             H  H  H  H
Heat index       84          92101102 96 85          89 97 98 92 84 80       94
Max heat        103    90   100   113   112    92    96   108   103    93   102


Date           08/24  Mon 08/25/25  Tue 08/26/25  Wed 08/27/25  Thu 08/28/25
AST 6hrly     14 20   02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Max/Min          89      75    90      76    90      75    89      76    89
Temp          89 80   76 85 90 81   77 85 90 80   76 84 89 80   76 84 89 80
Dewpt         77 76   74 75 76 75   74 75 76 76   74 75 77 76   74 75 77 73
PWind dir         E       E     E       E     E       E     E       E     E
Wind char        LT      LT    LT      GN    LT      LT    LT      LT    LT
Avg clouds    B1 B1   FW FW FW SC   CL CL SC SC   FW FW SC SC   FW FW SC SC
PoP 12hr         60       5    40       0    40       5    50      20    50
Rain shwrs    SC NM   IS IS SC SC         SC SC         IS NM   IS IS IS SC
Tstms         IS IS            IS            IS         IS IS         IS IS

$$
PRZ011-220800-
Southwest-
Including the cities of Cabo Rojo, Guanica, and Lajas
502 PM AST Thu Aug 21 2025

Date           08/21/25      Fri 08/22/25            Sat 08/23/25            Sun
AST 3hrly     17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
UTC 3hrly     21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12

Min/Max                70 74 82    83 92 95    72 75 82    83 88 89    74 78 82
Temp             80 78 75 76 85 91 92 87 81 78 76 76 83 87 88 85 81 80 79 79 86
Dewpt            76 75 72 71 74 76 77 77 77 76 74 74 76 78 78 77 77 76 75 74 77
RH               88 91 90 85 70 62 62 72 88 94 94 94 80 75 72 77 88 88 88 85 75
Wind dir          E  E  E NE  E SE  S  E  N NE NE NE  E SE SE SE  E  E  E  E  E
Wind spd          5  5  5  4  3  6  9  2  3  4  4  4  5 11 12 11  9  8  9 10 10
Wind gust                          20                   24 24 23 20    20 21 20
Clouds           FW SC CL CL FW FW SC SC B2 B2 SC SC CL CL B1 B1 SC SC SC SC SC
PoP 12hr                     20          60          60          50          10
QPF 12hr                   0.03   0.19-0.42   0.22-0.45   0.14-0.94   0.01-0.20
Snow 12hr                    MM          MM          MM
Rain shwrs          IS          IS SC IS NM SC IS IS IS IS SC SC IS IS IS IS IS
Tstms                              IS IS IS IS             IS IS
Obvis             H  H  H  H
Heat index       85          92103106 98 86          91100101 96 87 84 80 81 97
Max heat        102    91    96   112   110    91    94   106   105    93   100


Date           08/24  Mon 08/25/25  Tue 08/26/25  Wed 08/27/25  Thu 08/28/25
AST 6hrly     14 20   02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Max/Min          91      75    92      75    92      75    91      76    90
Temp          91 81   76 86 92 81   76 86 92 81   76 85 91 81   77 85 90 81
Dewpt         78 77   73 74 77 76   73 74 77 76   73 75 78 77   74 76 77 74
PWind dir         E       E     E      NE     E       E     E       E    SE
Wind char        GN      GN    GN      LT    GN      LT    GN      GN    GN
Avg clouds    SC SC   CL CL FW SC   CL CL SC SC   SC SC SC SC   SC SC SC SC
PoP 12hr         20       0    50       5    40      10    10      20    20
Rain shwrs    IS IS         SC SC         SC SC   IS IS IS IS   IS IS IS IS
Tstms                       IS IS            IS

$$
PRZ012-220800-
Culebra-
Including the city of Culebra
502 PM AST Thu Aug 21 2025

Date           08/21/25      Fri 08/22/25            Sat 08/23/25            Sun
AST 3hrly     17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
UTC 3hrly     21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12

Min/Max                76 79 82    83 87 91    76 79 82    83 87 89          80
Temp             82 81 80 80 84 87 87 85 82 80 79 80 84 86 87 85 82 81 81 81 85
Dewpt            75 76 76 76 77 77 77 78 77 77 77 76 77 77 78 78 78 78 78 78 78
RH               79 85 88 88 80 72 72 80 85 91 94 88 80 75 75 80 88 91 91 91 80
Wind dir         NE NE NE NE NE NE NE NE NE  E  E  E SE SE SE SE SE SE SE  E  E
Wind spd         16 16 16 13 14 13 12 12 13 12 11 10  9  9 11 10  9 11 13 13 13
Clouds           FW CL CL FW B2 B2 B2 B2 B2 B2 B1 B1 CL CL SC SC SC SC SC SC SC
PoP 12hr                     50          60          60          60          30
QPF 12hr                   0.07        0.79        0.71   0.54-0.61        0.10
Snow 12hr                    MM          MM          MM
Rain shwrs       IS       IS NM SC NM NM SC SC SC SC NM NM IS IS SC SC SC SC IS
Tstms                        IS IS IS IS IS IS IS    IS IS
Obvis             H  H  H  H
Heat index       89 87 84 84 94 98 99 96 89 86 82 82 93 98 99 96 91 90 88 88 97
Max heat        100    91    98   106   105    93    97   105   105    94   103


Date           08/24  Mon 08/25/25  Tue 08/26/25  Wed 08/27/25  Thu 08/28/25
AST 6hrly     14 20   02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Max/Min          88      80    88      80    88      79    88      80    88
Temp          88 83   81 85 88 82   80 85 88 82   80 85 88 82   80 85 88 82
Dewpt         78 78   77 77 77 77   77 77 77 77   77 77 77 77   77 77 77 75
PWind dir         E       E     E       E     E       E     E       E    SE
Wind char        BZ      BZ    BZ      BZ    GN      BZ    GN      GN    GN
Avg clouds    SC SC   SC SC SC SC   SC B1 B1 B1   B1 B1 B1 B1   B2 B1 B1 B1
PoP 12hr         30      40    40      50    50      50    50      50    50
Rain shwrs    SC SC   IS SC SC SC   SC SC SC SC   SC SC SC SC   SC SC SC SC
Tstms                                  IS IS         IS IS IS   IS IS IS IS

$$
PRZ013-220800-
Vieques-
Including the city of Vieques
502 PM AST Thu Aug 21 2025

Date           08/21/25      Fri 08/22/25            Sat 08/23/25            Sun
AST 3hrly     17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
UTC 3hrly     21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12

Min/Max                76 79 82    83 87 90    74 78 82    82 87 89    76 79 82
Temp             82 80 79 80 84 87 87 84 81 79 78 78 83 86 87 84 81 81 80 80 85
Dewpt            74 74 74 74 75 76 75 76 76 76 76 75 76 76 75 76 76 77 77 77 77
RH               77 82 85 82 74 70 68 77 85 91 94 91 80 72 68 77 85 88 91 91 77
Wind dir         NE NE NE NE NE NE NE NE NE  E NE  E SE SE SE SE SE SE SE  E  E
Wind spd         14 16 16 14 14 13 13 11 12 12 10  9  8  8 10  9  8 11 12 11 13
Clouds           FW CL CL FW B2 B2 B2 B2 B2 B2 B2 B2 CL CL SC SC SC SC SC SC SC
PoP 12hr                     50          60          60          60          30
QPF 12hr                   0.08   0.72-0.82        0.81   0.52-0.61        0.10
Snow 12hr                    MM          MM          MM
Rain shwrs       IS       IS NM NM SC SC NM NM SC SC NM NM IS IS SC SC SC SC IS
Tstms                        IS IS IS IS IS IS IS IS IS IS
Obvis             H  H  H  H
Heat index       88 85 82 82 92 97 97 94 87 82 80 80 91 96 96 94 88 87 83 85 95
Max heat         98    90    96   102   100    91    94   102   100    91   100


Date           08/24  Mon 08/25/25  Tue 08/26/25  Wed 08/27/25  Thu 08/28/25
AST 6hrly     14 20   02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Max/Min          89      79    88      79    88      78    88      79    88
Temp          89 82   80 85 88 82   79 84 88 81   79 84 88 82   79 84 88 82
Dewpt         76 76   76 76 75 75   76 76 76 76   76 76 75 76   76 76 75 74
PWind dir         E       E     E       E     E       E     E       E    SE
Wind char        BZ      BZ    BZ      BZ    GN      GN    GN      GN    GN
Avg clouds    SC SC   SC SC SC FW   SC B1 B1 B1   B1 B1 B1 B1   B2 B1 B1 B2
PoP 12hr         30      40    40      50    50      50    50      50    50
Rain shwrs    SC SC   IS SC SC SC   SC SC SC SC   SC SC SC SC   SC SC SC SC
Tstms                                  IS IS         IS IS IS   IS IS IS IS

$$
VIZ001-220800-
St.Thomas...St. John...and Adjacent Islands-
Including the cities of Anna`s Retreat, Charlotte Amalie,
Charlotte Amalie East, Charlotte Amalie West, and Cruz Bay
502 PM AST Thu Aug 21 2025

Date           08/21/25      Fri 08/22/25            Sat 08/23/25            Sun
AST 3hrly     17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
UTC 3hrly     21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12

Min/Max                71 79 82    82 85 94    71 78 82    81 85 89    72 79 82
Temp             81 80 79 79 83 85 85 83 81 80 79 79 83 85 85 83 81 80 80 80 84
Dewpt            74 75 76 75 76 76 76 77 76 77 76 75 76 76 76 77 77 77 78 77 77
RH               79 85 91 88 80 75 75 82 85 91 91 88 80 75 75 82 88 91 94 91 80
Wind dir         NE NE NE NE NE NE NE NE  E  E  E SE SE SE SE SE SE SE  E  E  E
Wind spd         16 16 16 16 16 14 14 12 12 12 10  9 10 10 11 10 10 11 14 14 14
Clouds           FW FW FW SC B2 B2 B2 B2 B2 B2 B2 B2 CL CL SC SC SC SC SC SC SC
PoP 12hr                     50          60          60          60          30
QPF 12hr                   0.09        0.79   0.72-0.83        0.61        0.10
Snow 12hr                    MM          MM          MM
Rain shwrs       IS IS IS IS NM SC NM NM SC SC SC SC NM NM SC SC SC SC SC SC IS
Tstms                        IS IS IS IS IS IS IS IS IS IS
Obvis             H  H  H  H
Heat index       86 84 82 83 91 95 95 92 86 84 81 81 90 94 94 93 88 87 84 86 94
Max heat        100    93   100   110   106    94    98   105   103    95   102


Date           08/24  Mon 08/25/25  Tue 08/26/25  Wed 08/27/25  Thu 08/28/25
AST 6hrly     14 20   02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Max/Min          86      79    86      79    86      79    86      79    86
Temp          86 82   80 84 86 81   79 83 86 81   79 83 86 81   79 83 86 81
Dewpt         76 76   77 76 76 76   77 76 76 76   77 76 76 76   77 76 75 74
PWind dir         E       E     E       E     E       E     E       E    SE
Wind char        BZ      BZ    BZ      BZ    BZ      BZ    BZ      GN    GN
Avg clouds    SC SC   SC SC SC SC   SC SC SC SC   SC SC B1 B1   B2 B1 B1 B1
PoP 12hr         30      30    30      30    30      40    50      50    50
Rain shwrs    SC SC   IS IS IS IS   IS IS IS IS   IS SC SC SC   SC SC SC SC
Tstms                                                      IS   IS IS IS IS

$$
VIZ002-220800-
St Croix-
Including the cities of Christiansted, Frederiksted,
Frederiksted Southeast, and Grove Place
502 PM AST Thu Aug 21 2025

Date           08/21/25      Fri 08/22/25            Sat 08/23/25            Sun
AST 3hrly     17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
UTC 3hrly     21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12

Min/Max                76 79 82    83 87 94    76 78 82    82 86 89          79
Temp             81 80 79 80 84 86 87 84 81 80 79 79 83 85 86 84 82 81 80 80 85
Dewpt            75 75 75 75 76 77 76 77 76 76 76 76 77 77 77 78 77 77 77 77 77
RH               82 85 88 85 77 75 70 80 85 88 91 91 82 77 75 82 85 88 91 91 77
Wind dir         NE NE NE NE NE NE  E  E  E  E SE SE SE SE SE SE  E  E  E  E  E
Wind spd         13 13 13 14 14 12 12 10  9  8  6  6  9 11 11 10  9 10 11 12 16
Clouds           FW CL FW SC B2 B2 SC SC B2 B2 B2 B2 CL CL SC SC SC SC SC SC SC
PoP 12hr                     50          60          60          60          30
QPF 12hr                   0.12        0.31        0.74        0.61        0.10
Snow 12hr                    MM          MM          MM
Rain shwrs       IS    IS SC NM NM IS IS SC SC SC SC NM NM SC SC SC SC SC SC IS
Tstms                     IS IS IS       IS IS IS IS IS IS
Obvis             H  H  H
Heat index       87 85 82 83 93 97 98 94 87 85 80 81 92 96 97 94 89 87 83 86 95
Max heat        100    91   100   109   107    92    97   105   105    93   103


Date           08/24  Mon 08/25/25  Tue 08/26/25  Wed 08/27/25  Thu 08/28/25
AST 6hrly     14 20   02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Max/Min          88      79    88      79    87      79    87      79    88
Temp          88 82   80 85 88 82   80 84 87 82   80 84 87 82   80 84 88 82
Dewpt         77 77   76 76 76 76   76 76 77 76   76 77 76 76   76 76 76 74
PWind dir         E       E     E       E     E       E     E       E    SE
Wind char        BZ      BZ    BZ      BZ    GN      GN    GN      GN    GN
Avg clouds    SC SC   SC SC SC SC   SC SC SC SC   SC SC B1 B1   B1 B1 SC B1
PoP 12hr         30      20    20      20    20      50    50      50    50
Rain shwrs    SC SC   IS IS IS IS   IS IS IS IS   IS SC SC SC   SC SC SC SC
Tstms                                                IS IS IS   IS IS IS IS

$$