Area Forecast Matrices
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
Versions:
1
2
893 FOCA52 TJSJ 170909 AFMSJU Area Forecast Matrices National Weather Service San Juan PR 509 AM AST Sun Aug 17 2025 PRZ001-172015- San Juan and Vicinity- Including the cities of Bayamon, Carolina, Catano, Guaynabo, San Juan, Toa Alta, Toa Baja, and Trujillo Alto 509 AM AST Sun Aug 17 2025 Date Sun 08/17/25 Mon 08/18/25 Tue 08/19/25 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 76 84 89 74 78 81 80 89 90 73 77 81 82 90 91 Temp 81 84 84 82 80 79 78 79 84 88 89 85 81 79 78 78 85 89 90 86 81 Dewpt 74 74 72 72 73 74 73 73 74 73 73 73 73 73 74 74 74 73 73 73 73 RH 79 72 67 72 79 85 85 82 72 61 59 67 77 82 88 88 70 59 58 65 77 Wind dir SW S S S S S S S S S S S S S SE SE SE SE SE SE SE Wind spd 10 14 16 12 13 12 12 9 10 13 16 11 6 5 5 6 6 11 12 9 6 Wind gust 26 Clouds OV OV OV OV B2 B1 B2 B1 B2 B2 B2 B2 SC SC FW FW SC SC B2 B2 SC PoP 12hr 80 60 60 30 60 QPF 12hr 0.70-0.84 0.37-0.72 0.41-0.74 0.07-1.00 0.54-1.19 Snow 12hr MM MM MM Rain shwrs NM NM D NM NM SC SC NM SC SC NM NM SC SC IS IS NM NM IS Tstms IS IS SC IS IS IS IS IS IS IS IS IS IS IS Heat index 86 90 90 87 83 81 80 92 96 96 92 85 80 93 97 98 93 86 Max heat 93 98 97 88 95 99 98 90 95 102 101 Flood A A A A A A A A A A A A High Surf Y Y Y Y Y Y Y Y Date Wed 08/20/25 Thu 08/21/25 Fri 08/22/25 Sat 08/23/25 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 77 90 77 89 77 88 76 87 Temp 78 85 90 81 78 85 89 81 78 84 88 80 77 83 87 80 Dewpt 73 74 78 77 75 76 77 76 76 77 78 77 76 77 77 76 PWind dir SE E E E NE NE E E Wind char LT GN LT GN GN GN GN BZ Avg clouds SC SC SC SC SC SC SC B1 B1 B1 B1 B1 B1 B1 B1 B2 PoP 12hr 20 30 10 50 40 50 50 60 Rain shwrs IS IS SC SC IS IS SC SC SC SC SC SC SC SC NM NM Tstms IS IS IS IS IS IS IS $$ PRZ002-172015- Northeast- Including the cities of Ceiba, Canovanas, Fajardo, Humacao, Loiza, Luquillo, Naguabo, and Rio Grande 509 AM AST Sun Aug 17 2025 Date Sun 08/17/25 Mon 08/18/25 Tue 08/19/25 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 75 84 89 68 77 81 75 87 90 67 77 82 75 88 91 Temp 81 84 84 82 79 78 77 78 83 86 87 84 80 78 77 78 83 87 88 84 80 Dewpt 73 73 73 73 74 74 73 74 74 74 74 74 74 74 74 74 75 74 74 74 73 RH 77 70 70 74 85 88 87 88 74 68 65 72 82 88 90 88 77 65 63 72 79 Wind dir SW S S S S S S S S S S S S S S SE SE SE SE SE SE Wind spd 14 16 16 14 14 13 14 12 13 14 14 11 8 8 6 9 8 12 11 9 6 Wind gust 29 29 29 26 26 25 26 24 24 25 Clouds OV OV OV OV B2 B1 B2 OV B2 B2 B2 B2 B1 B1 SC SC B1 B1 B2 B2 B1 PoP 12hr 90 60 60 50 50 QPF 12hr 0.75-0.87 0.48-0.81 0.49-0.84 0.34-1.00 0.21-1.08 Snow 12hr MM MM MM Rain shwrs D D D NM NM SC NM NM NM NM NM NM SC SC IS IS SC SC SC SC SC Tstms SC SC SC IS IS IS IS IS IS IS IS IS IS IS IS IS Heat index 86 90 90 88 82 80 90 94 95 90 84 80 91 95 96 92 85 Max heat 94 99 98 91 98 102 101 92 98 102 102 Flood A A A A A A A A A A A A High Surf Y Y Y Y Y Y Y Y Date Wed 08/20/25 Thu 08/21/25 Fri 08/22/25 Sat 08/23/25 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 77 88 77 87 76 87 76 86 Temp 78 84 88 80 77 83 87 80 77 83 87 79 76 82 86 79 Dewpt 73 75 77 75 75 75 75 74 75 76 76 75 75 76 76 75 PWind dir SE E E E NE NE E E Wind char LT GN GN GN GN GN GN BZ Avg clouds B1 B1 B1 SC SC SC B1 B1 B1 B1 SC B1 B2 B2 B2 B2 PoP 12hr 50 50 30 50 40 60 60 60 Rain shwrs SC SC SC SC IS IS SC SC SC SC SC IS NM NM NM NM Tstms IS IS IS IS IS IS IS IS IS $$ PRZ003-172015- Southeast- Including the cities of Arroyo, Guayama, Maunabo, Patillas, Salinas, and Yabucoa 509 AM AST Sun Aug 17 2025 Date Sun 08/17/25 Mon 08/18/25 Tue 08/19/25 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 75 83 88 70 77 82 75 85 90 69 77 82 76 87 91 Temp 80 82 83 81 79 78 77 78 82 84 85 83 79 78 77 78 83 86 87 84 80 Dewpt 73 73 72 73 74 74 73 74 74 74 74 74 73 74 74 74 74 74 74 73 72 RH 79 74 70 77 85 88 87 88 77 72 70 74 82 88 90 88 74 68 65 70 77 Wind dir SW SW SW SW S S S S S S S S S S SE SE SE SE SE SE E Wind spd 13 14 14 16 14 13 13 11 13 14 14 10 5 6 5 8 8 11 10 8 6 Wind gust 26 28 26 26 26 25 24 23 24 27 27 20 21 Clouds OV OV OV OV B2 B2 OV OV OV OV OV OV B1 B1 B1 B1 B1 B1 B1 B1 SC PoP 12hr 90 70 80 50 50 QPF 12hr 0.88 0.80-0.88 0.81-0.99 0.35-1.00 0.14-0.22 Snow 12hr MM MM MM Rain shwrs D D D D NM NM NM NM NM NM NM NM SC SC SC SC SC SC SC SC SC Tstms SC SC SC IS IS IS IS IS IS IS IS IS IS IS IS IS Heat index 84 88 88 85 81 80 88 92 92 89 83 80 90 94 95 90 84 Max heat 92 97 97 90 94 101 99 89 96 102 101 Flood A A A A A A A A A A A A Date Wed 08/20/25 Thu 08/21/25 Fri 08/22/25 Sat 08/23/25 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 77 87 76 88 76 88 76 85 Temp 77 83 87 80 77 84 88 80 77 83 88 80 77 82 85 79 Dewpt 73 74 75 74 73 74 73 73 74 75 75 74 74 74 75 74 PWind dir E E E E NE NE NE E Wind char LT GN LT GN GN GN GN BZ Avg clouds SC B1 B1 SC SC SC SC B1 B1 SC SC SC B2 B2 B2 B2 PoP 12hr 40 40 20 40 40 60 60 60 Rain shwrs SC SC SC IS IS IS SC SC SC SC IS NM NM NM NM NM Tstms IS IS IS IS IS IS IS $$ PRZ004-172015- Eastern Interior- Including the cities of Aguas Buenas, Caguas, Cayey, Cidra, Comerio, Gurabo, Juncos, Las Piedras, and San Lorenzo 509 AM AST Sun Aug 17 2025 Date Sun 08/17/25 Mon 08/18/25 Tue 08/19/25 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 75 80 86 69 75 79 75 84 90 69 74 78 76 86 91 Temp 78 80 80 78 76 76 75 76 80 83 84 81 77 76 74 75 81 85 86 82 78 Dewpt 72 72 70 71 72 73 72 72 73 72 71 72 72 72 72 73 73 72 72 72 71 RH 82 77 72 79 87 90 90 87 79 70 65 74 85 87 93 94 77 65 63 72 79 Wind dir SW SW S S S S S S S S S S S S S SE SE SE SE SE SE Wind spd 11 13 13 13 13 12 12 10 11 13 13 10 5 5 4 6 6 10 10 8 4 Clouds OV OV OV OV B2 B2 B2 B2 B2 B2 B2 B2 SC SC SC SC B1 B1 B1 B1 SC PoP 12hr 90 70 70 40 50 QPF 12hr 0.81-0.90 0.66-0.87 0.55-0.95 0.11-1.00 0.16-0.96 Snow 12hr MM MM MM Rain shwrs D D D D NM NM NM NM NM NM NM NM IS IS IS IS SC SC SC SC SC Tstms SC SC SC IS IS IS IS IS IS IS IS IS Heat index 83 82 80 84 89 89 84 86 91 92 87 Max heat 87 94 92 86 94 99 98 86 94 101 99 Flood A A A A A A A A A A A A Date Wed 08/20/25 Thu 08/21/25 Fri 08/22/25 Sat 08/23/25 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 74 86 73 87 73 86 73 83 Temp 75 81 86 77 74 81 87 78 74 81 86 77 74 79 83 77 Dewpt 72 73 75 74 72 74 74 73 73 74 75 74 73 75 75 74 PWind dir SE E E E NE NE E E Wind char LT GN LT GN LT GN GN BZ Avg clouds SC SC B1 SC SC SC SC B1 B1 B1 SC B1 B2 B2 B2 B2 PoP 12hr 30 30 20 50 40 60 60 60 Rain shwrs SC SC SC SC IS IS SC SC SC SC IS SC NM NM NM NM Tstms IS IS IS IS IS IS IS $$ PRZ005-172015- North Central- Including the cities of Arecibo, Barceloneta, Dorado, Florida, Manati, Vega Alta, and Vega Baja 509 AM AST Sun Aug 17 2025 Date Sun 08/17/25 Mon 08/18/25 Tue 08/19/25 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 78 84 89 74 77 81 82 88 90 73 75 81 82 90 91 Temp 81 84 84 82 79 78 77 78 84 87 88 84 80 78 76 77 84 89 90 85 80 Dewpt 74 73 72 72 72 73 72 72 73 73 73 73 73 73 72 73 73 72 72 72 73 RH 79 70 67 72 79 85 85 82 70 63 61 70 79 85 87 87 70 57 56 65 79 Wind dir SW SW SW S S S S S S S S S S SE SE S SE SE SE SE SE Wind spd 11 12 17 12 9 10 10 5 6 10 12 9 5 5 4 5 5 5 6 3 5 Wind gust 24 25 29 25 16 Clouds OV B2 OV B2 B2 B1 B1 SC B2 B2 B2 B2 SC SC FW FW SC SC B2 B2 SC PoP 12hr 70 60 60 30 60 QPF 12hr 0.56-0.75 0.27-0.60 0.38-0.47 0.05 0.77-1.19 Snow 12hr MM MM MM Rain shwrs NM NM NM NM NM SC SC SC SC SC NM NM IS IS IS IS NM NM IS Tstms IS IS IS IS IS IS IS IS IS IS IS IS IS Heat index 86 90 90 86 81 90 94 95 90 82 91 96 97 92 83 Max heat 92 98 96 86 94 99 98 86 95 101 99 Flood A A A A A A A A A A A A High Surf Y Y Y Y Y Y Y Y Date Wed 08/20/25 Thu 08/21/25 Fri 08/22/25 Sat 08/23/25 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 75 91 75 90 76 88 75 87 Temp 76 85 91 80 76 84 90 80 77 83 88 80 76 83 87 79 Dewpt 71 72 78 76 75 77 77 76 75 78 78 77 76 78 78 76 PWind dir SE E E E E NE E E Wind char LT GN LT GN GN GN BZ BZ Avg clouds SC FW SC SC FW FW SC B1 SC SC SC SC SC SC B1 B1 PoP 12hr 5 40 5 50 5 20 30 50 Rain shwrs IS IS SC SC SC SC IS IS IS IS IS IS SC SC Tstms IS IS IS IS $$ PRZ006-172015- Central Interior- Including the cities of Aibonito, Barranquitas, Ciales, Coamo, Corozal, Jayuya, Morovis, Naranjito, Orocovis, and Villalba 509 AM AST Sun Aug 17 2025 Date Sun 08/17/25 Mon 08/18/25 Tue 08/19/25 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 75 78 85 64 73 77 75 81 89 64 72 77 75 83 91 Temp 76 78 78 76 75 74 73 74 78 80 81 78 75 74 73 74 79 82 83 80 76 Dewpt 71 71 69 70 71 71 71 71 71 71 71 71 70 71 71 71 71 70 69 69 70 RH 85 79 74 82 87 90 93 90 79 74 72 79 84 90 93 90 77 67 63 69 82 Wind dir SW SW S S S S S S S S S S S S S SE SE SE SE SE SE Wind spd 10 12 12 11 11 11 10 8 9 11 11 9 4 4 3 5 5 8 8 5 4 Wind gust 23 24 24 23 20 21 25 26 19 19 Clouds OV OV OV OV OV B2 B2 B1 B2 B2 OV OV SC SC SC SC SC SC B1 B1 SC PoP 12hr 80 80 70 20 50 QPF 12hr 0.71-0.90 0.52-0.89 0.43-0.93 0.06-0.72 0.13-1.04 Snow 12hr MM MM MM Rain shwrs D NM D NM D NM NM NM NM NM NM NM IS IS IS IS IS IS SC SC IS Tstms SC IS SC IS IS IS IS IS IS IS IS IS IS IS Heat index 80 83 84 80 82 86 86 82 Max heat 88 93 92 92 97 96 84 95 101 99 Flood A A A A A A A A A A A A Date Wed 08/20/25 Thu 08/21/25 Fri 08/22/25 Sat 08/23/25 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 72 84 71 84 72 83 72 80 Temp 73 79 84 76 72 79 84 76 73 79 83 76 73 77 80 75 Dewpt 69 71 74 72 71 72 72 71 72 73 74 73 72 73 74 72 PWind dir SE SE E E NE NE NE E Wind char LT LT LT GN LT GN GN BZ Avg clouds SC SC SC SC FW FW SC B1 SC SC SC B1 B1 B1 B1 B1 PoP 12hr 10 40 5 50 20 40 40 60 Rain shwrs IS IS SC SC IS IS SC SC IS IS IS SC SC SC SC SC Tstms IS IS IS IS IS IS $$ PRZ007-172015- Ponce and Vicinity- Including the cities of Guayanilla, Juana Diaz, Yauco, Penuelas, Ponce, and Santa Isabel 509 AM AST Sun Aug 17 2025 Date Sun 08/17/25 Mon 08/18/25 Tue 08/19/25 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 75 82 89 66 76 81 75 84 90 66 77 81 75 86 91 Temp 79 82 82 80 78 77 76 77 81 83 84 81 79 78 77 78 82 85 86 83 79 Dewpt 73 73 72 72 73 73 73 72 73 74 74 73 73 73 73 73 73 73 72 72 73 RH 82 74 72 77 85 87 90 85 77 74 72 77 82 85 87 85 74 67 63 70 82 Wind dir SW SW SW S S S S S S S S S SE SE SE SE SE SE SE SE E Wind spd 10 10 12 10 10 11 10 10 10 12 12 9 5 4 4 6 8 10 10 6 5 Wind gust 21 26 24 24 24 21 21 23 26 27 19 23 23 Clouds OV OV OV OV OV B2 B2 B2 OV OV OV OV B1 B1 B1 B1 SC SC B1 B1 SC PoP 12hr 80 80 80 40 30 QPF 12hr 0.75-0.90 0.68-0.90 0.66-1.01 0.10-0.99 0.10-0.22 Snow 12hr MM MM MM Rain shwrs D D D NM D NM NM NM NM D D D SC SC SC SC IS IS SC SC IS Tstms SC SC SC IS IS IS IS IS IS IS IS IS IS IS IS IS Heat index 83 86 86 84 80 86 90 90 87 82 80 89 92 92 88 83 Max heat 95 99 98 89 95 102 102 90 98 102 99 Flood A A A A A A A A A A A A Date Wed 08/20/25 Thu 08/21/25 Fri 08/22/25 Sat 08/23/25 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 76 87 75 88 75 88 76 85 Temp 77 83 87 79 76 83 88 79 76 83 88 80 77 81 85 79 Dewpt 71 73 74 73 71 70 71 73 72 73 74 73 72 72 72 73 PWind dir E E E E NE E NE E Wind char LT GN LT GN LT GN GN BZ Avg clouds SC SC SC SC FW FW SC SC SC SC SC SC SC SC B1 B1 PoP 12hr 5 30 5 40 10 40 40 50 Rain shwrs IS IS IS SC SC SC IS IS IS SC IS SC SC SC Tstms IS IS IS $$ PRZ008-172015- Northwest- Including the cities of Aguadilla, Camuy, Hatillo, Isabela, and Quebradillas 509 AM AST Sun Aug 17 2025 Date Sun 08/17/25 Mon 08/18/25 Tue 08/19/25 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 79 83 89 72 76 81 82 87 90 71 75 81 82 89 91 Temp 80 83 83 81 78 77 76 77 83 86 87 83 79 77 75 76 83 88 89 84 79 Dewpt 74 73 73 73 73 74 73 73 73 73 73 73 73 73 73 73 73 71 71 73 73 RH 82 72 72 77 85 90 90 87 72 65 63 72 82 87 94 90 72 57 56 70 82 Wind dir SW SW SW SW S S S S S S S S S S S SE SE SE SE E E Wind spd 14 16 21 19 16 16 16 12 12 14 17 13 9 6 5 6 5 8 6 2 3 Wind gust 26 26 35 33 29 29 31 26 26 28 29 25 21 19 17 17 Clouds OV B2 B2 B1 B1 B1 B1 B1 B1 B1 B2 B2 SC SC FW FW SC SC B2 B2 FW PoP 12hr 70 50 60 10 60 QPF 12hr 0.48-0.68 0.26-0.50 0.31-0.47 0.03 1.07-1.19 Snow 12hr MM MM MM Rain shwrs NM NM NM SC SC SC SC SC SC SC NM NM IS IS IS IS NM NM Tstms IS IS IS IS IS IS IS IS IS IS IS IS IS Heat index 83 88 89 85 80 89 93 94 89 80 89 94 95 90 81 Max heat 94 99 99 89 95 101 99 89 95 101 99 Flood A A A A A A A A A A A A High Surf Y Y Y Y Y Y Y Y Date Wed 08/20/25 Thu 08/21/25 Fri 08/22/25 Sat 08/23/25 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 74 88 74 88 75 87 74 86 Temp 75 83 88 79 75 83 88 79 76 82 87 79 75 81 86 78 Dewpt 72 71 77 76 73 74 76 75 74 75 77 75 75 76 76 75 PWind dir SE E E E E NE E E Wind char LT LT LT GN GN BZ BZ WY Avg clouds FW FW SC B1 FW FW SC B1 FW FW SC SC FW SC B1 B1 PoP 12hr 5 50 5 50 5 30 20 60 Rain shwrs SC SC SC SC IS IS SC SC IS IS NM NM Tstms IS IS IS IS IS IS $$ PRZ009-172015- Western Interior- Including the cities of Adjuntas, Lares, Las Marias, Maricao, Sabana Grande, San Sebastian, and Utuado 509 AM AST Sun Aug 17 2025 Date Sun 08/17/25 Mon 08/18/25 Tue 08/19/25 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 75 78 86 67 74 77 75 81 90 67 73 77 75 84 91 Temp 76 78 78 77 75 75 74 75 78 81 81 79 76 75 73 74 80 83 84 80 76 Dewpt 72 71 71 70 71 72 71 71 72 71 71 71 71 71 71 71 71 70 69 69 70 RH 87 79 79 79 87 90 90 87 82 72 72 77 85 87 93 90 74 65 61 69 82 Wind dir SW SW SW S S S S S S S S S S S SE SE SE SE SE SE SE Wind spd 10 11 14 12 11 11 12 10 9 11 12 10 6 5 4 6 6 9 8 4 3 Wind gust 20 21 29 24 23 23 21 21 25 26 20 19 25 23 Clouds OV B2 OV B2 B2 B2 B2 B1 B2 B2 B2 B2 FW FW SC SC SC SC B2 B2 FW PoP 12hr 70 60 70 10 60 QPF 12hr 0.58-0.82 0.34-0.84 0.40-0.92 0.03-0.65 0.10-1.19 Snow 12hr MM MM MM Rain shwrs NM NM NM NM NM NM SC NM NM NM NM NM IS IS IS IS IS IS SC SC IS Tstms IS IS IS IS IS IS IS IS IS IS IS IS IS IS Heat index 81 85 85 81 83 87 87 83 Max heat 90 94 94 93 101 99 87 95 101 99 Flood A A A A A A A A A A A A Date Wed 08/20/25 Thu 08/21/25 Fri 08/22/25 Sat 08/23/25 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 72 85 71 85 72 84 73 82 Temp 73 80 85 76 72 80 85 76 73 79 84 76 73 78 82 75 Dewpt 68 70 74 72 71 71 72 72 71 73 74 73 72 73 73 72 PWind dir SE SE E E NE NE E E Wind char LT LT LT LT LT LT GN BZ Avg clouds FW FW SC SC FW FW SC B1 FW FW SC B1 SC SC B1 B1 PoP 12hr 5 50 5 50 5 50 30 60 Rain shwrs IS IS SC SC SC SC IS IS SC SC IS IS SC IS Tstms IS IS IS IS IS IS IS IS $$ PRZ010-172015- Mayaguez and Vicinity- Including the cities of Aguada, Anasco, Hormigueros, Mayaguez, Moca, Rincon, and San German 509 AM AST Sun Aug 17 2025 Date Sun 08/17/25 Mon 08/18/25 Tue 08/19/25 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 75 84 89 70 77 82 75 87 90 72 76 82 75 89 92 Temp 81 83 84 82 79 78 77 78 83 86 87 84 80 78 77 78 84 88 89 85 80 Dewpt 75 74 74 73 74 75 74 74 74 74 74 74 74 74 74 74 74 73 73 73 74 RH 82 74 72 74 85 91 90 88 74 68 65 72 82 88 90 88 72 61 59 67 82 Wind dir SW SW SW S S S S S S S S S S SE SE SE SE SE S SE SE Wind spd 13 14 21 18 17 17 18 16 16 17 18 16 12 10 9 11 10 14 13 10 6 Wind gust 26 29 35 33 31 31 32 28 29 29 29 26 24 21 21 24 24 25 24 19 Clouds B2 B2 B2 B2 B2 B2 B2 B1 B1 B2 OV OV SC SC SC SC SC SC B2 B2 FW PoP 12hr 70 60 70 30 50 QPF 12hr 0.45-0.77 0.30-0.72 0.12-0.81 0.03-0.27 0.11-1.19 Snow 12hr MM MM MM Rain shwrs NM NM NM NM NM SC SC SC SC SC NM NM SC SC SC SC IS IS SC SC IS Tstms IS IS IS IS IS IS IS IS IS IS IS IS IS IS IS IS IS IS Heat index 86 90 91 87 82 80 90 95 96 91 83 92 96 97 92 83 Max heat 95 100 100 95 98 103 103 93 99 105 103 Flood A A A A A A A A A A A A Date Wed 08/20/25 Thu 08/21/25 Fri 08/22/25 Sat 08/23/25 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 76 90 75 90 75 90 75 88 Temp 77 84 90 80 76 84 90 80 76 84 90 80 76 83 88 79 Dewpt 72 72 77 76 74 74 76 76 74 75 77 76 75 76 77 75 PWind dir SE E E E NE NE NE E Wind char LT LT LT LT GN GN BZ BZ Avg clouds FW FW SC SC FW FW SC B1 SC SC SC B1 SC SC B1 B1 PoP 12hr 5 50 5 50 5 50 20 60 Rain shwrs IS IS SC SC SC SC IS IS SC SC IS IS IS NM Tstms IS IS IS IS IS IS IS IS $$ PRZ011-172015- Southwest- Including the cities of Cabo Rojo, Guanica, and Lajas 509 AM AST Sun Aug 17 2025 Date Sun 08/17/25 Mon 08/18/25 Tue 08/19/25 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 82 86 89 74 77 81 82 88 90 74 77 81 82 90 91 Temp 83 85 86 84 80 79 78 78 84 88 88 85 81 79 78 78 85 89 90 86 81 Dewpt 75 75 75 74 75 75 75 75 75 75 75 75 75 75 75 75 75 75 74 74 75 RH 77 72 70 72 85 88 91 91 74 66 66 72 82 88 91 91 72 64 60 68 82 Wind dir SW SW SW S S S S S S S S S SE SE SE SE SE SE SE SE E Wind spd 12 12 20 14 14 16 16 16 14 17 17 13 11 9 9 12 12 16 14 12 9 Wind gust 37 31 28 32 33 31 29 31 31 26 24 19 19 25 25 31 28 25 19 Clouds OV B2 OV OV OV B2 B2 B2 B2 OV OV OV B1 B1 B1 B1 SC SC B1 B1 SC PoP 12hr 80 70 80 50 30 QPF 12hr 0.69-0.83 0.45-0.87 0.62-1.01 0.08-0.97 0.10-0.16 Snow 12hr MM MM MM Rain shwrs D NM D NM NM NM NM NM NM D D D SC SC SC SC IS IS SC SC IS Tstms SC IS SC IS IS IS IS IS IS IS IS IS IS IS IS IS Heat index 90 94 95 90 85 82 80 92 97 99 94 86 81 94 99100 94 87 Max heat 95 99 99 89 95 102 102 90 96 103 102 Flood A A A A A A A A A A A A Date Wed 08/20/25 Thu 08/21/25 Fri 08/22/25 Sat 08/23/25 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 77 91 75 92 75 92 76 89 Temp 77 86 91 80 76 85 92 80 75 85 92 81 77 84 89 80 Dewpt 73 75 76 76 73 72 74 76 73 73 76 76 73 73 74 75 PWind dir E SE E E NE E NE E Wind char GN GN LT GN LT GN LT BZ Avg clouds SC SC SC SC FW FW SC SC SC SC SC B1 SC SC B1 B1 PoP 12hr 5 30 5 40 10 50 30 50 Rain shwrs IS IS IS SC SC SC IS IS SC SC IS IS SC SC Tstms IS IS $$ PRZ012-172015- Culebra- Including the city of Culebra 509 AM AST Sun Aug 17 2025 Date Sun 08/17/25 Mon 08/18/25 Tue 08/19/25 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 82 87 89 79 82 87 90 79 82 88 92 Temp 84 86 87 85 82 81 80 80 84 87 87 85 82 81 80 80 85 87 88 85 82 Dewpt 76 76 76 77 77 77 76 77 76 76 76 76 76 76 76 75 75 75 75 73 75 RH 77 72 70 77 85 88 88 91 77 70 70 75 82 85 88 85 72 68 66 67 79 Wind dir SW S S S S S S S S S S S S S SE SE SE SE SE SE SE Wind spd 27 26 26 23 21 23 23 20 21 21 20 17 14 14 13 13 13 13 13 12 12 Wind gust 41 37 Clouds OV OV OV B2 B2 B2 B2 B2 B2 B2 B2 B2 SC SC SC SC B1 B1 B2 B2 B2 PoP 12hr 80 60 60 40 50 QPF 12hr 0.75 0.53 0.67 1.00 0.21 Snow 12hr MM MM MM Rain shwrs D D D NM SC SC NM SC NM NM NM NM SC SC SC SC SC SC SC SC SC Tstms SC SC SC IS IS IS IS IS IS IS IS IS Heat index 92 95 96 94 89 87 84 86 94 97 97 94 89 87 85 85 93 97 98 93 89 Max heat 96 100 100 90 97 102 102 91 98 105 102 Flood A A A A A A A A A A A A High Surf Y Y Y Y Y Y Y Y Date Wed 08/20/25 Thu 08/21/25 Fri 08/22/25 Sat 08/23/25 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 80 88 80 88 79 88 79 88 Temp 80 85 88 82 80 85 88 82 80 85 88 82 79 84 88 82 Dewpt 76 76 78 77 76 77 76 77 77 78 78 77 77 78 78 77 PWind dir E E E E NE NE E SE Wind char GN BZ BZ BZ BZ BZ WY WY Avg clouds B2 B2 B1 SC SC SC SC B1 B1 B1 SC SC B2 B2 B2 B2 PoP 12hr 50 50 30 40 40 60 60 60 Rain shwrs SC SC SC SC IS SC SC SC SC SC SC NM NM NM NM NM Tstms IS IS IS IS IS IS IS $$ PRZ013-172015- Vieques- Including the city of Vieques 509 AM AST Sun Aug 17 2025 Date Sun 08/17/25 Mon 08/18/25 Tue 08/19/25 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 82 87 89 79 82 88 90 79 82 88 92 Temp 83 86 87 85 82 80 80 80 85 87 88 85 82 81 80 80 85 88 88 85 82 Dewpt 75 75 75 76 76 76 75 76 76 76 75 76 76 76 75 75 75 75 75 73 75 RH 77 70 68 75 82 88 85 88 75 70 66 75 82 85 85 85 72 66 66 67 79 Wind dir SW SW S S S S S S S S S S S S SE SE SE SE SE SE E Wind spd 24 23 25 23 21 21 21 20 20 20 20 17 13 13 12 12 13 13 12 11 11 Wind gust 37 36 Clouds OV OV OV B2 B2 B2 B2 OV B2 B2 B2 B2 SC SC SC SC B1 B1 B2 B2 B2 PoP 12hr 80 60 60 50 50 QPF 12hr 0.74-0.80 0.54-0.65 0.68 1.00 0.22 Snow 12hr MM MM MM Rain shwrs D D D NM SC SC NM SC NM NM NM NM SC SC SC SC SC SC SC SC SC Tstms SC SC SC IS IS IS IS IS IS IS IS IS Heat index 91 96 97 94 88 86 82 83 94 97 98 94 89 86 83 83 93 97 98 93 88 Max heat 94 100 100 90 97 102 100 89 96 103 102 Flood A A A A A A A A A A A A High Surf Y Y Y Y Y Y Y Y Date Wed 08/20/25 Thu 08/21/25 Fri 08/22/25 Sat 08/23/25 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 79 89 79 88 78 88 77 88 Temp 80 85 89 82 79 85 88 82 79 84 88 81 78 84 88 81 Dewpt 75 76 76 75 75 76 75 75 76 76 76 76 76 76 76 76 PWind dir E E E E NE NE E SE Wind char GN BZ BZ BZ BZ BZ WY WY Avg clouds B2 B2 B1 SC SC SC B1 B1 B1 B1 SC SC B2 B2 B2 B2 PoP 12hr 50 50 30 40 40 60 60 60 Rain shwrs SC SC SC SC IS SC SC SC SC SC SC NM NM NM NM NM Tstms IS IS IS IS IS IS IS $$ VIZ001-172015- St.Thomas...St. John...and Adjacent Islands- Including the cities of Anna`s Retreat, Charlotte Amalie, Charlotte Amalie East, Charlotte Amalie West, and Cruz Bay 509 AM AST Sun Aug 17 2025 Date Sun 08/17/25 Mon 08/18/25 Tue 08/19/25 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 82 86 89 72 79 82 82 86 90 72 79 82 82 86 92 Temp 83 85 86 84 81 81 80 80 84 86 86 84 81 80 79 80 84 86 86 84 81 Dewpt 75 75 76 76 75 75 75 76 75 75 75 75 75 75 75 74 74 75 73 74 74 RH 77 72 72 77 82 82 85 88 74 70 70 74 82 85 88 82 72 70 65 72 79 Wind dir S S S S S S S S S S S S S SE SE SE SE SE SE SE E Wind spd 28 26 24 23 20 23 20 20 21 20 18 16 13 16 12 12 12 14 16 12 11 Wind gust 42 40 34 Clouds OV OV B2 B2 B2 B2 B2 B2 B2 B2 B1 B1 SC SC SC SC B1 B1 B1 B1 B2 PoP 12hr 80 60 50 30 50 QPF 12hr 0.73 0.54 0.40-0.55 0.99 0.17 Snow 12hr MM MM MM Rain shwrs D D NM NM SC NM NM SC SC SC SC SC SC SC SC SC SC SC SC SC SC Tstms SC SC IS IS IS IS IS IS IS IS IS IS Heat index 90 94 95 92 88 85 83 85 92 95 95 92 87 85 83 83 91 94 94 91 87 Max heat 96 102 102 94 99 103 103 94 99 105 102 Flood A A A A A A A A A A A A High Surf Y Y Y Y Y Y Y Y Date Wed 08/20/25 Thu 08/21/25 Fri 08/22/25 Sat 08/23/25 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 79 86 79 86 79 86 78 86 Temp 80 84 86 81 80 84 86 81 79 84 86 81 79 83 86 81 Dewpt 76 75 76 75 76 76 75 75 77 77 76 76 77 76 76 76 PWind dir E E E E NE NE E SE Wind char GN BZ BZ BZ BZ BZ WY WY Avg clouds B2 B1 SC SC SC SC SC SC B1 B1 SC SC B2 B2 B2 B2 PoP 12hr 50 30 30 40 40 50 60 60 Rain shwrs SC SC SC IS IS SC SC SC SC SC SC SC SC NM NM NM Tstms IS IS IS IS IS $$ VIZ002-172015- St Croix- Including the cities of Christiansted, Frederiksted, Frederiksted Southeast, and Grove Place 509 AM AST Sun Aug 17 2025 Date Sun 08/17/25 Mon 08/18/25 Tue 08/19/25 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 82 87 89 79 82 88 90 79 82 88 92 Temp 83 86 87 85 82 81 80 80 85 87 88 85 82 81 80 80 84 87 88 85 82 Dewpt 75 75 75 75 75 75 74 75 75 75 75 75 75 75 75 74 75 74 72 74 74 RH 77 70 68 72 79 82 82 85 72 68 66 72 79 82 85 82 74 65 59 70 77 Wind dir S S S S S S S S S S S S SE SE SE SE SE SE SE E E Wind spd 23 21 23 20 18 17 18 17 19 19 18 14 10 11 10 9 10 12 12 11 10 Wind gust 34 34 Clouds OV OV B2 B2 B2 B2 B2 B2 B2 B2 B1 B1 SC SC SC SC SC SC SC SC B2 PoP 12hr 70 60 50 30 50 QPF 12hr 0.69 0.56 0.37-0.51 0.99 0.13 Snow 12hr MM MM MM Rain shwrs NM NM NM NM NM NM NM SC SC SC SC SC SC SC SC SC SC SC SC SC SC Tstms IS IS IS IS IS IS IS IS IS IS IS IS Heat index 91 95 96 93 88 86 83 85 93 97 98 94 88 85 83 83 92 96 94 93 88 Max heat 94 100 99 92 98 102 102 90 96 102 101 Flood A A A A A A A A A A A A High Surf Y Y Y Y Y Y Y Y Date Wed 08/20/25 Thu 08/21/25 Fri 08/22/25 Sat 08/23/25 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 79 88 79 88 79 88 78 87 Temp 80 85 88 82 80 84 88 82 79 84 88 81 79 84 87 82 Dewpt 75 75 77 76 75 76 76 76 76 77 77 76 76 77 77 77 PWind dir E E E E NE NE E SE Wind char GN BZ BZ BZ BZ BZ WY WY Avg clouds B2 B1 SC SC SC SC SC SC B1 B1 SC B1 B2 B2 B2 B2 PoP 12hr 50 30 30 40 40 60 60 60 Rain shwrs SC SC SC IS IS IS IS SC SC SC IS IS NM NM NM NM Tstms IS IS IS IS IS $$