Point Forecast Matrices
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
901 FOCA52 TJSJ 180903 PFMSJU Point Forecast Matrices National Weather Service San Juan PR 503 AM AST Fri Oct 18 2024 PRZ001-182000- Luis Munoz Marin International Airport-San Juan 18.43N 66.00W Elev. 9 ft 503 AM AST Fri Oct 18 2024 Date Fri 10/18/24 Sat 10/19/24 Sun 10/20/24 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 90 80 91 79 90 Temp 86 89 90 85 83 82 81 80 86 90 91 85 83 81 80 79 85 89 90 85 83 Dewpt 78 78 78 78 77 77 77 77 77 77 78 78 78 78 78 77 78 78 78 77 77 RH 77 70 68 80 82 85 88 91 75 66 66 80 85 91 94 94 80 70 68 77 82 Wind dir E E E E E SE SE E E E E E E E E E E E E E E Wind spd 5 11 11 11 8 6 6 8 8 10 12 11 8 8 6 5 9 11 12 10 6 Clouds OV OV B2 OV B2 B1 B1 B1 B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 PoP 12hr 70 50 70 70 70 QPF 12hr 0.81 0.19 0.48 0.55 0.97 Rain shwrs L L L L C C C C C L L L C C L L L L C C L Tstms S S S S S S S S S S S S S S S S S S S S S Heat index 98103104 97 92 90 88 87 97103106 97 92 89 86 97103104 96 92 Max heat 98 106 103 92 97 106 104 91 97 105 103 Date Mon 10/21/24 Tue 10/22/24 Wed 10/23/24 Thu 10/24/24 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 91 79 92 79 90 79 89 Temp 81 86 91 83 80 86 92 83 80 85 90 82 80 85 89 83 Dewpt 77 77 77 77 77 78 78 77 77 78 77 77 77 77 78 77 PWind dir SE SE SE SE SE SE SE E Wind char LT GN LT GN LT LT LT LT Avg clouds B2 B1 B1 B2 B2 B1 B1 B1 B2 B1 SC B1 SC SC SC B2 PoP 12hr 60 60 50 50 50 50 30 60 Rain shwrs L L L L C C C C C C C C C C L L Tstms S S S S S S S S S S S S S $$ PRZ002-182000- Roosevelt Roads Naval Airstation-Ceiba PR 18.25N 65.63W Elev. 39 ft 503 AM AST Fri Oct 18 2024 Date Fri 10/18/24 Sat 10/19/24 Sun 10/20/24 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 89 82 91 80 91 Temp 85 88 89 86 84 83 82 82 87 90 91 86 83 82 81 80 86 90 91 85 83 Dewpt 79 79 79 78 78 78 77 78 79 79 78 78 79 78 78 78 79 79 78 78 78 RH 82 75 73 77 82 85 85 88 77 70 66 77 88 88 91 94 80 70 66 80 85 Wind dir E E E E E E E E E E E E E E E E E E E E E Wind spd 6 10 9 8 9 10 10 9 9 10 9 8 9 9 9 10 10 11 11 10 8 Clouds OV OV OV OV B2 B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 OV OV B2 B2 B2 PoP 12hr 80 50 70 70 70 QPF 12hr 0.98 0.21 0.66 0.58 0.97 Rain shwrs D D D D C C C C C L L L L L L L L L C C L Tstms S S S S S S S S S S S S S S S S S S S S S Heat index 99104104 98 95 93 91 91101107106 98 95 91 89 87100106106 97 92 Max heat 99 104 102 94 101 107 104 93 100 107 104 Date Mon 10/21/24 Tue 10/22/24 Wed 10/23/24 Thu 10/24/24 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 79 89 79 90 77 90 77 90 Temp 80 85 89 82 80 85 90 81 78 84 90 81 78 84 90 82 Dewpt 78 79 78 78 78 79 78 78 77 79 78 78 78 79 78 78 PWind dir E SE E SE E SE SE E Wind char GN GN GN GN GN LT LT LT Avg clouds B2 B2 B2 OV OV B2 B2 B2 B2 B1 SC SC B1 SC SC SC PoP 12hr 60 70 70 60 50 40 40 50 Rain shwrs L L L L L L L L C C S C C C S C Tstms S S S S S S S S S S S $$ PRZ007-182000- Mercedita Airport-Ponce PR 18.02N 66.56W Elev. 26 ft 503 AM AST Fri Oct 18 2024 Date Fri 10/18/24 Sat 10/19/24 Sun 10/20/24 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 91 79 93 78 90 Temp 85 90 91 85 83 81 80 79 87 92 93 86 83 81 79 78 85 89 90 85 83 Dewpt 78 79 79 79 79 77 77 76 79 80 80 79 79 78 76 76 78 80 80 80 79 RH 80 70 68 82 88 88 91 91 77 68 66 80 88 91 91 94 80 75 73 85 88 Wind dir NE E SE SE E NE NE NE NE E SE SE E NE NE NE NE E SE SE E Wind spd 3 11 12 9 6 5 5 4 4 12 10 9 4 3 4 4 4 12 10 9 6 Clouds FW FW B2 B2 B1 SC B1 SC SC SC B1 B1 B1 B1 B1 B1 SC SC B2 B2 SC PoP 12hr 70 30 40 40 50 QPF 12hr 1.06 0.09 0.36 0.10 0.47 Rain shwrs L L C S C S S S C C C C C C S S C C S Tstms S S S S S S S S S S Heat index 97106107 98 93 88 85 101111112 99 93 88 83 96106107 99 94 Max heat 97 109 108 91 101 112 110 92 96 108 106 Date Mon 10/21/24 Tue 10/22/24 Wed 10/23/24 Thu 10/24/24 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 92 79 92 79 91 77 91 Temp 81 87 92 83 80 86 92 83 80 86 91 81 78 85 91 83 Dewpt 76 79 80 78 76 79 80 78 76 79 80 79 77 79 80 79 PWind dir E E E E E E NE E Wind char LT GN LT GN LT LT LT LT Avg clouds SC SC SC B1 B2 B2 B1 B1 SC SC SC SC SC SC SC SC PoP 12hr 30 50 50 50 20 30 30 20 Rain shwrs S C C C C C C C S S C C C C S S Tstms S S S S $$ PRZ008-182000- Rafael Hernandez Airport-Aguadilla PR 18.50N 67.13W Elev. 237 ft 503 AM AST Fri Oct 18 2024 Date Fri 10/18/24 Sat 10/19/24 Sun 10/20/24 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 86 77 88 77 87 Temp 82 85 86 82 80 79 78 77 83 87 88 83 80 79 78 77 83 86 87 83 81 Dewpt 75 76 77 75 75 76 76 76 75 76 77 76 76 77 77 76 75 76 77 76 75 RH 79 75 75 79 85 91 94 97 77 70 70 80 88 94 97 97 77 72 72 80 82 Wind dir E E E E E E E E E E E E E E E E E E NE E E Wind spd 9 12 16 9 6 5 3 4 5 6 8 9 11 11 5 8 10 8 2 8 10 Clouds SC SC B2 B2 B2 B1 SC SC SC B1 B2 B2 SC SC SC SC SC SC OV OV B1 PoP 12hr 60 60 60 20 70 QPF 12hr 1.03 0.30 0.64 0.04 1.10 Rain shwrs S S C L L C S S S C L L S S S S S S L L C Tstms S S S S S S S S S Heat index 88 95 97 88 84 91 98100 90 86 90 96 98 90 86 Max heat 88 97 96 84 91 100 99 85 90 99 97 Date Mon 10/21/24 Tue 10/22/24 Wed 10/23/24 Thu 10/24/24 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 78 88 76 88 76 87 75 86 Temp 79 84 88 80 77 83 88 80 77 82 87 79 76 81 86 79 Dewpt 76 75 77 75 76 75 76 76 76 75 77 75 76 75 76 76 PWind dir E E E E E E E E Wind char LT LT LT LT LT LT LT LT Avg clouds B1 SC SC B2 SC SC B1 B2 SC SC FW SC SC SC SC B1 PoP 12hr 40 60 30 60 30 40 10 50 Rain shwrs C C L L C C L L C C C C S S C C Tstms S S S S S S S S $$ PRZ010-182000- Eugenio Maria de Hosto Airport-Mayaguez PR 18.27N 67.15W Elev. 28 ft 503 AM AST Fri Oct 18 2024 Date Fri 10/18/24 Sat 10/19/24 Sun 10/20/24 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 91 76 91 75 90 Temp 84 90 91 84 81 79 77 76 84 90 91 83 80 78 76 75 83 89 90 84 81 Dewpt 77 80 80 78 77 77 75 75 77 80 80 78 77 78 76 75 78 80 80 78 77 RH 80 73 70 82 88 94 94 97 80 73 70 85 91100100100 85 75 73 82 88 Wind dir NE E SE NE NE E E NE NE E SW E E E E E E SE W NE E Wind spd 3 1 3 1 2 4 6 4 3 1 3 3 4 5 2 4 3 3 4 12 13 Clouds FW FW OV OV B2 B1 SC FW FW SC B2 OV SC SC SC SC FW FW OV OV SC PoP 12hr 80 50 70 20 70 QPF 12hr 1.72 0.15 0.82 0.04 1.06 Rain shwrs L D C C S S L L S S S S L L C Tstms S S S S S S S S Heat index 93107109 94 87 95107109 93 85 94106107 94 88 Max heat 93 111 107 86 95 109 106 94 108 105 Date Mon 10/21/24 Tue 10/22/24 Wed 10/23/24 Thu 10/24/24 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 91 75 90 74 91 Temp 78 85 91 80 76 84 91 80 76 83 90 79 75 84 91 80 Dewpt 76 77 80 77 75 78 80 77 75 77 80 77 75 77 80 77 PWind dir E SE E SE E E E SE Wind char LT LT LT LT LT LT LT LT Avg clouds SC SC SC B2 SC SC B1 B2 SC SC SC B1 SC SC SC B1 PoP 12hr 30 60 30 60 30 40 20 40 Rain shwrs C C L L C C L L C C C C S S C C Tstms S S S S $$ VIZ001-182000- CYRIL E. King Airport-St Thomas USVI 18.33N 64.97W Elev. 23 ft 503 AM AST Fri Oct 18 2024 Date Fri 10/18/24 Sat 10/19/24 Sun 10/20/24 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 89 81 90 80 90 Temp 85 88 89 85 83 82 82 81 86 89 90 85 83 82 81 80 86 89 90 85 83 Dewpt 79 78 79 79 79 79 79 78 79 79 79 79 79 79 79 78 79 78 78 79 79 RH 82 72 73 82 88 91 91 91 80 73 70 82 88 91 94 94 80 70 68 82 88 Wind dir E E E E E E E E E E E E E E E E E E E E E Wind spd 13 12 12 12 14 16 16 16 14 13 11 13 13 16 17 16 16 16 14 16 14 Clouds OV OV B2 OV B2 B1 B1 SC SC B2 B2 B2 B2 B2 B2 B2 B2 B2 B1 B1 B2 PoP 12hr 80 50 60 50 60 QPF 12hr 0.87 0.15 0.45 0.47 0.52 Rain shwrs D D L L C C C S C L L L C C C C C C C C L Tstms S S S S S S S S S S S S S S S S Heat index 98102104 98 95 93 91 89100105106 98 94 92 90 87 99103104 98 94 Max heat 98 104 102 93 100 106 105 93 99 104 104 Date Mon 10/21/24 Tue 10/22/24 Wed 10/23/24 Thu 10/24/24 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 80 89 81 89 80 89 80 88 Temp 81 85 89 83 82 85 89 83 81 85 89 83 81 84 88 82 Dewpt 79 79 78 79 78 79 78 78 78 79 79 79 78 79 78 79 PWind dir E SE E SE E E E E Wind char BZ BZ GN BZ GN GN LT LT Avg clouds B2 B2 B2 OV OV B2 B2 B2 B2 B1 SC SC B2 B1 B1 SC PoP 12hr 60 70 70 60 50 50 50 40 Rain shwrs L L L L L L L C C C S C C C C C Tstms S S S S S S S S S S S S S $$ VIZ002-182000- Henry E. Rohlsen Airport-St Croix USVI 17.70N 64.80W Elev. 74 ft 503 AM AST Fri Oct 18 2024 Date Fri 10/18/24 Sat 10/19/24 Sun 10/20/24 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 90 79 91 79 91 Temp 85 89 90 85 82 81 80 79 86 90 91 85 83 81 80 79 86 90 91 85 83 Dewpt 78 79 79 78 78 78 78 78 79 80 79 78 78 78 78 78 79 79 79 78 78 RH 80 73 70 80 88 91 94 97 80 73 68 80 85 91 94 97 80 70 68 80 85 Wind dir E E E E E E E E E E E E E E E E E E E E E Wind spd 9 10 9 9 11 12 13 12 13 12 10 12 11 12 13 12 14 14 14 13 13 Clouds B2 B2 B1 B2 B2 B1 SC SC SC B2 B2 B2 B2 B2 B2 B2 OV OV B1 B1 B2 PoP 12hr 60 50 60 70 70 QPF 12hr 0.52 0.12 0.46 0.53 0.64 Rain shwrs L L C C C C S S C L L L C C C C L L C C L Tstms S S S S S S S S S S S S S S S S Heat index 96105106 96 92 89 86 99108107 97 92 89 86 99106107 97 92 Max heat 96 106 105 91 99 109 105 91 99 108 105 Date Mon 10/21/24 Tue 10/22/24 Wed 10/23/24 Thu 10/24/24 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 91 79 91 78 91 78 90 Temp 80 86 91 83 80 86 91 82 79 85 91 82 79 85 90 82 Dewpt 78 79 79 78 78 79 79 78 78 79 80 78 78 79 79 78 PWind dir E E E E E E E E Wind char GN GN GN BZ GN GN LT LT Avg clouds B2 B2 B2 B1 B2 B2 B1 SC SC SC SC B2 B2 B2 B1 B1 PoP 12hr 60 60 60 50 10 60 50 60 Rain shwrs L L L L L L C C S S L L C C C L Tstms S S S S S S S S S S S S S $$