Point Forecast Matrices
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
Versions:
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458 FOCA52 TJSJ 170903 PFMSJU Point Forecast Matrices National Weather Service San Juan PR 503 AM AST Sat May 17 2025 PRZ001-172000- Luis Munoz Marin International Airport-San Juan 18.43N 66.00W Elev. 9 ft 503 AM AST Sat May 17 2025 Date Sat 05/17/25 Sun 05/18/25 Mon 05/19/25 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 86 74 87 76 89 Temp 81 85 86 83 78 76 74 76 82 86 87 84 80 78 76 78 84 88 89 85 80 Dewpt 73 73 74 74 73 73 72 73 73 74 75 74 74 74 74 73 74 75 75 74 74 RH 77 67 68 74 85 90 93 90 74 68 68 72 82 88 94 85 72 66 64 70 82 Wind dir SE E E E E E SE SE E E E E E E E E E E E E E Wind spd 4 10 11 9 8 9 5 3 4 8 10 9 9 6 5 5 5 10 11 9 8 Clouds OV SC B2 B2 SC SC B2 SC B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B1 PoP 12hr 70 50 60 60 60 QPF 12hr 0.67 0.26 0.51 0.38 0.37 Rain shwrs L S C L C S C C C L L L L L L L C C L L C Tstms S S S S S S S S S S Heat index 86 91 94 89 87 93 96 91 84 91 97 99 93 85 Max heat 86 94 93 87 96 96 91 99 99 Date Tue 05/20/25 Wed 05/21/25 Thu 05/22/25 Fri 05/23/25 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 77 89 77 90 77 90 Temp 76 84 90 81 77 84 89 81 77 85 90 81 77 85 90 81 Dewpt 74 74 75 75 74 75 75 75 74 74 74 75 74 74 74 74 PWind dir E E E E E E E E Wind char LT GN LT GN GN GN GN GN Avg clouds B1 B2 B1 B1 B1 B1 B1 B1 B1 SC SC B1 SC B1 B1 SC PoP 12hr 60 50 40 50 40 50 50 50 Rain shwrs L L C C C C C C C C C C C C C C Tstms S S $$ PRZ002-172000- Roosevelt Roads Naval Airstation-Ceiba PR 18.25N 65.63W Elev. 39 ft 503 AM AST Sat May 17 2025 Date Sat 05/17/25 Sun 05/18/25 Mon 05/19/25 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 84 74 85 76 86 Temp 80 83 84 81 77 76 74 75 80 84 85 82 79 77 76 77 82 85 86 83 80 Dewpt 74 74 74 74 73 73 73 73 74 74 74 74 74 74 74 74 75 75 75 74 74 RH 82 74 72 79 87 90 97 94 82 72 70 77 85 90 94 90 79 72 70 74 82 Wind dir E E E E E E E E E E E E E E E E E E E E E Wind spd 8 10 9 6 4 3 6 5 5 8 6 8 8 6 6 8 8 9 9 5 6 Clouds B2 B2 OV B2 B1 B1 B2 B2 OV OV B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 PoP 12hr 70 70 70 60 60 QPF 12hr 0.75 0.49 0.53 0.39 0.30 Rain shwrs L L L L C C C L L L C C L L L L C C C C L Tstms S S S S S S S S S S S S Heat index 85 90 91 87 85 91 93 89 83 88 93 95 90 85 Max heat 85 91 91 85 93 92 88 95 94 Date Tue 05/20/25 Wed 05/21/25 Thu 05/22/25 Fri 05/23/25 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 77 87 78 87 78 87 78 87 Temp 77 83 87 81 78 83 87 81 78 83 87 81 78 83 87 81 Dewpt 74 75 75 74 75 75 75 75 75 75 74 75 74 75 75 74 PWind dir E E E E E E E E Wind char LT LT LT GN GN GN GN GN Avg clouds B2 B2 B1 B1 B2 B2 B2 B1 B1 B1 B1 B2 B2 B2 B2 B2 PoP 12hr 60 50 50 50 40 50 50 60 Rain shwrs L L C C C C C C C C C C C C L L Tstms S S $$ PRZ007-172000- Mercedita Airport-Ponce PR 18.02N 66.56W Elev. 26 ft 503 AM AST Sat May 17 2025 Date Sat 05/17/25 Sun 05/18/25 Mon 05/19/25 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 88 74 88 74 89 Temp 82 86 88 84 79 76 74 76 82 86 88 84 79 76 74 76 83 87 89 85 80 Dewpt 72 74 74 74 73 72 71 70 73 75 75 74 74 72 71 71 74 75 75 75 74 RH 72 68 63 72 82 87 90 82 74 70 66 72 85 87 90 85 74 68 64 72 82 Wind dir E E E E E NE NE NE E SE SE E E E E E E E SE E E Wind spd 3 11 12 8 6 5 4 4 3 10 12 9 8 5 4 4 5 10 8 6 4 Clouds B2 SC B2 OV B1 SC SC SC B1 B1 B1 B1 SC SC SC SC SC SC B1 B1 SC PoP 12hr 70 40 40 30 40 QPF 12hr 0.74 0.16 0.19 0.04 0.12 Rain shwrs L C L L C C S C C C C C S S S S C C C C S Tstms S S S Heat index 87 95 97 91 88 96 98 91 89 97 99 94 84 Max heat 87 97 96 88 98 97 89 99 98 Date Tue 05/20/25 Wed 05/21/25 Thu 05/22/25 Fri 05/23/25 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 90 75 89 75 90 76 90 Temp 75 84 90 80 75 83 89 80 75 84 90 81 76 84 90 80 Dewpt 72 74 76 75 72 73 76 75 72 73 75 74 72 73 75 73 PWind dir E E E E E E E E Wind char LT LT LT GN LT GN LT GN Avg clouds SC SC SC B1 B2 B1 B1 SC SC SC FW SC SC SC SC SC PoP 12hr 30 50 50 40 30 20 10 40 Rain shwrs S C C C C C C C C C S S S S C C Tstms S S $$ PRZ008-172000- Rafael Hernandez Airport-Aguadilla PR 18.50N 67.13W Elev. 237 ft 503 AM AST Sat May 17 2025 Date Sat 05/17/25 Sun 05/18/25 Mon 05/19/25 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 83 73 84 73 85 Temp 79 82 83 80 76 75 73 74 79 83 84 81 77 75 73 74 80 84 85 82 78 Dewpt 71 72 73 72 72 72 72 72 71 73 73 74 73 73 73 73 72 73 74 74 74 RH 77 72 72 77 87 90 97 93 77 72 70 79 87 94100 97 77 70 70 77 88 Wind dir E E E E E E E E E NE E NE E E E E E E NE NE E Wind spd 5 6 8 8 9 3 2 1 4 6 10 11 11 11 10 8 6 3 5 6 3 Clouds SC SC B2 B2 SC SC SC SC SC SC OV OV SC SC SC SC SC SC OV OV B2 PoP 12hr 60 10 70 30 70 QPF 12hr 0.58 0.02 0.66 0.03 0.59 Rain shwrs S C L L S S S S S S L L C C S S S S L L C Tstms S S S S S S S Heat index 87 89 84 83 89 90 86 84 90 93 88 Max heat 89 88 83 90 90 84 93 92 Date Tue 05/20/25 Wed 05/21/25 Thu 05/22/25 Fri 05/23/25 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 74 85 75 85 74 85 75 86 Temp 74 80 85 78 75 81 85 78 74 80 85 78 75 81 86 78 Dewpt 74 72 75 74 74 73 75 75 74 73 75 75 74 73 75 74 PWind dir E E E E E E E E Wind char LT LT GN GN GN GN GN GN Avg clouds B1 SC SC B2 B2 B1 SC B1 B1 SC SC B1 SC SC SC B2 PoP 12hr 50 70 50 50 40 60 10 60 Rain shwrs C S L L C C C C C C L L S S L L Tstms S S S S S $$ PRZ010-172000- Eugenio Maria de Hosto Airport-Mayaguez PR 18.27N 67.15W Elev. 28 ft 503 AM AST Sat May 17 2025 Date Sat 05/17/25 Sun 05/18/25 Mon 05/19/25 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 88 72 90 73 90 Temp 81 86 88 84 77 75 72 74 83 88 90 85 79 76 74 75 83 88 90 85 79 Dewpt 74 75 77 76 74 73 72 71 74 76 77 77 75 75 73 72 75 77 79 77 75 RH 79 70 70 77 90 94100 90 74 68 66 77 88 97 97 90 77 70 70 77 88 Wind dir E E S NE NE E E E NE W E NE E E E E E SE E NE E Wind spd 3 3 3 5 4 4 4 4 4 3 5 2 4 5 4 3 3 3 2 6 4 Clouds SC B1 OV OV SC SC SC SC SC SC OV OV SC SC SC SC SC SC B2 B2 SC PoP 12hr 80 30 90 30 60 QPF 12hr 1.03 0.04 1.19 0.04 0.27 Rain shwrs S C D L C S S S S S D D C C S S S S L L S Tstms S S S S S S Heat index 87 95100 92 89 99103 96 90100106 96 Max heat 87 100 98 89 103 102 90 106 105 Date Tue 05/20/25 Wed 05/21/25 Thu 05/22/25 Fri 05/23/25 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 73 90 73 90 73 91 73 92 Temp 74 83 90 79 74 83 90 79 74 84 91 79 74 84 92 79 Dewpt 74 75 78 76 74 75 78 76 74 75 78 76 74 76 78 76 PWind dir E E E E E E E E Wind char LT LT LT LT LT LT LT LT Avg clouds SC SC SC B2 B2 B1 SC B1 SC SC SC B1 SC SC SC B1 PoP 12hr 20 60 60 60 20 60 10 50 Rain shwrs S S L L L L L L S S L L S S C C Tstms S S S S S S $$ VIZ001-172000- CYRIL E. King Airport-St Thomas USVI 18.33N 64.97W Elev. 23 ft 503 AM AST Sat May 17 2025 Date Sat 05/17/25 Sun 05/18/25 Mon 05/19/25 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 86 77 87 78 88 Temp 82 85 86 83 80 78 77 78 83 86 87 84 81 79 78 79 84 87 88 85 82 Dewpt 75 75 75 74 75 75 74 74 75 75 76 75 75 75 75 74 76 76 76 76 75 RH 79 72 70 74 85 91 90 88 77 70 70 74 82 88 91 85 77 70 68 75 79 Wind dir E E E E E E E E E E E E E E E E E E E E E Wind spd 17 17 14 13 11 6 11 9 10 12 11 10 11 12 12 12 13 11 11 9 9 Clouds B2 OV OV B2 SC SC SC B2 B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B1 PoP 12hr 70 60 60 50 50 QPF 12hr 0.59 0.30 0.39 0.20 0.28 Rain shwrs L L L C S C C L C C L L C C C C C C C C C Tstms S S S S S S S S S S Heat index 88 93 95 90 85 90 95 98 93 87 84 83 93 97 99 95 89 Max heat 88 96 95 84 90 98 97 86 93 99 98 Date Tue 05/20/25 Wed 05/21/25 Thu 05/22/25 Fri 05/23/25 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 79 88 79 88 79 88 79 89 Temp 79 84 88 82 79 84 88 82 79 84 88 82 79 85 89 82 Dewpt 75 76 76 76 76 76 76 76 75 76 76 76 76 76 75 75 PWind dir E E E E E E E E Wind char GN GN GN GN BZ BZ BZ BZ Avg clouds B1 B1 B1 B1 B1 B1 SC B1 B1 SC SC B1 B1 B1 B1 SC PoP 12hr 40 40 40 50 40 40 50 50 Rain shwrs C C C C C C C C C C C C C C C C $$ VIZ002-172000- Henry E. Rohlsen Airport-St Croix USVI 17.70N 64.80W Elev. 74 ft 503 AM AST Sat May 17 2025 Date Sat 05/17/25 Sun 05/18/25 Mon 05/19/25 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 87 75 88 76 89 Temp 82 86 87 84 79 77 75 77 83 87 88 85 80 78 76 78 84 88 89 86 81 Dewpt 75 76 76 75 74 75 74 74 76 76 77 75 75 75 74 74 76 77 76 76 75 RH 79 72 70 74 85 94 97 90 80 70 70 72 85 91 94 88 77 70 66 72 82 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 17 17 18 12 6 8 10 9 12 10 9 9 10 10 10 13 13 11 9 6 Clouds B2 OV B2 B1 SC SC SC B1 B1 B2 B2 B2 B1 B1 B1 B1 B2 B2 B2 B2 B1 PoP 12hr 70 40 50 50 50 QPF 12hr 0.50 0.18 0.25 0.15 0.26 Rain shwrs L L C C S S C C C C C C C C C C C C C C C Tstms S S S S S S S S Heat index 88 95 98 91 83 91 97100 93 85 92100100 95 87 Max heat 88 98 97 91 100 100 83 92 101 100 Date Tue 05/20/25 Wed 05/21/25 Thu 05/22/25 Fri 05/23/25 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 89 77 89 77 89 78 89 Temp 77 84 89 81 77 84 89 81 77 84 89 82 78 84 89 81 Dewpt 75 76 76 76 76 76 76 75 75 76 77 75 75 76 76 75 PWind dir E E E E E E E E Wind char GN GN GN GN GN GN BZ BZ Avg clouds B1 B1 B1 B1 B1 B1 B1 B1 B2 B1 SC B1 B2 B2 B2 B1 PoP 12hr 40 40 40 50 50 50 50 50 Rain shwrs C C C C C C C C C C C C C C C C Tstms S S $$