Point Forecast Matrices
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
Versions:
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313 FOCA52 TJSJ 120903 PFMSJU Point Forecast Matrices National Weather Service San Juan PR 503 AM AST Sat Jul 12 2025 PRZ001-122000- Luis Munoz Marin International Airport-San Juan 18.43N 66.00W Elev. 9 ft 503 AM AST Sat Jul 12 2025 Date Sat 07/12/25 Sun 07/13/25 Mon 07/14/25 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 89 77 88 76 89 Temp 85 88 89 86 81 79 77 78 84 87 88 85 80 78 76 78 84 88 89 86 81 Dewpt 74 74 74 74 74 74 73 73 74 73 73 74 73 73 73 72 73 73 73 73 73 RH 70 63 61 68 79 85 87 85 72 63 61 70 79 85 90 82 70 61 59 65 77 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 12 14 13 12 9 8 8 8 8 11 11 12 10 9 9 5 8 13 17 13 9 Clouds SC CL SC FW SC SC SC SC SC SC SC SC SC SC SC SC B1 B1 B2 B2 SC PoP 12hr 30 20 20 40 50 QPF 12hr 0.03 0.05 0.05 0.07 0.14 Rain shwrs C S S S S S S S S S C C C C C C S Obvis H H H H H H H H H Heat index 93 97 98 94 86 83 91 95 96 93 84 90 96 97 93 86 Max heat 93 98 97 85 91 96 95 83 90 97 96 Heat Y Y Date Tue 07/15/25 Wed 07/16/25 Thu 07/17/25 Fri 07/18/25 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 78 88 78 91 79 91 Temp 77 85 90 82 78 84 88 81 78 86 91 83 79 86 91 82 Dewpt 73 74 75 75 75 75 76 76 76 76 76 76 75 75 75 74 PWind dir E E E E E E E E Wind char GN BZ GN GN GN BZ GN GN Avg clouds SC B2 B2 SC SC SC B1 B2 B2 B1 SC FW CL FW SC FW PoP 12hr 60 60 30 70 50 30 20 20 Rain shwrs C L L C C C L L C C C S S S S Tstms S S S S $$ PRZ002-122000- Roosevelt Roads Naval Airstation-Ceiba PR 18.25N 65.63W Elev. 39 ft 503 AM AST Sat Jul 12 2025 Date Sat 07/12/25 Sun 07/13/25 Mon 07/14/25 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 89 78 88 78 88 Temp 85 88 89 86 82 80 78 79 84 87 88 86 81 80 78 79 84 87 88 86 81 Dewpt 74 75 73 74 74 74 73 73 73 73 73 73 73 73 73 72 73 73 73 73 73 RH 70 66 59 68 77 82 85 82 70 63 61 65 77 79 85 79 70 63 61 65 77 Wind dir E E E E E E E E E E E E E E E E E E E E E Wind spd 13 13 10 11 8 9 9 10 10 10 10 10 10 9 9 8 12 12 13 14 11 Clouds SC SC SC SC SC SC SC SC SC SC SC SC SC SC B2 B2 B2 B2 B2 B2 SC PoP 12hr 30 20 20 50 50 QPF 12hr 0.05 0.05 0.06 0.12 0.16 Rain shwrs C S S S S S S S S S S S C C C C C C S Obvis H H H H H H H H H Heat index 93 98 97 94 88 84 83 90 95 96 92 86 84 83 90 95 96 92 86 Max heat 93 98 98 86 90 96 95 85 90 96 95 Heat Y Y Date Tue 07/15/25 Wed 07/16/25 Thu 07/17/25 Fri 07/18/25 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 78 88 79 88 80 89 79 89 Temp 78 84 88 82 79 84 88 83 80 85 89 82 79 85 89 82 Dewpt 73 74 75 75 75 75 76 76 76 76 76 76 75 75 75 74 PWind dir E E E E E E E E Wind char GN BZ GN GN BZ BZ GN GN Avg clouds SC B2 B2 SC SC SC B1 OV OV B2 SC FW CL FW SC FW PoP 12hr 60 60 30 70 70 40 20 20 Rain shwrs C L L C C C L L L L C S S S S Tstms S S S S $$ PRZ007-122000- Mercedita Airport-Ponce PR 18.02N 66.56W Elev. 26 ft 503 AM AST Sat Jul 12 2025 Date Sat 07/12/25 Sun 07/13/25 Mon 07/14/25 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 91 75 90 75 90 Temp 85 90 91 87 80 78 76 77 84 89 90 86 80 78 76 77 84 89 90 86 80 Dewpt 72 75 75 75 73 71 71 70 71 73 74 75 73 71 71 70 72 74 74 75 73 RH 65 62 60 68 79 79 85 79 65 59 60 70 79 79 85 79 67 61 60 70 79 Wind dir E SE SE SE E NE NE NE E E SE SE E NE E E E E SE SE E Wind spd 5 14 17 12 8 6 5 3 5 13 16 13 6 5 5 4 6 14 16 13 11 Wind gust 25 28 24 27 26 24 Clouds CL CL CL CL CL CL CL CL CL SC SC SC CL CL CL CL SC SC SC SC FW PoP 12hr 0 0 30 30 30 QPF 12hr 0.01 0 0.06 0.02 0.05 Rain shwrs S C C C S S Obvis H H H H H H H H H Heat index 91100102 96 85 89 97 99 95 84 90 98 99 95 84 Max heat 91 102 101 83 89 100 99 83 90 99 99 Heat Y Y Date Tue 07/15/25 Wed 07/16/25 Thu 07/17/25 Fri 07/18/25 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 76 91 77 91 77 93 Temp 76 85 91 81 77 85 91 82 78 85 91 82 78 87 93 81 Dewpt 71 72 75 73 72 73 77 75 73 75 77 74 72 73 76 74 PWind dir E E E E E E E E Wind char GN GN LT GN GN BZ LT GN Avg clouds FW SC B1 B1 B1 SC SC SC SC SC FW SC CL CL FW SC PoP 12hr 30 40 40 30 20 20 0 30 Rain shwrs S C C C C C C C S S S S C C Tstms S S S $$ PRZ008-122000- Rafael Hernandez Airport-Aguadilla PR 18.50N 67.13W Elev. 237 ft 503 AM AST Sat Jul 12 2025 Date Sat 07/12/25 Sun 07/13/25 Mon 07/14/25 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 87 75 87 75 87 Temp 83 86 87 84 79 77 75 77 82 86 87 84 79 77 75 77 82 86 87 84 79 Dewpt 73 74 74 73 74 74 74 74 72 73 74 73 73 74 74 73 72 73 74 73 74 RH 72 68 65 70 85 90 97 90 72 65 65 70 82 90 97 87 72 65 65 70 85 Wind dir E E E E E E E E E E E E E E E E E E E E E Wind spd 12 18 17 12 12 14 13 11 11 12 12 9 13 13 12 11 10 8 12 12 11 Clouds FW CL CL CL SC CL CL FW CL CL SC SC FW FW FW FW SC SC OV OV SC PoP 12hr 10 10 30 5 70 QPF 12hr 0.01 0.01 0.05 0.02 0.59 Rain shwrs S S C S S S S S S L L S Tstms S S Obvis H H H H H H H H H Heat index 88 94 95 90 83 87 93 95 90 82 87 93 95 90 83 Max heat 88 96 96 87 95 95 87 95 94 Heat Y Y Date Tue 07/15/25 Wed 07/16/25 Thu 07/17/25 Fri 07/18/25 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 75 87 76 87 76 89 77 88 Temp 75 82 87 80 76 83 87 80 76 84 89 81 77 84 88 80 Dewpt 74 72 75 74 75 75 76 75 76 75 77 76 76 74 76 74 PWind dir E E E E E E E E Wind char GN BZ GN BZ GN BZ GN BZ Avg clouds FW FW B1 B2 B2 B1 SC B1 B1 SC FW SC CL FW SC FW PoP 12hr 30 70 50 40 40 30 5 10 Rain shwrs S C L L C C C C C C C C S S S Tstms S S S S S S S S $$ PRZ010-122000- Eugenio Maria de Hosto Airport-Mayaguez PR 18.27N 67.15W Elev. 28 ft 503 AM AST Sat Jul 12 2025 Date Sat 07/12/25 Sun 07/13/25 Mon 07/14/25 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 91 73 91 73 89 Temp 84 90 91 87 79 76 74 75 84 90 91 87 79 76 74 75 83 88 89 85 78 Dewpt 74 77 78 77 76 74 73 72 74 76 77 76 75 74 73 72 74 76 76 76 75 RH 72 66 66 72 91 94 97 90 72 64 64 70 88 94 97 90 74 68 66 75 91 Wind dir E E SW NE NE E NE E E E SW N E E E E E E E E E Wind spd 6 6 3 2 9 5 8 6 4 2 5 4 8 5 5 5 3 1 3 3 4 Clouds CL CL SC B2 SC CL CL CL CL CL B2 B2 FW FW CL CL CL CL OV OV FW PoP 12hr 50 10 60 5 70 QPF 12hr 0.31 0.01 0.57 0 0.76 Rain shwrs S C S C L L L Tstms S S S Obvis H H H H H H H H Heat index 91103106 98 83 91101105 97 83 89 99100 94 Max heat 91 106 105 91 105 104 89 101 100 Heat Y Y Date Tue 07/15/25 Wed 07/16/25 Thu 07/17/25 Fri 07/18/25 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 92 73 90 75 93 74 93 Temp 74 84 92 79 74 83 90 80 76 86 93 80 75 85 93 80 Dewpt 72 74 77 76 73 75 79 77 75 76 79 77 75 75 79 77 PWind dir E E E E E E E E Wind char LT LT LT LT LT LT LT LT Avg clouds FW FW SC OV OV B1 SC OV OV B1 SC B1 CL CL SC SC PoP 12hr 5 70 70 70 70 70 0 50 Rain shwrs L L L L L L L L L L C C Tstms S S S S S S S S S S S S $$ VIZ001-122000- CYRIL E. King Airport-St Thomas USVI 18.33N 64.97W Elev. 23 ft 503 AM AST Sat Jul 12 2025 Date Sat 07/12/25 Sun 07/13/25 Mon 07/14/25 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 88 80 88 79 88 Temp 85 87 88 86 83 81 80 81 85 87 88 86 82 81 79 80 84 87 88 86 83 Dewpt 74 74 75 75 74 74 74 74 74 73 74 74 74 75 74 75 74 74 74 73 74 RH 70 65 66 70 74 79 82 79 70 63 63 68 77 82 85 85 72 65 63 65 74 Wind dir E E E E E E E E E E E E E E E E E E E E E Wind spd 17 13 14 12 13 14 13 13 13 12 12 14 14 17 13 17 14 17 18 17 18 Clouds SC SC SC SC CL FW SC FW SC SC SC SC SC SC B1 B1 B1 B1 B1 B1 SC PoP 12hr 20 20 20 40 40 QPF 12hr 0.03 0.02 0.05 0.09 0.14 Rain shwrs S S S S S S S S S S C C C C C C C Obvis H H H H H H H H H Heat index 93 96 98 95 89 87 85 86 92 95 97 94 88 86 83 85 92 96 97 93 89 Max heat 93 98 97 89 92 97 96 87 92 97 96 Date Tue 07/15/25 Wed 07/16/25 Thu 07/17/25 Fri 07/18/25 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 80 90 81 88 81 91 81 90 Temp 80 86 90 84 81 85 88 83 81 87 91 84 81 86 90 83 Dewpt 74 75 75 76 76 77 77 77 77 77 77 76 76 75 76 76 PWind dir E E E E E E E E Wind char BZ BZ BZ BZ BZ BZ BZ BZ Avg clouds B1 SC SC B1 SC B1 B2 B2 B2 B1 B1 SC SC SC SC FW PoP 12hr 40 50 40 70 50 40 10 10 Rain shwrs C C C C C C L L C C C S S S S S Tstms S S S S $$ VIZ002-122000- Henry E. Rohlsen Airport-St Croix USVI 17.70N 64.80W Elev. 74 ft 503 AM AST Sat Jul 12 2025 Date Sat 07/12/25 Sun 07/13/25 Mon 07/14/25 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 89 77 89 77 89 Temp 85 88 89 86 81 79 77 79 84 88 89 86 81 79 77 79 84 88 89 86 81 Dewpt 74 74 74 73 74 74 73 73 73 73 74 73 73 73 73 73 73 74 74 73 73 RH 70 63 61 65 79 85 87 82 70 61 61 65 77 82 87 82 70 63 61 65 77 Wind dir E E E E E E NE E E E E E E E E E E E E E E Wind spd 16 14 14 13 11 13 13 14 14 13 12 12 12 13 11 13 13 16 17 16 14 Clouds SC SC SC FW SC FW SC CL FW SC SC SC SC SC SC SC SC SC B2 B2 SC PoP 12hr 30 10 20 20 50 QPF 12hr 0.03 0.02 0.05 0.05 0.12 Rain shwrs C S S S S S S S S S S S S C C C Obvis H H H H H H H H H Heat index 92 97 98 93 86 83 91 96 98 93 86 82 91 97 98 93 86 Max heat 92 98 97 85 91 98 97 85 91 98 97 Date Tue 07/15/25 Wed 07/16/25 Thu 07/17/25 Fri 07/18/25 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 78 88 78 89 79 89 Temp 77 84 89 82 78 84 88 81 78 85 89 82 79 85 89 82 Dewpt 74 74 75 75 75 76 77 75 76 77 77 76 75 75 75 74 PWind dir E E E E E E E E Wind char BZ BZ BZ BZ BZ BZ BZ BZ Avg clouds SC SC SC B1 SC SC B1 B1 SC SC SC SC CL FW SC FW PoP 12hr 30 50 30 40 30 30 10 10 Rain shwrs C C C C C C C C C C C S S S S Tstms S S $$