Point Forecast Matrices
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
Versions:
1
2
556 FOCA52 TJSJ 042103 PFMSJU Point Forecast Matrices National Weather Service San Juan PR 503 PM AST Thu Sep 4 2025 PRZ001-050800- Luis Munoz Marin International Airport-San Juan 18.43N 66.00W Elev. 9 ft 503 PM AST Thu Sep 4 2025 Date 09/04/25 Fri 09/05/25 Sat 09/06/25 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 79 90 80 91 78 Temp 83 81 80 79 85 89 90 86 83 82 81 80 86 90 91 85 82 80 78 78 84 Dewpt 75 75 75 75 75 77 76 76 76 76 76 76 75 76 76 76 76 76 75 75 75 RH 77 82 85 88 72 68 64 72 80 82 85 88 70 64 62 75 82 88 91 91 74 Wind dir E E SE SE E E E E E E E E E E E E E E E E E Wind spd 10 9 5 4 8 13 14 13 10 9 9 8 9 13 14 12 9 8 6 5 8 Clouds SC SC B1 B2 B2 B1 B1 B2 B1 B1 B1 B1 SC SC B2 B2 SC SC SC SC SC PoP 12hr 60 60 40 60 40 QPF 12hr 0.41 0.91 0.15 0.63 0.09 Rain shwrs S C C L L C C L C C C C C C L L S S C C C Tstms S S S S Heat index 90 87 84 83 94101102 96 91 89 87 86 96102103 94 88 85 92 Max heat 94 88 94 102 101 90 96 104 102 87 92 Date 09/07 Mon 09/08/25 Tue 09/09/25 Wed 09/10/25 Thu 09/11/25 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 91 79 90 78 90 79 90 Temp 89 82 80 86 91 83 80 85 90 82 79 85 90 82 80 85 90 83 Dewpt 76 75 75 75 76 75 75 76 76 76 75 76 76 76 75 76 76 75 PWind dir E SE E E E E E E E Wind char GN LT GN GN GN LT GN GN GN Avg clouds B1 B2 SC SC B1 B2 SC SC B1 B1 FW SC B1 B1 FW FW SC B1 PoP 12hr 70 40 60 40 70 30 60 10 60 Rain shwrs L L C C L L C C L L S C L L S S L L Tstms S S S S S S S S S S $$ PRZ002-050800- Roosevelt Roads Naval Airstation-Ceiba PR 18.25N 65.63W Elev. 39 ft 503 PM AST Thu Sep 4 2025 Date 09/04/25 Fri 09/05/25 Sat 09/06/25 Sun AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 79 90 80 90 77 Temp 83 81 80 79 85 89 90 86 83 82 81 80 86 89 90 84 81 79 77 77 84 Dewpt 76 77 76 76 78 78 77 78 77 78 77 77 78 78 77 77 76 77 77 76 77 RH 80 88 88 91 80 70 66 77 82 88 88 91 77 70 66 80 85 94100 97 80 Wind dir E E E E E E E SE E E E E E E E E E E E E E Wind spd 11 11 10 9 8 12 13 12 12 12 11 11 11 12 11 10 10 10 9 9 10 Clouds SC B2 B2 B2 B2 B2 B2 B2 B2 B2 B1 B2 B2 B2 B2 B2 B2 B2 SC SC SC PoP 12hr 60 60 60 60 50 QPF 12hr 0.47 0.92 0.23 0.60 0.14 Rain shwrs C C C L L L L L L L C L L L C C C C C C C Tstms S S S S S S S Heat index 90 88 85 84 97103103 98 92 90 87 87 97103103 94 87 94 Max heat 96 89 97 104 103 91 97 103 102 85 94 Date 09/07 Mon 09/08/25 Tue 09/09/25 Wed 09/10/25 Thu 09/11/25 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 90 79 90 79 90 78 90 80 88 Temp 90 82 80 85 90 82 80 85 90 82 79 85 90 83 81 85 88 83 Dewpt 76 76 76 77 76 76 76 77 77 76 77 77 77 76 76 77 76 76 PWind dir E E E E E E E E E Wind char GN GN GN GN GN GN GN GN GN Avg clouds B1 B2 SC SC B1 B2 SC SC B1 B2 SC SC B1 B1 FW SC B1 B1 PoP 12hr 70 50 60 50 70 40 60 30 60 Rain shwrs L L C C L L C C L L C C L L S C L L Tstms S S S S S S S S S S $$ PRZ007-050800- Mercedita Airport-Ponce PR 18.02N 66.56W Elev. 26 ft 503 PM AST Thu Sep 4 2025 Date 09/04/25 Fri 09/05/25 Sat 09/06/25 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 77 88 78 89 75 Temp 80 79 78 77 84 87 88 84 81 79 78 78 85 88 89 83 80 78 76 76 83 Dewpt 73 73 72 72 72 72 74 74 74 74 73 73 74 72 73 73 73 72 72 72 72 RH 79 82 82 85 67 61 63 72 79 85 85 85 70 59 59 72 79 82 87 87 70 Wind dir E NE NE NE NE E SE E E NE NE E E E SE E E E NE NE E Wind spd 8 4 4 4 4 14 16 13 8 5 4 5 5 14 13 11 8 5 4 4 4 Wind gust 27 25 Clouds CL CL SC SC SC SC SC SC FW SC SC SC SC SC SC SC FW FW FW FW FW PoP 12hr 20 20 20 20 5 QPF 12hr 0.05 0.12 0.05 0.14 0.01 Rain shwrs S S S S S S S S S S S S S S S S Heat index 85 89 94 97 91 86 83 92 96 97 90 84 88 Max heat 89 84 89 97 96 85 92 97 96 88 Date 09/07 Mon 09/08/25 Tue 09/09/25 Wed 09/10/25 Thu 09/11/25 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 77 89 77 89 76 89 77 88 Temp 88 81 78 84 88 81 78 84 89 80 77 84 89 80 77 83 88 81 Dewpt 72 73 72 72 73 72 71 71 73 73 73 73 74 74 72 70 73 73 PWind dir E E E E E E E NE E Wind char GN LT GN LT GN LT GN LT GN Avg clouds FW SC FW FW SC SC FW SC SC SC FW FW FW SC FW FW SC SC PoP 12hr 20 20 30 40 40 10 20 20 20 Rain shwrs S S S S C C S C C S S S S S S S S S $$ PRZ008-050800- Rafael Hernandez Airport-Aguadilla PR 18.50N 67.13W Elev. 237 ft 503 PM AST Thu Sep 4 2025 Date 09/04/25 Fri 09/05/25 Sat 09/06/25 Sun AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 77 89 78 88 76 Temp 81 79 78 77 84 88 89 84 81 80 78 78 84 87 88 83 80 78 76 76 83 Dewpt 75 75 75 73 75 76 77 76 76 76 76 74 76 76 77 75 75 76 75 74 75 RH 82 88 91 87 74 68 68 77 85 88 94 88 77 70 70 77 85 94 97 94 77 Wind dir E E E E E E E E E E E E E E E E E E E E E Wind spd 9 8 8 9 10 12 14 13 10 9 11 10 11 10 11 11 13 8 10 9 8 Clouds B1 FW FW FW CL CL B1 OV SC SC FW FW CL CL OV OV SC SC FW FW FW PoP 12hr 40 80 10 70 10 QPF 12hr 0.04 1.99 0.02 1.44 0.01 Rain shwrs C C D S S S L L S S S S S Tstms S S S Heat index 86 83 92 99102 93 88 84 92 98100 90 84 90 Max heat 91 85 92 102 100 87 92 100 98 90 Date 09/07 Mon 09/08/25 Tue 09/09/25 Wed 09/10/25 Thu 09/11/25 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 88 77 88 76 88 76 88 77 86 Temp 88 80 78 83 88 80 77 83 88 80 77 83 88 80 77 82 86 80 Dewpt 76 75 75 75 76 74 75 75 77 76 75 75 77 75 75 75 77 75 PWind dir E E E E E E E E E Wind char LT LT LT GN GN LT LT GN GN Avg clouds SC B2 FW FW SC B2 SC SC SC B2 SC SC SC SC SC SC FW SC PoP 12hr 80 10 80 50 80 40 50 40 50 Rain shwrs D D S S D D C C D D C C C C C C C C Tstms C C C C C C S S $$ PRZ010-050800- Eugenio Maria de Hosto Airport-Mayaguez PR 18.27N 67.15W Elev. 28 ft 503 PM AST Thu Sep 4 2025 Date 09/04/25 Fri 09/05/25 Sat 09/06/25 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 75 93 76 93 74 Temp 80 78 76 76 85 91 93 86 81 78 77 76 86 91 93 85 80 77 75 74 84 Dewpt 76 76 74 73 75 77 79 77 77 76 75 75 77 78 78 77 76 76 75 74 76 RH 88 94 94 90 72 64 64 75 88 94 94 97 75 66 62 77 88 97100100 77 Wind dir NE E NE E E E E NE E E NE E E E E E E E E E E Wind spd 4 6 4 4 4 2 2 3 3 4 4 4 4 2 3 1 3 4 4 3 3 Clouds SC CL FW FW CL CL B1 OV FW FW FW FW CL CL B2 B2 CL CL CL CL CL PoP 12hr 20 80 0 60 0 QPF 12hr 0.02 2.02 0 1.03 0 Rain shwrs S C D L L Tstms S S S S Heat index 87 94105110 96 88 96106109 95 84 93 Max heat 95 84 94 110 108 85 96 109 107 93 Date 09/07 Mon 09/08/25 Tue 09/09/25 Wed 09/10/25 Thu 09/11/25 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 92 75 93 74 92 74 93 75 91 Temp 92 80 76 86 93 80 75 84 92 80 75 85 93 80 75 84 91 81 Dewpt 78 76 75 76 78 77 74 76 79 77 75 76 79 77 75 76 79 77 PWind dir E E E E E E E E E Wind char LT LT LT LT LT LT LT LT LT Avg clouds SC B1 CL FW SC B2 SC SC SC B1 SC SC SC B2 SC SC SC B2 PoP 12hr 80 10 70 50 60 20 80 30 70 Rain shwrs D D S L L C C L L S S D D C C L L Tstms C C S S S S C C S S $$ VIZ001-050800- CYRIL E. King Airport-St Thomas USVI 18.33N 64.97W Elev. 23 ft 503 PM AST Thu Sep 4 2025 Date 09/04/25 Fri 09/05/25 Sat 09/06/25 Sun AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 80 90 81 91 79 Temp 83 82 81 80 86 89 90 86 84 82 81 81 87 90 91 86 82 81 79 79 85 Dewpt 76 77 77 77 78 78 78 78 78 78 77 77 78 78 77 77 77 77 77 77 77 RH 80 85 88 91 77 70 68 77 82 88 88 88 75 68 64 75 85 88 94 94 77 Wind dir E E E E E E E SE E E E E E E E E E E E E E Wind spd 16 18 14 13 14 16 16 17 17 19 18 16 16 14 14 13 14 16 14 14 16 Clouds SC B2 B2 B1 B2 B2 B2 B2 B1 B1 B2 B2 SC SC SC SC B2 B2 SC SC SC PoP 12hr 60 60 50 50 50 QPF 12hr 0.38 0.50 0.19 0.23 0.14 Rain shwrs C C C C L C C C C C C C C C C C C C C C C Tstms S S S S S S S Heat index 92 90 88 87 98104104 98 94 92 89 89100104104 97 91 88 84 84 95 Max heat 97 91 98 105 104 93 100 105 104 89 95 Date 09/07 Mon 09/08/25 Tue 09/09/25 Wed 09/10/25 Thu 09/11/25 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 89 80 90 80 90 80 90 80 90 Temp 89 83 80 86 90 83 81 86 90 83 81 86 90 83 81 86 90 85 Dewpt 77 77 77 77 77 77 77 78 78 77 77 78 77 77 77 78 76 77 PWind dir E E E E E E E E E Wind char GN BZ BZ BZ BZ BZ BZ BZ BZ Avg clouds SC SC SC SC SC SC SC SC SC SC SC SC SC SC FW SC SC SC PoP 12hr 50 50 50 50 50 40 40 30 40 Rain shwrs C C C C C C C C C C C C C C S C C C $$ VIZ002-050800- Henry E. Rohlsen Airport-St Croix USVI 17.70N 64.80W Elev. 74 ft 503 PM AST Thu Sep 4 2025 Date 09/04/25 Fri 09/05/25 Sat 09/06/25 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 79 91 80 91 77 Temp 83 81 80 79 86 90 91 86 83 82 81 80 86 90 91 85 81 79 78 77 84 Dewpt 76 76 76 76 78 77 77 77 77 77 77 77 77 76 76 77 76 76 76 76 76 RH 80 85 88 91 77 66 64 75 82 85 88 91 75 64 62 77 85 91 94 97 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 14 14 12 11 13 14 16 14 13 16 14 13 13 14 13 12 12 13 11 12 12 Clouds SC B2 B1 B2 B2 B1 B1 B2 SC B1 B2 B2 SC SC SC SC B2 B2 SC SC SC PoP 12hr 60 60 50 50 50 QPF 12hr 0.37 0.48 0.18 0.23 0.14 Rain shwrs S C C C L C C C C C C C C C C C C C C C C Tstms S S S S S Heat index 90 87 85 84 98103104 98 93 89 87 87 97102103 95 88 83 94 Max heat 95 89 98 104 104 91 97 103 102 86 94 Date 09/07 Mon 09/08/25 Tue 09/09/25 Wed 09/10/25 Thu 09/11/25 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 79 91 79 91 78 91 78 89 Temp 90 82 80 86 91 83 80 86 91 82 79 86 91 82 79 84 89 83 Dewpt 76 76 76 76 76 76 76 77 77 76 76 77 77 76 76 76 76 76 PWind dir E E E E E E E E E Wind char GN GN BZ GN GN GN BZ BZ BZ Avg clouds SC SC SC SC SC SC SC SC SC SC SC SC SC SC FW SC SC SC PoP 12hr 50 50 50 50 50 50 50 30 50 Rain shwrs C C C C C C C C C C C C C C S C C C $$