Point Forecast Matrices
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
Versions:
1
2
117 FOCA52 TJSJ 212103 PFMSJU Point Forecast Matrices National Weather Service San Juan PR 503 PM AST Thu Aug 21 2025 PRZ001-220800- Luis Munoz Marin International Airport-San Juan 18.43N 66.00W Elev. 9 ft 503 PM AST Thu Aug 21 2025 Date 08/21/25 Fri 08/22/25 Sat 08/23/25 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 88 79 88 80 Temp 83 82 81 81 85 88 88 85 82 81 80 80 85 87 88 86 83 82 80 81 87 Dewpt 75 75 75 74 75 76 76 77 77 76 76 76 76 76 76 76 76 76 76 76 77 RH 77 79 82 79 72 68 68 77 85 85 88 88 75 70 68 72 80 82 88 85 72 Wind dir E E E E E NE NE NE NE E E N SE E SE SE SE SE SE SE E Wind spd 9 10 9 8 9 10 12 9 8 8 5 5 6 8 9 9 8 5 4 5 6 Clouds CL CL CL CL B2 B2 B1 B1 B1 B2 B1 SC CL CL B2 B2 SC SC SC SC SC PoP 12hr 50 50 50 50 10 QPF 12hr 0.05 0.57 0.37 0.79 0.01 Rain shwrs C C C C C C C S C C C C S S S S S Tstms S S S S S S S Obvis H H H H Heat index 90 89 87 86 94 99 99 96 90 87 86 86 94 98 99 96 91 89 86 87 99 Max heat 96 90 94 99 99 88 94 99 99 89 99 Date 08/24 Mon 08/25/25 Tue 08/26/25 Wed 08/27/25 Thu 08/28/25 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 80 90 80 88 79 89 79 90 Temp 92 84 81 86 90 83 81 85 88 82 80 85 89 82 80 86 90 83 Dewpt 77 76 76 76 76 76 75 75 76 76 76 76 77 76 76 76 76 74 PWind dir E E E E E E E SE E Wind char GN GN GN GN GN GN GN LT GN Avg clouds SC SC SC SC SC SC SC B1 B1 SC B1 B1 B1 SC SC SC SC SC PoP 12hr 20 40 40 50 50 50 50 20 50 Rain shwrs S S S C C C C C C C C C C C S S S C Tstms S S S S S $$ PRZ002-220800- Roosevelt Roads Naval Airstation-Ceiba PR 18.25N 65.63W Elev. 39 ft 503 PM AST Thu Aug 21 2025 Date 08/21/25 Fri 08/22/25 Sat 08/23/25 Sun AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 80 89 77 88 79 Temp 83 82 81 81 86 88 89 85 81 79 78 78 84 87 88 85 82 81 80 80 86 Dewpt 76 75 75 75 76 77 77 77 77 77 77 76 77 78 78 78 77 78 77 77 78 RH 80 79 82 82 72 70 68 77 88 94 97 94 80 75 72 80 85 91 91 91 77 Wind dir NE NE NE NE NE NE NE NE NE NE E E E SE SE SE SE SE SE SE E Wind spd 10 11 10 9 10 11 11 8 9 8 6 6 6 8 9 8 5 8 9 8 11 Clouds CL CL CL FW B2 B2 B2 B2 B2 B2 B2 B2 CL CL SC SC SC SC SC SC SC PoP 12hr 50 60 60 50 30 QPF 12hr 0.07 0.81 0.73 0.46 0.10 Rain shwrs S L C L L L L C C C C S S C C C C S Tstms S S S S S S S S S S Obvis H H H H Heat index 91 89 87 87 96100102 96 88 94100102 97 90 89 87 87 98 Max heat 98 91 96 102 100 87 94 102 102 89 98 Date 08/24 Mon 08/25/25 Tue 08/26/25 Wed 08/27/25 Thu 08/28/25 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 90 81 90 80 89 79 89 79 89 Temp 90 84 82 87 90 83 81 86 89 82 80 85 89 82 80 85 89 82 Dewpt 78 77 77 76 77 76 77 77 77 77 76 77 77 76 77 77 76 74 PWind dir E E E E E E E E SE Wind char GN GN GN GN GN GN GN GN GN Avg clouds SC SC SC SC SC SC SC B1 B1 B1 B1 B1 B1 B1 B2 B1 B1 B2 PoP 12hr 20 40 40 50 50 50 50 50 50 Rain shwrs S S S C C C C C C C C C C C C C C C Tstms S S S S S S S S S $$ PRZ007-220800- Mercedita Airport-Ponce PR 18.02N 66.56W Elev. 26 ft 503 PM AST Thu Aug 21 2025 Date 08/21/25 Fri 08/22/25 Sat 08/23/25 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 77 85 79 Temp 82 80 78 78 84 88 89 85 81 79 78 78 82 85 85 83 81 80 79 80 86 Dewpt 76 74 73 72 74 77 79 79 77 76 75 74 76 78 79 78 77 76 75 75 78 RH 82 82 85 82 72 70 73 82 88 91 91 88 82 80 82 85 88 88 88 85 77 Wind dir NE NE NE NE E E SE SE N N N N E SE SE SE E E E E E Wind spd 8 6 6 5 5 9 11 2 4 4 3 3 3 9 9 6 5 6 5 5 6 Clouds CL SC CL CL SC SC SC SC B2 B2 B1 B1 CL CL SC SC SC SC SC SC SC PoP 12hr 20 60 60 40 10 QPF 12hr 0.02 0.34 0.65 0.43 0.01 Rain shwrs S S S C S L L C C C C C C S S S S S Tstms S S S Obvis H H H H Heat index 89 84 91100105 98 88 89 97 98 93 88 86 85 98 Max heat 100 87 91 105 103 87 89 98 98 88 98 Date 08/24 Mon 08/25/25 Tue 08/26/25 Wed 08/27/25 Thu 08/28/25 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 91 78 91 79 90 77 88 77 88 Temp 91 82 79 86 91 83 80 86 90 81 78 84 88 81 78 84 88 81 Dewpt 79 77 74 76 77 75 73 75 78 77 74 76 79 77 74 76 79 74 PWind dir E E E NE E NE E E E Wind char GN LT GN LT GN LT GN LT GN Avg clouds SC SC CL CL FW SC FW FW SC SC SC SC SC SC SC SC SC SC PoP 12hr 20 0 30 5 30 30 30 20 20 Rain shwrs S S C C S C C S C C S S S S S $$ PRZ008-220800- Rafael Hernandez Airport-Aguadilla PR 18.50N 67.13W Elev. 237 ft 503 PM AST Thu Aug 21 2025 Date 08/21/25 Fri 08/22/25 Sat 08/23/25 Sun AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 78 89 77 87 78 Temp 82 80 79 79 85 88 89 85 81 79 78 78 83 86 87 84 81 80 79 79 84 Dewpt 75 75 75 74 75 76 76 75 76 76 76 75 76 76 76 75 76 76 75 75 76 RH 79 85 88 85 72 68 66 72 85 91 94 91 80 72 70 74 85 88 88 88 77 Wind dir E E E E E E NE NE E E E E E E NE E E E SE E E Wind spd 17 13 13 12 13 14 17 17 13 13 11 10 9 6 3 3 3 3 4 4 6 Clouds CL FW CL CL FW FW SC FW SC SC FW CL CL CL OV OV B2 B2 B2 B2 B1 PoP 12hr 10 20 20 70 60 QPF 12hr 0.01 0.07 0.04 1.10 0.33 Rain shwrs S S S S S S L L L L L L C Tstms S S S S S S Heat index 89 85 94 99100 94 87 91 96 98 92 87 86 93 Max heat 95 87 94 100 99 86 91 98 98 86 93 Date 08/24 Mon 08/25/25 Tue 08/26/25 Wed 08/27/25 Thu 08/28/25 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 88 78 89 79 88 77 88 76 88 Temp 88 81 79 85 89 82 80 85 88 81 78 84 88 80 77 83 88 80 Dewpt 77 77 76 76 77 76 75 75 77 76 76 76 77 76 76 76 76 74 PWind dir E E E E NE E E E E Wind char GN GN BZ BZ BZ GN GN LT LT Avg clouds B2 B2 SC SC FW SC CL FW SC SC FW FW SC B1 CL FW B1 B1 PoP 12hr 70 30 20 5 20 5 70 20 60 Rain shwrs L L C C S S S S L L S L L Tstms S S S S S S $$ PRZ010-220800- Eugenio Maria de Hosto Airport-Mayaguez PR 18.27N 67.15W Elev. 28 ft 503 PM AST Thu Aug 21 2025 Date 08/21/25 Fri 08/22/25 Sat 08/23/25 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 94 75 89 77 Temp 81 79 76 77 87 93 94 88 81 79 76 76 84 88 89 85 81 79 78 79 87 Dewpt 76 75 74 73 75 77 78 77 77 76 76 75 76 78 79 78 77 76 76 75 76 RH 85 88 94 87 68 60 60 70 88 91100 97 77 72 73 80 88 91 94 88 70 Wind dir NE NE NE NE NE E S NE NE NE NE E E S S SE E E SE E E Wind spd 10 11 11 10 10 9 5 11 10 9 8 5 3 2 3 3 3 4 5 5 4 Clouds CL SC CL CL FW FW SC FW SC SC SC FW CL CL OV OV B1 B1 B1 B1 B1 PoP 12hr 20 30 30 70 40 QPF 12hr 0.03 0.07 0.07 1.09 0.27 Rain shwrs S S S C C S S S S L L C C C C C Tstms S S Obvis H H H H Heat index 87 96107110100 88 93102105 97 88 98 Max heat 102 86 96 110 109 87 93 105 103 87 98 Date 08/24 Mon 08/25/25 Tue 08/26/25 Wed 08/27/25 Thu 08/28/25 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 93 75 94 75 94 75 92 76 92 Temp 93 81 76 87 94 81 76 87 94 81 76 86 92 81 77 86 92 81 Dewpt 79 78 75 76 78 76 75 76 78 77 75 76 78 77 76 76 79 73 PWind dir E E E E E E E E SE Wind char LT LT LT GN LT LT LT LT LT Avg clouds B2 B1 CL CL FW SC CL CL SC SC FW FW SC B1 CL FW SC SC PoP 12hr 70 0 40 0 40 5 60 20 50 Rain shwrs L L C C C C L L S C C Tstms S S S S S S $$ VIZ001-220800- CYRIL E. King Airport-St Thomas USVI 18.33N 64.97W Elev. 23 ft 503 PM AST Thu Aug 21 2025 Date 08/21/25 Fri 08/22/25 Sat 08/23/25 Sun AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 81 91 81 89 82 Temp 84 83 82 82 87 90 91 88 84 83 82 82 86 89 89 87 84 83 82 83 88 Dewpt 76 76 76 76 77 77 77 78 77 77 77 76 77 78 77 78 78 78 78 78 78 RH 77 80 82 82 72 66 64 72 80 82 85 82 75 70 68 75 82 85 88 85 72 Wind dir NE NE NE NE NE NE NE NE E E E SE SE SE SE SE SE SE E E E Wind spd 16 16 16 14 16 14 14 13 13 12 10 9 10 10 11 10 10 11 14 14 14 Clouds CL CL CL SC B2 B2 B2 B2 B2 B2 B2 B2 CL CL SC SC SC SC SC SC SC PoP 12hr 50 60 60 60 30 QPF 12hr 0.08 0.79 0.74 0.61 0.10 Rain shwrs S L C L L C C C C L L C C C C C C S Tstms S S S S S S S S S S Obvis H H H H Heat index 93 91 89 89 99103105102 94 92 90 89 97103102100 95 93 91 93102 Max heat 99 93 99 105 105 94 97 103 102 95 102 Date 08/24 Mon 08/25/25 Tue 08/26/25 Wed 08/27/25 Thu 08/28/25 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 92 82 92 81 91 81 91 81 92 Temp 92 85 83 88 92 85 82 87 91 84 82 87 91 84 82 88 92 85 Dewpt 77 78 77 77 77 77 78 77 78 78 78 77 77 78 77 77 77 74 PWind dir E E E E E E E E SE Wind char BZ BZ BZ BZ BZ BZ BZ GN GN Avg clouds SC SC SC SC SC SC SC SC SC SC SC B1 B1 B1 B2 B1 B1 B1 PoP 12hr 30 30 30 30 30 40 50 50 50 Rain shwrs C C S C C C C C C C C C C C C C C C Tstms S S S S S $$ VIZ002-220800- Henry E. Rohlsen Airport-St Croix USVI 17.70N 64.80W Elev. 74 ft 503 PM AST Thu Aug 21 2025 Date 08/21/25 Fri 08/22/25 Sat 08/23/25 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 78 89 78 88 79 Temp 82 80 79 79 85 88 89 86 82 80 79 79 84 87 88 85 82 81 80 80 86 Dewpt 75 75 75 76 77 77 77 77 77 76 76 76 77 78 78 78 77 78 77 77 78 RH 79 85 88 91 77 70 68 75 85 88 91 91 80 75 72 80 85 91 91 91 77 Wind dir NE NE NE NE NE E E E E E E SE SE SE SE SE E E E E E Wind spd 13 13 13 14 14 12 12 10 9 8 6 6 9 11 11 10 9 10 10 12 16 Clouds CL CL CL SC B2 B2 SC SC B2 B2 B2 B2 CL CL SC SC SC SC SC SC SC PoP 12hr 50 60 60 60 30 QPF 12hr 0.12 0.31 0.74 0.61 0.10 Rain shwrs C L L S S C C C C L L C C C C C C S Tstms S S S S S S S S S Obvis H H H Heat index 89 85 96100102 97 90 86 94100102 97 90 89 87 87 98 Max heat 95 87 96 102 100 88 94 102 102 89 98 Date 08/24 Mon 08/25/25 Tue 08/26/25 Wed 08/27/25 Thu 08/28/25 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 91 79 90 78 90 79 90 79 90 Temp 91 83 80 86 90 82 79 85 90 83 80 86 90 83 80 86 90 83 Dewpt 77 77 77 76 77 76 76 77 77 76 77 77 77 76 77 77 76 75 PWind dir E E E E E E E E SE Wind char BZ BZ BZ BZ GN GN GN GN GN Avg clouds SC SC SC SC SC SC SC SC SC SC SC SC B1 B1 B2 B1 SC B1 PoP 12hr 30 20 20 20 20 50 50 50 50 Rain shwrs C C S S S S S S S S S C C C C C C C Tstms S S S S S S S $$