Point Forecast Matrices
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
503 FOCA52 TJSJ 170903 PFMSJU Point Forecast Matrices National Weather Service San Juan PR 503 AM AST Wed Jul 17 2024 PRZ001-172000- Luis Munoz Marin International Airport-San Juan 18.43N 66.00W Elev. 9 ft 503 AM AST Wed Jul 17 2024 Date Wed 07/17/24 Thu 07/18/24 Fri 07/19/24 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 92 81 91 80 90 Temp 87 91 92 89 85 83 81 82 87 90 91 88 84 82 80 81 86 89 90 87 83 Dewpt 77 77 77 78 78 78 78 77 78 78 77 77 78 78 77 77 77 78 78 78 77 RH 72 64 62 70 80 85 91 85 75 68 64 70 82 88 91 88 75 70 68 75 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 10 16 17 13 10 11 11 11 13 18 17 14 12 12 12 12 14 18 17 13 11 Clouds B1 B1 B1 B1 B2 B2 B2 B1 B1 SC B1 SC B1 B1 B1 B1 B1 B1 B1 B1 B2 PoP 12hr 50 60 60 60 60 QPF 12hr 0.60 0.20 0.11 0.09 0.26 Rain shwrs C C C C C C L C C C S S L L L L C C C C L Tstms S S S S S S S S S S S S S S S S S S Obvis H H Heat index 98105106103 96 92 90 91100104105101 94 91 88 89 97103104100 92 Max heat 98 106 106 95 100 105 104 93 97 104 103 Heat Y Y Date Sat 07/20/24 Sun 07/21/24 Mon 07/22/24 Tue 07/23/24 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 80 89 79 88 79 90 Temp 79 85 89 83 80 85 89 82 79 84 88 82 79 86 90 83 Dewpt 77 78 78 78 77 78 77 76 76 76 77 77 76 76 77 76 PWind dir E E E E E E E E Wind char GN GN GN GN GN GN GN GN Avg clouds B2 B2 OV B2 B2 B1 SC SC SC SC SC FW FW FW SC SC PoP 12hr 80 80 60 30 30 30 10 30 Rain shwrs L D D D L L C C C C C S S S C C Tstms S C C C S S $$ PRZ002-172000- Roosevelt Roads Naval Airstation-Ceiba PR 18.25N 65.63W Elev. 39 ft 503 AM AST Wed Jul 17 2024 Date Wed 07/17/24 Thu 07/18/24 Fri 07/19/24 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 91 83 91 82 91 Temp 87 90 91 89 86 84 83 84 88 90 91 89 85 84 82 83 87 90 91 88 84 Dewpt 77 79 78 79 78 78 78 77 78 79 78 78 78 78 77 77 77 79 78 78 77 RH 72 70 66 73 77 82 85 80 72 70 66 70 80 82 85 82 72 70 66 72 80 Wind dir E E E E E E E E E E E E E E E E E E E E E Wind spd 12 14 13 13 11 13 16 16 16 17 17 14 13 16 16 17 18 18 17 16 16 Clouds B2 B2 B1 B1 OV OV B2 B1 B1 B1 B1 B1 B2 B2 B2 B2 B2 B2 B2 B2 OV PoP 12hr 70 60 70 70 60 QPF 12hr 0.59 0.24 0.20 0.11 0.31 Rain shwrs L L L C L L L C C C C C L L L L L L C C L Tstms S S S S S S S S S S S S S S S S S S S S S Heat index 99106106104 98 96 93 94101106106103 97 94 91 92100106106102 94 Max heat 99 107 106 97 101 106 106 96 100 107 106 Heat Y Y Date Sat 07/20/24 Sun 07/21/24 Mon 07/22/24 Tue 07/23/24 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 80 90 83 91 81 89 80 91 Temp 80 86 90 85 83 88 91 84 81 86 89 83 80 87 91 84 Dewpt 77 78 79 78 77 78 77 76 76 77 77 76 75 77 77 76 PWind dir E E E E E E E E Wind char BZ BZ GN GN GN GN GN GN Avg clouds OV OV OV B2 OV B2 SC SC B1 SC SC SC SC SC SC B1 PoP 12hr 80 80 70 30 40 40 30 50 Rain shwrs L D D L L L S C C C C C C C C C Tstms S C C S S S $$ PRZ007-172000- Mercedita Airport-Ponce PR 18.02N 66.56W Elev. 26 ft 503 AM AST Wed Jul 17 2024 Date Wed 07/17/24 Thu 07/18/24 Fri 07/19/24 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 93 77 92 76 92 Temp 87 92 93 89 82 80 78 79 86 91 92 88 81 79 77 78 86 91 92 88 81 Dewpt 73 73 72 71 74 73 73 73 73 72 72 70 71 72 72 72 71 70 71 72 72 RH 63 54 51 56 77 79 85 82 65 54 52 55 72 79 85 82 61 50 51 59 74 Wind dir E E SE E E E NE E E E E E E E NE NE E E E E E Wind spd 6 16 14 13 9 6 6 8 9 17 16 13 6 6 5 6 9 16 16 14 9 Wind gust 26 25 28 26 27 27 Clouds SC SC SC SC FW FW SC FW SC SC SC SC SC SC SC SC SC SC B1 B1 B1 PoP 12hr 40 10 20 10 20 QPF 12hr 0.33 0.02 0.07 0 0.10 Rain shwrs S S C C S S S S S S S S S S S S S S S S Tstms S S Obvis H H H H H H H H H H H H H H H H H Heat index 94101101 95 89 84 93 99100 93 86 91 97 99 94 85 Max heat 94 102 100 87 93 100 98 84 91 99 98 Date Sat 07/20/24 Sun 07/21/24 Mon 07/22/24 Tue 07/23/24 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 75 92 76 92 75 91 75 92 Temp 76 85 92 81 77 86 92 81 76 85 91 80 76 85 92 81 Dewpt 73 73 73 73 71 70 74 70 69 69 70 71 71 71 69 72 PWind dir E E E E NE E E E Wind char GN GN LT GN LT GN GN GN Avg clouds B1 B1 B2 B1 FW FW SC SC FW FW FW SC FW FW FW SC PoP 12hr 20 50 5 30 5 30 5 20 Rain shwrs S S C C C C S C C S S S Tstms S S $$ PRZ008-172000- Rafael Hernandez Airport-Aguadilla PR 18.50N 67.13W Elev. 237 ft 503 AM AST Wed Jul 17 2024 Date Wed 07/17/24 Thu 07/18/24 Fri 07/19/24 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 89 78 90 77 88 Temp 84 88 89 86 82 80 78 80 85 89 90 87 81 79 78 78 84 87 88 85 80 Dewpt 74 76 76 76 76 77 77 77 76 76 77 76 76 78 78 77 76 76 76 75 75 RH 72 68 66 72 82 91 97 91 75 66 66 70 85 97100 97 77 70 68 72 85 Wind dir E E E E E E E E E E E E E E E E E E E E E Wind spd 9 6 11 11 9 12 12 13 14 16 20 20 24 18 16 16 18 19 25 23 14 Clouds SC SC B1 B1 FW CL CL CL SC FW SC B1 SC SC SC SC FW FW B1 B1 SC PoP 12hr 60 5 30 10 50 QPF 12hr 1.10 0.01 0.07 0 0.26 Rain shwrs L L S S S C C S S C C Tstms S S S S S Obvis H H H H H H H H H H H H H Heat index 92 99101 96 89 85 85 95101103 97 88 84 92 98 99 93 85 Max heat 92 101 100 88 95 103 102 87 92 99 98 Heat Y Y Date Sat 07/20/24 Sun 07/21/24 Mon 07/22/24 Tue 07/23/24 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 76 89 77 88 76 88 76 88 Temp 76 84 89 81 77 84 88 80 76 83 88 80 76 83 88 80 Dewpt 76 75 77 76 77 75 76 74 76 74 76 75 75 74 76 75 PWind dir E E E E E E E E Wind char GN BZ GN BZ BZ BZ GN BZ Avg clouds SC SC B1 B1 FW FW FW SC SC FW FW FW FW FW FW SC PoP 12hr 0 70 5 10 10 10 0 50 Rain shwrs L L S S S S S S S C C Tstms S S $$ PRZ010-172000- Eugenio Maria de Hosto Airport-Mayaguez PR 18.27N 67.15W Elev. 28 ft 503 AM AST Wed Jul 17 2024 Date Wed 07/17/24 Thu 07/18/24 Fri 07/19/24 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 92 77 93 76 91 Temp 85 91 92 88 82 80 78 79 87 92 93 89 82 79 77 78 85 90 91 87 80 Dewpt 77 80 79 77 78 77 76 76 78 80 80 79 78 77 76 75 78 79 79 77 77 RH 77 70 66 70 88 91 94 91 75 68 66 73 88 94 97 91 80 70 68 72 91 Wind dir E SE E SE E E E E E E W E E E E E E E E E E Wind spd 4 4 4 2 6 6 4 5 4 3 3 3 9 9 6 8 6 3 8 4 8 Clouds SC SC B1 B1 CL CL CL CL FW FW OV OV SC SC SC SC SC SC B2 B2 SC PoP 12hr 50 0 90 0 80 QPF 12hr 0.50 0 1.03 0 0.93 Rain shwrs C C D D D D Tstms S S C S C C Obvis H H H H H H H H H H H H H Heat index 96108109101 91 85 83 99111112104 91 97106108 99 87 Max heat 96 110 107 89 99 113 111 89 97 108 106 Excess Heat W W Date Sat 07/20/24 Sun 07/21/24 Mon 07/22/24 Tue 07/23/24 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 75 92 76 91 75 91 75 91 Temp 76 85 92 81 77 85 91 80 76 85 91 80 76 85 91 80 Dewpt 75 78 80 79 76 78 79 76 75 77 78 77 75 76 79 77 PWind dir E E E E E E E E Wind char LT LT LT LT GN LT LT LT Avg clouds SC SC B1 B1 FW FW FW SC FW FW FW SC FW FW FW SC PoP 12hr 0 80 5 30 5 40 0 50 Rain shwrs D D C C C C C C Tstms C C $$ VIZ001-172000- CYRIL E. King Airport-St Thomas USVI 18.33N 64.97W Elev. 23 ft 503 AM AST Wed Jul 17 2024 Date Wed 07/17/24 Thu 07/18/24 Fri 07/19/24 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 90 82 92 81 91 Temp 86 89 90 88 85 83 82 83 88 91 92 89 85 83 81 82 87 90 91 88 84 Dewpt 77 78 78 79 78 79 78 78 78 78 77 79 78 78 78 77 77 78 78 78 78 RH 75 70 68 75 80 88 88 85 72 66 62 73 80 85 91 85 72 68 66 72 82 Wind dir E E E E E E E E E E E E E E E E E E E E E Wind spd 18 18 18 17 18 20 21 23 21 21 21 20 21 23 23 24 24 23 21 21 21 Clouds SC SC SC SC B1 B1 B1 SC SC SC SC SC B1 B1 B1 B1 SC SC B1 B1 B2 PoP 12hr 40 40 60 60 60 QPF 12hr 0.34 0.12 0.12 0.08 0.23 Rain shwrs C C C C C C C C S S C C L L L L C C C C L Tstms S S S S S S S S S S S Obvis H H Heat index 98104105103 96 95 92 94101106106104 96 93 90 91 99104106102 94 Max heat 98 105 105 96 101 106 106 95 99 106 105 Heat Y Y Date Sat 07/20/24 Sun 07/21/24 Mon 07/22/24 Tue 07/23/24 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 80 91 81 92 80 90 81 90 Temp 80 87 91 84 81 88 92 84 80 86 90 84 81 86 90 83 Dewpt 78 79 78 79 78 78 77 76 76 77 77 77 76 76 76 77 PWind dir E E E NE E E E E Wind char BZ BZ BZ BZ BZ BZ BZ BZ Avg clouds B2 B2 B2 B1 SC SC SC SC SC SC SC SC SC SC SC SC PoP 12hr 60 40 30 30 30 30 30 50 Rain shwrs L L C C S C C C C C C C C C S C Tstms S S S $$ VIZ002-172000- Henry E. Rohlsen Airport-St Croix USVI 17.70N 64.80W Elev. 74 ft 503 AM AST Wed Jul 17 2024 Date Wed 07/17/24 Thu 07/18/24 Fri 07/19/24 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 81 92 80 91 Temp 87 90 91 89 84 83 81 82 88 91 92 89 84 82 80 81 87 90 91 89 84 Dewpt 78 78 78 78 78 78 78 78 78 78 78 78 78 78 77 77 78 78 78 78 78 RH 75 68 66 70 82 85 91 88 72 66 64 70 82 88 91 88 75 68 66 70 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 18 17 17 16 14 18 18 20 20 20 19 18 19 20 20 19 20 20 19 19 17 Clouds SC SC SC SC B1 B1 B1 SC SC SC SC B1 B1 B1 B1 B1 B1 B1 SC SC B2 PoP 12hr 30 40 60 60 60 QPF 12hr 0.28 0.12 0.14 0.09 0.24 Rain shwrs S S C C S S C C S S C C L L L L C C C C L Tstms S S S S S S S S S S S S Obvis H H H H Heat index 99105106103 96 93 90 92101107107103 95 91 88 89 99105106102 95 Max heat 99 106 106 95 101 107 106 93 99 106 105 Heat Y Y Date Sat 07/20/24 Sun 07/21/24 Mon 07/22/24 Tue 07/23/24 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 81 90 80 92 78 90 79 91 Temp 81 86 90 83 80 87 92 83 79 85 90 83 79 86 91 84 Dewpt 78 79 79 78 78 78 77 76 75 77 77 76 76 77 76 77 PWind dir E E E NE E E E E Wind char BZ BZ BZ BZ BZ GN BZ BZ Avg clouds B2 B2 B2 B1 SC SC SC SC SC SC SC SC SC SC SC SC PoP 12hr 60 50 20 20 30 30 30 50 Rain shwrs L L C C S S S S S C C C C C S C Tstms S S S $$