Point Forecast Matrices
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
443 FOCA52 TJSJ 152129 PFMSJU Point Forecast Matrices National Weather Service San Juan PR 529 PM AST Fri Aug 15 2025 PRZ001-161000- Luis Munoz Marin International Airport-San Juan 18.43N 66.00W Elev. 9 ft 529 PM AST Fri Aug 15 2025 Date 08/15/25 Sat 08/16/25 Sun 08/17/25 Mon 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 87 79 90 80 Temp 87 82 80 79 79 84 86 87 85 82 81 79 80 86 89 90 87 83 81 80 80 87 Dewpt 75 75 75 76 75 76 77 77 77 77 76 76 75 75 77 76 76 76 75 76 75 76 RH 68 79 85 91 88 77 75 72 77 85 85 91 85 70 68 64 70 80 82 88 85 70 Wind dir NE NE N N N W NW NW W W W SW S S S S S S S S S S Wind spd 10 8 8 6 2 4 8 6 9 9 9 8 6 11 17 17 14 9 8 6 10 8 Clouds CL CL FW OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV B2 PoP 12hr 80 80 90 90 80 QPF 12hr 0.20 0.56 0.74 0.65 0.26 Rain shwrs L L D D D D D D D D D D D D D D D D C Tstms S S S S S S S S S S S S S S S S S S Heat index 96 89 85 93 97 99 96 90 87 85 95102102 98 91 87 86 85 98 Max heat 99 89 93 99 99 88 95 103 100 89 98 Flood A A A A A A A A A A A A A A A A A A A High Surf Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Date 08/18 Tue 08/19/25 Wed 08/20/25 Thu 08/21/25 Fri 08/22/25 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 79 93 79 92 79 92 79 91 Temp 92 83 80 88 93 84 80 87 92 83 80 87 92 83 80 86 91 83 Dewpt 76 75 76 76 76 75 76 76 76 76 75 75 76 76 75 76 77 76 PWind dir S SE SE SE E E E E E Wind char GN LT GN LT GN LT GN GN GN Avg clouds B2 B2 B2 B2 B2 B1 SC SC SC SC SC B1 B1 B1 FW SC SC B1 PoP 12hr 70 50 60 20 30 40 60 10 60 Rain shwrs L L C C L L S S C C C C L L S S C L Tstms S S S S S S S $$ PRZ002-161000- Roosevelt Roads Naval Airstation-Ceiba PR 18.25N 65.63W Elev. 39 ft 529 PM AST Fri Aug 15 2025 Date 08/15/25 Sat 08/16/25 Sun 08/17/25 Mon AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 79 87 79 89 81 Temp 86 82 81 80 80 84 87 87 85 82 81 79 80 85 88 89 87 84 83 81 82 87 Dewpt 76 75 76 76 76 77 78 77 78 77 77 76 77 78 79 77 78 77 77 77 77 78 RH 72 79 85 88 88 80 75 72 80 85 88 91 91 80 75 68 75 80 82 88 85 75 Wind dir NE N N N N NW N W SW SW SW SW SW S S S S S S S S S Wind spd 10 9 9 8 5 8 6 5 5 5 8 12 16 18 19 18 16 12 12 12 12 14 Clouds SC CL SC B2 OV OV B2 OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV PoP 12hr 80 90 90 90 80 QPF 12hr 0.20 0.56 0.74 0.65 0.35 Rain shwrs S S L L D L D D D D D D D D D D D D D D L Tstms S S S S S S S S S S S S S S S S S S S Heat index 96 89 87 86 86 94100 99 97 90 88 87 97103102100 94 92 88 90 99 Max heat 99 89 94 100 99 88 97 103 102 92 99 Flood A A A A A A A A A A A A A A A A A A A High Surf Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Date 08/18 Tue 08/19/25 Wed 08/20/25 Thu 08/21/25 Fri 08/22/25 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 90 81 90 81 90 81 90 80 89 Temp 90 84 82 87 90 84 82 87 90 84 82 87 90 83 81 86 89 82 Dewpt 77 77 77 77 77 77 77 77 77 77 76 76 77 76 76 77 77 76 PWind dir S S SE SE SE E E E E Wind char GN GN GN LT GN GN GN GN GN Avg clouds OV B2 B2 B2 B2 B1 SC B1 B1 B1 B2 B2 B1 B1 B2 B1 SC SC PoP 12hr 70 60 60 50 50 50 50 50 60 Rain shwrs L L L L L C C C C C C C C C C C C L Tstms S S S S S S $$ PRZ007-161000- Mercedita Airport-Ponce PR 18.02N 66.56W Elev. 26 ft 529 PM AST Fri Aug 15 2025 Date 08/15/25 Sat 08/16/25 Sun 08/17/25 Mon 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 89 77 85 77 Temp 85 80 78 76 76 84 88 89 85 81 79 78 78 82 85 85 82 79 78 77 77 83 Dewpt 72 72 71 70 71 71 71 73 74 73 72 71 71 73 74 74 74 74 74 73 74 77 RH 65 77 79 82 85 65 57 59 70 77 79 79 79 74 70 70 77 85 88 87 90 82 Wind dir NE N N N N N SW SW W W W W W SW SW SW SW S S S S S Wind spd 5 4 5 3 4 3 5 3 3 4 2 1 3 4 14 14 11 8 5 5 5 8 Wind gust 25 Clouds B2 B1 CL SC B1 FW FW OV OV B2 B2 B2 B2 OV OV OV OV OV OV OV OV OV PoP 12hr 40 70 90 90 80 QPF 12hr 0.10 0.44 0.74 0.65 0.35 Rain shwrs L C C S S L L L L L L D D D D D D D D L Tstms S S S S S S S S S S S S S S S S Heat index 91 84 89 94 97 93 86 87 93 93 88 92 Max heat 95 89 97 97 84 87 93 93 92 Flood A A A A A A A A A A A A A A A A A A A Date 08/18 Tue 08/19/25 Wed 08/20/25 Thu 08/21/25 Fri 08/22/25 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 87 77 88 77 89 77 90 77 89 Temp 87 80 78 84 88 81 78 84 89 81 78 85 90 81 78 84 89 81 Dewpt 79 77 75 77 79 77 75 76 79 77 74 75 77 76 73 75 79 77 PWind dir S SE SE E E E E NE E Wind char GN LT LT LT LT LT GN LT LT Avg clouds B2 B2 B2 B2 B2 SC SC SC SC SC SC SC SC B1 SC SC SC SC PoP 12hr 70 60 60 10 20 10 40 20 20 Rain shwrs L L L L L C S S S S S S C C S S S S Tstms S S S S S $$ PRZ008-161000- Rafael Hernandez Airport-Aguadilla PR 18.50N 67.13W Elev. 237 ft 529 PM AST Fri Aug 15 2025 Date 08/15/25 Sat 08/16/25 Sun 08/17/25 Mon AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 77 88 77 86 77 Temp 85 81 79 78 78 84 87 88 85 81 79 78 78 83 85 86 83 80 79 78 78 84 Dewpt 74 74 75 75 75 76 76 76 75 76 76 77 75 76 77 77 75 76 76 76 75 75 RH 70 79 88 91 91 77 70 68 72 85 91 97 91 80 77 75 77 88 91 94 91 74 Wind dir NE NE NE NE NE NE N N N NW W W SW SW SW SW SW S S S S S Wind spd 14 13 12 11 8 8 9 11 5 4 6 8 10 11 16 20 19 16 17 17 13 14 Clouds CL CL SC B1 B2 OV OV OV OV OV OV B2 B2 SC SC B2 B2 SC SC SC SC SC PoP 12hr 70 80 80 60 50 QPF 12hr 0.17 0.54 0.41 0.31 0.12 Rain shwrs S C L L D D D D D L L L L L L C C C C S Tstms S S S S S S S S S S S S S Heat index 93 86 93 98 99 94 87 91 96 97 90 86 92 Max heat 94 84 93 99 96 86 91 97 96 92 Flood A A A A A A A A A A A A A A A A A A A High Surf Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Date 08/18 Tue 08/19/25 Wed 08/20/25 Thu 08/21/25 Fri 08/22/25 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 88 77 89 76 89 76 89 77 88 Temp 88 81 78 84 89 80 77 84 89 80 77 84 89 81 78 84 88 81 Dewpt 76 75 76 76 76 75 75 75 76 77 75 75 76 76 75 75 76 76 PWind dir S S SE SE E E E E E Wind char BZ GN GN LT LT LT BZ BZ GN Avg clouds B1 B2 SC SC SC B1 FW FW SC B1 FW FW SC B1 FW FW SC SC PoP 12hr 70 10 60 5 60 5 60 5 40 Rain shwrs L L S S L L L L L L C C Tstms S S S S S S S S $$ PRZ010-161000- Eugenio Maria de Hosto Airport-Mayaguez PR 18.27N 67.15W Elev. 28 ft 529 PM AST Fri Aug 15 2025 Date 08/15/25 Sat 08/16/25 Sun 08/17/25 Mon 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 74 90 76 90 77 Temp 86 80 77 75 76 84 89 90 86 81 79 77 77 85 89 90 86 81 79 77 77 86 Dewpt 76 76 74 74 75 76 78 78 77 77 77 76 76 77 79 79 77 77 76 76 75 77 RH 72 88 90 97 97 77 70 68 75 88 94 97 97 77 73 70 75 88 91 97 94 75 Wind dir NE NE NE NE NE NE N N N N NW W SW SW SW SW S S S S S S Wind spd 3 11 9 8 8 6 10 11 8 3 4 3 4 8 11 17 16 12 12 12 12 12 Clouds OV SC CL SC SC SC SC OV OV OV OV B2 B2 B2 B2 B2 B2 SC SC SC SC B1 PoP 12hr 30 70 70 60 50 QPF 12hr 0.15 0.27 0.41 0.31 0.13 Rain shwrs L C S C C C L L L L L L L L L L C C C C C Tstms S S S S S S S S S S S S Heat index 96 86 93103105 97 88 96105106 97 88 97 Max heat 102 93 105 103 87 96 106 103 87 97 Flood A A A A A A A A A A A A A A A A A A A Date 08/18 Tue 08/19/25 Wed 08/20/25 Thu 08/21/25 Fri 08/22/25 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 76 93 75 93 75 93 75 92 Temp 91 81 77 87 93 81 76 86 93 81 76 86 93 81 76 86 92 81 Dewpt 79 77 76 77 78 76 75 76 78 77 75 75 77 76 75 76 78 76 PWind dir S SE SE SE SE E E E E Wind char GN GN GN GN GN LT LT GN LT Avg clouds B1 B1 SC SC SC B1 FW FW SC B1 FW FW SC B1 FW FW SC B1 PoP 12hr 60 20 50 5 60 5 60 5 60 Rain shwrs L L S S C C L L L L L L Tstms S S S S S S S S $$ VIZ001-161000- CYRIL E. King Airport-St Thomas USVI 18.33N 64.97W Elev. 23 ft 529 PM AST Fri Aug 15 2025 Date 08/15/25 Sat 08/16/25 Sun 08/17/25 Mon AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 81 89 81 91 82 Temp 89 85 83 82 82 86 89 89 87 84 83 81 82 87 90 91 88 85 84 83 83 88 Dewpt 76 76 77 77 77 78 78 77 78 78 77 78 77 78 78 77 78 78 78 78 78 78 RH 66 75 82 85 85 77 70 68 75 82 82 91 85 75 68 64 72 80 82 85 85 72 Wind dir NE N N N N N NW W W SW SW SW S S S S S S S S S S Wind spd 11 13 13 13 9 9 9 16 17 17 20 23 24 27 23 21 20 20 18 18 18 19 Clouds SC CL B2 OV B2 OV SC OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV PoP 12hr 80 90 90 90 80 QPF 12hr 0.23 0.53 0.83 0.65 0.35 Rain shwrs S C L L D C D D D D D D D D D D D D D D L Tstms S S S S S S S S S S S S S S S S S S S Heat index 100 94 92 90 90 98103102100 95 92 89 90100105105102 97 95 93 93102 Max heat 101 93 98 103 102 92 100 106 105 95 102 Flood A A A A A A A A A A A A A A A A A A A High Surf Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Date 08/18 Tue 08/19/25 Wed 08/20/25 Thu 08/21/25 Fri 08/22/25 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 92 82 92 81 92 82 92 82 92 Temp 92 85 83 88 92 85 82 88 92 85 83 88 92 85 83 88 92 85 Dewpt 77 78 78 77 76 77 77 77 76 77 77 76 76 76 77 77 76 77 PWind dir S SE SE E E E E E SE Wind char BZ BZ GN GN GN GN BZ BZ BZ Avg clouds B2 B2 B2 B2 B1 B1 B2 B1 SC SC B2 B2 B1 B1 B2 B1 SC SC PoP 12hr 70 60 50 50 50 50 50 50 60 Rain shwrs L L L L C C C C C C C C C C C C C L Tstms S S S S S $$ VIZ002-161000- Henry E. Rohlsen Airport-St Croix USVI 17.70N 64.80W Elev. 74 ft 529 PM AST Fri Aug 15 2025 Date 08/15/25 Sat 08/16/25 Sun 08/17/25 Mon 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 86 78 90 79 Temp 86 81 79 78 78 83 85 86 84 81 80 78 79 85 89 90 87 83 81 80 80 86 Dewpt 74 75 76 76 76 77 77 77 77 76 77 76 76 78 77 77 77 77 77 77 77 78 RH 68 82 91 94 94 82 77 75 80 85 91 94 91 80 68 66 72 82 88 91 91 77 Wind dir NE N N N N NW W W W SW SW SW S S S S S S S S S S Wind spd 11 10 11 9 11 11 11 13 12 17 17 18 20 19 19 18 17 16 13 14 14 16 Clouds SC FW B1 B2 OV B2 SC OV OV OV OV OV OV OV OV OV OV OV OV OV OV B2 PoP 12hr 70 90 90 90 80 QPF 12hr 0.23 0.51 0.83 0.65 0.27 Rain shwrs S C L L L C D D D D D D D D D D D D D D L Tstms S S S S S S S S S S S S S S S S S S S Heat index 94 87 92 96 97 94 87 87 97102103 99 92 88 87 87 98 Max heat 97 87 92 97 96 87 97 103 102 90 98 Flood A A A A A A A A A A A A A A A A A A A High Surf Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Date 08/18 Tue 08/19/25 Wed 08/20/25 Thu 08/21/25 Fri 08/22/25 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 78 89 Temp 90 83 80 86 90 83 80 86 90 82 79 85 90 82 79 85 89 82 Dewpt 77 77 76 77 77 76 76 77 77 76 76 76 76 76 76 77 77 76 PWind dir S SE SE E E E E E SE Wind char BZ GN GN GN GN GN BZ BZ BZ Avg clouds B2 B2 B2 B2 B1 B1 B2 B1 SC SC B2 B1 B1 SC SC SC SC SC PoP 12hr 60 60 50 50 50 50 40 30 40 Rain shwrs L L L L C C C C C C C C C C C C S C Tstms S S S S $$