Point Forecast Matrices
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
556 FOCA52 TJSJ 182103 PFMSJU Point Forecast Matrices National Weather Service San Juan PR 503 PM AST Fri Apr 18 2025 PRZ001-190800- Luis Munoz Marin International Airport-San Juan 18.43N 66.00W Elev. 9 ft 503 PM AST Fri Apr 18 2025 Date 04/18/25 Sat 04/19/25 Sun 04/20/25 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 76 85 74 87 72 Temp 80 78 77 77 81 84 85 82 78 76 75 75 81 86 87 83 77 75 73 73 80 Dewpt 73 73 72 72 72 73 74 72 72 72 71 71 71 71 71 71 70 70 69 68 68 RH 79 85 85 85 74 70 70 72 82 87 87 87 72 61 59 67 79 84 87 84 67 Wind dir NE NE NE NE E E E NE NE NE NE NE NE NE NE NE NE NE N N N Wind spd 5 4 4 4 6 9 9 9 6 9 5 8 11 13 14 14 12 13 11 10 12 Clouds B2 B2 OV B2 B2 B2 B2 B2 B2 B2 OV OV B1 B1 SC SC FW FW FW FW SC PoP 12hr 70 60 70 40 30 QPF 12hr 0.55 0.34 0.61 0.47 0.03 Rain shwrs L C L L L C L C C C L L C C S S S S S S C Tstms S S S S S S S S S S Heat index 84 85 90 92 87 85 91 93 87 82 Max heat 90 83 85 92 91 85 93 92 82 Date 04/21 Tue 04/22/25 Wed 04/23/25 Thu 04/24/25 Fri 04/25/25 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 86 73 86 74 85 74 86 74 88 Temp 86 78 74 80 86 78 75 80 85 78 75 81 86 78 75 82 88 79 Dewpt 67 68 68 69 70 69 70 70 72 72 71 72 73 72 72 72 73 72 PWind dir N N NE E E E E E E Wind char GN LT GN LT GN LT GN LT GN Avg clouds SC SC SC SC SC FW SC SC SC SC SC SC SC SC FW SC SC SC PoP 12hr 50 30 20 30 30 20 30 40 40 Rain shwrs C C C C S S S C C S S S C C S C C S $$ PRZ002-190800- Roosevelt Roads Naval Airstation-Ceiba PR 18.25N 65.63W Elev. 39 ft 503 PM AST Fri Apr 18 2025 Date 04/18/25 Sat 04/19/25 Sun 04/20/25 Mon AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 75 86 75 87 72 Temp 79 77 76 76 81 85 86 83 79 77 76 76 82 86 87 83 77 75 73 73 79 Dewpt 73 72 72 73 73 73 73 73 73 72 71 71 72 72 72 71 71 70 69 69 69 RH 82 85 87 90 77 67 65 72 82 85 85 85 72 63 61 67 82 84 87 87 72 Wind dir N N NE NE NE E E NE NE NE NE NE NE NE NE NE N N N N N Wind spd 5 6 6 6 5 6 8 8 6 9 6 6 10 11 12 13 13 14 13 12 10 Clouds B2 B2 OV OV OV B2 B2 B2 B2 B2 OV OV B1 B1 FW FW SC SC SC SC SC PoP 12hr 70 70 70 40 30 QPF 12hr 0.58 0.39 0.60 0.42 0.04 Rain shwrs L L L L L L L L C L L L C C S S S S S S C Tstms S S S S S S S S S S S Heat index 86 91 93 89 86 91 93 87 82 Max heat 89 86 93 93 86 93 92 82 Date 04/21 Tue 04/22/25 Wed 04/23/25 Thu 04/24/25 Fri 04/25/25 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 85 69 86 74 87 75 87 74 89 Temp 85 75 70 79 86 78 75 81 87 79 76 82 87 79 75 82 89 79 Dewpt 68 67 68 69 70 69 70 71 71 72 71 72 72 72 72 73 73 72 PWind dir N N NE NE E E E E E Wind char GN GN GN LT LT LT GN LT GN Avg clouds SC FW SC SC SC SC SC SC SC SC SC SC SC SC FW SC SC SC PoP 12hr 30 20 30 30 30 30 30 50 50 Rain shwrs C S S S S C C C C C C C C C S C C C $$ PRZ007-190800- Mercedita Airport-Ponce PR 18.02N 66.56W Elev. 26 ft 503 PM AST Fri Apr 18 2025 Date 04/18/25 Sat 04/19/25 Sun 04/20/25 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 88 72 89 70 Temp 80 78 76 76 82 87 88 84 78 75 73 73 82 87 89 84 77 74 71 71 80 Dewpt 70 69 68 68 68 69 71 70 69 69 68 68 68 68 67 67 66 64 63 61 60 RH 72 74 76 76 63 55 57 63 74 82 84 84 63 53 48 57 69 71 76 71 51 Wind dir N NE NE NE NE E E NE NE NE NE NE NE NE NE NE NE N N N N Wind spd 4 5 5 4 4 9 9 1 3 6 4 6 5 11 14 13 9 9 6 4 6 Clouds B2 B1 SC SC SC SC B2 B2 SC SC FW FW CL CL SC SC CL CL CL CL CL PoP 12hr 50 60 5 40 5 QPF 12hr 0.30 0.27 0.04 0.68 0 Rain shwrs C C C C C C L C S S C C Tstms S S Heat index 83 85 91 94 88 84 91 92 86 81 Max heat 89 82 85 94 93 84 92 91 81 Date 04/21 Tue 04/22/25 Wed 04/23/25 Thu 04/24/25 Fri 04/25/25 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 71 88 72 87 72 88 72 90 Temp 88 77 72 81 88 78 73 80 87 77 73 81 88 78 73 82 90 78 Dewpt 60 60 62 65 66 67 65 64 64 66 63 60 64 67 65 64 69 70 PWind dir N N E NE E NE E NE E Wind char GN LT LT LT LT LT GN LT LT Avg clouds SC B1 CL CL FW FW CL CL FW FW CL CL FW FW CL FW SC FW PoP 12hr 70 5 20 0 5 0 20 20 20 Rain shwrs L L S S S S S S S S S $$ PRZ008-190800- Rafael Hernandez Airport-Aguadilla PR 18.50N 67.13W Elev. 237 ft 503 PM AST Fri Apr 18 2025 Date 04/18/25 Sat 04/19/25 Sun 04/20/25 Mon AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 74 83 72 84 69 Temp 77 76 74 74 79 82 83 80 76 74 73 73 79 83 84 80 74 72 70 70 76 Dewpt 72 73 73 73 71 72 72 72 71 72 72 71 69 70 70 70 69 70 69 67 65 RH 85 90 97 97 77 72 70 77 85 93 97 93 72 65 63 72 84 93 97 90 69 Wind dir NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE N Wind spd 14 13 13 14 16 16 16 17 17 18 16 17 19 21 21 20 19 20 18 14 18 Clouds B1 B1 SC SC SC SC B2 B2 SC SC FW SC SC SC FW FW FW FW FW FW SC PoP 12hr 40 50 10 10 20 QPF 12hr 0.21 0.19 0.08 0.14 0.01 Rain shwrs C C S S S S C C S S S S S S S S S S S S S Tstms S S Heat index 82 87 88 84 86 88 83 Max heat 85 82 88 88 88 88 Date 04/21 Tue 04/22/25 Wed 04/23/25 Thu 04/24/25 Fri 04/25/25 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 82 70 83 72 83 72 83 72 85 Temp 82 74 71 77 83 76 73 78 83 76 73 78 83 76 73 79 85 77 Dewpt 66 66 69 67 69 69 70 68 70 71 72 70 72 71 72 71 72 71 PWind dir N NE NE E NE E E E E Wind char BZ GN GN GN GN GN GN LT LT Avg clouds SC FW SC SC SC SC FW FW FW SC SC SC FW FW CL FW FW FW PoP 12hr 20 20 20 5 50 30 20 10 10 Rain shwrs S S S S S S S S C C C C S S S S S $$ PRZ010-190800- Eugenio Maria de Hosto Airport-Mayaguez PR 18.27N 67.15W Elev. 28 ft 503 PM AST Fri Apr 18 2025 Date 04/18/25 Sat 04/19/25 Sun 04/20/25 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 73 89 69 89 67 Temp 79 76 74 74 82 87 89 83 76 73 70 70 80 87 89 83 75 71 68 68 79 Dewpt 75 73 72 72 74 76 77 76 73 72 70 70 72 74 74 74 71 70 68 67 68 RH 88 90 93 93 77 70 68 80 90 97100100 77 65 61 74 87 97100 97 69 Wind dir NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE N Wind spd 12 11 10 10 11 8 10 14 12 13 11 11 16 19 19 19 18 19 17 13 17 Clouds B2 B1 SC SC FW FW B2 B2 FW FW FW CL FW FW SC SC CL CL CL CL FW PoP 12hr 50 60 5 30 10 QPF 12hr 0.22 0.32 0.02 0.41 0 Rain shwrs C C S S S S L L C C S Tstms S S Heat index 88 98102 92 84 95 98 89 Max heat 94 88 102 101 84 98 97 Date 04/21 Tue 04/22/25 Wed 04/23/25 Thu 04/24/25 Fri 04/25/25 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 68 88 69 88 70 88 70 90 Temp 88 75 69 79 88 76 70 80 88 76 71 80 88 76 71 81 90 77 Dewpt 70 67 68 70 73 71 69 71 74 73 71 72 76 73 71 73 76 74 PWind dir N NE NE NE N E NE E NE Wind char BZ GN GN GN LT LT LT LT LT Avg clouds SC SC CL FW SC SC CL CL SC B2 SC SC FW SC CL FW SC B1 PoP 12hr 40 10 50 0 70 30 50 10 60 Rain shwrs C C S C C L L C C C C S L L $$ VIZ001-190800- CYRIL E. King Airport-St Thomas USVI 18.33N 64.97W Elev. 23 ft 503 PM AST Fri Apr 18 2025 Date 04/18/25 Sat 04/19/25 Sun 04/20/25 Mon AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 76 87 76 90 75 Temp 79 78 77 77 82 86 87 84 80 78 77 77 84 88 90 86 80 78 76 76 82 Dewpt 73 73 73 73 74 73 74 73 73 72 72 71 72 72 72 71 71 70 70 70 70 RH 82 85 87 87 77 65 65 70 79 82 85 82 67 59 56 61 74 76 82 82 67 Wind dir NE NE NE NE E E E NE NE NE NE NE NE NE NE NE NE NE N N N Wind spd 6 10 10 10 11 10 9 9 10 13 12 11 13 13 14 16 19 19 18 17 14 Clouds B2 B2 B2 B2 B2 B2 B2 B2 SC SC SC SC B1 B1 SC SC SC SC SC SC SC PoP 12hr 60 60 40 40 30 QPF 12hr 0.50 0.32 0.35 0.50 0.04 Rain shwrs C L C L L L C C C C S S C C S S S S S S C Tstms S S S S S S Heat index 83 88 93 95 90 84 89 95 97 91 84 86 Max heat 88 88 95 95 83 89 97 96 83 86 Date 04/21 Tue 04/22/25 Wed 04/23/25 Thu 04/24/25 Fri 04/25/25 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 88 74 89 76 85 76 86 77 88 Temp 88 79 75 82 89 81 77 81 85 79 77 82 86 80 78 83 88 81 Dewpt 69 68 69 69 70 70 71 71 71 72 72 72 73 73 73 73 73 73 PWind dir N N NE NE E E E E E Wind char BZ GN GN GN LT GN GN GN BZ Avg clouds SC FW FW FW FW SC SC SC SC SC SC SC SC SC SC SC SC SC PoP 12hr 30 10 30 30 30 30 30 40 40 Rain shwrs C S S S S C C C C C C C C C C C C S $$ VIZ002-190800- Henry E. Rohlsen Airport-St Croix USVI 17.70N 64.80W Elev. 74 ft 503 PM AST Fri Apr 18 2025 Date 04/18/25 Sat 04/19/25 Sun 04/20/25 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 88 73 87 70 Temp 79 77 76 76 82 87 88 84 78 76 74 74 81 85 87 82 76 73 71 71 79 Dewpt 74 73 73 73 74 74 74 73 73 72 72 72 72 72 72 71 72 71 70 70 70 RH 85 87 90 90 77 65 63 70 85 87 93 93 74 65 61 69 87 93 97 97 74 Wind dir NE E E E E E E NE NE NE NE NE NE NE NE NE NE NE N N N Wind spd 4 5 6 8 11 11 11 10 9 9 11 9 12 11 12 12 13 17 16 13 16 Clouds SC SC SC B2 SC SC B2 B2 B1 SC SC SC CL CL CL CL SC SC SC SC FW PoP 12hr 70 50 40 20 20 QPF 12hr 0.32 0.27 0.21 0.01 0.02 Rain shwrs S C S L C C C C C C C C S S S S S Tstms S S S Heat index 88 95 96 90 85 92 94 87 Max heat 89 88 97 96 85 94 93 Date 04/21 Tue 04/22/25 Wed 04/23/25 Thu 04/24/25 Fri 04/25/25 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 86 70 86 71 86 74 88 74 90 Temp 86 76 71 79 86 76 72 79 86 78 75 82 88 79 75 83 90 80 Dewpt 69 68 68 70 70 70 71 71 72 72 72 73 74 73 73 74 73 73 PWind dir N N NE NE E E E E E Wind char BZ GN GN LT LT LT GN GN GN Avg clouds FW FW FW FW FW FW FW SC SC SC SC SC SC SC SC SC SC SC PoP 12hr 10 10 10 30 30 30 30 40 40 Rain shwrs S S S S S S S C C C C C C C C C C S $$