Point Forecast Matrices Issued by NWS San Juan, PR
000
FOCA52 TJSJ 180903
PFMSJU
Point Forecast Matrices
National Weather Service San Juan PR
503 AM AST Thu Apr 18 2024
PRZ001-182000-
Luis Munoz Marin International Airport-San Juan
18.43N 66.00W Elev. 9 ft
503 AM AST Thu Apr 18 2024
Date Thu 04/18/24 Fri 04/19/24 Sat 04/20/24
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 86 76 85 76 84
Temp 82 85 86 83 80 78 77 77 81 84 85 82 79 78 77 76 80 83 84 81 78
Dewpt 72 73 73 72 72 72 72 71 72 73 74 73 72 72 71 71 71 71 72 71 71
RH 72 67 65 70 77 82 85 82 74 70 70 74 79 82 82 85 74 67 67 72 79
Wind dir NE NE NE NE NE NE NE NE NE NE NE N N N NE NE NE NE NE NE NE
Wind spd 3 6 8 6 5 4 1 1 2 6 8 8 6 5 4 5 9 11 11 11 9
Clouds B1 B1 SC SC SC SC B2 B2 B2 SC B1 B1 B2 B2 B1 B1 B1 B1 B1 B1 B1
PoP 12hr 30 60 60 50 50
QPF 12hr 0.21 0.17 0.22 0.14 0.21
Rain shwrs S C C S S S S C L S C C C C C C C C C C C
Heat index 86 91 93 89 83 85 90 92 88 83 84 88 90 86
Max heat 86 93 92 85 92 92 84 90 89
Date Sun 04/21/24 Mon 04/22/24 Tue 04/23/24 Wed 04/24/24
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 84 75 87 76 87 76 86
Temp 76 80 84 78 76 82 87 80 77 82 87 80 77 82 86 79
Dewpt 71 72 73 73 73 74 76 75 74 74 76 75 74 74 75 73
PWind dir NE NE E E E E E E
Wind char GN GN GN GN LT GN GN GN
Avg clouds B1 B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B1
PoP 12hr 50 60 60 60 60 60 60 60
Rain shwrs C C C L L L C L L L L L L L L C
Tstms S S S S
$$
PRZ002-182000-
Roosevelt Roads Naval Airstation-Ceiba PR
18.25N 65.63W Elev. 39 ft
503 AM AST Thu Apr 18 2024
Date Thu 04/18/24 Fri 04/19/24 Sat 04/20/24
AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00
Max/Min 87 75 86 75 86
Temp 82 86 87 84 79 77 76 76 81 85 86 83 79 77 76 76 81 85 86 83 80
Dewpt 73 73 74 74 73 73 73 72 73 74 74 73 73 73 73 71 73 73 73 73 72
RH 74 65 65 72 82 87 90 87 77 70 68 72 82 87 90 85 77 67 65 72 77
Wind dir NE NE NE NE NE NE NE NE NE NE NE N N N NE NE NE NE NE NE NE
Wind spd 5 8 8 8 6 6 4 4 4 6 8 9 8 8 6 8 10 11 11 11 10
Clouds B1 B1 SC SC SC B1 B2 OV B2 SC SC SC B2 B2 B2 B2 B1 B1 SC SC B2
PoP 12hr 30 60 60 50 50
QPF 12hr 0.26 0.21 0.18 0.14 0.14
Rain shwrs S C C C S S S C L S C S C C C C C C S S C
Heat index 87 93 95 90 83 86 92 94 89 86 91 93 89 83
Max heat 87 95 94 86 94 93 86 93 92
Date Sun 04/21/24 Mon 04/22/24 Tue 04/23/24 Wed 04/24/24
AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
Min/Max 76 87 77 87 77 88 77 88
Temp 77 82 87 81 78 83 87 81 78 83 88 81 78 83 88 81
Dewpt 73 73 74 74 74 75 76 76 75 75 76 76 75 74 75 73
PWind dir NE NE E E E E E E
Wind char GN GN GN GN LT GN GN GN
Avg clouds B2 B2 B1 B2 B2 B2 B1 B1 B2 B2 B2 B2 B2 B2 B2 B2
PoP 12hr 50 60 60 60 60 60 60 60
Rain shwrs C C C L L L C L L L L L L L L C
Tstms S S S S
$$
PRZ007-182000-
Mercedita Airport-Ponce PR
18.02N 66.56W Elev. 26 ft
503 AM AST Thu Apr 18 2024
Date Thu 04/18/24 Fri 04/19/24 Sat 04/20/24
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 87 73 88 73 85
Temp 81 85 87 83 78 76 74 74 81 86 88 84 78 76 74 74 80 84 85 81 76
Dewpt 68 67 69 70 70 69 68 67 67 68 69 69 70 69 68 67 68 67 70 69 69
RH 65 55 55 65 76 79 82 79 63 55 54 61 76 79 82 79 67 57 61 67 79
Wind dir N SE SE NE NE NE N N NE SE S N N N N NE NE NE E NE NE
Wind spd 3 6 8 4 2 4 4 3 3 8 6 1 4 5 5 5 4 10 11 3 8
Clouds SC SC B2 SC FW FW SC FW SC CL B1 SC FW FW FW FW FW FW B2 B2 SC
PoP 12hr 50 20 40 5 50
QPF 12hr 0.36 0.05 0.20 0.01 0.22
Rain shwrs S S C C S S C C C C C
Heat index 84 88 91 87 84 90 92 88 82 86 90 84
Max heat 84 91 91 84 92 92 82 90 89
Date Sun 04/21/24 Mon 04/22/24 Tue 04/23/24 Wed 04/24/24
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 71 86 72 86 74 87 75 87
Temp 72 79 86 77 73 80 86 78 75 81 87 79 76 82 87 77
Dewpt 67 68 70 70 69 69 72 72 70 70 72 72 70 70 72 71
PWind dir NE E NE E E E E E
Wind char LT GN LT GN LT LT LT GN
Avg clouds SC SC FW FW CL CL FW SC FW FW FW FW CL FW SC SC
PoP 12hr 30 10 0 20 5 5 5 30
Rain shwrs C C S S S S C C
$$
PRZ008-182000-
Rafael Hernandez Airport-Aguadilla PR
18.50N 67.13W Elev. 237 ft
503 AM AST Thu Apr 18 2024
Date Thu 04/18/24 Fri 04/19/24 Sat 04/20/24
AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00
Max/Min 83 73 83 75 82
Temp 79 82 83 80 77 75 74 74 79 82 83 81 78 77 75 75 79 81 82 79 76
Dewpt 71 70 71 71 71 72 72 72 70 71 71 71 70 72 72 71 69 69 70 70 70
RH 77 67 67 74 82 90 93 93 74 69 67 72 76 85 90 87 72 67 67 74 82
Wind dir NE NE NE NE NE E E NE NE NE NE NE NE NE NE NE NE NE NE NE E
Wind spd 9 10 12 12 11 10 8 8 9 11 13 14 13 11 11 11 13 14 19 16 17
Clouds SC SC FW CL SC SC SC SC SC CL SC SC SC SC SC SC FW FW B1 B1 FW
PoP 12hr 10 20 20 30 30
QPF 12hr 0.05 0.10 0.06 0.07 0.13
Rain shwrs S S S S S S S S S S S C C S S C C
Heat index 82 86 88 84 86 88 85 85 86 82
Max heat 82 88 87 88 87 86 85
Date Sun 04/21/24 Mon 04/22/24 Tue 04/23/24 Wed 04/24/24
AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
Min/Max 73 83 72 83 74 83 75 83
Temp 74 79 83 76 73 78 83 77 75 79 83 78 75 79 83 77
Dewpt 72 70 71 72 73 71 73 74 74 72 74 74 74 72 73 73
PWind dir E NE E E E NE E E
Wind char BZ BZ BZ GN GN GN GN BZ
Avg clouds FW FW SC SC SC SC B1 B2 B2 B1 SC B1 SC SC B1 B1
PoP 12hr 5 30 30 60 50 60 30 40
Rain shwrs S C C C C L L C C L L S C C C
Tstms S S S S
$$
PRZ010-182000-
Eugenio Maria de Hosto Airport-Mayaguez PR
18.27N 67.15W Elev. 28 ft
503 AM AST Thu Apr 18 2024
Date Thu 04/18/24 Fri 04/19/24 Sat 04/20/24
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 88 73 88 73 86
Temp 81 86 88 84 78 76 74 74 81 86 88 84 78 76 74 74 80 85 86 82 76
Dewpt 73 75 76 76 74 73 72 71 73 75 76 76 73 73 71 71 72 74 75 74 72
RH 77 70 68 77 88 90 93 90 77 70 68 77 85 90 90 90 77 70 70 77 87
Wind dir NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE
Wind spd 6 5 9 12 10 8 6 8 8 8 10 14 13 10 10 10 11 9 13 9 12
Clouds CL FW B1 SC SC FW FW FW SC FW SC B1 CL CL FW FW FW FW B2 B2 SC
PoP 12hr 40 20 30 0 60
QPF 12hr 0.24 0.07 0.14 0 0.37
Rain shwrs C S S S S S S S C L L S
Tstms S S
Heat index 86 96 99 93 86 96 99 93 84 92 95 88
Max heat 86 99 99 86 99 99 84 95 94
Date Sun 04/21/24 Mon 04/22/24 Tue 04/23/24 Wed 04/24/24
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 71 87 72 87 73 87 74 88
Temp 72 80 87 77 73 80 87 78 74 81 87 79 75 82 88 78
Dewpt 70 72 76 75 73 74 78 76 74 75 79 76 74 74 78 75
PWind dir NE NE E E E NE E NE
Wind char GN LT GN LT LT LT LT LT
Avg clouds SC FW SC B1 CL CL SC B1 FW FW SC SC CL CL SC B1
PoP 12hr 10 70 0 60 0 50 0 60
Rain shwrs S S L L L L C C L L
Tstms S S S S
$$
VIZ001-182000-
CYRIL E. King Airport-St Thomas USVI
18.33N 64.97W Elev. 23 ft
503 AM AST Thu Apr 18 2024
Date Thu 04/18/24 Fri 04/19/24 Sat 04/20/24
AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00
Max/Min 86 77 87 77 87
Temp 82 85 86 83 80 79 78 78 83 86 87 84 81 79 78 78 83 86 87 84 80
Dewpt 74 73 74 74 74 74 73 73 73 74 74 73 73 74 73 73 73 73 73 73 73
RH 77 67 68 74 82 85 85 85 72 68 65 70 77 85 85 85 72 65 63 70 79
Wind dir NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE
Wind spd 6 8 9 9 10 9 8 8 6 8 6 9 11 12 12 13 13 13 14 14 16
Clouds SC SC SC SC SC B1 B2 OV B2 SC SC SC B1 B1 B2 B2 B1 B1 SC SC B2
PoP 12hr 30 50 50 50 50
QPF 12hr 0.14 0.30 0.17 0.14 0.14
Rain shwrs C C S S S C C C C S C C C C C C C C S S C
Heat index 88 92 94 90 85 88 93 95 91 85 88 93 94 90 84
Max heat 88 94 93 84 88 95 95 84 88 94 94
Date Sun 04/21/24 Mon 04/22/24 Tue 04/23/24 Wed 04/24/24
AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
Min/Max 76 87 77 86 78 86 77 87
Temp 77 82 87 81 78 82 86 81 78 82 86 80 78 83 87 81
Dewpt 73 74 75 75 75 76 76 76 76 76 76 76 75 75 75 74
PWind dir E E E E E E E E
Wind char BZ BZ BZ GN GN GN BZ BZ
Avg clouds B2 B2 B2 B1 SC SC SC B1 B2 B1 B1 B1 B2 B1 B1 B1
PoP 12hr 50 60 30 50 50 50 50 40
Rain shwrs C C L L S C C C C C C C C C C C
Tstms S
$$
VIZ002-182000-
Henry E. Rohlsen Airport-St Croix USVI
17.70N 64.80W Elev. 74 ft
503 AM AST Thu Apr 18 2024
Date Thu 04/18/24 Fri 04/19/24 Sat 04/20/24
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 87 74 87 75 87
Temp 83 86 87 83 79 77 75 75 81 86 87 84 79 77 76 76 82 86 87 84 79
Dewpt 74 73 73 73 73 73 73 72 74 73 74 73 73 73 73 72 73 73 74 73 73
RH 74 65 63 72 82 87 94 90 79 65 65 70 82 87 90 87 74 65 65 70 82
Wind dir NE NE NE NE NE NE NE NE NE E NE NE NE NE NE NE NE NE NE NE NE
Wind spd 4 5 8 8 8 9 6 5 5 6 5 8 10 10 9 10 11 12 12 12 12
Clouds SC SC FW FW SC B1 B2 B2 B1 B1 SC SC B1 B1 B1 B1 B1 B1 SC SC B1
PoP 12hr 30 50 40 40 40
QPF 12hr 0.12 0.29 0.18 0.11 0.12
Rain shwrs C C S S C C C C C S S C C C C C C S S C
Heat index 89 93 95 90 87 93 95 90 83 87 93 95 90 83
Max heat 89 95 94 87 95 94 87 95 94
Date Sun 04/21/24 Mon 04/22/24 Tue 04/23/24 Wed 04/24/24
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 87 76 87 76 88 75 86
Temp 76 82 87 80 77 82 87 80 77 83 88 80 76 81 86 79
Dewpt 73 74 74 74 74 75 75 75 74 75 75 74 74 74 74 73
PWind dir NE E E E E E E E
Wind char GN GN GN GN GN GN GN BZ
Avg clouds B1 B1 B1 B1 B1 B1 SC B1 B1 B1 SC B1 B2 B1 B1 B1
PoP 12hr 40 40 40 40 40 50 50 40
Rain shwrs C C C C C C C C C C C C C C C C
Tstms S S
$$