978
FOCA52 TJSJ 180902
AFMSJU
AREA FORECAST MATRICES
NATIONAL WEATHER SERVICE SAN JUAN PR
502 AM AST FRI JUL 18 2025
PRZ001-182000-
SAN JUAN AND VICINITY-
INCLUDING THE CITIES OF BAYAMON, CAROLINA, CATANO, GUAYNABO,
SAN JUAN, TOA ALTA, TOA BAJA, AND TRUJILLO ALTO
502 AM AST FRI JUL 18 2025
DATE FRI 07/18/25 SAT 07/19/25 SUN 07/20/25
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 81 88 91 72 76 82 80 88 90 72 76 82 79 87 89
TEMP 83 87 88 85 80 78 76 77 83 87 88 85 80 78 76 77 83 86 87 84 80
DEWPT 76 77 76 76 75 75 74 74 75 75 75 76 75 75 75 74 76 76 76 76 75
RH 80 72 68 75 85 91 94 90 77 68 66 75 85 91 97 90 80 72 70 77 85
WIND DIR E E E NE E E E E E E E E E E SE SE E E E E E
WIND SPD 8 12 13 13 9 8 5 4 6 10 13 12 8 5 5 5 8 11 12 12 8
WIND GUST 25 23
CLOUDS FW SC SC SC SC B1 B1 B2 B1 B1 B2 B2 B1 B1 B1 B1 SC SC B1 B1 SC
POP 12HR 20 50 60 40 50
QPF 12HR 0.04-0.09 0.09-0.32 0.64-0.85 0.06-0.18 0.06-0.54
SNOW 12HR MM MM MM
RAIN SHWRS IS IS IS IS IS SC SC SC SC SC NM NM SC SC SC SC SC SC SC SC IS
TSTMS IS IS IS IS IS IS IS
OBVIS H H
HEAT INDEX 92 98 99 94 83 90 96 97 94 83 90 96 98 93 83
MAX HEAT 97 106 105 91 95 105 103 90 95 106 105
HEAT Y Y
DATE MON 07/21/25 TUE 07/22/25 WED 07/23/25 THU 07/24/25
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 76 88 76 88 77 88
TEMP 76 83 87 80 76 83 88 80 77 83 88 81 77 84 88 80
DEWPT 74 74 74 74 74 76 77 76 75 76 76 76 75 76 76 76
PWIND DIR E E NE E E E E E
WIND CHAR LT GN GN GN GN GN GN GN
AVG CLOUDS SC B1 SC B1 SC SC SC SC CL FW SC SC SC SC B1 B1
POP 12HR 50 40 30 30 5 30 40 40
RAIN SHWRS SC SC SC SC IS IS IS IS IS SC SC IS IS SC SC
TSTMS IS
PRZ002-182000-
NORTHEAST-
INCLUDING THE CITIES OF CEIBA, CANOVANAS, FAJARDO, HUMACAO,
LOIZA, LUQUILLO, NAGUABO, AND RIO GRANDE
502 AM AST FRI JUL 18 2025
DATE FRI 07/18/25 SAT 07/19/25 SUN 07/20/25
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 74 85 90 65 76 82 74 85 90 66 76 82 73 84 89
TEMP 82 85 85 83 79 77 76 77 81 84 85 83 79 78 76 77 81 84 84 83 79
DEWPT 75 75 75 75 74 74 74 73 74 75 74 75 74 74 74 74 75 75 75 75 74
RH 79 72 72 77 85 90 94 87 79 74 70 77 85 88 94 90 82 74 74 77 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 12 12 12 9 9 8 8 8 10 10 10 8 8 8 8 11 11 11 11 8
WIND GUST 19 21
CLOUDS SC SC SC SC SC B1 B1 B2 B1 B2 B2 B2 B1 B1 B1 B1 SC SC B1 B1 SC
POP 12HR 30 60 60 50 50
QPF 12HR 0.07 0.09-0.32 0.69-0.85 0.08-0.18 0.09-0.54
SNOW 12HR MM MM MM
RAIN SHWRS IS SC IS IS SC SC SC NM SC SC NM NM SC SC SC SC SC SC SC SC IS
TSTMS IS IS IS IS IS IS IS IS
OBVIS H
HEAT INDEX 88 93 94 91 82 87 92 93 90 83 87 91 92 89 82
MAX HEAT 95 103 103 92 94 101 100 90 95 100 100
HEAT Y Y
DATE MON 07/21/25 TUE 07/22/25 WED 07/23/25 THU 07/24/25
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 84 76 85 77 85 77 86
TEMP 76 81 84 79 76 82 85 79 77 82 85 80 77 82 86 80
DEWPT 73 73 73 73 74 75 76 74 74 75 76 75 75 75 75 75
PWIND DIR E E E E E E E E
WIND CHAR GN GN GN GN GN GN GN GN
AVG CLOUDS SC B1 B1 B1 B1 B1 B1 SC FW SC SC B1 SC B1 B2 B1
POP 12HR 50 50 40 40 30 40 60 60
RAIN SHWRS SC SC SC SC SC SC SC IS IS IS SC SC SC SC SC SC
TSTMS IS IS IS IS
PRZ003-182000-
SOUTHEAST-
INCLUDING THE CITIES OF ARROYO, GUAYAMA, MAUNABO, PATILLAS,
SALINAS, AND YABUCOA
502 AM AST FRI JUL 18 2025
DATE FRI 07/18/25 SAT 07/19/25 SUN 07/20/25
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 76 86 92 68 75 82 75 86 92 68 76 82 74 85 91
TEMP 82 86 86 84 79 77 75 76 81 85 86 83 79 77 76 77 81 84 85 83 79
DEWPT 73 73 73 73 73 73 72 72 73 72 72 73 73 74 73 73 73 73 73 73 72
RH 74 65 65 70 82 87 90 87 77 65 63 72 82 90 90 87 77 70 67 72 79
WIND DIR E E E E NE NE NE NE E E E E E E E E E E E E E
WIND SPD 9 10 12 12 9 8 6 5 8 10 11 11 8 6 6 6 9 10 11 11 8
WIND GUST 19 20 26 25 19 21 26 24 23 24 24
CLOUDS FW FW FW FW FW FW FW FW SC B1 SC SC SC SC SC SC SC SC B1 B1 FW
POP 12HR 5 10 50 30 40
QPF 12HR 0.01 0.02-0.09 0.06-0.80 0.00-0.11 0.02-0.09
SNOW 12HR MM MM MM
RAIN SHWRS IS IS IS IS IS IS SC SC SC IS IS IS IS SC SC SC SC IS
TSTMS IS IS
OBVIS H H
HEAT INDEX 88 92 93 90 81 86 91 92 89 82 85 89 91 88 81
MAX HEAT 96 102 102 90 94 100 100 90 94 100 100
HEAT Y Y
DATE MON 07/21/25 TUE 07/22/25 WED 07/23/25 THU 07/24/25
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 85 76 86 76 86 76 86
TEMP 76 81 85 79 76 82 86 79 76 82 86 80 77 82 86 79
DEWPT 73 74 73 73 74 75 76 75 74 75 76 75 75 75 73 73
PWIND DIR E E NE E NE E NE E
WIND CHAR GN GN GN GN GN GN GN GN
AVG CLOUDS SC B1 FW SC B1 B1 SC FW CL FW SC SC SC SC B1 B1
POP 12HR 50 30 40 40 20 30 50 50
RAIN SHWRS SC SC IS SC SC SC IS IS IS SC SC IS SC SC SC
TSTMS IS
PRZ004-182000-
EASTERN INTERIOR-
INCLUDING THE CITIES OF AGUAS BUENAS, CAGUAS, CAYEY, CIDRA,
COMERIO, GURABO, JUNCOS, LAS PIEDRAS, AND SAN LORENZO
502 AM AST FRI JUL 18 2025
DATE FRI 07/18/25 SAT 07/19/25 SUN 07/20/25
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 74 85 91 67 72 76 74 84 91 68 73 76 73 83 89
TEMP 80 84 85 82 76 74 73 74 79 83 84 81 76 75 73 74 79 82 83 81 76
DEWPT 74 74 73 73 73 73 72 72 73 73 73 73 72 72 72 72 74 74 73 73 72
RH 82 72 67 74 90 97 97 93 82 72 70 77 87 90 97 93 85 77 72 77 87
WIND DIR E E E E E NE NE E E E SE E E E E E E E E E E
WIND SPD 6 9 10 10 5 4 2 3 5 9 10 10 5 4 4 4 8 9 10 10 4
CLOUDS FW SC SC SC FW SC SC SC SC B2 B2 B2 FW FW SC SC SC SC SC SC FW
POP 12HR 20 30 60 30 30
QPF 12HR 0.01-0.09 0.02-0.32 0.07-0.81 0.01-0.11 0.01-0.54
SNOW 12HR MM MM MM
RAIN SHWRS IS IS IS IS IS IS IS SC IS SC NM NM IS IS SC SC IS IS SC SC IS
TSTMS IS IS IS
OBVIS H H
HEAT INDEX 84 90 91 86 82 89 90 86 81 87 89 84
MAX HEAT 96 105 101 85 94 102 100 84 93 102 99
HEAT Y Y
DATE MON 07/21/25 TUE 07/22/25 WED 07/23/25 THU 07/24/25
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 73 84 73 84 74 85
TEMP 73 79 83 76 73 80 84 77 73 80 84 77 74 80 85 77
DEWPT 71 72 71 71 72 74 74 73 72 74 74 73 73 74 74 73
PWIND DIR E E NE E NE E E E
WIND CHAR LT GN GN GN GN GN GN GN
AVG CLOUDS SC B1 SC B1 SC SC SC FW FW FW SC B1 SC SC B1 B1
POP 12HR 50 40 30 30 5 40 50 50
RAIN SHWRS SC SC SC SC IS SC SC IS IS SC SC IS SC SC SC
TSTMS IS IS IS
PRZ005-182000-
NORTH CENTRAL-
INCLUDING THE CITIES OF ARECIBO, BARCELONETA, DORADO, FLORIDA,
MANATI, VEGA ALTA, AND VEGA BAJA
502 AM AST FRI JUL 18 2025
DATE FRI 07/18/25 SAT 07/19/25 SUN 07/20/25
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 88 92 72 75 82 82 87 92 72 74 82 82 87 91
TEMP 83 87 88 84 79 77 75 76 82 86 87 84 79 77 75 76 82 86 87 84 78
DEWPT 77 77 78 77 76 76 75 74 76 76 78 77 76 75 74 73 76 77 78 77 76
RH 82 72 72 80 91 97100 94 82 72 75 80 91 94 97 90 82 75 75 80 94
WIND DIR E E NE NE E E E SE E E NE E E E SE SE E E E E E
WIND SPD 9 13 17 14 11 9 8 6 6 10 14 10 6 6 5 5 6 11 14 13 9
WIND GUST 28 26 21 28 23 29 27
CLOUDS FW FW FW SC SC SC SC SC SC SC B2 B2 B1 B1 SC SC SC SC B1 B1 FW
POP 12HR 10 30 50 30 40
QPF 12HR 0.00-0.08 0.01-0.32 0.08-1.22 0.02-0.11 0.03-0.60
SNOW 12HR MM MM MM
RAIN SHWRS IS IS IS IS SC IS SC IS IS SC SC SC SC SC SC IS IS SC SC IS
TSTMS IS IS IS IS IS IS
OBVIS H H
HEAT INDEX 92 99101 95 82 90 97100 94 80 89 97100 93 80
MAX HEAT 100 113 109 92 97 111 109 90 96 111 108
HEAT Y Y
DATE MON 07/21/25 TUE 07/22/25 WED 07/23/25 THU 07/24/25
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 74 87 75 89 75 89 76 88
TEMP 75 82 87 79 75 83 89 80 76 83 89 80 77 83 88 80
DEWPT 74 75 76 74 74 76 78 76 75 76 78 76 75 76 78 76
PWIND DIR E E E E E E E E
WIND CHAR LT GN GN GN GN GN GN BZ
AVG CLOUDS SC SC SC SC FW FW FW SC CL FW SC SC FW FW SC SC
POP 12HR 20 30 5 20 5 30 5 40
RAIN SHWRS IS IS SC SC IS IS IS IS SC SC IS SC SC
PRZ006-182000-
CENTRAL INTERIOR-
INCLUDING THE CITIES OF AIBONITO, BARRANQUITAS, CIALES, COAMO,
COROZAL, JAYUYA, MOROVIS, NARANJITO, OROCOVIS, AND VILLALBA
502 AM AST FRI JUL 18 2025
DATE FRI 07/18/25 SAT 07/19/25 SUN 07/20/25
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 74 83 92 61 71 75 74 82 91 61 71 76 73 81 90
TEMP 79 82 83 80 75 73 71 72 77 81 82 79 75 73 71 72 77 80 81 79 74
DEWPT 73 73 74 73 72 72 71 70 72 72 73 73 71 71 70 70 72 73 73 73 71
RH 82 74 74 79 90 97100 93 85 74 74 82 87 93 97 93 85 79 77 82 90
WIND DIR E E E NE NE NE E E E E SE SE E E E E E E E E E
WIND SPD 6 9 11 9 5 4 3 3 4 8 8 6 3 4 3 3 5 9 10 9 5
WIND GUST 20 26 20 20 25 21 21 23 23
CLOUDS CL SC B1 B1 SC FW FW FW FW B1 B2 B2 FW FW SC SC FW FW SC SC CL
POP 12HR 50 10 60 5 40
QPF 12HR 0.01-1.21 0.01-0.12 0.06-1.24 0.00-0.07 0.00-0.60
SNOW 12HR MM MM MM
RAIN SHWRS IS SC SC IS IS IS IS IS SC NM NM IS IS IS IS IS IS SC SC
TSTMS IS IS IS IS IS IS
OBVIS H H
HEAT INDEX 81 86 88 83 84 86 82 84 85 81
MAX HEAT 94 105 103 84 93 103 102 83 91 102 100
DATE MON 07/21/25 TUE 07/22/25 WED 07/23/25 THU 07/24/25
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 82 71 83 71 83 72 84
TEMP 71 77 82 74 71 78 83 75 72 79 83 76 73 79 84 76
DEWPT 70 72 71 69 71 73 74 72 71 73 73 72 72 73 73 72
PWIND DIR E E NE E E E E E
WIND CHAR LT GN GN GN GN GN GN GN
AVG CLOUDS FW SC FW SC FW FW SC SC CL FW FW SC FW FW SC SC
POP 12HR 20 30 5 30 0 40 5 50
RAIN SHWRS SC SC SC SC IS IS IS IS SC SC IS SC SC
TSTMS IS IS
PRZ007-182000-
PONCE AND VICINITY-
INCLUDING THE CITIES OF GUAYANILLA, JUANA DIAZ, YAUCO, PENUELAS,
PONCE, AND SANTA ISABEL
502 AM AST FRI JUL 18 2025
DATE FRI 07/18/25 SAT 07/19/25 SUN 07/20/25
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 74 87 92 63 74 82 74 86 92 63 75 82 73 85 91
TEMP 82 86 87 84 78 76 75 75 81 85 86 83 78 77 75 76 81 84 85 83 78
DEWPT 71 71 72 73 72 71 70 69 70 71 71 72 72 71 71 70 71 71 71 72 71
RH 69 61 61 70 82 85 84 82 69 63 61 70 82 82 87 82 72 65 63 70 79
WIND DIR E E SE SE NE NE NE NE E SE SE SE E E E E E SE SE SE E
WIND SPD 8 10 12 8 6 5 4 3 4 10 10 9 5 5 4 4 6 11 11 10 8
WIND GUST 24 29 24 23 25 23 25 25 24
CLOUDS FW FW SC B1 SC FW CL CL FW SC SC SC FW FW CL CL FW FW SC SC FW
POP 12HR 40 20 30 0 10
QPF 12HR 0.00-1.21 0.03 0.01-1.06 0 0.00-0.05
SNOW 12HR MM MM MM
RAIN SHWRS SC NM IS IS IS IS IS IS IS IS IS IS
TSTMS IS IS IS IS
OBVIS H H
HEAT INDEX 87 91 93 90 81 85 90 91 88 81 84 89 90 87 80
MAX HEAT 94 103 102 90 91 101 99 89 92 100 98
HEAT Y Y
DATE MON 07/21/25 TUE 07/22/25 WED 07/23/25 THU 07/24/25
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 85 74 87 75 88 76 88
TEMP 75 81 85 78 75 82 87 79 75 83 88 80 76 83 88 80
DEWPT 70 71 71 70 70 72 74 73 71 72 73 72 71 72 71 71
PWIND DIR E E NE E E E NE E
WIND CHAR LT GN LT GN LT GN LT GN
AVG CLOUDS FW FW FW SC FW FW FW FW CL FW FW SC CL FW SC SC
POP 12HR 0 30 5 5 0 20 0 50
RAIN SHWRS IS IS IS IS IS IS IS IS IS IS SC SC
TSTMS IS
PRZ008-182000-
NORTHWEST-
INCLUDING THE CITIES OF AGUADILLA, CAMUY, HATILLO, ISABELA,
AND QUEBRADILLAS
502 AM AST FRI JUL 18 2025
DATE FRI 07/18/25 SAT 07/19/25 SUN 07/20/25
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 84 86 92 69 74 82 82 85 92 69 73 82 81 85 91
TEMP 82 85 86 83 78 76 74 75 81 84 85 83 77 75 74 75 80 84 85 82 77
DEWPT 75 75 76 75 75 75 74 73 74 74 75 75 75 74 73 72 74 75 76 75 75
RH 79 72 72 77 91 97100 94 79 72 72 77 94 97 97 90 82 74 75 79 94
WIND DIR E E NE NE E E E E E NE NE E E E E E E E NE E E
WIND SPD 10 12 14 14 13 12 11 8 9 8 8 5 6 6 6 6 8 8 11 10 9
WIND GUST 23 27 25 23 21 18 20 26 24
CLOUDS FW CL FW FW FW SC FW SC SC FW B2 B2 B1 B1 SC SC CL CL B2 B2 SC
POP 12HR 5 10 70 40 60
QPF 12HR 0.00-0.06 0.02 0.65-1.26 0.02-0.13 0.05-0.62
SNOW 12HR MM MM MM
RAIN SHWRS IS IS IS IS IS IS IS IS NM NM SC SC IS IS NM NM IS
TSTMS IS IS IS IS IS IS
OBVIS H H
HEAT INDEX 88 95 97 91 85 92 95 89 84 92 95 88
MAX HEAT 97 111 108 91 96 107 106 90 94 108 106
HEAT Y Y
DATE MON 07/21/25 TUE 07/22/25 WED 07/23/25 THU 07/24/25
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 85 73 87 74 87 74 87
TEMP 73 80 85 77 74 82 87 78 75 82 87 79 75 82 87 78
DEWPT 72 73 74 73 72 74 77 75 73 74 77 75 74 74 77 75
PWIND DIR E E E E E E E E
WIND CHAR LT GN GN GN GN GN GN BZ
AVG CLOUDS SC FW SC SC FW FW FW SC FW FW SC SC CL CL FW SC
POP 12HR 10 40 0 40 0 40 0 40
RAIN SHWRS IS IS SC SC SC SC SC SC SC SC
TSTMS IS IS IS
PRZ009-182000-
WESTERN INTERIOR-
INCLUDING THE CITIES OF ADJUNTAS, LARES, LAS MARIAS, MARICAO,
SABANA GRANDE, SAN SEBASTIAN, AND UTUADO
502 AM AST FRI JUL 18 2025
DATE FRI 07/18/25 SAT 07/19/25 SUN 07/20/25
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 74 83 92 64 71 74 74 82 92 64 71 75 73 82 91
TEMP 79 83 83 80 75 73 71 72 78 81 82 80 75 73 71 72 77 81 82 79 74
DEWPT 73 73 75 73 72 72 71 69 72 72 73 73 72 72 71 69 72 72 74 73 72
RH 82 72 77 79 90 97100 90 82 74 74 79 90 97100 90 85 74 77 82 93
WIND DIR E E E E NE E E E E E E E E E E E E E E E E
WIND SPD 5 5 6 6 6 5 4 3 3 4 4 3 3 4 3 4 4 5 5 4 4
WIND GUST 23 16 20 21 24 24 19
CLOUDS CL FW B1 B2 SC FW CL CL FW SC OV OV FW FW FW FW CL CL B1 B1 FW
POP 12HR 70 20 80 0 60
QPF 12HR 0.01-1.22 0.02 0.05-1.24 0 0.00-0.61
SNOW 12HR MM MM MM
RAIN SHWRS SC NM IS IS D D IS IS IS IS NM NM IS
TSTMS IS IS SC SC IS IS
OBVIS H H
HEAT INDEX 81 88 91 84 86 88 83 84 87 82
MAX HEAT 94 108 106 91 105 103 83 91 105 103
DATE MON 07/21/25 TUE 07/22/25 WED 07/23/25 THU 07/24/25
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 82 71 84 71 84 72 84
TEMP 71 78 82 74 71 79 84 76 72 79 84 76 72 79 84 76
DEWPT 70 71 71 70 69 72 74 73 71 72 74 72 71 72 74 72
PWIND DIR E E E E E E E E
WIND CHAR LT GN LT GN GN GN LT GN
AVG CLOUDS FW CL FW SC FW FW SC SC CL CL SC SC CL CL SC B1
POP 12HR 5 50 0 50 0 50 0 60
RAIN SHWRS IS SC SC NM NM SC SC NM NM
TSTMS IS IS IS IS IS IS IS IS
PRZ010-182000-
MAYAGUEZ AND VICINITY-
INCLUDING THE CITIES OF AGUADA, ANASCO, HORMIGUEROS, MAYAGUEZ,
MOCA, RINCON, AND SAN GERMAN
502 AM AST FRI JUL 18 2025
DATE FRI 07/18/25 SAT 07/19/25 SUN 07/20/25
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 76 88 92 68 74 82 75 87 92 69 74 82 74 86 91
TEMP 83 87 88 85 79 76 74 75 82 86 87 84 79 77 75 76 82 85 86 83 78
DEWPT 75 76 77 76 75 74 73 72 74 75 76 76 75 74 73 72 74 76 77 76 75
RH 77 70 70 75 88 94 97 90 77 70 70 77 88 90 94 87 77 75 75 80 91
WIND DIR E E E E NE E E E E E NE E E E E E E E E E E
WIND SPD 6 5 6 9 12 11 9 6 5 4 4 5 5 6 6 6 5 5 6 6 5
WIND GUST 18 17 19 19 27 26 25 17 14 18 23 20 19 16
CLOUDS CL CL B1 B2 SC FW FW FW FW CL B2 B2 B1 B1 FW FW CL CL B1 B1 B1
POP 12HR 70 30 70 30 40
QPF 12HR 0.00-1.22 0.01-0.10 0.05-1.26 0.00-0.12 0.01-0.62
SNOW 12HR MM MM MM
RAIN SHWRS SC D IS D D SC SC NM NM SC
TSTMS IS IS SC SC IS IS IS IS
OBVIS H H
HEAT INDEX 90 98101 94 80 87 95 98 93 80 87 95 98 92
MAX HEAT 97 111 109 92 94 109 106 90 94 109 106
HEAT Y Y
DATE MON 07/21/25 TUE 07/22/25 WED 07/23/25 THU 07/24/25
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 74 87 74 88 74 89 75 89
TEMP 75 82 87 78 74 83 88 79 75 83 89 80 76 83 89 79
DEWPT 73 73 75 73 71 73 77 76 73 74 77 76 74 74 77 76
PWIND DIR E E E E E E E E
WIND CHAR LT GN LT GN GN GN GN GN
AVG CLOUDS SC CL FW SC FW FW FW SC FW FW SC SC FW FW SC SC
POP 12HR 40 50 0 50 0 50 0 60
RAIN SHWRS SC SC SC NM NM IS NM NM NM NM
TSTMS IS IS IS IS IS IS IS IS
PRZ011-182000-
SOUTHWEST-
INCLUDING THE CITIES OF CABO ROJO, GUANICA, AND LAJAS
502 AM AST FRI JUL 18 2025
DATE FRI 07/18/25 SAT 07/19/25 SUN 07/20/25
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 84 90 92 70 74 82 83 90 92 72 75 82 83 89 91
TEMP 84 89 90 86 79 77 75 76 83 88 90 86 80 78 76 77 83 88 89 85 80
DEWPT 73 73 74 74 74 73 72 71 71 72 73 74 73 73 72 72 73 74 73 74 73
RH 70 59 60 68 85 87 90 85 67 59 58 68 79 85 87 85 72 63 59 70 79
WIND DIR E SE SE E E E E E E SE SE SE E E E E E SE SE SE E
WIND SPD 9 12 10 6 8 4 4 4 5 11 12 10 6 9 9 8 9 14 14 11 11
WIND GUST 20 26 23 25 27 20 19 20 19 19 28 29 24 26
CLOUDS CL CL SC B2 B1 FW CL CL FW FW SC SC SC SC FW FW FW FW FW FW SC
POP 12HR 60 40 20 10 30
QPF 12HR 0.03-1.22 0.04 0.01-1.07 0.01 0.01
SNOW 12HR MM MM MM
RAIN SHWRS IS SC SC IS IS IS IS IS SC
TSTMS IS IS IS
OBVIS H H
HEAT INDEX 91 98100 94 81 88 96 98 94 83 89 96 97 93 83
MAX HEAT 94 109 108 92 92 105 103 89 92 103 102
HEAT Y Y
DATE MON 07/21/25 TUE 07/22/25 WED 07/23/25 THU 07/24/25
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 74 90 75 91 76 91
TEMP 76 84 89 79 75 84 90 80 76 85 91 81 76 85 91 80
DEWPT 72 73 74 73 70 73 77 76 72 73 77 76 72 74 74 74
PWIND DIR E E NE E E E E E
WIND CHAR GN GN LT GN LT GN LT GN
AVG CLOUDS SC CL FW SC FW FW FW FW CL FW FW FW CL CL FW SC
POP 12HR 30 20 0 5 0 10 0 50
RAIN SHWRS SC IS IS IS IS IS IS SC SC
TSTMS IS IS
PRZ012-182000-
CULEBRA-
INCLUDING THE CITY OF CULEBRA
502 AM AST FRI JUL 18 2025
DATE FRI 07/18/25 SAT 07/19/25 SUN 07/20/25
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 84 87 92 76 79 82 83 86 91 80 83 86 90
TEMP 84 86 87 85 82 81 79 80 84 86 86 85 82 81 80 81 84 85 86 85 82
DEWPT 76 77 76 77 76 76 75 75 75 76 76 76 75 76 75 75 76 77 77 76 75
RH 77 75 70 77 82 85 88 85 74 72 72 75 79 85 85 82 77 77 75 75 79
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 14 16 16 16 16 16 14 13 12 12 12 12 12 13 14 14 14 14 14 13 13
CLOUDS FW SC SC FW SC B1 B2 B2 SC SC B1 B1 B1 B1 B2 B2 SC SC B1 B1 SC
POP 12HR 20 50 40 50 40
QPF 12HR 0.04 0.32 0.05-0.69 0.10 0.09
SNOW 12HR MM MM MM
RAIN SHWRS IS IS IS IS SC SC SC IS SC SC SC SC SC SC SC SC SC SC SC SC
TSTMS IS IS
OBVIS H H
HEAT INDEX 93 97 98 96 89 87 82 84 92 95 96 95 89 87 83 85 92 96 96 94 89
MAX HEAT 96 103 103 92 95 102 102 91 95 102 101
DATE MON 07/21/25 TUE 07/22/25 WED 07/23/25 THU 07/24/25
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 86 80 87 80 87 80 87
TEMP 80 84 86 82 80 84 87 82 80 84 87 82 80 84 87 82
DEWPT 75 74 75 75 76 76 77 76 76 76 77 77 76 76 78 77
PWIND DIR E E E E E E E E
WIND CHAR BZ GN BZ BZ BZ BZ BZ BZ
AVG CLOUDS SC SC B1 SC B1 B1 B1 SC SC SC SC SC SC SC SC SC
POP 12HR 30 40 40 40 20 20 30 40
RAIN SHWRS IS SC SC SC SC SC SC IS IS IS IS IS IS IS IS SC
PRZ013-182000-
VIEQUES-
INCLUDING THE CITY OF VIEQUES
502 AM AST FRI JUL 18 2025
DATE FRI 07/18/25 SAT 07/19/25 SUN 07/20/25
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 78 82 83 86 90 76 79 82 83 86 89
TEMP 84 86 87 85 81 79 78 79 83 85 86 85 81 80 79 80 83 85 86 84 81
DEWPT 75 75 75 75 75 75 74 74 74 75 74 74 74 75 74 74 75 75 74 75 74
RH 74 70 68 72 82 88 88 85 74 72 68 70 79 85 85 82 77 72 68 74 79
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 13 14 17 16 16 17 14 13 12 12 11 12 12 13 14 14 14 14 14 12 12
CLOUDS FW SC FW FW FW SC B1 B1 FW B1 B1 B1 B1 B1 B2 B2 SC SC B1 B1 SC
POP 12HR 10 50 40 50 40
QPF 12HR 0.02 0.08-0.29 0.02-0.81 0.09 0.08
SNOW 12HR MM MM MM
RAIN SHWRS IS IS IS IS IS IS SC SC IS SC SC SC SC SC SC SC IS IS SC SC SC
TSTMS IS IS IS IS
OBVIS H H
HEAT INDEX 91 95 95 93 86 82 80 90 94 94 92 87 84 80 82 90 93 94 92 86
MAX HEAT 94 99 99 91 93 99 99 90 94 99 98
DATE MON 07/21/25 TUE 07/22/25 WED 07/23/25 THU 07/24/25
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 86 79 87 79 87 79 87
TEMP 79 83 86 81 79 84 87 81 79 84 87 81 79 84 87 81
DEWPT 74 73 73 74 74 75 75 75 74 75 75 75 75 75 75 75
PWIND DIR E E E E E E E E
WIND CHAR BZ GN GN GN GN BZ BZ BZ
AVG CLOUDS SC SC B1 B1 B1 B1 SC SC SC SC SC SC SC B1 B1 SC
POP 12HR 30 40 40 40 30 30 50 50
RAIN SHWRS SC SC SC SC SC SC SC IS IS IS SC SC SC SC SC SC
VIZ001-182000-
ST.THOMAS...ST. JOHN...AND ADJACENT ISLANDS-
INCLUDING THE CITIES OF ANNA'S RETREAT, CHARLOTTE AMALIE,
CHARLOTTE AMALIE EAST, CHARLOTTE AMALIE WEST, AND CRUZ BAY
502 AM AST FRI JUL 18 2025
DATE FRI 07/18/25 SAT 07/19/25 SUN 07/20/25
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 84 85 91 71 78 82 83 85 91 71 79 82 82 84 90
TEMP 83 85 85 83 81 79 78 79 82 84 85 83 81 80 79 80 82 84 84 83 80
DEWPT 76 75 75 76 75 76 75 75 75 75 75 75 75 75 75 75 75 75 75 75 75
RH 80 72 72 80 82 91 91 88 79 74 72 77 82 85 88 85 79 74 74 77 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 17 16 16 16 16 17 14 13 12 12 11 12 13 13 14 16 16 16 16 12 16
CLOUDS CL FW FW FW SC B1 B1 B1 FW SC B1 B1 SC SC B2 B2 SC SC SC SC SC
POP 12HR 20 40 30 50 30
QPF 12HR 0.03 0.11 0.03-0.11 0.09 0.04-0.10
SNOW 12HR MM MM MM
RAIN SHWRS IS IS IS IS SC SC SC IS IS SC SC SC SC SC SC IS IS IS IS SC
TSTMS IS IS
OBVIS H H
HEAT INDEX 90 93 94 92 85 83 80 82 89 92 93 91 85 84 81 83 89 92 92 90 84
MAX HEAT 98 102 103 91 96 102 102 93 96 102 101
DATE MON 07/21/25 TUE 07/22/25 WED 07/23/25 THU 07/24/25
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 84 79 85 79 85 79 85
TEMP 79 82 84 80 79 83 85 81 79 83 85 81 79 83 85 81
DEWPT 75 74 74 75 75 76 76 75 75 76 76 76 76 76 76 76
PWIND DIR E E E E E E E E
WIND CHAR BZ BZ BZ BZ BZ BZ BZ BZ
AVG CLOUDS SC SC SC SC SC SC SC SC SC SC SC FW SC SC FW FW
POP 12HR 30 20 20 20 20 20 20 20
RAIN SHWRS SC SC SC IS IS IS IS IS IS IS IS IS IS IS IS IS
VIZ002-182000-
ST CROIX-
INCLUDING THE CITIES OF CHRISTIANSTED, FREDERIKSTED,
FREDERIKSTED SOUTHEAST, AND GROVE PLACE
502 AM AST FRI JUL 18 2025
DATE FRI 07/18/25 SAT 07/19/25 SUN 07/20/25
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 84 86 92 75 79 82 83 86 92 76 79 82 83 85 91
TEMP 83 86 86 84 81 80 79 79 83 85 86 84 81 80 79 80 83 85 85 84 81
DEWPT 76 76 75 76 75 75 75 74 75 75 75 75 75 75 75 75 75 76 75 75 74
RH 80 72 70 77 82 85 88 85 77 72 70 74 82 85 88 85 77 75 72 74 79
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 14 16 14 14 14 14 12 11 12 12 13 12 11 13 12 12 14 16 14 12 13
CLOUDS CL SC FW FW FW SC SC SC CL SC B1 B1 B1 B1 SC SC SC SC SC SC SC
POP 12HR 20 30 50 30 20
QPF 12HR 0.02 0.04-0.10 0.06-0.81 0.03-0.10 0.01-0.08
SNOW 12HR MM MM MM
RAIN SHWRS IS IS IS SC SC IS SC SC SC SC SC SC IS IS IS IS IS
TSTMS IS IS
OBVIS H H
HEAT INDEX 92 95 96 93 87 84 80 82 90 94 95 93 87 84 80 83 90 93 94 91 85
MAX HEAT 98 105 103 91 96 105 103 90 96 103 101
DATE MON 07/21/25 TUE 07/22/25 WED 07/23/25 THU 07/24/25
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 85 79 86 79 86 79 86
TEMP 79 83 85 81 79 83 86 81 79 84 86 82 79 83 86 81
DEWPT 74 74 74 75 75 76 76 75 75 76 76 76 76 76 76 76
PWIND DIR E E E E E E E E
WIND CHAR GN BZ BZ BZ BZ BZ BZ BZ
AVG CLOUDS SC FW SC SC SC SC SC SC SC SC SC SC SC SC SC SC
POP 12HR 20 20 20 10 20 20 20 20
RAIN SHWRS IS IS IS IS IS IS IS IS IS IS IS IS IS IS IS IS
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