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Issued by NWS San Juan, PR

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FOCA52 TJSJ 230100 AAA
PFMSJU

POINT FORECAST MATRICES...UPDATED
NATIONAL WEATHER SERVICE SAN JUAN PR
900 PM AST Sun Apr 22 2018

PRZ001-230845-
LUIS MUNOZ MARIN INTERNATIONAL AIRPORT-SAN JUAN
18.43N  66.00W ELEV. 9 FT
900 PM AST Sun Apr 22 2018

DATE           04/22/18      MON 04/23/18            TUE 04/24/18            WED
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          85          76
TEMP                77 76 76 81 85 86 83 79 77 76 76 81 80 80 80 77 77 76 76 79
DEWPT               71 70 70 70 70 71 71 71 71 70 70 71 70 71 71 71 71 70 70 71
RH                  82 82 82 69 61 61 67 77 82 82 82 72 72 74 74 82 82 82 82 77
WIND DIR             E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E SE SE  E
WIND SPD            11 10  9 12 16 17 14 11 12 11 12 14 16 17 16 12 11  9  9 13
CLOUDS              SC SC SC B2 B2 SC SC SC SC B2 B2 SC SC SC SC SC SC SC SC FW
POP 12HR                     60          60          60          40          20
QPF 12HR                   0.19        0.61        0.32        0.24        0.04
RAIN SHWRS           C  C  C  L  L  C  C  C  C  L  L  C  C  C  C  S  S  S  S  S
TSTMS                               S  S                    S  S
HEAT INDEX                   85 90 91 88             85 83 83 83
MAX HEAT                     85    91    91          85    86    83


DATE           04/25  THU 04/26/18  FRI 04/27/18  SAT 04/28/18  SUN 04/29/18
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      76    89      76    88      76    88      75    87
TEMP          83 78   77 79 83 78   78 79 83 77   77 79 83 78   76 79 82 77
DEWPT         71 72   72 71 72 72   72 72 71 71   71 71 69 70   70 70 69 70
PWIND DIR         E       E    SE      SE     E       E     E       E     E
WIND CHAR        BZ      GN    GN      GN    GN      GN    GN      GN    GN
AVG CLOUDS    FW SC   SC SC SC SC   SC SC SC FW   SC SC FW FW   FW FW FW SC
POP 12HR         20      40    40      20    20      20    10      10    20
RAIN SHWRS     S  S    S  C  C  C    S  S  S  S    S  S  S  S    S  S  S  S

$$

PRZ002-230845-
ROOSEVELT ROADS NAVAL AIRSTATION-CEIBA PR
18.25N  65.63W ELEV. 39 FT
900 PM AST Sun Apr 22 2018

DATE           04/22/18      MON 04/23/18            TUE 04/24/18            WED
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          76          85          76
TEMP                78 77 77 81 84 85 82 79 78 77 77 81 79 80 79 77 77 76 76 78
DEWPT               71 71 71 71 72 72 71 71 71 71 71 71 72 72 72 71 71 71 71 71
RH                  79 82 82 72 67 65 69 77 79 82 82 72 79 77 79 82 82 85 85 79
WIND DIR             E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E
WIND SPD            14 13 13 13 16 16 16 14 14 13 12 14 13 13 13 13 13 12 12 13
CLOUDS              SC SC SC B2 B2 SC SC SC SC B2 B2 SC SC SC SC SC SC SC SC FW
POP 12HR                     60          60          60          40          20
QPF 12HR                   0.19        0.46        0.32        0.24        0.04
RAIN SHWRS           C  C  C  L  L  C  C  C  C  L  L  C  C  C  C  S  S  S  S  S
HEAT INDEX                   85 90 91 86             85    84
MAX HEAT         83          85    91    91          85    86    84


DATE           04/25  THU 04/26/18  FRI 04/27/18  SAT 04/28/18  SUN 04/29/18
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      76    86      76    86      76    87      75    86
TEMP          82 78   76 79 81 78   77 79 81 77   77 78 81 77   76 78 81 77
DEWPT         72 72   72 72 73 73   72 71 72 70   71 71 70 70   70 71 70 70
PWIND DIR         E       E    SE       E     E       E     E       E     E
WIND CHAR        BZ      GN    GN      GN    GN      GN    GN      GN    GN
AVG CLOUDS    FW SC   SC SC SC SC   SC SC SC FW   SC SC SC FW   FW FW SC SC
POP 12HR         40      40    40      20    20      20    20      20    20
RAIN SHWRS     S  C    C  C  C  C    S  S  S  S    S  S  S  S    S  S  S  S

$$

PRZ007-230845-
MERCEDITA AIRPORT-PONCE PR
18.02N  66.56W ELEV. 26 FT
900 PM AST Sun Apr 22 2018

DATE           04/22/18      MON 04/23/18            TUE 04/24/18            WED
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                      71          90          70          89          70
TEMP                75 72 72 82 88 90 84 77 74 71 71 81 86 86 83 75 73 73 72 79
DEWPT               68 68 68 68 67 67 68 69 69 68 68 68 66 67 68 69 69 69 68 68
RH                  79 87 87 63 50 47 59 76 84 90 90 65 51 53 61 82 87 87 87 69
WIND DIR            NE NE NE  E SE SE SE  E NE NE NE  E SE SE SE  E NE NE NE  E
WIND SPD             8  8  9 12 16 17 16  9  8  8  9 13 16 18 17 11  8 10 10 12
CLOUDS              SC SC SC SC SC FW FW SC SC FW FW FW FW SC SC SC SC FW FW SC
POP 12HR                     20          40          40          40          20
QPF 12HR                   0.01        0.05        0.11        0.18        0.02
RAIN SHWRS           S        S  S        C  C  S  S  S  S  C  C  S  S  S  S  S
HEAT INDEX                   85 91 93 87             84 88 89 86
MAX HEAT                     85    93    92          84    89    88


DATE           04/25  THU 04/26/18  FRI 04/27/18  SAT 04/28/18  SUN 04/29/18
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      70    92      70    90      70    91      69    90
TEMP          87 75   73 80 87 76   75 80 88 76   72 80 86 74   72 79 86 74
DEWPT         68 70   70 70 69 71   70 70 67 70   68 69 67 67   67 67 65 69
PWIND DIR        SE       E    SE       E    SE       E     E       E     E
WIND CHAR        BZ      GN    GN      GN    GN      LT    GN      LT    GN
AVG CLOUDS    SC SC   FW SC SC FW   FW FW FW FW   FW FW FW FW   FW FW SC B1
POP 12HR         20      40    40      10    10      10    10      10    50
RAIN SHWRS     S  S    S  C  C  S    S  S  S  S    S  S  S  S    S  S  C  C

$$

PRZ008-230845-
RAFAEL HERNANDEZ AIRPORT-AGUADILLA PR
18.50N  67.13W ELEV. 237 FT
900 PM AST Sun Apr 22 2018

DATE           04/22/18      MON 04/23/18            TUE 04/24/18            WED
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          84          74          85          73
TEMP                76 75 75 80 83 84 81 78 76 75 75 80 81 81 79 77 77 76 76 78
DEWPT               70 70 70 70 71 71 71 71 71 70 70 71 71 72 71 71 71 70 70 70
RH                  82 84 84 72 67 65 72 79 85 84 84 74 72 74 77 82 82 82 82 76
WIND DIR             E  E  E  E  E  E SE  E  E  E  E  E  E  E  E  E  E  E  E  E
WIND SPD            14 12 11 13 17 19 16 14 16 14 14 17 18 19 14 14 13 12 11 13
CLOUDS              SC B2 B2 SC SC B1 B1 B2 B2 FW FW FW FW SC SC SC SC FW FW SC
POP 12HR                     20          60          60          40          20
QPF 12HR                   0.02        0.72        0.24        0.18        0.02
RAIN SHWRS           S  S  S  S  S  C  C  L  L  S  S  S  S  C  C  S  S  S  S  S
TSTMS                               S  S  S  S              S  S
HEAT INDEX                   83 88 89 85             83 85 85
MAX HEAT                     83    89    89          83    86    84


DATE           04/25  THU 04/26/18  FRI 04/27/18  SAT 04/28/18  SUN 04/29/18
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      74    85      74    85      74    85      74    85
TEMP          82 79   77 78 83 79   77 79 83 79   76 78 82 79   76 77 81 78
DEWPT         72 72   71 71 71 73   71 71 71 72   69 70 71 70   69 69 71 71
PWIND DIR         E       E     E       E    NE       E     E       E    NE
WIND CHAR        GN      GN    LT      GN    GN      GN    GN      GN    GN
AVG CLOUDS    SC B1   FW FW SC B1   FW FW FW SC   SC SC SC SC   SC SC SC B1
POP 12HR         70      20    70      10    20      20    40      20    50
RAIN SHWRS     L  L    S  S  L  L    S  S  S  S    S  S  C  C    S  S  C  C
TSTMS          S  S          S  S

$$

PRZ010-230845-
EUGENIO MARIA DE HOSTO AIRPORT-MAYAGUEZ PR
18.27N  67.15W ELEV. 28 FT
900 PM AST Sun Apr 22 2018

DATE           04/22/18      MON 04/23/18            TUE 04/24/18            WED
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                      72          85          72          85          72
TEMP                75 73 73 79 84 85 81 77 75 73 73 79 84 82 80 76 75 74 73 77
DEWPT               69 69 69 69 70 68 70 70 70 69 69 69 70 70 71 71 70 69 69 69
RH                  82 87 87 72 63 57 69 79 84 87 87 72 63 67 74 85 84 84 87 76
WIND DIR             E  E NE  E  W  W  E  N  E  E  E  E  E  W  N  E  E  E NE  E
WIND SPD            10 10  9 10  5  5  9  5  8  8 11 13  9  5  3  3 10 10 10 10
CLOUDS              SC B2 B2 FW FW B2 B2 B2 B2 FW FW FW FW OV OV SC SC FW FW SC
POP 12HR                     20          60          60          70          40
QPF 12HR                   0.01        1.03        0.24        0.49        0.07
RAIN SHWRS           S        S  S  L  L  L  L  S  S  S  S  L  L  C  C  S  S  S
TSTMS                               C  C  S  S              S  S
HEAT INDEX                      88 88 85                88 86 83
MAX HEAT                           89    88                88    85


DATE           04/25  THU 04/26/18  FRI 04/27/18  SAT 04/28/18  SUN 04/29/18
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      72    87      72    84      72    85      71    84
TEMP          83 77   75 79 85 78   76 79 84 78   74 78 82 77   73 77 82 77
DEWPT         70 71   70 71 71 72   71 71 69 71   68 70 69 70   68 69 69 70
PWIND DIR        SE       E    SE      SE    SE      SE    SE       E    NE
WIND CHAR        LT      LT    LT      GN    LT      LT    LT      LT    LT
AVG CLOUDS    SC SC   FW FW SC SC   FW FW SC SC   FW FW SC SC   FW FW SC B1
POP 12HR         40      20    40      10    40      10    40      10    50
RAIN SHWRS     C  C    S  S  C  C    S  S  C  C    S  S  C  C    S  S  C  C
TSTMS          S  S                        S  S          S  S

$$

VIZ001-230845-
CYRIL E. KING AIRPORT-ST THOMAS USVI
18.33N  64.97W ELEV. 23 FT
900 PM AST Sun Apr 22 2018

DATE           04/22/18      MON 04/23/18            TUE 04/24/18            WED
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          86          75          86          77
TEMP                78 77 77 82 85 86 83 79 77 76 76 81 78 79 78 78 78 78 78 78
DEWPT               71 71 70 71 71 71 71 71 71 70 70 70 71 71 71 71 71 71 71 71
RH                  79 82 79 69 63 61 67 77 82 82 82 69 79 77 79 79 79 79 79 79
WIND DIR             E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E
WIND SPD            17 16 17 19 18 18 17 17 17 16 16 17 16 16 16 16 17 17 16 17
CLOUDS              SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC FW FW SC SC FW
POP 12HR                     50          40          40          20          20
QPF 12HR                   0.16        0.40        0.11        0.04        0.03
RAIN SHWRS           C  C  C  C  C  C  C  C  C  S  S  S  S  S  S  S  S  S  S  S
HEAT INDEX                   86 90 91 88             85
MAX HEAT         83          86    91    91          85    87


DATE           04/25  THU 04/26/18  FRI 04/27/18  SAT 04/28/18  SUN 04/29/18
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    86      77    86      75    86      76    86
TEMP          79 79   79 79 80 80   79 79 79 79   78 78 79 79   78 78 78 79
DEWPT         72 72   72 72 72 72   72 71 71 70   71 70 70 70   70 70 70 70
PWIND DIR         E       E     E       E     E       E     E       E     E
WIND CHAR        BZ      BZ    BZ      BZ    BZ      BZ    GN      GN    GN
AVG CLOUDS    FW SC   SC SC SC FW   SC SC SC FW   SC SC SC FW   FW FW SC SC
POP 12HR         40      40    40      20    20      20    20      20    20
RAIN SHWRS     S  C    C  C  C  S    S  S  S  S    S  S  S  S    S  S  S  S

$$

VIZ002-230845-
HENRY E. ROHLSEN AIRPORT-ST CROIX USVI
17.70N  64.80W ELEV. 74 FT
900 PM AST Sun Apr 22 2018

DATE           04/22/18      MON 04/23/18            TUE 04/24/18            WED
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          87          74          86          75
TEMP                77 75 75 81 86 87 83 79 77 75 75 81 80 80 80 80 80 79 79 79
DEWPT               72 72 72 72 72 72 72 72 72 72 72 72 72 72 72 73 72 72 72 72
RH                  85 90 90 74 63 61 70 79 85 90 90 74 77 77 77 79 77 79 79 79
WIND DIR             E  E  E  E  E  E  E  E  E  E NE  E  E  E  E  E  E  E  E  E
WIND SPD            14 13 13 17 17 16 16 16 14 13 16 17 16 16 16 14 16 16 16 17
CLOUDS              FW SC SC SC SC SC SC SC SC SC SC SC SC SC SC FW FW FW FW SC
POP 12HR                     40          30          40          20          20
QPF 12HR                   0.14        0.33        0.13        0.04        0.02
RAIN SHWRS           C  C  C  S  S  C  C  S  S  C  C  S  S  S  S  S  S  S  S  S
HEAT INDEX                   85 92 94 88             85 84 84 84 84 84
MAX HEAT                     85    94    94          85    87    84    84


DATE           04/25  THU 04/26/18  FRI 04/27/18  SAT 04/28/18  SUN 04/29/18
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      76    87      76    88      75    87      74    87
TEMP          80 80   80 80 81 80   80 80 80 80   79 79 80 80   79 79 80 80
DEWPT         73 74   73 73 74 73   73 72 72 72   72 71 71 72   71 71 71 72
PWIND DIR         E       E     E       E     E       E     E       E     E
WIND CHAR        BZ      BZ    BZ      BZ    BZ      BZ    BZ      BZ    GN
AVG CLOUDS    SC SC   SC SC SC SC   SC SC SC FW   SC SC SC FW   FW FW SC SC
POP 12HR         40      40    40      20    20      20    20      20    20
RAIN SHWRS     S  C    C  C  C  S    S  S  S  S    S  S  S  S    S  S  S  S

$$



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