Point Forecast Matrices
Issued by NWS San Juan, PR

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FOCA52 TJSJ 270008 AAA
PFMSJU

POINT FORECAST MATRICES...UPDATED
NATIONAL WEATHER SERVICE SAN JUAN PR
808 PM AST Thu Apr 26 2018

PRZ001-270130-
LUIS MUNOZ MARIN INTERNATIONAL AIRPORT-SAN JUAN
18.43N  66.00W ELEV. 9 FT
808 PM AST Thu Apr 26 2018

DATE             THU 04/26/18            FRI 04/27/18            SAT 04/28/18
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          89          76          87
TEMP                            79 77 77 83 88 89 85 81 79 77 77 82 86 87 84 80
DEWPT                           72 71 71 71 70 69 71 69 70 69 69 69 69 71 69 70
RH                              79 82 82 67 55 52 63 67 74 76 76 65 57 59 61 72
WIND DIR                         E  E  E  E  E  E  E  E  E SE SE  E  E  E  E  E
WIND SPD                         9 10 10 11 12 14 13 11 11 10 10 11 13 14 14 12
CLOUDS                          FW FW FW CL CL FW FW FW FW SC SC SC SC FW FW SC
POP 12HR                                 20          10          20          20
QPF 12HR                               0.01        0.04        0.02        0.02
RAIN SHWRS                       S  S  S        S  S  S  S  S  S  S  S  S  S  S
TSTMS
HEAT INDEX                               88 93 94 90 84          85 90 93 88 83
MAX HEAT                     86    84    88    94    94    83    85    93    92


DATE          SUN 04/29/18  MON 04/30/18  TUE 05/01/18  WED 05/02/18
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      77    86      77    84
TEMP          77 82 87 81   78 82 86 80   77 82 86 80   77 81 84 79
DEWPT         72 70 70 71   70 70 69 70   69 70 70 71   71 71 71 71
PWIND DIR         E     E       E     E       E     E       E     E
WIND CHAR        GN    GN      GN    GN      GN    GN      GN    GN
AVG CLOUDS    SC SC FW FW   SC SC FW FW   SC SC SC SC   SC SC SC SC
POP 12HR         40    20      20    20      40    40      40    40
RAIN SHWRS     C  C  S  S    S  S  S  S    S  C  C  C    C  C  C  C

$$

PRZ002-270130-
ROOSEVELT ROADS NAVAL AIRSTATION-CEIBA PR
18.25N  65.63W ELEV. 39 FT
808 PM AST Thu Apr 26 2018

DATE             THU 04/26/18            FRI 04/27/18            SAT 04/28/18
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                                  77          87          77          85
TEMP                            79 78 78 83 86 87 84 81 79 78 77 81 84 85 83 81
DEWPT                           71 72 72 71 71 73 71 70 70 70 70 67 71 72 70 70
RH                              77 82 82 67 61 63 65 69 74 76 79 63 65 65 65 69
WIND DIR                         E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E
WIND SPD                        12 11 11 12 12 13 12 12 12 11 11 13 14 13 13 12
CLOUDS                          SC FW FW CL CL CL CL FW FW SC SC SC SC FW FW SC
POP 12HR                                 30          10          20          20
QPF 12HR                               0.02           0        0.02        0.02
RAIN SHWRS                       C  S  S              S  S  S  S  S  S  S  S  S
TSTMS
HEAT INDEX                               88 91 94 89 85          83 89 91 87 85
MAX HEAT                     86    84    88    94    94    83    83    91    90


DATE          SUN 04/29/18  MON 04/30/18  TUE 05/01/18  WED 05/02/18
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          78    85      76    84      76    84      76    83
TEMP          78 82 85 79   77 80 84 79   76 81 84 79   76 80 83 78
DEWPT         74 70 71 71   71 70 70 71   70 71 71 71   71 71 72 71
PWIND DIR         E     E       E     E       E     E       E     E
WIND CHAR        GN    GN      GN    GN      GN    GN      GN    GN
AVG CLOUDS    SC SC FW FW   SC SC FW FW   SC SC SC SC   SC SC SC SC
POP 12HR         40    20      20    20      40    40      40    40
RAIN SHWRS     C  C  S  S    S  S  S  S    S  C  C  C    C  C  C  C

$$

PRZ007-270130-
MERCEDITA AIRPORT-PONCE PR
18.02N  66.56W ELEV. 26 FT
808 PM AST Thu Apr 26 2018

DATE             THU 04/26/18            FRI 04/27/18            SAT 04/28/18
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                                  73          91          73          89
TEMP                            77 74 74 83 89 91 86 79 77 74 74 82 87 89 85 79
DEWPT                           73 71 70 71 70 72 71 71 70 68 66 69 71 70 71 69
RH                              87 90 87 67 54 54 61 77 79 82 76 65 59 54 63 72
WIND DIR                         E  E  E  E SE SE SE  E  E  E  E  E SE SE  E  E
WIND SPD                         5  6  6  9 12 12 11  8  6  6  6  9 12 12 11  8
CLOUDS                          FW FW FW CL CL CL CL FW FW FW FW FW FW FW FW FW
POP 12HR                                 20          10          10          10
QPF 12HR                               0.01           0        0.02        0.03
RAIN SHWRS                       S  S  S              S  S  S  S  S  S  S  S  S
TSTMS
HEAT INDEX                               88 94 99 91             85 93 94 90
MAX HEAT                                 88    99    97          85    94    94


DATE          SUN 04/29/18  MON 04/30/18  TUE 05/01/18  WED 05/02/18
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    89      73    89      73    89      73    90
TEMP          74 82 89 79   74 82 89 78   73 82 89 78   73 83 90 79
DEWPT         66 69 67 68   68 68 63 68   67 67 65 68   69 68 67 68
PWIND DIR         E     E       E     E       E     E      NE     E
WIND CHAR        LT    GN      LT    GN      LT    GN      LT    GN
AVG CLOUDS    FW SC FW FW   FW FW FW FW   FW FW FW SC   FW FW SC SC
POP 12HR         20    10      10    10      10    20      10    40
RAIN SHWRS     S  S  S  S    S  S  S  S    S  S  S  S    S  S  C  C

$$

PRZ008-270130-
RAFAEL HERNANDEZ AIRPORT-AGUADILLA PR
18.50N  67.13W ELEV. 237 FT
808 PM AST Thu Apr 26 2018

DATE             THU 04/26/18            FRI 04/27/18            SAT 04/28/18
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          87          75          85
TEMP                            78 77 77 82 86 87 84 79 77 76 76 81 84 85 83 80
DEWPT                           72 71 70 71 72 74 73 73 70 68 67 69 71 72 73 72
RH                              82 82 79 69 63 65 70 82 79 76 74 67 65 65 72 77
WIND DIR                         E  E  E  E  E NE  E  E  E  E  E  E  E NE  E  E
WIND SPD                         8  9  9  8  8 10 10 11 12  9  6  8  8 10 10 12
CLOUDS                          SC FW FW CL CL B1 B1 SC SC FW FW FW FW B1 B1 FW
POP 12HR                                 40          60          20          50
QPF 12HR                               0.02        0.41        0.04        0.17
RAIN SHWRS                       C  S  S        L  L  S  S  S  S  S  S  C  C  S
TSTMS                                                                   S  S
HEAT INDEX                               86 92 95 90             84 89 91 89 84
MAX HEAT                     83          86    95    95          84    91    91


DATE          SUN 04/29/18  MON 04/30/18  TUE 05/01/18  WED 05/02/18
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          77    85      77    84      77    84      77    84
TEMP          77 81 85 80   77 81 84 79   77 81 84 79   77 81 84 79
DEWPT         69 70 71 71   70 69 71 71   70 69 71 72   71 71 72 71
PWIND DIR         E     E       E    NE       E     E       E     E
WIND CHAR        GN    GN      GN    GN      GN    BZ      BZ    BZ
AVG CLOUDS    FW FW FW FW   FW FW FW FW   FW FW FW SC   SC SC SC SC
POP 12HR         10    10      10    10      10    40      40    40
RAIN SHWRS     S  S  S  S    S  S  S  S    S  S  S  C    C  C  C  C

$$

PRZ010-270130-
EUGENIO MARIA DE HOSTO AIRPORT-MAYAGUEZ PR
18.27N  67.15W ELEV. 28 FT
808 PM AST Thu Apr 26 2018

DATE             THU 04/26/18            FRI 04/27/18            SAT 04/28/18
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                                  73          89          72          86
TEMP                            76 74 74 82 87 89 84 78 75 73 73 80 84 86 82 78
DEWPT                           73 73 70 71 74 74 75 74 73 68 65 68 69 71 72 72
RH                              90 97 87 69 65 61 74 88 94 84 76 67 61 61 72 82
WIND DIR                         E  E  E  E SE SE SE SE  E  E  E  E SE SE SE SE
WIND SPD                         5  6  8  6  6  5  5  8  8  6  6  6  5  4  5  8
CLOUDS                          FW FW FW CL CL FW FW FW FW FW FW FW FW B1 B1 FW
POP 12HR                                 10          10          10          50
QPF 12HR                                  0        0.08        0.02        0.17
RAIN SHWRS                       S  S  S        S  S  S  S  S  S  S  S  C  C  S
TSTMS                                                                   S  S
HEAT INDEX                               86 95 98 92             83 88 91 87
MAX HEAT                                 86    98    97          83    91    91


DATE          SUN 04/29/18  MON 04/30/18  TUE 05/01/18  WED 05/02/18
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    86      73    85      73    85      73    85
TEMP          74 80 86 78   74 80 85 77   73 80 85 77   73 80 85 77
DEWPT         68 69 68 70   69 69 68 70   69 69 69 71   70 70 71 70
PWIND DIR         E     E       E     E       E    NE       E    NE
WIND CHAR        LT    LT      LT    LT      LT    LT      GN    GN
AVG CLOUDS    FW FW SC SC   FW FW SC SC   FW FW SC SC   FW FW SC SC
POP 12HR         10    50      10    50      10    50      20    50
RAIN SHWRS     S  S  C  C    S  S  C  C    S  S  C  C    S  S  C  C
TSTMS                S  S          S  S          S  S          S  S

$$

VIZ001-270130-
CYRIL E. KING AIRPORT-ST THOMAS USVI
18.33N  64.97W ELEV. 23 FT
808 PM AST Thu Apr 26 2018

DATE             THU 04/26/18            FRI 04/27/18            SAT 04/28/18
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          76          86
TEMP                            78 77 77 82 85 86 83 80 78 77 77 82 85 86 84 81
DEWPT                           73 73 73 72 73 72 71 71 72 72 70 70 71 70 70 71
RH                              85 87 87 72 67 63 67 74 82 85 79 67 63 59 63 72
WIND DIR                         E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E
WIND SPD                        17 17 17 16 16 16 17 17 17 17 16 18 17 17 16 17
CLOUDS                          FW FW FW CL CL CL CL FW FW SC SC SC SC FW FW SC
POP 12HR                                 10          10          20          20
QPF 12HR                                  0           0        0.02        0.02
RAIN SHWRS                       S  S  S              S  S  S  S  S  S  S  S  S
TSTMS
HEAT INDEX                               87 92 92 88 83          86 90 91 88 85
MAX HEAT                     84          87    93    92          86    91    91


DATE          SUN 04/29/18  MON 04/30/18  TUE 05/01/18  WED 05/02/18
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          78    86      77    85      77    85      77    85
TEMP          78 82 86 80   78 81 85 80   77 82 85 80   77 82 85 80
DEWPT         71 71 70 71   70 69 70 70   71 71 71 72   71 71 71 71
PWIND DIR         E     E       E     E       E     E       E     E
WIND CHAR        BZ    BZ      BZ    BZ      BZ    BZ      BZ    BZ
AVG CLOUDS    SC SC FW FW   SC SC FW FW   SC SC SC SC   SC SC SC SC
POP 12HR         40    20      20    20      40    40      40    40
RAIN SHWRS     C  C  S  S    S  S  S  S    S  C  C  C    C  C  C  C

$$

VIZ002-270130-
HENRY E. ROHLSEN AIRPORT-ST CROIX USVI
17.70N  64.80W ELEV. 74 FT
808 PM AST Thu Apr 26 2018

DATE             THU 04/26/18            FRI 04/27/18            SAT 04/28/18
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          86          74          86
TEMP                            76 75 75 81 85 86 83 78 76 75 75 81 85 86 83 80
DEWPT                           70 72 72 70 72 70 69 69 68 67 68 72 72 70 68 68
RH                              82 90 90 69 65 59 63 74 76 76 79 74 65 59 61 67
WIND DIR                         E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E
WIND SPD                        17 17 17 17 17 17 17 18 18 17 17 18 17 17 17 18
CLOUDS                          FW FW FW CL CL CL CL FW FW SC SC SC SC FW FW SC
POP 12HR                                 10          10          20          20
QPF 12HR                                  0           0        0.02        0.02
RAIN SHWRS                       S  S  S              S  S  S  S  S  S  S  S  S
TSTMS
HEAT INDEX                               85 91 91 87             85 91 91 86 83
MAX HEAT                                 85    92    91          85    91    90


DATE          SUN 04/29/18  MON 04/30/18  TUE 05/01/18  WED 05/02/18
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          77    86      77    85      77    85      77    85
TEMP          78 82 86 80   78 81 85 80   77 82 85 80   77 82 85 80
DEWPT         67 72 71 71   71 71 71 71   72 72 72 72   73 72 72 72
PWIND DIR         E     E       E     E       E     E       E     E
WIND CHAR        BZ    BZ      BZ    BZ      BZ    BZ      BZ    BZ
AVG CLOUDS    SC SC FW FW   SC SC FW FW   SC SC SC SC   SC SC SC SC
POP 12HR         20    20      20    20      40    40      40    40
RAIN SHWRS     S  S  S  S    S  S  S  S    S  C  C  C    C  C  C  S

$$



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