Point Forecast Matrices
Issued by NWS San Juan, PR

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102
FOCA52 TJSJ 150810
PFMSJU

POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE SAN JUAN PR
410 AM AST Fri Dec 15 2017

PRZ001-152045-
LUIS MUNOZ MARIN INTERNATIONAL AIRPORT-SAN JUAN
18.43N  66.00W ELEV. 9 FT
410 AM AST Fri Dec 15 2017

DATE             FRI 12/15/17            SAT 12/16/17            SUN 12/17/17
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          75          85          76          84
TEMP          75 79 85 86 81 78 77 76 75 79 84 85 81 79 78 77 76 79 83 84 80 78
DEWPT         70 71 70 71 71 71 71 71 72 73 72 72 73 72 72 72 72 71 70 71 72 72
RH            84 77 61 61 72 79 82 85 90 82 67 65 77 79 82 85 87 77 65 65 77 82
WIND DIR       E  E  E  E  E  E  E  E  E  E  E  E NE NE  E  E  E  E  E NE NE NE
WIND SPD      11 10  9 13 12 11 11 11 11 12 16 14 13 14 13 14 16 17 17 18 17 17
CLOUDS        SC FW FW FW FW SC SC SC SC FW FW SC SC SC SC SC SC SC SC FW FW SC
POP 12HR                     10          20          30          20          30
QPF 12HR                   0.01        0.01        0.04        0.04        0.02
RAIN SHWRS     C        S  S  S  S  S  S  S  S  C  C  S  S  S  S  S  S  S  S  C
HEAT INDEX          90 91 85                90 91 86                87 89 84
MAX HEAT               91    89                91    90                89    88


DATE          MON 12/18/17  TUE 12/19/17  WED 12/20/17  THU 12/21/17
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      74    84      74    85      74    84
TEMP          77 79 84 77   75 78 84 77   75 78 85 77   75 78 84 77
DEWPT         72 72 72 72   72 72 73 72   71 72 72 72   71 72 71 70
PWIND DIR        NE     E       E     E       E     E       E     E
WIND CHAR        BZ    BZ      GN    GN      GN    GN      GN    GN
AVG CLOUDS    SC SC B1 B1   SC SC SC SC   SC SC SC SC   SC SC SC SC
POP 12HR         30    50      30    30      30    30      30    30
RAIN SHWRS     C  C  C  C    C  C  C  C    C  C  C  S    C  C  C  S

$$

PRZ002-152045-
ROOSEVELT ROADS NAVAL AIRSTATION-CEIBA PR
18.25N  65.63W ELEV. 39 FT
410 AM AST Fri Dec 15 2017

DATE             FRI 12/15/17            SAT 12/16/17            SUN 12/17/17
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                      85          76          86          78          85
TEMP          74 78 84 85 81 79 78 77 76 80 85 86 82 80 79 79 78 81 84 85 81 79
DEWPT         71 71 71 72 72 71 71 72 72 73 73 72 73 72 71 71 71 71 70 71 72 72
RH            90 79 65 65 74 77 79 85 87 79 67 63 74 77 77 77 79 72 63 63 74 79
WIND DIR       E  E  E  E  E  E  E  E  E  E  E NE NE  E NE NE NE NE NE NE NE NE
WIND SPD      11 10 12 13 11 12 11 12 13 12 14 13 14 14 14 16 16 16 17 17 16 17
CLOUDS        SC FW FW SC SC SC SC SC SC FW FW SC SC SC SC SC SC SC SC FW FW SC
POP 12HR                     30          20          30          20          30
QPF 12HR                   0.02        0.01        0.04        0.04        0.02
RAIN SHWRS     C        C  C  S  S  S  S  S  S  C  C  S  S  S  S  S  S  S  S  C
HEAT INDEX          89 91 85             84 92 92 87 84          85 88 90 85
MAX HEAT               91    90          84    93    91    84    85    90    89


DATE          MON 12/18/17  TUE 12/19/17  WED 12/20/17  THU 12/21/17
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    84      76    84      76    84      76    84
TEMP          78 80 84 78   77 79 84 78   77 79 84 78   77 79 84 78
DEWPT         72 73 73 72   72 72 73 72   72 72 72 72   71 72 72 71
PWIND DIR        NE    NE       E     E       E     E       E    NE
WIND CHAR        BZ    BZ      GN    GN      GN    GN      GN    GN
AVG CLOUDS    SC SC B1 B1   SC SC SC SC   SC SC SC SC   SC SC SC SC
POP 12HR         30    50      30    30      30    30      30    30
RAIN SHWRS     C  C  C  C    C  C  C  C    C  C  C  S    C  C  C  S

$$

PRZ007-152045-
MERCEDITA AIRPORT-PONCE PR
18.02N  66.56W ELEV. 26 FT
410 AM AST Fri Dec 15 2017

DATE             FRI 12/15/17            SAT 12/16/17            SUN 12/17/17
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          71          87          72          87
TEMP          71 77 85 87 79 76 74 72 71 77 85 87 79 76 75 73 72 78 85 87 79 76
DEWPT         67 69 67 67 69 68 68 68 68 70 70 68 69 70 70 69 69 69 67 64 68 69
RH            87 76 55 52 72 76 82 87 90 79 61 53 72 82 84 87 90 74 55 46 69 79
WIND DIR      NE NE  E  E  E NE NE  N  N NE  E  E NE NE NE NE NE NE NE NE NE NE
WIND SPD       4  5  9 10  8  5  5  5  5  5 10 10  8  8  6  6  8  9 13 12 11 10
CLOUDS        FW FW FW FW FW FW FW FW FW FW FW FW FW FW FW FW FW FW FW FW FW FW
POP 12HR                     10           5          10           5          10
QPF 12HR                   0.01           0        0.01           0           0
RAIN SHWRS              S  S                    S  S                          S
HEAT INDEX          88 90                   90 91                   88 88
MAX HEAT               90    87                91    88                89    87


DATE          MON 12/18/17  TUE 12/19/17  WED 12/20/17  THU 12/21/17
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          72    87      67    87      67    87      67    87
TEMP          73 78 86 73   68 75 86 73   68 75 86 73   68 75 86 73
DEWPT         69 70 71 69   68 70 69 70   68 70 69 69   68 69 70 68
PWIND DIR        NE    NE      NE    NE      NE     E      NE    NE
WIND CHAR        GN    GN      LT    GN      LT    LT      LT    LT
AVG CLOUDS    FW FW FW FW   FW FW FW FW   FW FW FW FW   FW FW FW FW
POP 12HR         10    10      10    10      10    10      10    10
RAIN SHWRS     S  S  S  S    S  S  S  S    S  S  S  S    S  S  S  S

$$

PRZ008-152045-
RAFAEL HERNANDEZ AIRPORT-AGUADILLA PR
18.50N  67.13W ELEV. 237 FT
410 AM AST Fri Dec 15 2017

DATE             FRI 12/15/17            SAT 12/16/17            SUN 12/17/17
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          76          83          77          82
TEMP          76 79 83 84 80 78 77 77 76 79 82 83 80 78 78 77 77 79 81 82 79 78
DEWPT         70 70 70 72 72 71 70 71 71 72 73 73 73 73 73 72 72 72 72 72 72 71
RH            82 74 65 67 77 79 79 82 85 79 74 72 79 85 85 85 85 79 74 72 79 79
WIND DIR       E  E  E NE  E  E  E  E  E  E  E NE NE  E  E  E  E  E NE  E NE NE
WIND SPD      13 13 12 13 16 14 13 14 14 16 18 20 19 19 20 19 20 21 23 24 23 23
CLOUDS        SC FW FW FW FW FW FW FW FW FW FW FW FW SC SC SC SC SC SC FW FW SC
POP 12HR                      5          10           5          20          20
QPF 12HR                      0        0.01        0.01        0.04        0.01
RAIN SHWRS     S              S  S  S  S  S  S        S  S  S  S  S  S  S  S  S
HEAT INDEX          87 90 84                87 89 84                85 87
MAX HEAT               90    88                89    87                87    85


DATE          MON 12/18/17  TUE 12/19/17  WED 12/20/17  THU 12/21/17
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    83      76    83      76    84      76    83
TEMP          77 79 83 78   76 79 83 78   76 79 84 78   77 79 83 78
DEWPT         71 72 73 72   72 72 73 72   71 71 72 72   72 71 72 71
PWIND DIR        NE     E       E     E       E     E       E     E
WIND CHAR        BZ    BZ      BZ    BZ      BZ    GN      GN    BZ
AVG CLOUDS    SC SC SC SC   SC SC FW FW   SC SC SC FW   SC SC SC FW
POP 12HR         20    20      20    20      20    20      20    20
RAIN SHWRS     S  S  S  S    S  S  S  S    S  S  S  S    S  S  S  S

$$

PRZ010-152045-
EUGENIO MARIA DE HOSTO AIRPORT-MAYAGUEZ PR
18.27N  67.15W ELEV. 28 FT
410 AM AST Fri Dec 15 2017

DATE             FRI 12/15/17            SAT 12/16/17            SUN 12/17/17
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                      85          72          85          73          84
TEMP          72 77 83 84 78 76 74 73 72 77 84 85 79 76 75 73 73 77 82 83 78 76
DEWPT         69 69 68 69 71 70 69 69 70 71 72 72 72 71 72 71 71 71 70 70 71 70
RH            90 76 61 61 79 82 84 87 93 82 67 65 79 85 90 93 93 82 67 65 79 82
WIND DIR       E  E  E NE NE  E  E NE  E  E NE NE NE NE NE NE NE NE NE NE NE NE
WIND SPD       8  6  6  5  6  8  8  8  9  9 11 13 14 14 14 12 13 14 17 17 18 18
CLOUDS        FW FW FW SC SC FW FW FW FW FW FW FW FW FW FW FW FW FW FW FW FW SC
POP 12HR                     30           5           5          10          20
QPF 12HR                   0.02           0           0           0        0.01
RAIN SHWRS              C  C                                S  S  S  S  S  S  S
HEAT INDEX          86 88                   90 91                   86 87
MAX HEAT               88    87                91    88                88    86


DATE          MON 12/18/17  TUE 12/19/17  WED 12/20/17  THU 12/21/17
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    84      69    84      69    84      69    84
TEMP          73 77 84 73   70 75 84 73   70 75 84 73   70 75 84 73
DEWPT         70 71 72 71   70 71 72 71   70 70 71 71   70 70 72 69
PWIND DIR        NE    NE       E    NE       E    NE       E    NE
WIND CHAR        BZ    BZ      GN    GN      GN    LT      GN    GN
AVG CLOUDS    SC SC SC SC   FW FW FW FW   FW FW FW FW   FW FW FW FW
POP 12HR         20    20      10    10      10    10      10    10
RAIN SHWRS     S  S  S  S    S  S  S  S    S  S  S  S    S  S  S  S

$$

VIZ001-152045-
CYRIL E. KING AIRPORT-ST THOMAS USVI
18.33N  64.97W ELEV. 23 FT
410 AM AST Fri Dec 15 2017

DATE             FRI 12/15/17            SAT 12/16/17            SUN 12/17/17
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          86          75          87
TEMP          75 79 85 86 81 79 78 77 76 80 85 86 81 78 77 76 75 80 86 87 82 79
DEWPT         70 70 71 71 71 71 72 72 72 72 72 72 72 71 70 71 70 70 71 71 72 72
RH            84 74 63 61 72 77 82 85 87 77 65 63 74 79 79 85 84 72 61 59 72 79
WIND DIR       E  E  E  E  E  E  E  E  E  E NE NE  E  E NE NE NE NE NE NE NE NE
WIND SPD      16 16 18 17 17 18 18 19 19 19 19 18 20 21 21 23 23 21 21 23 24 25
CLOUDS        SC FW FW FW FW SC SC SC SC FW FW SC SC SC SC SC SC SC SC FW FW SC
POP 12HR                     10          20          30          20          30
QPF 12HR                   0.01        0.01        0.04        0.04        0.03
RAIN SHWRS     C        S  S  S  S  S  S  S  S  C  C  S  S  S  S  S  S  S  S  C
HEAT INDEX          90 91 85             84 91 92 85             83 91 93 87
MAX HEAT               91    89          84    92    90          83    93    90


DATE          MON 12/18/17  TUE 12/19/17  WED 12/20/17  THU 12/21/17
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      77    85      77    85      77    85
TEMP          77 80 85 79   78 80 85 79   78 80 85 79   78 80 85 79
DEWPT         72 72 71 72   72 72 72 72   71 71 71 72   71 71 70 72
PWIND DIR        NE     E       E     E       E     E       E     E
WIND CHAR        WY    BZ      BZ    BZ      BZ    BZ      BZ    BZ
AVG CLOUDS    SC SC B1 B1   SC SC SC SC   SC SC SC SC   SC SC SC SC
POP 12HR         30    50      30    30      30    30      30    30
RAIN SHWRS     C  C  C  C    C  C  C  C    C  C  C  S    C  C  C  S

$$

VIZ002-152045-
HENRY E. ROHLSEN AIRPORT-ST CROIX USVI
17.70N  64.80W ELEV. 74 FT
410 AM AST Fri Dec 15 2017

DATE             FRI 12/15/17            SAT 12/16/17            SUN 12/17/17
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          75          85          75          86
TEMP          73 78 85 86 81 78 77 76 75 79 84 85 80 78 77 76 75 79 85 86 80 77
DEWPT         72 71 71 72 73 73 73 73 73 73 73 73 73 71 72 72 71 72 73 73 73 74
RH            97 79 63 63 77 85 87 90 94 82 70 67 79 79 85 87 87 79 67 65 79 90
WIND DIR       E  E  E  E  E  E  E  E  E  E NE NE  E NE NE NE NE NE NE NE NE NE
WIND SPD      16 18 18 17 18 19 19 17 19 19 19 20 20 21 23 24 23 23 23 24 25 26
CLOUDS        SC FW FW FW FW FW FW FW FW FW FW SC SC SC SC SC SC SC SC FW FW SC
POP 12HR                      5           5          30          20          30
QPF 12HR                      0           0        0.03        0.04        0.02
RAIN SHWRS     S                                C  C  S  S  S  S  S  S  S  S  C
HEAT INDEX          90 92 86                90 92 84                92 93 84
MAX HEAT               92    90                92    89                93    90


DATE          MON 12/18/17  TUE 12/19/17  WED 12/20/17  THU 12/21/17
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    85      77    85      77    85      77    85
TEMP          75 78 85 79   78 80 85 79   78 80 85 79   78 80 85 79
DEWPT         73 73 73 74   73 73 73 73   73 73 73 73   72 72 72 73
PWIND DIR        NE     E       E     E       E     E       E     E
WIND CHAR        WY    BZ      BZ    BZ      BZ    BZ      BZ    BZ
AVG CLOUDS    SC SC B1 B1   SC SC SC SC   SC SC SC SC   SC SC SC SC
POP 12HR         30    50      30    30      30    30      30    30
RAIN SHWRS     C  C  C  C    C  C  S  C    C  C  C  S    C  C  C  S

$$



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