Point Forecast Matrices
Issued by NWS Tiyan, Guam

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FOMY50 PGUM 130610
PFMGUM

POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE TIYAN GU
400 PM CHST THU NOV 13 2025

GUZ001-131800-
GUAM INTERNATIONAL AIRPORT-TIYAN GU
13.48N 144.79E ELEV. 248 FT
400 PM CHST THU NOV 13 2025

DATE          THU 11/13/25      FRI 11/14/25            SAT 11/15/25         SUN
CHST3HRLY     13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04
UTC 3HRLY     03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18

MIN/MAX                      78          88          78          88          78
TEMP             85 83 81 79 78 79 84 88 87 85 83 80 79 79 84 87 87 85 82 80 78
DEWPT            76 77 77 77 77 77 77 77 77 78 78 78 78 78 77 77 78 78 79 78 78
RH               75 82 88 94 97 94 80 70 72 80 85 94 97 97 80 72 75 80 91 94100
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         10  9  6  6  5  6 11 11 10 10  8  8  8  9 14 13 13 13 11 10 10
CLOUDS           SC B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 SC SC SC SC B1 B1 B1 B1
POP 12HR                     30          30          20          20          30
QPF 12HR                   0.01        0.09        0.07        0.03        0.15
RAIN SHWRS        S  C  C  C  C  S  S  S  S  S  S  S  S  S  S  S  S  C  C  C  C
HEAT INDEX       98 92 88 84       94100 99 96 92 87       94100 99 97 92 86
MAX HEAT         98    97    87    94   100    98    90    94   100    98    91


DATE           11/16/25  MON 11/17/25  TUE 11/18/25  WED 11/19/25  THU 11/20/25
CHST6HRLY     10 16 22   04 10 16 22   04 10 16 22   04 10 16 22   04 10 16
UTC 6HRLY     00 06 12   18 00 06 12   18 00 06 12   18 00 06 12   18 00 06

MAX/MIN          88      78    88      78    88      78    88      78    88
TEMP          84 87 83   79 84 87 83   79 84 87 83   79 84 87 83   79 84 87
DEWPT         78 78 79   79 78 78 79   78 78 78 79   78 78 78 79   78 77 78
PWIND DIR         E       E     E       E     E       E     E       E     E
WIND CHAR        GN      BZ    BZ      BZ    BZ      BZ    BZ      BZ    BZ
AVG CLOUDS    B1 SC SC   SC SC SC SC   SC SC SC SC   SC SC SC SC   SC B1 B1
POP 12HR         30      20    20      20    20      20    20      20    20
RAIN SHWRS     C  S  S    S  S  S  S    S  S  S  S    S  S  S  S    S  S  S

$$
MPZ001-131800-
ROTA INTERNATIONAL AIRPORT-SINAPALU MP
14.17N 145.23E ELEV. 592 FT
400 PM CHST THU NOV 13 2025

DATE          THU 11/13/25      FRI 11/14/25            SAT 11/15/25         SUN
CHST3HRLY     13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04
UTC 3HRLY     03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18

MIN/MAX                      76          86          76          86          76
TEMP             84 81 79 77 76 77 82 86 85 83 81 78 77 77 82 86 85 83 81 78 77
DEWPT            76 77 77 77 76 77 77 77 77 77 78 78 77 77 77 77 78 78 78 78 77
RH               77 88 94100100100 85 75 77 82 91100100100 85 75 80 85 91100100
WIND DIR          E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E NE  E  E  E
WIND SPD         11  9  8  5  8  6 11 11 11 11 11 10  9 12 14 14 16 17 16 12 11
CLOUDS           SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC B1 B1 B1 B1
POP 12HR                     20          20          20          20          30
QPF 12HR                   0.10        0.05        0.05        0.02        0.11
RAIN SHWRS        S  S  S  S  S  S  S  S  S  S  S  S  S  S  S  S  S  C  C  C  C
HEAT INDEX       95 88             90 97 96 93 88          90 97 96 93 89
MAX HEAT         95    95          90    97    95    86    90    97    96    86


DATE           11/16/25  MON 11/17/25  TUE 11/18/25  WED 11/19/25  THU 11/20/25
CHST6HRLY     10 16 22   04 10 16 22   04 10 16 22   04 10 16 22   04 10 16
UTC 6HRLY     00 06 12   18 00 06 12   18 00 06 12   18 00 06 12   18 00 06

MAX/MIN          86      76    86      76    86      76    86      76    86
TEMP          82 85 81   77 82 85 81   77 82 85 81   77 82 85 81   77 82 85
DEWPT         78 78 79   77 79 79 79   77 78 78 78   77 78 78 79   77 78 78
PWIND DIR         E       E     E       E     E       E     E       E     E
WIND CHAR        BZ      BZ    BZ      BZ    BZ      BZ    BZ      BZ    BZ
AVG CLOUDS    B1 SC SC   SC SC SC SC   SC SC SC SC   SC SC SC SC   SC SC SC
POP 12HR         30      20    20      20    20      20    20      20    20
RAIN SHWRS     C  S  S    S  S  S  S    S  S  S  S    S  S  S  S    S  S  S

$$
MPZ002-131800-
TINIAN-SAN JOSE MP
14.97N 145.63E ELEV. 74 FT
400 PM CHST THU NOV 13 2025

DATE          THU 11/13/25      FRI 11/14/25            SAT 11/15/25         SUN
CHST3HRLY     13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04
UTC 3HRLY     03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18

MIN/MAX                      78          87          78          88          78
TEMP             85 83 81 79 78 79 83 87 86 85 82 80 79 79 84 87 87 85 82 80 79
DEWPT            76 77 77 77 77 77 77 77 77 77 77 77 77 77 77 77 77 78 78 78 78
RH               75 82 88 94 97 94 82 72 75 77 85 91 94 94 80 72 72 80 88 94 97
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         11 10 10  9  9 10 10 10 11 12 10  9 10 11 16 16 14 16 14 12 11
CLOUDS           SC B1 B1 B1 B1 SC SC SC SC SC SC SC SC SC SC SC SC B1 B1 B1 B1
POP 12HR                     20          20          20          20          30
QPF 12HR                      0           0        0.07        0.03        0.07
RAIN SHWRS        S  S  S  S  S  S  S  S  S  S  S  S  S  S  S  S  S  C  C  C  C
HEAT INDEX       97 91 88 84       92 98 97 95 91 86       93 99 99 96 92 88
MAX HEAT         97    97    87    92    98    97    89    93    99    98    91


DATE           11/16/25  MON 11/17/25  TUE 11/18/25  WED 11/19/25  THU 11/20/25
CHST6HRLY     10 16 22   04 10 16 22   04 10 16 22   04 10 16 22   04 10 16
UTC 6HRLY     00 06 12   18 00 06 12   18 00 06 12   18 00 06 12   18 00 06

MAX/MIN          87      78    88      78    87      78    87      78    88
TEMP          84 87 82   79 84 87 83   79 83 86 82   79 84 87 82   79 84 87
DEWPT         78 78 79   79 78 78 79   78 78 78 78   78 77 77 78   78 78 77
PWIND DIR         E       E     E       E     E       E     E       E     E
WIND CHAR        BZ      BZ    BZ      BZ    BZ      BZ    BZ      BZ    BZ
AVG CLOUDS    SC SC SC   B1 SC SC SC   B1 SC SC SC   SC SC SC SC   SC SC SC
POP 12HR         30      20    20      20    20      20    20      20    20
RAIN SHWRS     C  S  S    S  S  S  S    S  S  S  S    S  S  S  S    S  S  S

$$
MPZ003-131800-
SAIPAN INTERNATIONAL AIRPORT-OBYAN MP
15.11N 145.72E ELEV. 215 FT
400 PM CHST THU NOV 13 2025

DATE          THU 11/13/25      FRI 11/14/25            SAT 11/15/25         SUN
CHST3HRLY     13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04
UTC 3HRLY     03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18

MIN/MAX                      78          88          78          88          78
TEMP             86 83 81 79 78 79 84 88 87 85 83 80 79 79 84 88 87 85 82 80 78
DEWPT            76 77 77 77 77 77 77 77 77 77 77 77 77 77 77 77 77 78 78 78 78
RH               72 82 88 94 97 94 80 70 72 77 82 91 94 94 80 70 72 80 88 94100
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         11 10 10  9  9  9 11 10 11 11 10  9 10 11 16 16 14 16 14 13 11
CLOUDS           SC B1 B1 B1 B1 SC SC SC SC SC SC SC SC SC SC SC SC B1 B1 B1 B1
POP 12HR                     20          20          20          20          30
QPF 12HR                      0           0        0.07        0.03        0.05
RAIN SHWRS        S  S  S  S  S  S  S  S  S  S  S  S  S  S  S  S  S  C  C  C  C
HEAT INDEX       98 92 88 84       93100 99 96 91 87       93 99 99 97 92 86
MAX HEAT         98    98    87    93   100    98    90    93    99    98    90


DATE           11/16/25  MON 11/17/25  TUE 11/18/25  WED 11/19/25  THU 11/20/25
CHST6HRLY     10 16 22   04 10 16 22   04 10 16 22   04 10 16 22   04 10 16
UTC 6HRLY     00 06 12   18 00 06 12   18 00 06 12   18 00 06 12   18 00 06

MAX/MIN          88      78    88      78    88      78    88      78    88
TEMP          84 87 83   79 84 87 82   78 84 87 83   79 84 87 83   79 84 87
DEWPT         78 78 79   79 78 78 79   78 78 78 78   78 78 77 78   78 78 78
PWIND DIR         E       E     E       E     E       E     E       E     E
WIND CHAR        BZ      BZ    BZ      BZ    BZ      BZ    BZ      BZ    BZ
AVG CLOUDS    SC SC SC   B1 SC SC SC   B1 SC SC SC   SC SC SC SC   SC SC SC
POP 12HR         30      20    20      20    20      20    20      20    20
RAIN SHWRS     C  S  S    S  S  S  S    S  S  S  S    S  S  S  S    S  S  S

$$