Point Forecast Matrices
Issued by NWS Tiyan, Guam

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314
FOMY50 PGUM 300900
PFMGUM

POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE TIYAN GU
650 PM CHST SUN NOV 30 2025

GUZ001-301800-
GUAM INTERNATIONAL AIRPORT-TIYAN GU
13.48N 144.79E ELEV. 248 FT
650 PM CHST SUN NOV 30 2025

DATE          SUN 11/30/25      MON 12/01/25            TUE 12/02/25         WED
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                      79          86          79          86          79
TEMP                83 81 80 79 79 83 86 86 84 82 80 79 79 83 86 85 84 82 80 79
DEWPT               78 78 78 78 78 78 78 78 78 79 78 78 78 78 78 78 78 78 78 78
RH                  85 91 94 97 97 85 77 77 82 91 94 97 97 85 77 80 82 88 94 97
WIND DIR             E  E  E  E  E  E SE SE SE SE  E  E  E  E  E  E  E  E  E  E
WIND SPD            12 11 12 10 10 13 11 12  9 11 10  9 10 16 14 13 10  9 10  8
CLOUDS              B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 SC SC SC SC SC SC SC SC
POP 12HR                     50          50          50          50          20
QPF 12HR                   0.65        0.81        0.77        0.17        0.02
RAIN SHWRS           C  C  C  C  C  C  C  C  C  C  C  C  S  S  S  S  S  S  S  S
TSTMS                S  S  S  S              S  S  S  S
HEAT INDEX          95 91 88    84 93 99 98 95 92 88    84 93 97 96 94 91 87
MAX HEAT               96    90    93    99    97    91    93    97    96    90
HIGH SURF            Y  Y  Y  Y  Y  Y  Y


DATE           12/03/25  THU 12/04/25  FRI 12/05/25  SAT 12/06/25  SUN 12/07/25
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      79    85      79    87      79    88      77    88
TEMP          84 86 82   79 83 85 82   79 83 86 83   80 84 87 82   77 83 87
DEWPT         78 78 78   78 78 78 78   78 78 77 77   77 77 77 77   77 76 76
PWIND DIR         E       E     E       E     E       E     E       E     E
WIND CHAR        GN      GN    GN      GN    GN      GN    GN      GN    GN
AVG CLOUDS    SC SC B1   B1 B1 B1 B1   B1 B1 B1 B1   SC SC SC SC   SC SC SC
POP 12HR         10      30    30      30    30      30    20      20    20
RAIN SHWRS     S  S  C    C  C  C  C    C  C  C  C    S  S  S  S    S  S  S
TSTMS                        S  S  S    S  S

$$
MPZ001-301800-
ROTA INTERNATIONAL AIRPORT-SINAPALU MP
14.17N 145.23E ELEV. 592 FT
650 PM CHST SUN NOV 30 2025

DATE          SUN 11/30/25      MON 12/01/25            TUE 12/02/25         WED
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                      79          86          79          85          79
TEMP                83 81 80 79 79 83 86 85 84 82 80 79 79 82 85 84 83 82 80 79
DEWPT               78 78 78 78 78 78 78 78 78 78 78 78 78 78 78 78 78 78 78 77
RH                  85 91 94 97 97 85 77 80 82 88 94 97 97 88 80 82 85 88 94 94
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 14 16 11 13 17 18 17 17 16 16 14 16 18 17 17 16 13 14 12
CLOUDS              B2 B2 B2 B2 B2 B2 B2 B2 SC SC SC SC SC SC SC SC SC SC SC SC
POP 12HR                     50          50          40          20           5
QPF 12HR                   0.62        0.58        0.16        0.01        0.01
RAIN SHWRS           C  C  C  C  C  C  C  C  S  S  S  S  S  S  S  S  S  S  S  S
TSTMS                S  S  S  S
HEAT INDEX          94 91 87    84 93 97 97 95 91 88    84 91 96 95 93 90 86
MAX HEAT               95    90    93    98    97    90    91    96    95    89
HIGH SURF            Y  Y  Y  Y  Y  Y  Y


DATE           12/03/25  THU 12/04/25  FRI 12/05/25  SAT 12/06/25  SUN 12/07/25
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          85      79    85      79    85      79    87      77    87
TEMP          83 85 82   79 82 84 82   79 83 85 82   80 84 86 82   78 83 86
DEWPT         77 77 78   77 78 78 78   78 78 77 77   77 77 77 77   77 77 77
PWIND DIR         E       E     E       E     E       E     E       E     E
WIND CHAR        BZ      GN    GN      GN    GN      GN    GN      GN    GN
AVG CLOUDS    SC SC SC   B1 B1 B1 B1   B1 B1 B1 SC   SC SC SC SC   SC SC SC
POP 12HR         10      20    30      30    30      20    20      20    20
RAIN SHWRS     S  S  S    S  C  C  C    C  C  S  S    S  S  S  S    S  S  S

$$
MPZ002-301800-
TINIAN-SAN JOSE MP
14.97N 145.63E ELEV. 74 FT
650 PM CHST SUN NOV 30 2025

DATE          SUN 11/30/25      MON 12/01/25            TUE 12/02/25         WED
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                      77          88          77          87          77
TEMP                84 81 79 78 78 84 88 87 85 82 79 78 78 83 87 86 84 82 79 78
DEWPT               78 78 78 78 78 78 78 78 78 78 78 78 77 78 78 78 78 78 78 77
RH                  82 91 97100100 82 72 75 80 88 97100 97 85 75 77 82 88 97 97
WIND DIR             E  E  E  E  E  E  E  E  E  E  E  E  E  E SE  E  E  E  E  E
WIND SPD            13 13 14 11 14 17 16 16 17 16 16 13 16 17 16 14 13 13 14 12
CLOUDS              B1 B1 B1 B1 B1 B1 B1 B1 SC SC SC SC SC SC SC SC SC SC SC SC
POP 12HR                     20          20          20          20          20
QPF 12HR                   0.09        0.18        0.12        0.02        0.02
RAIN SHWRS           S  S  S  S  S  S  S  S  S  S  S  S  S  S  S  S  S  S  S  S
TSTMS
HEAT INDEX          96 91 84       94101100 96 91 84       92 99 98 95 90 84
MAX HEAT               98    90    94   101    99    89    92    99    97    88
HIGH SURF            Y  Y  Y  Y  Y  Y  Y


DATE           12/03/25  THU 12/04/25  FRI 12/05/25  SAT 12/06/25  SUN 12/07/25
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      77    86      79    87      79    89      76    89
TEMP          83 87 82   78 82 85 82   79 84 86 83   80 85 88 82   77 84 88
DEWPT         77 77 77   77 77 77 78   77 77 77 77   77 77 77 77   77 76 76
PWIND DIR        SE       E     E       E     E       E     E       E     E
WIND CHAR        BZ      GN    GN      GN    GN      GN    GN      GN    GN
AVG CLOUDS    SC SC SC   SC B1 B1 B1   B1 B1 SC SC   SC SC SC SC   SC SC SC
POP 12HR         20      20    30      30    30      20    20      20    20
RAIN SHWRS     S  S  S    S  C  C  C    C  C  S  S    S  S  S  S    S  S  S

$$
MPZ003-301800-
SAIPAN INTERNATIONAL AIRPORT-OBYAN MP
15.11N 145.72E ELEV. 215 FT
650 PM CHST SUN NOV 30 2025

DATE          SUN 11/30/25      MON 12/01/25            TUE 12/02/25         WED
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                      77          88          77          87          77
TEMP                84 81 79 77 78 84 88 87 85 82 79 78 78 83 87 86 84 82 79 78
DEWPT               78 78 78 78 78 78 78 78 78 78 78 78 77 78 78 78 78 78 77 77
RH                  82 91 97103100 82 72 75 80 88 97100 97 85 75 77 82 88 94 97
WIND DIR             E  E  E  E  E  E  E  E  E  E  E  E  E  E SE  E  E  E  E  E
WIND SPD            14 13 13 12 13 16 14 14 17 14 14 13 14 17 16 13 13 13 13 11
CLOUDS              B1 B1 B1 B1 B1 B1 B1 B1 SC SC SC SC SC SC SC SC SC SC SC SC
POP 12HR                     30          30          20          20          20
QPF 12HR                   0.12        0.13        0.11        0.03        0.02
RAIN SHWRS           C  C  C  C  S  S  S  S  S  S  S  S  S  S  S  S  S  S  S  S
TSTMS
HEAT INDEX          96 91 84       94101100 96 91 84       92 99 98 95 90
MAX HEAT               98    89    94   101    99    89    92    99    97    88
HIGH SURF            Y  Y  Y  Y  Y  Y  Y


DATE           12/03/25  THU 12/04/25  FRI 12/05/25  SAT 12/06/25  SUN 12/07/25
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      77    86      79    87      79    89      76    89
TEMP          83 87 82   78 82 85 82   79 84 86 83   80 85 88 82   77 84 88
DEWPT         77 77 77   77 77 77 78   77 77 77 77   77 77 77 77   77 76 77
PWIND DIR        SE       E     E       E     E       E     E       E     E
WIND CHAR        GN      GN    GN      GN    GN      GN    GN      GN    GN
AVG CLOUDS    SC SC SC   SC B1 B1 B1   B1 B1 SC SC   SC SC SC SC   SC SC SC
POP 12HR         20      20    30      30    30      20    20      20    20
RAIN SHWRS     S  S  S    S  C  C  C    C  C  S  S    S  S  S  S    S  S  S

$$