360
FPMY50 PGUM 122358
ZFPGUM
ZONE FORECAST FOR GUAM AND THE NORTHERN MARIANAS
NATIONAL WEATHER SERVICE TIYAN GU
958 AM CHST MON APR 13 2026
GUZ001-130830-
GUAM-
958 AM CHST MON APR 13 2026
..TROPICAL STORM WARNING REMAINS IN EFFECT
..TYPHOON WATCH REMAINS IN EFFECT
...HIGH SURF WARNING REMAINS IN EFFECT UNTIL 6 PM CHST THURSDAY
ALONG NORTH, EAST, AND SOUTH FACING REEFS...
..FLOOD WATCH REMAINS IN EFFECT THROUGH WEDNESDAY MORNING
...COASTAL FLOOD WATCH IN EFFECT THROUGH WEDNESDAY AFTERNOON ALONG
NORTH, EAST, AND SOUTH FACING SHORELINES...
TODAY
VERY WINDY. NORTH WINDS 30 TO 40 MPH. CLOUDY WITH SCATTERED
SHOWERS AND ISOLATED THUNDERSTORMS. HIGHS AROUND 84. CHANCE OF
SHOWERS 50 PERCENT.
TONIGHT
TROPICAL STORM CONDITIONS EXPECTED. NORTHWEST WINDS 35 TO
45 MPH. CLOUDY WITH NUMEROUS SHOWERS AND SCATTERED THUNDERSTORMS.
LOWS AROUND 79. CHANCE OF SHOWERS 60 PERCENT.
TUESDAY
TROPICAL STORM CONDITIONS EXPECTED. NORTHWEST WINDS 40 TO
50 MPH. CLOUDY WITH NUMEROUS SHOWERS AND SCATTERED THUNDERSTORMS.
HIGHS AROUND 83. CHANCE OF SHOWERS 60 PERCENT.
TUESDAY NIGHT
TROPICAL STORM CONDITIONS EXPECTED. WEST WINDS 40
TO 50 MPH. CLOUDY WITH NUMEROUS SHOWERS AND SCATTERED THUNDERSTORMS.
LOWS AROUND 79. CHANCE OF SHOWERS 60 PERCENT.
WEDNESDAY
VERY WINDY. SOUTHWEST WINDS 30 TO 40 MPH. CLOUDY WITH
NUMEROUS SHOWERS AND ISOLATED THUNDERSTORMS. HIGHS AROUND 84. CHANCE
OF SHOWERS 60 PERCENT.
WEDNESDAY NIGHT AND THURSDAY
WINDY. MOSTLY CLOUDY. SCATTERED
SHOWERS AND ISOLATED THUNDERSTORMS. LOWS IN THE UPPER 70S. HIGHS IN
THE MID 80S. CHANCE OF SHOWERS 50 PERCENT.
THURSDAY NIGHT AND FRIDAY
WINDY. MOSTLY CLOUDY. A 20 PERCENT
CHANCE OF SHOWERS. LOWS IN THE UPPER 70S. HIGHS IN THE MID 80S.
FRIDAY NIGHT THROUGH SUNDAY
BREEZY. PARTLY CLOUDY WITH A
20 PERCENT CHANCE OF SHOWERS. LOWS IN THE UPPER 70S. HIGHS IN THE
MID 80S.
MPZ001-130830-
ROTA-
958 AM CHST MON APR 13 2026
..TYPHOON WARNING REMAINS IN EFFECT
...HIGH SURF WARNING REMAINS IN EFFECT UNTIL 6 PM CHST THURSDAY
ALONG NORTH, EAST, AND SOUTH FACING REEFS...
..FLOOD WATCH REMAINS IN EFFECT THROUGH WEDNESDAY MORNING
...COASTAL FLOOD WATCH IN EFFECT THROUGH WEDNESDAY AFTERNOON ALONG
NORTH, EAST, AND SOUTH FACING SHORELINES...
TODAY
TROPICAL STORM CONDITIONS EXPECTED. NORTH TO NORTHEAST
WINDS 20 TO 30 MPH WITH GUSTS TO 40 MPH, INCREASING 35 TO 45 MPH
WITH GUSTS TO 60 MPH LATE AFTERNOON. CLOUDY WITH SCATTERED SHOWERS
AND ISOLATED THUNDERSTORMS. HIGHS AROUND 84. CHANCE OF SHOWERS 50
PERCENT.
TONIGHT
TROPICAL STORM CONDITIONS EXPECTED. NORTH WINDS 35 TO 45
MPH WITH GUSTS TO 60 MPH INCREASING TO 45 TO 65 MPH WITH GUSTS TO 75
MPH NEAR MIDNIGHT. CLOUDY WITH NUMEROUS HEAVY SHOWERS AND SCATTERED
THUNDERSTORMS. LOWS AROUND 80. CHANCE OF SHOWERS 70 PERCENT.
TUESDAY
TROPICAL STORM CONDITIONS EXPECTED. TYPHOON CONDITIONS
POSSIBLE. NORTHWEST WINDS 45 TO 60 MPH WITH GUSTS TO 75 MPH. CLOUDY
WITH NUMEROUS HEAVY SHOWERS AND SCATTERED THUNDERSTORMS. HIGHS AROUND
83. CHANCE OF SHOWERS 70 PERCENT.
TUESDAY NIGHT AND WEDNESDAY
TROPICAL STORM CONDITIONS EXPECTED.
TYPHOON CONDITIONS POSSIBLE. SOUTHWEST WINDS 45 TO 65 MPH WITH GUSTS
TO 75 MPH. CLOUDY WITH NUMEROUS SHOWERS AND SCATTERED THUNDERSTORMS.
LOWS AROUND 79. HIGHS AROUND 84. CHANCE OF SHOWERS 70 PERCENT.
WEDNESDAY NIGHT
TROPICAL STORM CONDITIONS EXPECTED. MOSTLY CLOUDY
WITH NUMEROUS HEAVY SHOWERS AND ISOLATED THUNDERSTORMS. LOWS IN THE
UPPER 70S. CHANCE OF SHOWERS 60 PERCENT.
THURSDAY
WINDY. PARTLY SUNNY WITH SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. HIGHS IN THE MID 80S. CHANCE OF SHOWERS 50 PERCENT.
THURSDAY NIGHT THROUGH AND FRIDAY
WINDY. MOSTLY CLOUDY.
A 20 PERCENT CHANCE OF SHOWERS. LOWS IN THE UPPER 70S. HIGHS IN THE
MID 80S.
FRIDAY NIGHT THROUGH SUNDAY
BREEZY. PARTLY CLOUDY WITH A
20 PERCENT CHANCE OF SHOWERS. LOWS IN THE UPPER 70S. HIGHS IN THE
MID 80S.
MPZ002-003-130830-
TINIAN-SAIPAN-
958 AM CHST MON APR 13 2026
..TYPHOON WARNING REMAINS IN EFFECT
...HIGH SURF WARNING REMAINS IN EFFECT UNTIL 6 PM CHST THURSDAY
ALONG NORTH, EAST, AND SOUTH FACING REEFS...
..FLOOD WATCH REMAINS IN EFFECT THROUGH WEDNESDAY MORNING
...COASTAL FLOOD WATCH IN EFFECT THROUGH WEDNESDAY AFTERNOON ALONG
NORTH, EAST, AND SOUTH FACING SHORELINES...
TODAY
TROPICAL STORM CONDITIONS EXPECTED. NORTHEAST WINDS 20 TO 30
MPH INCREASING TO 35 TO 45 MPH THIS AFTERNOON. GUSTS TO 65 MPH,
ESPECIALLY WITH HEAVIER SHOWERS AND THUNDERSTORMS. CLOUDY WITH
SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS. HIGHS AROUND 85.
CHANCE OF SHOWERS 50 PERCENT.
TONIGHT
TROPICAL STORM CONDITIONS EXPECTED. NORTHEAST WINDS 45 TO
65 MPH WITH GUSTS TO 85 MPH. CLOUDY WITH NUMEROUS HEAVY SHOWERS AND
SCATTERED THUNDERSTORMS. LOWS AROUND 79. CHANCE OF SHOWERS 70
PERCENT.
TUESDAY
TYPHOON CONDITIONS EXPECTED. NORTHEAST WINDS 60 TO 70 MPH
INCREASING TO 95 TO 105 MPH NEAR NOON, THEN NEAR 110 TO 125 MPH
LATER IN THE AFTERNOON. CLOUDY. NUMEROUS HEAVY SHOWERS AND SCATTERED
THUNDERSTORMS BECOMING WIDESPREAD HEAVY SHOWERS AND SCATTERED
THUNDERSTORMS LATER IN THE MORNING. HIGHS AROUND 83. CHANCE OF
SHOWERS NEAR 100 PERCENT.
TUESDAY NIGHT
TYPHOON CONDITIONS EXPECTED. SOUTH WINDS 130 TO 150
MPH, WITH GUSTS TO 180 MPH, DECREASING TO 80 TO 100 MPH NEAR
MIDNIGHT, THEN 60 TO 80 MPH. CLOUDY WITH WIDESPREAD HEAVY SHOWERS
AND SCATTERED THUNDERSTORMS. LOWS AROUND 79. CHANCE OF SHOWERS NEAR
100 PERCENT.
WEDNESDAY
TROPICAL STORM CONDITIONS EXPECTED. SOUTHWEST WINDS 50
TO 60 MPH. CLOUDY WITH NUMEROUS HEAVY SHOWERS AND SCATTERED
THUNDERSTORMS. HIGHS AROUND 83. CHANCE OF SHOWERS 70 PERCENT.
WEDNESDAY NIGHT
TROPICAL STORM CONDITIONS EXPECTED. CLOUDY.
NUMEROUS HEAVY SHOWERS. SCATTERED THUNDERSTORMS BECOMING ISOLATED
NEAR MIDNIGHT. LOWS IN THE UPPER 70S. CHANCE OF SHOWERS 60 PERCENT.
THURSDAY AND THURSDAY NIGHT
VERY WINDY. MOSTLY CLOUDY. SCATTERED
SHOWERS AND ISOLATED THUNDERSTORMS. HIGHS IN THE LOWER 80S. LOWS IN
THE UPPER 70S. CHANCE OF SHOWERS 50 PERCENT.
FRIDAY THROUGH SUNDAY
BREEZY. PARTLY CLOUDY WITH A 20 PERCENT
CHANCE OF SHOWERS. HIGHS IN THE MID 80S. LOWS IN THE UPPER 70S.
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