305
FPMY50 PGUM 131812
ZFPGUM
ZONE FORECAST FOR GUAM AND THE NORTHERN MARIANAS
NATIONAL WEATHER SERVICE TIYAN GU
412 AM CHST TUE APR 14 2026
GUZ001-141045-
GUAM-
412 AM CHST TUE APR 14 2026
..TROPICAL STORM WARNING IN EFFECT
..TYPHOON WATCH IN EFFECT
...COASTAL FLOOD WARNING IN EFFECT UNTIL 5 AM CHST THURSDAY ALONG
NORTH, EAST, AND SOUTH FACING REEFS...
...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
TODAY
TROPICAL STORM CONDITIONS EXPECTED. NORTHWEST WINDS 50 TO
60 MPH WITH GUSTS TO 70 MPH. CLOUDY WITH WIDESPREAD HEAVY SHOWERS
AND ISOLATED THUNDERSTORMS. LOCALLY HEAVY RAINFALL POSSIBLE. HIGHS
AROUND 83. CHANCE OF SHOWERS 100 PERCENT.
TONIGHT
TROPICAL STORM CONDITIONS EXPECTED. WEST WINDS 50 TO 60
MPH WITH GUSTS TO 70 MPH. CLOUDY WITH NUMEROUS HEAVY SHOWERS AND
ISOLATED THUNDERSTORMS. LOCALLY HEAVY RAINFALL POSSIBLE. LOWS AROUND
79. CHANCE OF SHOWERS 70 PERCENT.
WEDNESDAY
TROPICAL STORM CONDITIONS EXPECTED. WEST WINDS 45 TO 55
MPH. CLOUDY WITH NUMEROUS HEAVY SHOWERS AND ISOLATED THUNDERSTORMS.
HIGHS AROUND 84. CHANCE OF SHOWERS 60 PERCENT.
WEDNESDAY NIGHT
TROPICAL STORM CONDITIONS EXPECTED. SOUTHWEST
WINDS 35 TO 45 MPH. MOSTLY CLOUDY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. LOWS AROUND 79. HIGHS AROUND 85. CHANCE OF SHOWERS 50
PERCENT.
THURSDAY
WINDY. SOUTHWEST WINDS 25 TO 35 MPH. MOSTLY CLOUDY.
SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS. HIGHS AROUND 85.
CHANCE OF SHOWERS 50 PERCENT.
THURSDAY NIGHT AND FRIDAY
BREEZY. MOSTLY CLOUDY. A 20 PERCENT
CHANCE OF SHOWERS. LOWS IN THE UPPER 70S. HIGHS IN THE MID 80S.
FRIDAY NIGHT THROUGH SUNDAY NIGHT
BREEZY. PARTLY CLOUDY WITH A
20 PERCENT CHANCE OF SHOWERS. LOWS IN THE UPPER 70S. HIGHS IN THE
UPPER 80S.
MONDAY
PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF SHOWERS. HIGHS
IN THE MID 80S.
MPZ001-141045-
ROTA-
412 AM CHST TUE APR 14 2026
..TYPHOON WARNING IN EFFECT
...COASTAL FLOOD WARNING IN EFFECT UNTIL 5 AM CHST THURSDAY ALONG
NORTH, EAST, AND SOUTH FACING REEFS...
...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
TODAY
TROPICAL STORM CONDITIONS EXPECTED. TYPHOON CONDITIONS
POSSIBLE. NORTH WINDS 50 TO 60 MPH WITH GUSTS TO 75 MPH BECOMING
NORTHWEST AND INCREASING TO 60 TO 70 MPH WITH GUSTS TO 85 MPH IN THE
AFTERNOON. CLOUDY. NUMEROUS HEAVY SHOWERS AND ISOLATED THUNDERSTORMS
IN THE MORNING, THEN HEAVY SHOWERS AND ISOLATED THUNDERSTORMS IN THE
AFTERNOON. HIGHS AROUND 83. CHANCE OF SHOWERS NEAR 100 PERCENT.
TONIGHT
TROPICAL STORM CONDITIONS EXPECTED. TYPHOON CONDITIONS
POSSIBLE. WEST WINDS 60 TO 70 MPH WITH GUSTS TO 90 MPH. CLOUDY WITH
HEAVY SHOWERS AND ISOLATED THUNDERSTORMS. LOWS AROUND 79. CHANCE OF
SHOWERS NEAR 100 PERCENT.
WEDNESDAY
TROPICAL STORM CONDITIONS EXPECTED. SOUTHWEST WINDS 55
TO 65 MPH. GUSTS UP TO 75 MPH IN THE MORNING. CLOUDY WITH NUMEROUS
HEAVY SHOWERS AND ISOLATED THUNDERSTORMS. LOCALLY HEAVY RAINFALL
POSSIBLE. HIGHS AROUND 84. CHANCE OF SHOWERS 70 PERCENT.
WEDNESDAY NIGHT AND THURSDAY
TROPICAL STORM CONDITIONS EXPECTED.
SOUTHWEST WINDS 35 TO 45 MPH, DECREASING TO 25 TO 35 MPH IN THE
AFTERNOON. MOSTLY CLOUDY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. LOWS AROUND 79. HIGHS AROUND 84. CHANCE OF SHOWERS 50
PERCENT.
THURSDAY NIGHT AND FRIDAY
BREEZY. MOSTLY CLOUDY. A 20 PERCENT
CHANCE OF SHOWERS. LOWS IN THE UPPER 70S. HIGHS IN THE MID 80S.
FRIDAY NIGHT THROUGH SUNDAY NIGHT
BREEZY. PARTLY CLOUDY WITH A
20 PERCENT CHANCE OF SHOWERS. LOWS IN THE UPPER 70S. HIGHS IN THE
MID 80S.
MONDAY
PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF SHOWERS. HIGHS
IN THE MID 80S.
MPZ002-003-141045-
TINIAN-SAIPAN-
412 AM CHST TUE APR 14 2026
..TYPHOON WARNING IN EFFECT
...COASTAL FLOOD WARNING IN EFFECT UNTIL 5 AM CHST THURSDAY ALONG
NORTH, EAST, AND SOUTH FACING REEFS...
...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
TODAY
TYPHOON CONDITIONS EXPECTED. NORTHEAST WINDS 50 TO 60 MPH
WITH GUSTS TO 70 MPH INCREASING TO 95 TO 105 MPH NEAR NOON, THEN NEAR
115 TO 130 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.
TONIGHT
TYPHOON CONDITIONS EXPECTED. NORTHEAST WINDS 130 TO 155
MPH WITH GUSTS TO 175 MPH SHIFTING TO THE SOUTHWEST 100 TO 115 MPH
LATE IN THE NIGHT. CLOUDY WITH TORRENTIAL RAIN AND SCATTERED
THUNDERSTORMS. LOWS AROUND 79. CHANCE OF SHOWERS NEAR 100 PERCENT.
WEDNESDAY
TYPHOON CONDITIONS EXPECTED. SOUTH WINDS 75 TO 85 MPH
WITH GUSTS TO 95 MPH BECOMING SOUTHWEST AND DECREASING TO 60 TO 70
MPH WITH GUSTS TO 80 MPH IN THE AFTERNOON. CLOUDY. HEAVY SHOWERS AND
SCATTERED THUNDERSTORMS IN THE MORNING, THEN HEAVY SHOWERS AND
ISOLATED THUNDERSTORMS IN THE AFTERNOON. HIGHS AROUND 83. CHANCE OF
SHOWERS NEAR 100 PERCENT.
WEDNESDAY NIGHT
TROPICAL STORM CONDITIONS EXPECTED. SOUTHWEST
WINDS 50 TO 60 MPH. GUSTS UP TO 70 MPH IN THE EVENING. CLOUDY.
NUMEROUS HEAVY SHOWERS AND ISOLATED THUNDERSTORMS IN THE EVENING,
THEN SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS AFTER MIDNIGHT.
LOCALLY HEAVY RAINFALL POSSIBLE IN THE EVENING. LOWS AROUND 78.
CHANCE OF SHOWERS 70 PERCENT.
THURSDAY
TROPICAL STORM CONDITIONS EXPECTED. SOUTHWEST WINDS 40
TO 50 MPH DECREASING TO 30 TO 40 MPH IN THE AFTERNOON. CLOUDY WITH
NUMEROUS SHOWERS AND ISOLATED THUNDERSTORMS. HIGHS AROUND 83. CHANCE
OF SHOWERS 60 PERCENT.
THURSDAY NIGHT
WINDY. MOSTLY CLOUDY WITH SCATTERED SHOWERS AND
ISOLATED THUNDERSTORMS. LOWS IN THE UPPER 70S. CHANCE OF SHOWERS
30 PERCENT.
FRIDAY
BREEZY. PARTLY SUNNY WITH A 20 PERCENT CHANCE OF SHOWERS.
HIGHS IN THE MID 80S.
FRIDAY NIGHT THROUGH SUNDAY NIGHT
BREEZY. PARTLY CLOUDY WITH A
20 PERCENT CHANCE OF SHOWERS. LOWS IN THE UPPER 70S. HIGHS IN THE
MID 80S.
MONDAY
PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF SHOWERS. HIGHS
IN THE MID 80S.
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