691
FPMY50 PGUM 141812
ZFPGUM
ZONE FORECAST FOR GUAM AND THE NORTHERN MARIANAS
NATIONAL WEATHER SERVICE TIYAN GU
412 AM CHST WED APR 15 2026
GUZ001-151015-
GUAM-
412 AM CHST WED APR 15 2026
..TROPICAL STORM WARNING IN EFFECT
..TYPHOON WATCH IN EFFECT
...COASTAL FLOOD WARNING REMAINS IN EFFECT UNTIL 5 AM CHST THURSDAY
ALONG SOUTH, WEST, NORTH FACING REEFS...
...HIGH SURF WARNING REMAINS IN EFFECT UNTIL 6 PM CHST THURSDAY
ALONG SOUTH, WEST, AND NORTH FACING REEFS...
..FLOOD WATCH REMAINS IN EFFECT THROUGH TONIGHT
TODAY
TROPICAL STORM CONDITIONS EXPECTED. WEST WINDS 50 TO 60 MPH
GUSTS TO 75, DECREASING TO 40 TO 50 MPH THIS AFTERNOON. CLOUDY WITH
NUMEROUS SHOWERS, BECOMING SCATTERED THIS AFTERNOON. ISOLATED
THUNDERSTORMS. HIGHS AROUND 84. CHANCE OF SHOWERS 60 PERCENT.
TONIGHT
TROPICAL STORM CONDITIONS EXPECTED. SOUTHWEST WINDS 35 TO
45 MPH. MOSTLY CLOUDY WITH SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. LOWS AROUND 79. CHANCE OF SHOWERS 50 PERCENT.
THURSDAY
WINDY. PARTLY SUNNY WITH SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. SOUTHWEST WINDS 25 TO 35 MPH. HIGHS AROUND 85. CHANCE
OF SHOWERS 50 PERCENT.
THURSDAY NIGHT
BREEZY. MOSTLY CLOUDY WITH ISOLATED SHOWERS.
SOUTHWEST WINDS 20 TO 25 MPH. LOWS AROUND 78. CHANCE OF SHOWERS
20 PERCENT.
FRIDAY
BREEZY. PARTLY SUNNY WITH A 20 PERCENT CHANCE OF SHOWERS.
WEST WINDS 20 TO 25 MPH. HIGHS AROUND 86.
FRIDAY NIGHT THROUGH MONDAY
BREEZY. PARTLY CLOUDY WITH A
20 PERCENT CHANCE OF SHOWERS. LOWS IN THE UPPER 70S. HIGHS IN THE
UPPER 80S.
MONDAY NIGHT AND TUESDAY
PARTLY CLOUDY WITH A 10 PERCENT CHANCE
OF LIGHT SHOWERS. LOWS IN THE UPPER 70S. HIGHS IN THE UPPER 80S.
MPZ001-151015-
ROTA-
412 AM CHST WED APR 15 2026
..TYPHOON WARNING IN EFFECT
...COASTAL FLOOD WARNING REMAINS IN EFFECT UNTIL 5 AM CHST THURSDAY
ALONG SOUTH, WEST, AND NORTH FACING REEFS...
...HIGH SURF WARNING REMAINS IN EFFECT UNTIL 6 PM CHST THURSDAY
ALONG SOUTH, WEST, AND NORTH FACING REEFS...
..FLOOD WATCH REMAINS IN EFFECT THROUGH TONIGHT
TODAY
TROPICAL STORM CONDITIONS EXPECTED. SOUTHWEST WINDS 50 TO
60 MPH WITH GUSTS TO 75 MPH, DECREASING TO 45 TO 55 MPH WITH GUSTS TO
65 MPH IN THE AFTERNOON. CLOUDY WITH NUMEROUS HEAVY SHOWERS AND
ISOLATED THUNDERSTORMS. HIGHS AROUND 84. CHANCE OF SHOWERS 70
PERCENT.
TONIGHT
TROPICAL STORM CONDITIONS EXPECTED. SOUTHWEST WINDS 35 TO
45 MPH. MOSTLY CLOUDY WITH SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. LOWS AROUND 79. CHANCE OF SHOWERS 50 PERCENT.
THURSDAY
WINDY. SOUTHWEST WINDS 25 TO 35 MPH. MOSTLY CLOUDY WITH
SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS. HIGHS AROUND 84. CHANCE
OF SHOWERS 50 PERCENT.
THURSDAY NIGHT
WINDY. MOSTLY CLOUDY. SCATTERED SHOWERS AND
ISOLATED THUNDERSTORMS IN THE EVENING, THEN ISOLATED SHOWERS AFTER
MIDNIGHT. SOUTHWEST WINDS 25 TO 30 MPH. LOWS AROUND 78. CHANCE OF
SHOWERS 50 PERCENT.
FRIDAY
BREEZY. PARTLY SUNNY WITH A 20 PERCENT CHANCE OF SHOWERS.
SOUTHWEST WINDS 20 TO 25 MPH. HIGHS AROUND 85.
FRIDAY NIGHT
BREEZY. PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF
SHOWERS. LOWS IN THE UPPER 70S.
SATURDAY THROUGH MONDAY
BREEZY. PARTLY CLOUDY WITH A 20 PERCENT
CHANCE OF SHOWERS. HIGHS IN THE MID 80S. LOWS IN THE UPPER 70S.
MONDAY NIGHT AND TUESDAY
PARTLY CLOUDY WITH A 20 PERCENT CHANCE
OF LIGHT SHOWERS. LOWS IN THE UPPER 70S. HIGHS IN THE MID 80S.
MPZ002-003-151015-
TINIAN-SAIPAN-
412 AM CHST WED APR 15 2026
..TYPHOON WARNING IN EFFECT
...COASTAL FLOOD WARNING REMAINS IN EFFECT UNTIL 5 AM CHST THURSDAY
ALONG NORTH, EAST, SOUTH AND WEST FACING REEFS...
...HIGH SURF WARNING REMAINS IN EFFECT UNTIL 6 PM CHST THURSDAY
ALONG NORTH, EAST, SOUTH AND WEST FACING REEFS...
..FLOOD WATCH REMAINS IN EFFECT THROUGH TONIGHT
TODAY
TYPHOON CONDITIONS EXPECTED. SOUTH WINDS 125 TO 145 MPH WITH
GUSTS TO 170 MPH DECREASING TO 95 TO 115 MPH AROUND NOON, THEN TO 65
TO 85 MPH LATE 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 90
PERCENT.
TONIGHT
TROPICAL STORM CONDITIONS EXPECTED. SOUTHWEST WINDS 50 TO
65 MPH. GUSTS UP TO 75 MPH IN THE EVENING. CLOUDY. NUMEROUS HEAVY
SHOWERS AND ISOLATED THUNDERSTORMS IN THE EVENING, THEN SCATTERED
SHOWERS AND ISOLATED THUNDERSTORMS AFTER MIDNIGHT. LOWS AROUND 79.
CHANCE OF SHOWERS 70 PERCENT.
THURSDAY
TROPICAL STORM CONDITIONS EXPECTED. SOUTHWEST WINDS 40
TO 50 MPH. MOSTLY CLOUDY WITH SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. HIGHS AROUND 84. CHANCE OF SHOWERS 50 PERCENT.
THURSDAY NIGHT
WINDY. SOUTHWEST WINDS 30 TO 35 MPH. MOSTLY CLOUDY
WITH SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS. LOWS AROUND 77.
CHANCE OF SHOWERS 50 PERCENT.
FRIDAY
WINDY. PARTLY SUNNY WITH A 20 PERCENT CHANCE OF SHOWERS.
SOUTHWEST WINDS 25 TO 30 MPH. HIGHS AROUND 84.
FRIDAY NIGHT
BREEZY. MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF
SHOWERS. LOWS IN THE UPPER 70S.
SATURDAY THROUGH MONDAY
BREEZY. PARTLY CLOUDY WITH A 20 PERCENT
CHANCE OF SHOWERS. HIGHS IN THE MID 80S. LOWS IN THE UPPER 70S.
MONDAY NIGHT AND TUESDAY
PARTLY CLOUDY WITH A 10 PERCENT CHANCE
OF LIGHT SHOWERS. LOWS IN THE UPPER 70S. HIGHS IN THE UPPER 80S.
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