912
FPMY50 PGUM 130541
ZFPGUM
ZONE FORECAST FOR GUAM AND THE NORTHERN MARIANAS
NATIONAL WEATHER SERVICE TIYAN GU
341 PM CHST MON APR 13 2026
GUZ001-131315-
GUAM-
341 PM CHST MON APR 13 2026
...COASTAL FLOOD WARNING IN EFFECT THROUGH WEDNESDAY AFTERNOON ALONG
NORTH, EAST, AND SOUTH FACING SHORELINES...
..COASTAL FLOOD WATCH HAS BEEN UPGRADED TO A WARNING
..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
TONIGHT
TROPICAL STORM CONDITIONS EXPECTED. NORTHWEST WINDS 20 TO
30 MPH WITH GUSTS TO 40 MPH INCREASING TO 35 TO 45 MPH WITH GUSTS TO
55 MPH DURING THE EVENING. CLOUDY. SCATTERED SHOWERS BECOMING
NUMEROUS HEAVY SHOWERS DURING THE AFTERNOON. ISOLATED THUNDERSTORMS.
LOWS AROUND 79. CHANCE OF SHOWERS 60 PERCENT.
TUESDAY
TROPICAL STORM CONDITIONS EXPECTED. TYPHOON CONDITIONS
POSSIBLE. NORTHWEST WINDS 40 TO 50 MPH WITH GUSTS TO 65 MPH. CLOUDY
WITH NUMEROUS HEAVY SHOWERS AND ISOLATED THUNDERSTORMS. HIGHS AROUND
83. CHANCE OF SHOWERS 60 PERCENT.
TUESDAY NIGHT
TROPICAL STORM CONDITIONS EXPECTED. WEST WINDS 40
TO 50 MPH. CLOUDY WITH NUMEROUS HEAVY SHOWERS AND ISOLATED
THUNDERSTORMS. LOWS AROUND 79. CHANCE OF SHOWERS 60 PERCENT.
WEDNESDAY
VERY WINDY. SOUTHWEST WINDS 30 TO 40 MPH. CLOUDY WITH
NUMEROUS HEAVY 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 NIGHT
BREEZY. PARTLY CLOUDY WITH A
20 PERCENT CHANCE OF SHOWERS. LOWS IN THE UPPER 70S. HIGHS IN THE
MID 80S.
MPZ001-131315-
ROTA-
341 PM CHST MON APR 13 2026
...COASTAL FLOOD WARNING IN EFFECT THROUGH WEDNESDAY AFTERNOON ALONG
NORTH, EAST, AND SOUTH FACING SHORELINES...
..COASTAL FLOOD WATCH HAS BEEN UPGRADED TO A WARNING
..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
TONIGHT
TROPICAL STORM CONDITIONS EXPECTED. NORTH WINDS 30 TO 40
MPH WITH GUSTS TO 50 MPH INCREASING TO 45 TO 65 MPH WITH GUSTS TO 80
MPH LATE EVENING MIDNIGHT. CLOUDY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS BECOMING NUMEROUS HEAVY SHOWERS AND ISOLATED
THUNDERSTORMS DURING THE AFTERNOON. LOWS AROUND 80. CHANCE OF SHOWERS
70 PERCENT.
TUESDAY
TROPICAL STORM CONDITIONS EXPECTED. TYPHOON CONDITIONS
POSSIBLE. NORTHWEST WINDS 45 TO 65 MPH WITH GUSTS TO 80 MPH. CLOUDY
WITH NUMEROUS HEAVY SHOWERS AND ISOLATED THUNDERSTORMS. HIGHS AROUND
83. CHANCE OF SHOWERS 70 PERCENT.
TUESDAY NIGHT
TROPICAL STORM CONDITIONS EXPECTED. TYPHOON
CONDITIONS POSSIBLE. SOUTHWEST WINDS 45 TO 65 MPH WITH GUSTS TO 80
MPH. CLOUDY WITH NUMEROUS SHOWERS AND ISOLATED THUNDERSTORMS. LOWS
AROUND 79. HIGHS AROUND 84. CHANCE OF SHOWERS 70 PERCENT.
WEDNESDAY
TROPICAL STORM CONDITIONS EXPECTED. TYPHOON CONDITIONS
POSSIBLE. SOUTHWEST WINDS 45 TO 65 MPH WITH GUSTS TO 80 MPH. CLOUDY
WITH NUMEROUS SHOWERS AND ISOLATED 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 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 NIGHT
BREEZY. PARTLY CLOUDY WITH A
20 PERCENT CHANCE OF SHOWERS. LOWS IN THE UPPER 70S. HIGHS IN THE
MID 80S.
MPZ002-003-131315-
TINIAN-SAIPAN-
341 PM CHST MON APR 13 2026
...COASTAL FLOOD WARNING IN EFFECT THROUGH WEDNESDAY AFTERNOON ALONG
NORTH, EAST, AND SOUTH FACING SHORELINES...
..COASTAL FLOOD WATCH HAS BEEN UPGRADED TO A WARNING
..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
TONIGHT
TROPICAL STORM CONDITIONS EXPECTED. NORTHEAST WINDS 45 TO
65 MPH WITH GUSTS TO 85 MPH. CLOUDY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS BECOMING NUMEROUS HEAVY SHOWERS AND SCATTERED
THUNDERSTORMS DURING THE EARLY EVENING. 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 AFTER 4 AM. 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 NIGHT
BREEZY. PARTLY CLOUDY WITH A 20
PERCENT CHANCE OF SHOWERS. HIGHS IN THE MID 80S. LOWS IN THE UPPER
70S.
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