527
WTPQ81 PGUM 112306
HLSPQ1
URGENT - IMMEDIATE BROADCAST REQUESTED
TYPHOON SINLAKU (04W) LOCAL STATEMENT
NATIONAL WEATHER SERVICE TIYAN GU
906 AM CHST SUN APR 12 2026
...TYPHOON SINLAKU CONTINUES TO INTENSIFY AS IT PIVOTS TOWARD THE
MARIANAS...
NEW INFORMATION
NONE.
AREAS AFFECTED
THIS LOCAL STATEMENT PROVIDES IMPORTANT INFORMATION AND
RECOMMENDED ACTIONS FOR PEOPLE IN CHUUK, GUAM, AND THE NORTHERN
MARIANAS.
WATCHES/WARNINGS
A TYPHOON WARNING REMAINS IN EFFECT FOR FANANU IN CHUUK STATE.
A TROPICAL STORM WARNING REMAINS IN EFFECT FOR CHUUK AND ULUL IN
CHUUK STATE.
A TYPHOON WATCH REMAINS IN EFFECT FOR ULUL IN CHUUK STATE.
A TYPHOON WATCH REMAINS IN EFFECT FOR GUAM, ROTA, TINIAN AND SAIPAN
IN THE MARIANAS.
A TYPHOON WARNING MEANS THAT TYPHOON CONDITIONS, INCLUDING WINDS
OF 74 MPH OR MORE, ARE OCCURRING.
A TROPICAL STORM WARNING MEANS THAT TROPICAL STORM CONDITIONS,
INCLUDING WINDS OF 39 TO 73 MPH, ARE EXPECTED WITHIN 24 HOURS.
A TYPHOON WATCH MEANS THAT TYPHOON CONDITIONS, INCLUDING WINDS OF 74
MPH OR MORE, ARE POSSIBLE WITHIN 48 HOURS.
A FLOOD WATCH REMAINS IN EFFECT FOR ALL OF GUAM AND THE NORTHERN
MARIANAS. PLEASE LISTEN CLOSELY FOR ANY FLASH FLOOD WARNINGS THAT
MIGHT BE IN EFFECT ONCE HEAVY RAINFALL ARRIVES.
PLEASE CHECK THE LATEST PUBLIC AND MARINE FORECASTS FOR DETAILED
INFORMATION ABOUT ADDITIONAL HAZARDS.
STORM INFORMATION
AS OF 700 AM CHST, THE CENTER OF TYPHOON SINLAKU (04W) WAS LOCATED
NEAR LATITUDE 9.5N AND LONGITUDE 151.3E. THIS WAS ABOUT 520 MILES
EAST-SOUTHEAST OF GUAM. STORM MOTION WAS NORTH-NORTHEAST, 15
DEGREES, AT 5 MPH. STORM INTENSITY WAS 110 MPH.
SITUATION OVERVIEW
TYPHOON SINLAKU (04W) IS SLOWLY MOVING AWAY FROM CHUUK STATE, WITH AN
EXPECTED PIVOT TO THE NORTH AND THEN NORTHWEST AS IT HEADS TOWARD THE
MARIANAS. IN THE MEANTIME, SINLAKU CONTINUES TO BRING PERIODS OF
INTENSE SHOWERS, THUNDERSTORMS, AND WINDS TO A LARGE PORTION OF CHUUK
STATE, PRIMARILY TO ULUL, FANANU, AND WENO, CHUUK. THE MOST
RECENT STORM TRACK PRODUCED BY JTWC INDICATES A SLIGHT NORTHWARD
SHIFT IN THE STORM PATH DURING ITS PASSAGE TOWARD THE MARIANAS,
NOW MORE LIKELY TO CROSS OVER ROTA. EVEN SO, IT IS STILL TOO EARLY
TO PROVIDE EXACT WIND AND SURGE FORCAST VALUES FOR ANY SPECIFIC
ISLAND IN THE MARIANAS.
PRECAUTIONARY/PREPAREDNESS ACTIONS
IN ORDER TO MAKE THE BEST DECISIONS, BE SURE THAT YOU UNDERSTAND THE
TERMINOLOGY AND DEFINITIONS ASSOCIATED WITH TROPICAL CYCLONE EVENTS.
NOW IS THE TIME TO FINALIZE YOUR PREPARATIONS ACCORDING TO YOUR
TYPHOON DISASTER PLAN SPECIFIC TO YOUR HOME OR BUSINESS. FOR THOSE
IN THE FAR NORTHERN MARIANAS, REVIEW YOUR TYPHOON DISASTER PLANS AND
BECOME READY TO ACT IF A WATCH OR A WARNING IS LATER ISSUED FOR YOUR
AREA.
STAY INDOORS DURING HEAVY RAIN AND WINDY CONDITIONS ASSOCIATED WITH
TYPHOON SINLAKU (04W). THE ONSET OF DAMAGING, AND POTENTIALLY
DESTRUCTIVE WINDS, WILL POSE A DEADLY THREAT TO THOSE VENTURING
OUTSIDE.
IT IS IMPORTANT TO ACTIVELY LISTEN FOR FORTHCOMING INFORMATION
FROM THE NATIONAL WEATHER SERVICE OFFICE IN TIYAN, GUAM, AND YOUR
LOCAL EMERGENCY MANAGEMENT AGENCY.
NEXT UPDATE
THE NEXT LOCAL STATEMENT WILL BE ISSUED BY THE NATIONAL WEATHER
SERVICE IN TIYAN AROUND 3 PM CHST...OR SOONER IF CONDITIONS
WARRANT.
GUZ001-MPZ001>003-120715-
/O.CON.PGUM.TY.A.4004.000000T0000Z-000000T0000Z/
GUAM-ROTA-TINIAN-SAIPAN-
906 AM CHST SUN APR 12 2026
..TYPHOON WATCH REMAINS IN EFFECT
..PRECAUTIONARY/PREPAREDNESS ACTIONS
ITEMS TO BRING TO A SHELTER INCLUDE A FIRST AID KIT, MEDICINES
AND PRESCRIPTIONS, BABY FOOD AND DIAPERS, GAMES AND BOOKS,
TOILETRIES, A BATTERY POWERED RADIO, A CELL PHONE, FLASHLIGHTS
WITH EXTRA BATTERIES, A BLANKET OR SLEEPING BAG FOR EACH PERSON,
PERSONAL IDENTIFICATION, COPIES OF KEY PAPERS SUCH AS INSURANCE
POLICIES, AVAILABLE CASH AND CREDIT CARDS. REMEMBER, PETS ARE NOT
ALLOWED IN MOST PUBLIC SHELTERS, SO CHECK AHEAD WITH YOUR
INTENDED SHELTER.
REGARDING YOUR HOME OR BUSINESS, COVER ALL WINDOWS AND DOORS WITH
SHUTTERS OR PLYWOOD. MOVE PATIO FURNITURE AND OTHER LOOSE OBJECTS
INDOORS. BRACE ALL EXTERIOR DOORS, INCLUDING GARAGE DOORS. DO
THIS AS EARLY AS POSSIBLE. IF YOU NEED TO MAKE A TRIP TO THE HARDWARE
STORE, THE GROCERY STORE, OR THE GAS STATION, DO SO AS EARLY AS
POSSIBLE.
STAY CALM AND KEEP INFORMED. COMPLY WITH ANY EVACUATION ORDERS THAT
ARE ISSUED FOR YOUR AREA. IF YOU LIVE IN A METAL ROOF OR CONTAINER
HOME, OR YOU LIVE IN A SURGE ZONE OR ANY LOCATION PRONE TO FLOODING,
EVACUATE TO A DESIGNATED SHELTER OR RIDE OUT THE STORM IN THE STURDY
HOME OF FAMILY OR FRIENDS OUTSIDE OF EVACUATION ZONES.
..WIND INFORMATION
AS TYPHOON SINLAKU (04W) MOVES CLOSER, THE THREAT FOR SUSTAINED HIGH
WINDS WILL CONTINUE TO INCREASE. THE LATEST FORECAST IS FOR TROPICAL
STORM FORCE WINDS TO BEGIN AFFECTING THE MARIANAS MONDAY AFTERNOON
AND EVENING. TYPHOON SINLAKU COULD POTENTIALLY CROSS THE MARIANAS AS
A CATEGORY 3 OR 4 TYPHOON. A GENERAL CONCERN SHOULD BE FOR THE
POSSIBILITY OF AT LEAST EXTENSIVE DAMAGE SOMEWHERE WITHIN THE
MARIANAS UNDER THE TYPHOON WATCH.
..COASTAL INUNDATION AND SURF INFORMATION
DUE TO HIGHER ASTRONOMICAL TIDES NEXT WEEK AND PRE-EXISTING ELEVATED
SEAS DUE TO NON-TC FEATURES IN THE AREA, HAZARDOUS SURF IS LIKELY TO
BECOME DANGEROUS ACROSS NORTH, EAST AND SOUTH REEFS IN THE MARIANAS
AS SURF BUILDS TO 15 FEET, AND POTENTIALLY SPREADING TO WEST FACING
REEFS ONCE TY SINLAKU MOVES WEST OF THE ISLANDS. COASTAL INUNDATION
IS BECOMING MORE LIKELY, NOW POSSIBLE AS EARLY AS MONDAY MORNING; AS
SUCH, A COASTAL FLOOD WATCH REMAINS IN EFFECT BEGINNING MONDAY
MORNING FOR SIGNIFICANT COASTAL INUNDATION OF 2 FEET OR MORE
POSSIBLE. INLAND FLOODING MADE WORSE BY DEVELOPING RAIN BANDS DURING
STORM PASSAGE WILL SIGNIFICANTLY INCREASE COASTAL INUNDATION AS RAIN
RUN-OFF AND STORM SURGE INTERACT. SURF WILL BE SLOW TO DECREASE AFTER
SINLAKU'S EXIT TO THE NORTHWEST IN THE SECOND HALF OF THE WEEK, AS
SWELLS WILL CONTINUE TO PUMMEL WESTERN MARIANAS SHORES.
..OTHER STORM EFFECTS
HEAVY, INTENSE RAINFALL WITH TY SINLAKU IS LIKELY FOR MUCH OF THE
WEEK, WITH RAINFALL AMOUNTS UPWARDS OF 15 TO 20 INCHES NEAR THE
CENTER, AS THE SYSTEM CROSSES THE MARIANAS. THE EXACT TRACK OF
SINLAKU WILL DETERMINE WHERE THE HEAVIEST RAINFALL WILL SET UP ACROSS
THE ISLANDS. AS SUCH, A FLOOD WATCH REMAINS IN EFFECT FOR GUAM,
ROTA, TINIAN, AND SAIPAN. SEE LATEST FORECAST FOR LATEST INFORMATION.
LISTEN FOR POSSIBLE FLASH FLOOD WARNINGS FOR YOUR LOCATION, AND BE
READY TO ACT IF FLASH FLOODING DEVELOPS.
..CHUUK
..TROPICAL STORM WARNING REMAINS IN EFFECT FOR CHUUK
PRECAUTIONARY/PREPAREDNESS ACTIONS
STAY INDOORS DURING HEAVY RAIN AND WINDY CONDITIONS ASSOCIATED WITH
TYPHOON SINLAKU (04W). HEED THE ADVICE OF YOUR LOCAL EMERGENCY
MANAGERS AND OFFICIALS AND MONITOR FORECASTS BY YOUR LOCAL NATIONAL
WEATHER SERVICE OFFICE. REMAIN IN A STURDY SHELTER UNTIL THE ALL
CLEAR IS GIVEN.
..WIND INFORMATION
WINDS WILL BE SOUTH AT 30 TO 40 MPH WITH GUSTS TO 50 MPH AT WENO,
CHUUK TODAY, AS SINLAKU SLOWLY MOVES AWAY TO THE NORTHWEST. AS
SINLAKU CONTINUES TO MOVE SLOWLY THROUGH THE REGION AND TOWARDS THE
MARIANAS, TROPICAL STORM FORCE WINDS SHOULD BEGIN SUBSIDING THIS
AFTERNOON.
..COASTAL INUNDATION AND SURF INFORMATION
SEAS OF 12 TO 14 FEET ARE OCCURRING. THIS WILL RESULT IN DANGEROUS
SURF OF 13 TO 16 FEET ALONG SOUTH AND WEST-FACING REEFS, WITH UP TO 2
FEET OF INUNDATION LIKELY. ELSEWHERE, HAZARDOUS SURF OF 7 TO 9 FEET
ARE EXPECTED.
..OTHER STORM EFFECTS
SATELLITE MICROWAVE ESTIMATES AND MODEL GUIDANCE CONTINUE TO SUGGEST
THE POTENTIAL FOR HEAVY RAIN TO DECREASE THROUGH THIS AFTERNOON.
ADDITIONAL RAINFALL OF 3 TO 5 INCHES IS POSSIBLE THROUGH LATE THIS
AFTERNOON; THE ALREADY SATURATED SOILS WILL STILL POSE THE RISK FOR
ANY ADDITIONAL RAINFALL TO BECOME RUNOFF, INCREASING LIKELIHOOD FOR
SUDDEN FLASH FLOODS AND MAINTAINING A HIGH RISK FOR MUDSLIDES.
..FANANU
...TYPHOON WARNING REMAINS IN EFFECT FOR FANANU
PRECAUTIONARY/PREPAREDNESS ACTIONS
STAY INDOORS DURING HEAVY RAIN AND WINDY CONDITIONS ASSOCIATED WITH
TYPHOON SINLAKU (04W). HEED THE ADVICE OF YOUR LOCAL EMERGENCY
MANAGERS AND OFFICIALS, AND CONTINUE TO MONITOR FORECASTS BY YOUR
LOCAL NATIONAL WEATHER SERVICE OFFICE. REMAIN IN A STURDY SHELTER
UNTIL THE ALL CLEAR IS GIVEN. VENTURING OUTSIDE IS LIKELY TO POSE A
DEADLY THREAT TO LIFE.
WIND INFORMATION
AS TYPHOON SINLAKU MAINTAINS ITS NORTH-NORTHEAST COURSE BEFORE
TAKING A TURN TO THE NORTH AND THEN NORTHWEST, TYPHOON FORCE WINDS
AROUND 74 MPH WILL BE MAINTAINED THIS MORNING, POTENTIALLY DECREASING
IN THE AFTERNOON.
COASTAL INUNDATION AND SURF INFORMATION
SEAS OF 12 TO 18 FEET ARE POSSIBLE, WITH DANGEROUS SURF AND
SIGNIFICANT COASTAL INUNDATION AND BEACH EROSION EXPECTED.
OTHER STORM EFFECTS
ANOTHER 4 TO 6 INCHES OF ADDITIONAL RAINFALL IS POSSIBLE WITHIN THE
OUTER BANDS AS THE CENTER OF TY SINLAKU MOVES OFF TO THE NORTHWEST.
..ULUL
..TYPHOON WATCH REMAINS IN EFFECT FOR ULUL
..TROPICAL STORM WARNING REMAINS IN EFFECT FOR ULUL
.PRECAUTIONARY/PREPAREDNESS ACTIONS
STAY INDOORS DURING HEAVY RAIN AND WINDY CONDITIONS ASSOCIATED WITH
TYPHOON SINLAKU (04W). HEED THE ADVICE OF YOUR LOCAL EMERGENCY
MANAGERS AND OFFICIALS, AND CONTINUE TO MONITOR FORECASTS BY YOUR
LOCAL NATIONAL WEATHER SERVICE OFFICE. REMAIN IN A STURDY SHELTER
UNTIL THE ALL CLEAR IS GIVEN. VENTURING OUTSIDE IS LIKELY TO POSE A
DEADLY THREAT TO LIFE.
WIND INFORMATION
TROPICAL STORM FORCE WINDS CONTINUE AT ULUL, AS SINLAKU CONTINUES TO
DRIFT AWAY SLOWLY. DAMAGING WESTERLY WINDS OF 40 TO 55 MPH WILL
START TO DECREASE THIS AFTERNOON, BUT DAMAGING WINDS OF AT LEAST 40
MPH ARE EXPECTED THROUGH AT LEAST EARLY MONDAY MORNING, WITH WINDS
BECOMING MORE SOUTHWEST AND THEN SOUTH AS SINLAKU CONTINUES TO MOVE
AWAY TOWARD THE MARIANAS.
COASTAL INUNDATION AND SURF INFORMATION
SEAS OF 10 TO 16 FEET REMAIN POSSIBLE, WITH DANGEROUS SURF AND
SIGNIFICANT COASTAL INUNDATION AND BEACH EROSION EXPECTED.
OTHER STORM EFFECTS
ANOTHER 4 TO 6 INCHES OF ADDITIONAL RAINFALL IS IS POSSIBLE WITHIN
AS THE CENTER OF TY SINLAKU MOVES NORTHWEST TOWARDS THE MARIANAS.
MONTVILA
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