105
WTPQ81 PGUM 262308
HLSPQ1
URGENT - IMMEDIATE BROADCAST REQUESTED
TROPICAL STORM KROSA (12W) LOCAL STATEMENT
NATIONAL WEATHER SERVICE TIYAN GU
908 AM CHST SUN JUL 27 2025
..TROPICAL STORM KROSA MOVING NORTH AS IT SLOWLY STRENGTHENS
NEW INFORMATION
NONE.
AREAS AFFECTED
THIS LOCAL STATEMENT PROVIDES INFORMATION AND RECOMMENDED ACTIONS
FOR PEOPLE IN THE FAR NORTHERN MARIANAS.
WATCHES/WARNINGS
A TROPICAL STORM WARNING REMAINS IN EFFECT FOR AGRIHAN, PAGAN, AND
ALAMAGAN.
A TROPICAL STORM WARNING MEANS THAT TROPICAL STORM CONDITIONS,
INCLUDING WINDS OF 39 TO 73 MPH, ARE IMMINENT OR OCCURRING.
STORM INFORMATION
AT 7 AM CHST...THE CENTER OF TROPICAL STORM KROSA (12W) WAS LOCATED
NEAR LATITUDE 19.8N...LONGITUDE 144.8E, ABOUT 90 MILES NORTHWEST OF
AGRIHAN AND 330 MILES NORTH OF SAIPAN. STORM MOTION WAS NORTH AT 9
MPH. MAXIMUM SUSTAINED WINDS INCREASED TO 65 MPH.
SITUATION OVERVIEW
TROPICAL STORM KROSA IS EXPECTED TO CONTINUE MOVING TOWARD THE NORTH
WITH AN INCREASE IN FORWARD SPEED THROUGH MONDAY, REMAINING NEAR
ENOUGH TO THE FAR NORTHERN CNMI TO MAINTAIN TROPICAL STORM FORCE
WINDS AT ALAMAGAN INTO THIS AFTERNOON, AT PAGAN INTO MID-AFTERNOON
AND AT AGRIHAN INTO EARLY EVENING. TROPICAL STORM FORCE WINDS ARE
ALREADY OCCURRING.
PRECAUTIONARY/PREPAREDNESS ACTIONS
REMAIN IN SUITABLE SHELTER, SUCH AS A HARDENED STRUCTURE OR CAVE,
WELL-PROTECTED FROM TROPICAL STORM WIND EXPOSURE. DO NOT LEAVE
SHELTER UNTIL INSTRUCTED TO DO SO BY EMERGENCY MANAGEMENT OFFICIALS.
STRONG MONSOON WINDS WILL LIKELY PERSIST AFTER THE PASSAGE OF
TROPICAL STORM KROSA.
NEXT UPDATE
THE NEXT LOCAL STATEMENT WILL BE ISSUED AT 3 PM CHST, OR SOONER IF
CONDITIONS WARRANT.
..AGRIHAN AND PAGAN
..A TROPICAL STORM WARNING REMAINS IN EFFECT
PRECAUTIONARY/PREPAREDNESS ACTIONS
REMAIN IN A SUITABLE HARDENED SHELTER, IDEALLY A CONCRETE STRUCTURE
OR CAVE. SUFFICIENT FOOD AND WATER FOR EACH PERSON FOR A DAY OR TWO
SHOULD BE AVAILABLE, BECAUSE A MONSOON SURGE IS LIKELY TO CONTINUE
FOR A WHILE AFTER TROPICAL STORM KROSA HAS PASSED.
WIND INFORMATION
THE LATEST FORECAST TRACK SHOWS KROSA MOVING GENERALLY NORTHWARD,
PASSING JUST TO THE EAST OF FARALLON DE PAJAROS THIS AFTERNOON, THEN
TURNING TOWARDS THE NORTHWEST MONDAY. LATEST FORECAST PROJECTIONS
SHOW SOUTHERLY TROPICAL STORM WINDS OF 50 TO 60 MPH ARE OCCURRING AT
AGRIHAN. THESE WINDS WILL BEGIN TO SUBSIDE LATER THIS MORNING. PAGAN
HAS LIKELY ALREADY SEEN THEIR HIGHEST WINDS. AS THE WINDS GRADUALLY
SUBSIDE, THEY WILL TURN SOUTHWEST. WIDESPREAD LOCALLY HEAVY SHOWERS
AND THUNDERSTORMS WILL STILL BRING FREQUENT STRONGER GUSTS. AFTER TS
KROSA DEPARTS THE AREA, A STRONG SOUTHWEST MONSOON PATTERN WILL
PROLONG WINDY CONDITIONS THROUGH MONDAY.
COASTAL INUNDATION AND SURF INFORMATION
DANGEROUS SURF ALONG SOUTH AND WEST FACING REEFS IS LIKELY PEAKING
RIGHT NOW AT AGRIHAN, WITH SURF HEIGHTS EXPECTED TO BE BETWEEN 15
AND 20 FT. SURF IS ALREADY SUBSIDING AT PAGAN AND WILL BEGIN TO
SUBSIDE LATER TODAY AT AGRIHAN, POSSIBLY FALLING BELOW DANGEROUS
LEVELS BY TONIGHT. SURF ALONG SOUTH AND WEST FACING REEFS WILL LIKELY
REMAIN AT HAZARDOUS LEVELS OF 10 TO 14 FEET INTO MONDAY. RIP
CURRENTS DURING THIS TIME WILL BE STRONG AND LIFE THREATENING. STAY
OUT OF THE WATER. WIND AND WAVE-DRIVEN COASTAL INUNDATION OF 3 TO 5
FT WILL BE LIKELY ALONG WINDWARD SHORES, ESPECIALLY AROUND TIMES OF
HIGH TIDE.
OTHER STORM EFFECTS
WIDESPREAD LOCALLY HEAVY SHOWERS WILL CONTINUE TODAY AS TS KROSA
CONTINUES NORTH, WITH THE BULK OF RAINFALL EXPECTED INTO EARLY
AFTERNOON, WITH 2 TO 4 INCHES POSSIBLE BY MID-AFTERNOON. ADDITIONAL
RAINFALL ACCUMULATIONS OF 2 TO 4 INCHES ARE POSSIBLE THROUGH MONDAY.
EVEN AFTER KROSA MOVES FARTHER AWAY TODAY AND MONDAY, A WET MONSOON
PATTERN WILL PROLONG SHOWERS ACROSS THE ISLANDS.
..ALAMAGAN
..A TROPICAL STORM WARNING REMAINS IN EFFECT
PRECAUTIONARY/PREPAREDNESS ACTIONS
REMAIN IN A SUITABLE HARDENED SHELTER, IDEALLY A CONCRETE STRUCTURE
OR CAVE. SUFFICIENT FOOD AND WATER FOR EACH PERSON FOR A DAY OR TWO
SHOULD BE AVAILABLE, BECAUSE A MONSOON SURGE IS LIKELY TO CONTINUE
FOR A WHILE AFTER TROPICAL STORM KROSA HAS PASSED.
WIND INFORMATION
THE LATEST FORECAST TRACK SHOWS KROSA MOVING GENERALLY NORTHWARD,
PASSING JUST TO THE EAST OF FARALLON DE PAJAROS THIS AFTERNOON, THEN
TURNING TOWARDS THE NORTHWEST MONDAY. LATEST FORECAST PROJECTIONS
SHOW SOUTHWEST TROPICAL STORM WINDS OF 35 TO 45 MPH ARE OCCURRING
AT ALAMAGAN. WIND SPEEDS WILL CONTINUE TO DIMINISH AS THE DAY
CONTINUES, LIKELY FALLING BELOW TROPICAL STORM STRENGTH EARLY THIS
AFTERNOON. WIDESPREAD LOCALLY HEAVY SHOWERS AND THUNDERSTORMS WILL
BRING FREQUENT STRONGER GUSTS. AFTER TS KROSA DEPARTS THE AREA, A
STRONG SOUTHWEST MONSOON PATTERN WILL PROLONG WINDY CONDITIONS
THROUGH MONDAY.
COASTAL INUNDATION AND SURF INFORMATION
DANGEROUS SURF ALONG SOUTH AND WEST FACING REEFS PEAKED AT 15 TO 20
FEET EARLY THIS MORNING. SURF HEIGHTS ARE NOW SUBSIDING COULD FALL
BELOW DANGEROUS LEVELS THIS EVENING. SURF ALONG SOUTH AND WEST
FACING REEFS WILL LIKELY REMAIN AT HAZARDOUS LEVELS OF 10 TO 14 FEET
INTO MONDAY. RIP CURRENTS DURING THIS TIME WILL BE STRONG AND LIFE
THREATENING. STAY OUT OF THE WATER. WIND AND WAVE-DRIVEN COASTAL
INUNDATION OF 2 TO 4 FT WILL BE LIKELY ALONG WINDWARD SHORES,
ESPECIALLY AROUND TIMES OF HIGH TIDE.
OTHER STORM EFFECTS
WIDESPREAD LOCALLY HEAVY SHOWERS WILL CONTINUE TODAY AS TS KROSA
CONTINUES NORTHWARD, WITH THE BULK OF RAINFALL EXPECTED THROUGH
TONIGHT. TOTAL RAINFALL ACCUMULATIONS OF 3 TO 5 INCHES ARE POSSIBLE
THROUGH MONDAY. EVEN AFTER KROSA MOVES FARTHER AWAY TODAY AND
MONDAY, A WET MONSOON PATTERN WILL PROLONG SHOWERS ACROSS THE
ISLAND.
KLEESCHULTE
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