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WTHW80 PHFO 080004
HLSHFO
HIZ001-003-004-006-007-009>011-015>018-022-023-026>054-080815-
HURRICANE LOWELL LOCAL STATEMENT INTERMEDIATE ADVISORY NUMBER 47A
NATIONAL WEATHER SERVICE HONOLULU HI EP122026
204 PM HST MON SEP 7 2026
THIS PRODUCT COVERS THE HAWAIIAN ISLANDS
**LOWELL MOVING CLOSER TO HAWAIIAN ISLANDS AND EXPECTED TO PRODUCE
FLASH FLOODING DAMAGING WAVES AND HIGH WINDS**
NEW INFORMATION
---------------
* CHANGES TO WATCHES AND WARNINGS:
- NONE
* CURRENT WATCHES AND WARNINGS:
- A HURRICANE WARNING IS IN EFFECT FOR KAUAI EAST, KAUAI
MOUNTAINS, KAUAI NORTH, KAUAI SOUTH, KAUAI SOUTHWEST, AND NIIHAU
- A TROPICAL STORM WARNING IS IN EFFECT FOR CENTRAL OAHU, EAST
HONOLULU, EWA PLAIN, HONOLULU METRO, KOOLAU LEEWARD, KOOLAU
WINDWARD, OAHU NORTH SHORE, OLOMANA, WAIANAE COAST, AND WAIANAE
MOUNTAINS
* STORM INFORMATION:
- ABOUT 230 MILES SOUTHWEST OF LIHUE OR ABOUT 270 MILES
WEST-SOUTHWEST OF HONOLULU
- 19.4N 161.6W
- STORM INTENSITY 110 MPH
- MOVEMENT NORTH-NORTHEAST OR 30 DEGREES AT 18 MPH
SITUATION OVERVIEW
------------------
HURRICANE LOWELL CONTINUES TO ACCELERATE TOWARD THE NORTH-NORTHEAST
AND APPROACH THE AREA. AS THE CENTER OF LOWELL PASSES SOUTHWEST THEN
WEST OF NIIHAU THROUGH TONIGHT, EXPECT DAMAGING WINDS, HEAVY FLOODING
RAINFALL, AND EXTREMELY DANGEROUS AND DAMAGING SURF TO DEVELOP OVER
PORTIONS OF THE HAWAIIAN ISLANDS INTO TUESDAY MORNING. A HURRICANE
WARNING REMAINS IN EFFECT FOR KAUAI AND NIIHAU, AND A TROPICAL STORM
WARNING IS IN EFFECT FOR OAHU. PREPARATIONS SHOULD BE RUSHED TO
COMPLETION IN THE WARNED AREAS.
EAST TO SOUTHEAST WINDS WILL GRADUALLY STRENGTHEN OVER THE WESTERN
HALF OF THE HAWAIIAN ISLANDS THROUGH THE AFTERNOON. SEVERAL STATIONS
ON SOUTHERN KAUAI, INCLUDING LIHUE AIRPORT, ARE ALREADY MEASURING
SUSTAINED WINDS OF 30 MPH OR MORE WITH GUSTS OVER 40 MPH. DAMAGING
TROPICAL STORM FORCE WINDS COULD DEVELOP AS EARLY AS LATE THIS
AFTERNOON ACROSS KAUAI COUNTY AND EARLY THIS EVENING ON OAHU.
HURRICANE CONDITIONS ARE EXPECTED OVER PORTIONS OF KAUAI COUNTY
OVERNIGHT, WITH THE HIGHEST PROBABILITY OF HURRICANE FORCE WINDS
OCCURRING ON NIIHAU. IT IS IMPORTANT TO NOTE THAT WINDS CAN BE
ACCELERATED OVER AND DOWNWIND OF TERRAIN, LEADING TO AREAS OF
HURRICANE FORCE WIND GUSTS. AS WINDS SHIFT FROM EAST TO SOUTHEAST THIS
AFTERNOON TO SOUTH OVERNIGHT, AREAS AFFECTED BY DOWNSLOPE WIND GUSTS
WILL LIKELY CHANGE.
A BROAD SHIELD OF DEEP TROPICAL MOISTURE SURROUNDING LOWELL WILL
CONTINUE TO SPREAD OVER ALL HAWAIIAN ISLANDS THROUGH TONIGHT,
INCREASING THE THREAT OF HEAVY RAIN AND ISOLATED THUNDERSTORMS. HEAVY
DOWNPOURS COULD LEAD TO FLASH FLOODING AND/OR MUDSLIDES, ESPECIALLY IN
STEEP TERRAIN, AND FLASH FLOODING HAS ALREADY BEEN REPORTED ON
PORTIONS OF KAUAI. RAINBANDS COULD BECOME PERSISTENT AND ANCHORED IN
SOME AREAS, EXACERBATING THE FLASH FLOOD THREAT. THE RISK OF FLASH
FLOODING AND MUDSLIDES IS GREATEST FOR KAUAI AND NIIHAU, BUT ALSO
EXISTS FOR ALL OTHER ISLANDS DUE TO THE EXTENT OF THE MOISTURE
ASSOCIATED WITH LOWELL. OVER 15 INCHES OF RAIN IS POSSIBLE OVER
PORTIONS OF KAUAI, MAINLY OVER THE INTERIOR MOUNTAINS. A FOOT OR MORE
REMAINS POSSIBLE OVER SOUTHEAST BIG ISLAND.
AN EXTREMELY LARGE SOUTH TO SOUTHWEST SWELL GENERATED BY LOWELL WILL
RAPIDLY BUILD THROUGH THE REMAINDER OF THE DAY AND PEAK TONIGHT OVER
PORTIONS OF HAWAIIAN WATERS. A HIGH SURF WARNING IS IN EFFECT FOR
SOUTH-FACING SHORES OF ALL ISLANDS AND FOR WEST-FACING SHORES OF THE
BIG ISLAND. DANGEROUSLY LARGE AND DAMAGING SURF AND COASTAL INUNDATION
ARE EXPECTED ALONG THE IMMEDIATE COAST OF EXPOSED SOUTH- AND
WEST-FACING SHORES, PARTICULARLY ON KAUAI AND NIIHAU, AND POSSIBLY
OAHU. THE HIGHEST SURF MAY REACH 20 TO 30 FEET ON KAUAI AND NIIHAU
TONIGHT, THEN RAPIDLY DIMINISH ON TUESDAY. EXTRA LARGE SURF, ON TOP OF
1 TO 4 FEET OF STORM SURGE AND PEAK AFTERNOON HIGH TIDES, WILL
GENERATE MAJOR WAVE RUN-UP AND COASTAL INUNDATION ALONG EXPOSED LOW
LYING AREAS OF SOUTH- AND WEST-FACING SHORES, PARTICULARLY FOR KAUAI
AND NIIHAU, AND POSSIBLY FOR OAHU.
CONDITIONS WILL BE CONDUCIVE FOR FAST-MOVING, SHORT-LIVED WATERSPOUTS
AND TORNADOES IN THE RAINBANDS ASSOCIATED WITH LOWELL, ESPECIALLY NEAR
KAUAI AND NIIHAU. THIS THREAT WILL CONTINUE THROUGH TONIGHT, THEN
DIMINISH QUICKLY TUESDAY MORNING.
POTENTIAL IMPACTS
-----------------
* WIND:
PROTECT AGAINST LIFE-THREATENING WIND HAVING POSSIBLE EXTENSIVE
IMPACTS ACROSS NIIHAU AND KAUAI. POTENTIAL IMPACTS IN THIS AREA
INCLUDE:
- CONSIDERABLE ROOF DAMAGE TO STURDY BUILDINGS, WITH SOME HAVING
WINDOW, DOOR, AND GARAGE DOOR FAILURES LEADING TO STRUCTURAL
DAMAGE. MOBILE HOMES SEVERELY DAMAGED, WITH SOME DESTROYED.
DAMAGE ACCENTUATED BY AIRBORNE PROJECTILES. LOCATIONS MAY BE
UNINHABITABLE FOR WEEKS.
- MANY LARGE TREES SNAPPED OR UPROOTED ALONG WITH FENCES AND
ROADWAY SIGNS BLOWN OVER.
- SOME ROADS IMPASSABLE FROM LARGE DEBRIS, AND MORE WITHIN URBAN
OR HEAVILY WOODED PLACES. SEVERAL BRIDGES, CAUSEWAYS, AND
ACCESS ROUTES IMPASSABLE.
- LARGE AREAS WITH POWER AND COMMUNICATIONS OUTAGES.
ALSO, PROTECT AGAINST DANGEROUS WIND HAVING POSSIBLE LIMITED TO
SIGNIFICANT IMPACTS ACROSS OAHU.
* FLOODING RAIN:
PROTECT AGAINST LIFE-THREATENING RAINFALL FLOODING HAVING POSSIBLE
EXTENSIVE IMPACTS ACROSS NIIHAU AND KAUAI. POTENTIAL IMPACTS INCLUDE:
- MAJOR RAINFALL FLOODING MAY PROMPT MANY EVACUATIONS AND RESCUES.
- RIVERS AND TRIBUTARIES MAY RAPIDLY OVERFLOW THEIR BANKS IN
MULTIPLE PLACES. SMALL STREAMS, CREEKS, CANALS, ARROYOS, AND
DITCHES MAY BECOME DANGEROUS RIVERS. IN MOUNTAIN AREAS,
DESTRUCTIVE RUNOFF MAY RUN QUICKLY DOWN VALLEYS WHILE
INCREASING SUSCEPTIBILITY TO ROCKSLIDES AND MUDSLIDES. FLOOD
CONTROL SYSTEMS AND BARRIERS MAY BECOME STRESSED.
- FLOOD WATERS CAN ENTER MANY STRUCTURES WITHIN MULTIPLE
COMMUNITIES, SOME STRUCTURES BECOMING UNINHABITABLE OR WASHED
AWAY. MANY PLACES WHERE FLOOD WATERS MAY COVER ESCAPE ROUTES.
STREETS AND PARKING LOTS BECOME RIVERS OF MOVING WATER WITH
UNDERPASSES SUBMERGED. DRIVING CONDITIONS BECOME DANGEROUS.
MANY ROAD AND BRIDGE CLOSURES WITH SOME WEAKENED OR WASHED OUT.
PROTECT AGAINST DANGEROUS RAINFALL FLOODING HAVING POSSIBLE
SIGNIFICANT IMPACTS ACROSS ALL OTHER ISLANDS.
* SURGE:
PROTECT AGAINST LIFE-THREATENING SURGE HAVING POSSIBLE SIGNIFICANT
IMPACTS ACROSS NIIHAU AND KAUAI. POTENTIAL IMPACTS IN THIS AREA
INCLUDE:
- AREAS OF INUNDATION WITH STORM SURGE FLOODING ACCENTUATED BY
WAVES. DAMAGE TO SEVERAL BUILDINGS, MAINLY NEAR THE COAST.
- SECTIONS OF NEAR-SHORE ESCAPE ROUTES AND SECONDARY ROADS BECOME
WEAKENED OR WASHED OUT, ESPECIALLY IN USUALLY VULNERABLE LOW
SPOTS.
- MAJOR BEACH EROSION WITH HEAVY SURF OVERTOPPING NEARBY ROADWAYS.
- MODERATE DAMAGE TO MARINAS, DOCKS, AND PIERS. SEVERAL SMALL
CRAFT BROKEN AWAY FROM MOORINGS, ESPECIALLY IN UNPROTECTED
ANCHORAGES.
ELSEWHERE ACROSS THE HAWAIIAN ISLANDS, LITTLE TO NO IMPACT IS
ANTICIPATED.
* TORNADOES:
PREPARE FOR A DANGEROUS TORNADO EVENT HAVING POSSIBLE SIGNIFICANT
IMPACTS ACROSS NIIHAU AND KAUAI. POTENTIAL IMPACTS INCLUDE:
- THE OCCURRENCE OF SCATTERED TORNADOES CAN HINDER THE EXECUTION
OF EMERGENCY PLANS DURING TROPICAL EVENTS.
- SEVERAL PLACES MAY EXPERIENCE TORNADO DAMAGE WITH A FEW SPOTS
OF CONSIDERABLE DAMAGE, POWER LOSS, AND COMMUNICATIONS FAILURES.
- LOCATIONS COULD REALIZE ROOFS TORN OFF FRAME HOUSES, MOBILE
HOMES DEMOLISHED, BOXCARS OVERTURNED, LARGE TREES SNAPPED OR
UPROOTED, VEHICLES TUMBLED, AND SMALL BOATS TOSSED ABOUT.
DANGEROUS PROJECTILES CAN ADD TO THE TOLL.
PREPARE FOR A TORNADO EVENT HAVING POSSIBLE LIMITED IMPACTS ACROSS
THE REST OF THE MAIN HAWAIIAN ISLANDS FROM OAHU TO THE BIG ISLAND.
PRECAUTIONARY/PREPAREDNESS ACTIONS
----------------------------------
* EVACUATIONS:
FOLLOW THE ADVICE OF LOCAL OFFICIALS.
* OTHER PREPAREDNESS INFORMATION:
NOW IS THE TIME TO COMPLETE ALL PREPARATIONS TO PROTECT LIFE AND
PROPERTY IN ACCORDANCE WITH YOUR EMERGENCY PLAN. ENSURE YOU ARE IN A
SAFE LOCATION BEFORE THE ONSET OF STRONG WINDS OR POSSIBLE FLOODING.
IF YOU ARE RELOCATING TO SAFE SHELTER, LEAVE AS EARLY AS POSSIBLE.
ALLOW EXTRA TIME TO REACH YOUR DESTINATION. MANY ROADS AND BRIDGES
WILL BE CLOSED ONCE STRONG WINDS ARRIVE. CHECK THE LATEST WEATHER
FORECAST BEFORE DEPARTING AND DRIVE WITH CAUTION.
IF HEADING TO A COMMUNITY SHELTER, BECOME FAMILIAR WITH THE SHELTER
RULES BEFORE ARRIVAL, ESPECIALLY IF YOU HAVE SPECIAL NEEDS OR HAVE
PETS. TAKE ESSENTIAL ITEMS WITH YOU FROM YOUR EMERGENCY SUPPLIES KIT.
FAILURE TO ADEQUATELY SHELTER MAY RESULT IN SERIOUS INJURY OR LOSS OF
LIFE. ALWAYS HEED THE ADVICE OF LOCAL OFFICIALS AND COMPLY WITH ANY
ORDERS THAT ARE ISSUED. REMEMBER, DURING THE STORM 9 1 1 EMERGENCY
SERVICES MAY NOT BE ABLE TO IMMEDIATELY RESPOND IF CONDITIONS ARE
UNSAFE. THIS SHOULD BE A BIG FACTOR IN YOUR DECISION MAKING.
KEEP CELL PHONES WELL CHARGED. CELL PHONE CHARGERS FOR AUTOMOBILES
CAN BE HELPFUL, BUT BE AWARE OF YOUR RISK FOR DEADLY CARBON MONOXIDE
POISONING IF YOUR CAR IS LEFT IDLING IN A GARAGE OR OTHER POORLY
VENTILATED AREA.
IT IS IMPORTANT TO REMAIN CALM, INFORMED, AND FOCUSED DURING AN
EMERGENCY. BE PATIENT AND HELPFUL WITH THOSE YOU ENCOUNTER.
IF YOU ARE A VISITOR, BE SURE TO KNOW THE NAME OF THE CITY OR TOWN IN
WHICH YOU ARE STAYING AND THE NAME OF THE COUNTY OR PARISH IN WHICH
IT RESIDES. LISTEN FOR THESE LOCATIONS IN LOCAL NEWS UPDATES. PAY
ATTENTION FOR INSTRUCTIONS FROM LOCAL AUTHORITIES.
STORM SURGE IS THE LEADING KILLER ASSOCIATED WITH TROPICAL STORMS AND
HURRICANES! MAKE SURE YOU ARE IN A SAFE AREA AWAY FROM THE SURGE
ZONE. EVEN IF YOU ARE NOT IN A SURGE-PRONE AREA, YOU COULD FIND
YOURSELF CUTOFF BY FLOOD WATERS DURING AND AFTER THE STORM. HEED
EVACUATION ORDERS ISSUED BY THE LOCAL AUTHORITIES.
RAPIDLY RISING FLOOD WATERS ARE DEADLY. IF YOU ARE IN A FLOOD-PRONE
AREA, CONSIDER MOVING TO HIGHER GROUND. NEVER DRIVE THROUGH A FLOODED
ROADWAY. REMEMBER, TURN AROUND DON'T DROWN!
IF A TORNADO WARNING IS ISSUED FOR YOUR AREA, BE READY TO SHELTER
QUICKLY, PREFERABLY AWAY FROM WINDOWS AND IN AN INTERIOR ROOM NOT
PRONE TO FLOODING. IF DRIVING, SCAN THE ROADSIDE FOR QUICK SHELTER
OPTIONS.
IF IN A PLACE THAT IS VULNERABLE TO HIGH WIND, SUCH AS NEAR LARGE
TREES, A MANUFACTURED HOME, UPPER FLOORS OF A HIGH-RISE BUILDING, OR
ON A BOAT, CONSIDER MOVING TO A SAFER SHELTER BEFORE THE ONSET OF
STRONG WINDS OR FLOODING.
CLOSELY MONITOR WEATHER.GOV, NOAA WEATHER RADIO OR LOCAL NEWS OUTLETS
FOR OFFICIAL STORM INFORMATION. BE READY TO ADAPT TO POSSIBLE CHANGES
TO THE FORECAST. ENSURE YOU HAVE MULTIPLE WAYS TO RECEIVE WEATHER
WARNINGS.
* ADDITIONAL SOURCES OF INFORMATION:
- FOR INFORMATION ON APPROPRIATE PREPARATIONS SEE READY.GOV
- FOR INFORMATION ON CREATING AN EMERGENCY PLAN SEE GETAGAMEPLAN.ORG
- FOR ADDITIONAL DISASTER PREPAREDNESS INFORMATION SEE REDCROSS.ORG
NEXT UPDATE
-----------
THE NEXT LOCAL STATEMENT WILL BE ISSUED BY THE NATIONAL WEATHER
SERVICE IN HONOLULU HI AROUND 500 PM HST, OR SOONER IF CONDITIONS
WARRANT.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
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