288
WTUS82 KCHS 291533
HLSCHS
GAZ099>101-114>119-137>141-SCZ042>045-047>052-292345-
HURRICANE IDALIA LOCAL STATEMENT ADVISORY NUMBER 12
NATIONAL WEATHER SERVICE CHARLESTON SC AL102023
1133 AM EDT TUE AUG 29 2023
THIS PRODUCT COVERS SOUTHEAST SOUTH CAROLINA AND SOUTHEAST GEORGIA
**IDALIA IS EXPECTED TO BRING IMPACTS TO THE REGION WEDNESDAY THROUGH
THURSDAY MORNING**
NEW INFORMATION
---------------
* CHANGES TO WATCHES AND WARNINGS:
- THE TROPICAL STORM WATCH HAS BEEN UPGRADED TO A TROPICAL STORM
WARNING FOR BEAUFORT, BULLOCH, CHARLESTON, COASTAL BRYAN,
COASTAL CHATHAM, COASTAL COLLETON, COASTAL JASPER, COASTAL
LIBERTY, COASTAL MCINTOSH, EFFINGHAM, EVANS, INLAND BERKELEY,
INLAND BRYAN, INLAND CHATHAM, INLAND JASPER, INLAND LIBERTY,
INLAND MCINTOSH, LONG, TATTNALL, AND TIDAL BERKELEY
- A TROPICAL STORM WARNING HAS BEEN ISSUED FOR CANDLER,
DORCHESTER, HAMPTON, AND INLAND COLLETON
* CURRENT WATCHES AND WARNINGS:
- A TROPICAL STORM WARNING AND STORM SURGE WATCH ARE IN EFFECT
FOR BEAUFORT, CHARLESTON, COASTAL BRYAN, COASTAL CHATHAM,
COASTAL COLLETON, COASTAL JASPER, COASTAL LIBERTY, AND COASTAL
MCINTOSH
- A TROPICAL STORM WARNING IS IN EFFECT FOR BULLOCH, CANDLER,
DORCHESTER, EFFINGHAM, EVANS, HAMPTON, INLAND BERKELEY, INLAND
BRYAN, INLAND CHATHAM, INLAND COLLETON, INLAND JASPER, INLAND
LIBERTY, INLAND MCINTOSH, LONG, TATTNALL, AND TIDAL BERKELEY
* STORM INFORMATION:
- ABOUT 640 MILES SOUTH-SOUTHWEST OF CHARLESTON SC OR ABOUT 560
MILES SOUTH-SOUTHWEST OF SAVANNAH GA
- 24.6N 84.8W
- STORM INTENSITY 85 MPH
- MOVEMENT NORTH OR 5 DEGREES AT 14 MPH
SITUATION OVERVIEW
------------------
HURRICANE IDALIA WILL CONTINUE TO TRACK NORTHWARD ACROSS THE
EASTERN GULF OF MEXICO WHILE FURTHER STRENGTHENING THROUGH TONIGHT.
IDALIA IS THEN FORECAST TO MAKE LANDFALL AS A MAJOR HURRICANE IN THE
BIG BEND REGION OF FLORIDA WEDNESDAY MORNING. AFTER MAKING LANDFALL,
IDALIA IS EXPECTED TO TRACK OVER SOUTHEAST GEORGIA AND JUST INLAND
ACROSS THE SOUTHEAST SOUTH CAROLINA COASTLINE WEDNESDAY EVENING
THROUGH EARLY THURSDAY MORNING.
LOCAL IMPACTS FROM IDALIA WILL BEGIN AS EARLY AS WEDNESDAY MORNING AS
HEAVY RAINFALL BEGINS TO OVERSPREAD SOUTHEAST GEORGIA AND SOUTHEAST
SOUTH CAROLINA FROM SOUTHWEST TO NORTHEAST. HEAVY RAINFALL WILL THEN
CONTINUE THROUGH WEDNESDAY NIGHT ACROSS THE REGION WITH 4 TO 8 INCHES
OF RAINFALL ANTICIPATED, WITH LOCALLY GREATER AMOUNTS POSSIBLE.
TROPICAL STORM FORCE WINDS ARE EXPECTED TO DEVELOP ACROSS SOUTHEAST
GEORGIA LATE WEDNESDAY MORNING, ESPECIALLY ALONG THE COAST, WITH
CONDITIONS DETERIORATING WEDNESDAY AFTERNOON AND INTO WEDNESDAY NIGHT
AS TROPICAL STORM FORCE WINDS SPREAD UP THE COAST AND INTO PORTIONS OF
SOUTHEAST SOUTH CAROLINA. TORNADOES WILL BE POSSIBLE ACROSS THE AREA
WEDNESDAY AFTERNOON AND WEDNESDAY NIGHT, PARTICULARLY ALONG THE COAST,
AND WATERSPOUTS WILL BE POSSIBLE ACROSS THE ADJACENT ATLANTIC COASTAL
WATERS. FINALLY, THERE IS THE POTENTIAL FOR STORM SURGE WEDNESDAY
EVENING THROUGH EARLY THURSDAY MORNING ALONG THE SOUTHEAST GEORGIA AND
SOUTHEAST SOUTH CAROLINA COASTS, WHERE INUNDATION UP TO 4 FEET ABOVE
GROUND LEVEL IS POSSIBLE.
POTENTIAL IMPACTS
-----------------
* FLOODING RAIN:
PROTECT AGAINST LIFE-THREATENING RAINFALL FLOODING HAVING POSSIBLE
EXTENSIVE IMPACTS ACROSS SOUTHEAST SOUTH CAROLINA AND SOUTHEAST
GEORGIA. POTENTIAL IMPACTS INCLUDE:
- MAJOR RAINFALL FLOODING COULD PROMPT MANY RESCUES.
- RIVERS AND TRIBUTARIES COULD RAPIDLY OVERFLOW THEIR BANKS IN
MULTIPLE LOCATIONS. SMALL STREAMS, CREEKS, CANALS, DITCHES MAY
BECOME DANGEROUS RIVERS. FLOOD CONTROL SYSTEMS AND BARRIERS
COULD BECOME STRESSED.
- FLOOD WATERS COULD ENTER MANY STRUCTURES WITHIN MULTIPLE
COMMUNITIES; SOME STRUCTURES BECOME UNINHABITABLE OR ARE WASHED
AWAY. FLOOD WATERS COULD COVER MULTIPLE 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.
- DRINKING WATER AND SEWER SERVICES COULD BE NEGATIVELY IMPACTED.
- HAZARDOUS CONTAINERS AND MATERIALS COULD POSSIBLY BE PRESENT IN
FLOOD WATERS.
* SURGE:
PROTECT AGAINST LIFE-THREATENING SURGE HAVING POSSIBLE SIGNIFICANT
IMPACTS ACROSS COASTAL AREAS OF SOUTHEAST GEORGIA AND SOUTHEAST SOUTH CAROLINA.
POTENTIAL IMPACTS IN THIS AREA INCLUDE:
- AREAS OF INUNDATION OF SALTWATER ALONG IMMEDIATE SHORELINES AND
IN LOW-LYING SPOTS FARTHER INLAND NEAR RIVERS AND CREEKS, 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 NORMALLY VULNERABLE LOW
SPOTS.
- MODERATE TO MAJOR BEACH EROSION WITH HEAVY SURF BREACHING
DUNES. STRONG AND NUMEROUS RIP CURRENTS.
- MINOR TO MODERATE DAMAGE TO MARINAS, DOCKS, BOARDWALKS, AND
PIERS. SEVERAL SMALL CRAFT BROKEN AWAY FROM MOORINGS,
ESPECIALLY IN UNPROTECTED ANCHORAGES. SOME NAVIGATION AIDS
POSSIBLY DISPLACED WELL OFF STATION, CREATING DIFFICULT
NAVIGATION NEAR INLETS AND WATERWAYS.
* WIND:
PROTECT AGAINST LIFE-THREATENING WIND HAVING POSSIBLE EXTENSIVE
IMPACTS ACROSS SOUTHEAST GEORGIA AND SOUTHEAST SOUTH CAROLINA. POTENTIAL IMPACTS IN
THIS AREA INCLUDE:
- CONSIDERABLE ROOF DAMAGE TO STURDY BUILDINGS, WITH SOME WINDOW,
DOOR, AND GARAGE DOOR FAILURES LEADING TO STRUCTURAL DAMAGE.
MOBILE HOMES SEVERELY DAMAGED, WITH SOME DESTROYED. DAMAGE
ACCENTUATED BY AIRBORNE PROJECTILES. SOME LOCATIONS MAY BE
UNINHABITABLE FOR WEEKS.
- DANGER OF DEATH OR INJURY FROM FALLING OBJECTS AND AIRBORNE
PROJECTILES OUTSIDE.
- LARGE TREES SNAPPED OR UPROOTED.
- SOME ROADS IMPASSABLE FROM LARGE DEBRIS, AND MORE WITHIN URBAN
OR HEAVILY WOODED LOCATIONS. SEVERAL BRIDGES AND ACCESS ROUTES
IMPASSABLE.
- LARGE AREAS WITH POWER AND COMMUNICATIONS OUTAGES, WHICH COULD
PERSIST FOR DAYS.
- SEVERAL SECURED SMALL CRAFT COULD BREAK FREE FROM MOORINGS.
* TORNADOES:
PROTECT AGAINST A DANGEROUS TORNADO EVENT HAVING POSSIBLE SIGNIFICANT
IMPACTS ACROSS SOUTHEAST GEORGIA AND SOUTHEAST SOUTH CAROLINA. POTENTIAL IMPACTS
INCLUDE:
- ISOLATED TO SCATTERED TORNADOES CAN HINDER THE EXECUTION OF
EMERGENCY PLANS.
- SCATTERED LOCATIONS COULD EXPERIENCE ENHANCED DAMAGE DUE TO
TORNADOES WITH A FEW SPOTS OF CONSIDERABLE DAMAGE, POWER LOSS,
AND COMMUNICATIONS FAILURES.
- SCATTERED 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.
* OTHER COASTAL HAZARDS:
PREPARE FOR ADDITIONAL COASTAL HAZARDS ALONG THE ENTIRE SOUTHEAST
GEORGIA AND SOUTHEAST SOUTH CAROLINA COASTLINE INCLUDING DANGEROUS
RIP CURRENTS, HIGH SURF, AND BEACH EROSION.
PRECAUTIONARY/PREPAREDNESS ACTIONS
----------------------------------
* EVACUATIONS:
LISTEN TO LOCAL OFFICIAL FOR RECOMMENDED PREPAREDNESS ACTIONS,
INCLUDING POSSIBLE EVACUATION. IF ORDERED TO EVACUATE, DO SO IMMEDIATELY.
* 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.
WHEN MAKING SAFETY AND PREPAREDNESS DECISIONS, DO NOT FOCUS ON THE
EXACT FORECAST TRACK SINCE HAZARDS SUCH AS FLOODING RAIN, DAMAGING
WIND GUSTS, STORM SURGE, AND TORNADOES EXTEND WELL AWAY FROM THE
CENTER OF THE STORM.
* 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 CHARLESTON SC AROUND 6 PM EDT, OR SOONER IF CONDITIONS
WARRANT.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page