933  
WTUS82 KTAE 300938  
HLSTAE  
ALZ065>069-FLZ007>019-026>029-034-108-112-114-115-118-127-128-134-GAZ120>131-142>148-155>161-301745-  
 
HURRICANE IDALIA LOCAL STATEMENT ADVISORY NUMBER 15  
NATIONAL WEATHER SERVICE TALLAHASSEE FL AL102023  
538 AM EDT WED AUG 30 2023 /438 AM CDT WED AUG 30 2023/  
 
THIS PRODUCT COVERS EASTERN FLORIDA PANHANDLE, FLORIDA BIG BEND, SOUTHEASTERN ALABAMA AND SOUTHWESTERN GEORGIA  
 
***EXTREMELY DANGEROUS CATEGORY 4 HURRICANE IDALIA APPROACHING LANDFALL IN  
THE FLORIDA BIG BEND THIS MORNING.***  
 
NEW INFORMATION  
---------------  
 
* CHANGES TO WATCHES AND WARNINGS:  
- NONE  
 
* CURRENT WATCHES AND WARNINGS:  
- A STORM SURGE WARNING AND HURRICANE WARNING ARE IN EFFECT FOR  
COASTAL DIXIE, COASTAL FRANKLIN, COASTAL JEFFERSON, COASTAL  
TAYLOR, AND COASTAL WAKULLA  
- A HURRICANE WARNING IS IN EFFECT FOR BERRIEN, BROOKS, COOK,  
INLAND DIXIE, INLAND JEFFERSON, INLAND TAYLOR, INLAND WAKULLA,  
LAFAYETTE, LANIER, LEON, LOWNDES, MADISON, AND THOMAS  
- A TROPICAL STORM WARNING IS IN EFFECT FOR BAKER, BEN HILL,  
COASTAL GULF, COLQUITT, DECATUR, DOUGHERTY, GADSDEN, GRADY,  
INLAND FRANKLIN, INLAND GULF, IRWIN, LEE, LIBERTY, MITCHELL,  
TIFT, TURNER, AND WORTH  
 
* STORM INFORMATION:  
- ABOUT 70 MILES SOUTH OF ST MARKS OR ABOUT 90 MILES SOUTH OF  
TALLAHASSEE  
- 29.1N 84.1W  
- STORM INTENSITY 130 MPH  
- MOVEMENT NORTH-NORTHEAST OR 25 DEGREES AT 18 MPH  
 
SITUATION OVERVIEW  
------------------  
 
ALL RESIDENTS NEED TO STAY IN SHELTER TODAY. PLEASE WAIT UNTIL  
OFFICIALS GIVE THE ALL CLEAR BEFORE VENTURING OUT.  
 
HURRICANE IDALIA CONTINUES TO STRENGTHEN FURTHER. AT 5 AM EDT, THE  
CENTER OF IDALIA WAS LOCATED OVER THE EASTERN GULF OF MEXICO ABOUT  
90 MILES SOUTH OF TALLAHASSEE, FLORIDA. IDALIA IS MOVING TO THE NORTH  
AT 18 MPH. IDALIA NOW HAS TOP SUSTAINED WINDS OF 130 MPH, WHICH IS A  
POTENTIALLY CATASTROPHIC CATEGORY 4 HURRICANE. ADDITIONAL STRENGTHENING  
IS STILL FORECAST THROUGH LANDFALL. IDALIA IS NOW FORECAST TO BE A  
POTENTIALLY CATASTROPHIC CATEGORY 4 HURRICANE AT LANDFALL.  
 
TO PUT THIS INTO HISTORICAL CONTEXT, THERE ARE NO MAJOR HURRICANES  
(CATEGORY 3+) IN THE HISTORICAL DATASET GOING BACK TO 1851 THAT HAVE  
TRACKED INTO APALACHEE BAY. THIS HAS THE MAKINGS OF AN UNPRECEDENTED  
EVENT FOR THIS PART OF THE STATE.  
 
AT THIS TIME, YOU NEED TO HUNKER DOWN AND SHELTER IN PLACE.  
ADDITIONALLY, WE WANT TO URGE THOSE ALONG THE I-75 CORRIDOR IN SOUTH  
GEORGIA TO PREPARE FOR POTENTIALLY DESTRUCTIVE HURRICANE-FORCE WINDS.  
THE CURRENT FORECAST CALLS FOR A STRONG CATEGORY 2 HURRICANE NEAR  
HOMERVILLE IN CLINCH COUNTY, WHICH BRINGS IT DANGEROUSLY CLOSE TO  
VALDOSTA AND LAKELAND. WIDESPREAD, SIGNIFICANT WIND DAMAGE AND  
PROLONGED POWER OUTAGES WILL BE POSSIBLE FROM THE EASTERN BIG BEND INTO  
OUR SOUTHERN GEORGIA COUNTIES AROUND VALDOSTA.  
 
LIFE-THREATENING AND CATASTROPHIC STORM SURGE IS EXPECTED AROUND THE  
SHORES OF APALACHEE BAY. FROM THE AUCILLA RIVER TO YANKEETOWN, STORM  
SURGE INUNDATION OF 12 TO 16 FEET IS POSSIBLE. STORM SURGE WILL BE  
HIGHLY DEPENDENT ON THE STORM TRACK, WITH THE HIGHEST SURGE VALUES  
ALONG AND TO THE RIGHT OF WHERE THE CENTER MAKES LANDFALL. STORM SURGE  
WILL PEAK TONIGHT AND WEDNESDAY.  
 
A STORM SURGE WARNING IS IN EFFECT FROM INDIAN PASS TO THE SUWANNEE  
RIVER FOR THE DANGER OF LIFE THREATENING INUNDATION FROM RISING WATER  
MOVING INLAND. STORM SURGE INUNDATION ABOVE NORMALLY DRY GROUND COULD  
REACH THE FOLLOWING HEIGHTS, IF THE PEAK SURGE OCCURS WITH HIGH TIDE:  
1 TO 3 FEET FROM MEXICO BEACH TO INDIAN PASS, 3 TO 5 FEET FROM INDIAN  
PASS TO CARRABELLE, 5 TO 8 FEET FROM CARRABELLE TO THE MOUTH OF THE  
OCHLOCKONEE RIVER, 8 TO 12 FEET FROM THE OCHLOCKONEE RIVER TO THE  
AUCILLA RIVER, AND 12 TO 16 FEET FROM THE AUCILLA RIVER TO THE  
SUWANNEE RIVER. THE DEEPEST WATER WILL OCCUR ALONG THE IMMEDIATE  
COAST, WHERE THE SURGE WILL BE ACCOMPANIED BY LARGE AND DANGEROUS  
WAVES.  
 
A HURRICANE WARNING IS IN EFFECT ALONG THE COAST FROM INDIAN PASS TO  
THE SUWANNEE RIVER, PLUS INLAND PORTIONS OF THE FLORIDA BIG BEND AND  
THE I-75 CORRIDOR OF SOUTH GEORGIA. A TROPICAL STORM WARNING IS IN  
EFFECT FROM MEXICO BEACH TO INDIAN PASS, PLUS INLAND PORTIONS OF  
SOUTHWEST GEORGIA AS FAR NORTHWEST AS BAINBRIDGE, CAMILLA, AND  
SYLVESTER.  
 
TROPICAL STORM FORCE WINDS ARE BEGINNING ALONG THE COAST, THESE WILL  
SPREAD INLAND THROUGH THE MORNING. EXPECT DOWNED TREES AND POWERLINES,  
POSSIBLY WIDESPREAD, ACROSS THE EASTERN BIG BEND INTO SOUTHERN GEORGIA  
AROUND VALDOSTA AND MOODY AIR FORCE BASE. NOW IS THE TIME TO SHELTER  
IN PLACE.  
 
RAINFALL AMOUNTS WILL BE HEAVIEST ALONG AND EAST OF THE TRACK OF  
IDALIA, ESPECIALLY IN THE FLORIDA BIG BEND INT SOUTH-CENTRAL GEORGIA.  
5 TO 8 INCHES OF RAIN ARE FORECAST, WITH ISOLATED HIGHER AMOUNTS UP TO  
12 INCHES POSSIBLE. THIS COULD LEAD TO LIFE THREATENING FLASH  
FLOODING. A FLOOD WATCH IS NOW IN EFFECT FROM GULF COUNTY, FL TO LEE  
COUNTY, GA AND ALL POINTS EASTWARD. RIVER FLOODING IS POSSIBLE IN THE  
OCHLOCKONEE, AUCILLA, SAINT MARKS, AND SUWANNEE BASINS, BUT FAST  
FORWARD MOTION OF THE STORMS WILL KEEP RIVER FLOODING MINOR.  
 
SEVERAL TORNADOES ARE POSSIBLE IN THE OUTER RAIN BANDS STARTING  
TONIGHT AND CONTINUING INTO WEDNESDAY. THIS WILL PRIMARILY BE NORTH  
AND EAST OF THE CENTER. A TORNADO WATCH IS IN EFFECT UNTIL 3PM EDT FOR  
LANIER AND LOWNDES COUNTIES AND FOR MADISON, TAYLOR, LAFAYETTE, AND  
DIXIE COUNTIES IN FLORIDA.  
 
LIFE-THREATENING RIP CURRENTS AND HIGH SURF ARE EXPECTED ALONG ALL  
BEACHES FOR AT LEAST THE NEXT COUPLE DAYS, WELL AWAY FROM THE CENTER.  
EVERYONE NEEDS TO STAY OUT OF THE WATER.  
 
POTENTIAL IMPACTS  
-----------------  
 
* SURGE:  
POTENTIAL IMPACTS FROM THE MAIN SURGE EVENT ARE NOW UNFOLDING ACROSS  
APALACHEE BAY. REMAIN WELL AWAY FROM LIFE-THREATENING SURGE,  
POSSIBLE CATASTROPHIC IMPACTS. IF REALIZED, THESE IMPACTS INCLUDE:  
 
- WIDESPREAD DEEP INUNDATION, WITH STORM SURGE FLOODING GREATLY  
ACCENTUATED BY POWERFUL BATTERING WAVES. STRUCTURAL DAMAGE TO  
BUILDINGS, WITH MANY WASHING AWAY. DAMAGE GREATLY COMPOUNDED  
FROM CONSIDERABLE FLOATING DEBRIS. LOCATIONS MAY BE  
UNINHABITABLE FOR AN EXTENDED PERIOD.  
- NEAR-SHORE ESCAPE ROUTES AND SECONDARY ROADS WASHED OUT OR  
SEVERELY FLOODED. FLOOD CONTROL SYSTEMS AND BARRIERS MAY BECOME  
STRESSED.  
- EXTREME BEACH EROSION. NEW SHORELINE CUTS POSSIBLE.  
- MASSIVE DAMAGE TO MARINAS, DOCKS, BOARDWALKS, AND PIERS.  
NUMEROUS SMALL CRAFT BROKEN AWAY FROM MOORINGS WITH MANY LIFTED  
ONSHORE AND STRANDED.  
 
ELSEWHERE ACROSS EASTERN FLORIDA PANHANDLE LITTLE TO NO IMPACT IS  
ANTICIPATED.  
 
* WIND:  
POTENTIAL IMPACTS FROM THE MAIN WIND EVENT ARE NOW UNFOLDING ACROSS  
THE FLORIDA BIG BEND AND SOUTH-CENTRAL GEORGIA. REMAIN WELL SHELTERED  
FROM LIFE-THREATENING WIND HAVING POSSIBLE DEVASTATING IMPACTS. IF  
REALIZED, THESE IMPACTS INCLUDE:  
 
- STRUCTURAL DAMAGE TO STURDY BUILDINGS, SOME WITH COMPLETE ROOF  
AND WALL FAILURES. COMPLETE DESTRUCTION OF MOBILE HOMES. DAMAGE  
GREATLY ACCENTUATED BY LARGE AIRBORNE PROJECTILES. LOCATIONS  
MAY BE UNINHABITABLE FOR WEEKS OR MONTHS.  
- NUMEROUS LARGE TREES SNAPPED OR UPROOTED ALONG WITH FENCES AND  
ROADWAY SIGNS BLOWN OVER.  
- MANY ROADS IMPASSABLE FROM LARGE DEBRIS, AND MORE WITHIN URBAN  
OR HEAVILY WOODED PLACES. MANY BRIDGES, CAUSEWAYS, AND ACCESS  
ROUTES IMPASSABLE.  
- WIDESPREAD POWER AND COMMUNICATIONS OUTAGES.  
 
* FLOODING RAIN:  
POTENTIAL IMPACTS FROM THE FLOODING RAIN ARE STILL UNFOLDING ACROSS  
ACROSS PORTIONS OF THE FLORIDA BIG BEND, THE EASTERN PANHANDLE, AND  
SOUTHERN GEORGIA THROUGH WEDNESDAY. REMAIN WELL GUARDED AGAINST  
LIFE-THREATENING FLOOD WATERS HAVING POSSIBLE EXTENSIVE IMPACTS. IF  
REALIZED, THESE 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, AND DITCHES MAY BECOME  
DANGEROUS RIVERS. 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.  
 
* TORNADOES:  
POTENTIAL IMPACTS FROM TORNADOES ARE STILL UNFOLDING ACROSS THE PORTIONS  
OF THE FLORIDA BIG BEND AND SOUTH GEORGIA. REMAIN WELL BRACED AGAINST A  
DANGEROUS TORNADO EVENT HAVING POSSIBLE SIGNIFICANT IMPACTS. IF  
REALIZED, THESE 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.  
 
ELSEWHERE ACROSS EASTERN FLORIDA PANHANDLE AND SOUTHEASTERN ALABAMA,  
LITTLE TO NO IMPACT IS ANTICIPATED.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS  
----------------------------------  
 
* EVACUATIONS:  
 
IMMINENT/ONGOING PHASE - DO NOT ENTER EVACUATED AREAS UNTIL OFFICIALS  
HAVE GIVEN THE ALL CLEAR TO RETURN.  
 
* OTHER PREPAREDNESS INFORMATION:  
 
NOW IS THE TIME TO STAY INSIDE AND AWAY FROM WINDOWS. LISTEN FOR  
UPDATES AND BE READY IN CASE YOU LOSE ELECTRICAL POWER. KEEP A  
BATTERY-POWERED RADIO, CHARGED CELL PHONE AND FLASHLIGHT HANDY.  
 
DURING THE PEAK OF THE STORM BE READY TO MOVE QUICKLY. KEEP YOUR  
SHOES ON AND RAIN GEAR HANDY. BOOTS AND ATHLETIC SHOES OFFER THE BEST  
FOOT PROTECTION IF YOU BECOME UNEXPECTEDLY EXPOSED TO THE WEATHER.  
 
KEEP YOUR CELL PHONE CHARGED AND IN POWER-SAVING MODE. IF YOU LOSE  
POWER, USE IT SPARINGLY AND MAINLY FOR PERSONAL EMERGENCIES AND  
CHECK-INS.  
 
DO NOT VENTURE OUTSIDE WHILE IN THE EYE OF A HURRICANE AS ANY  
IMPROVEMENT IN WEATHER WILL ONLY BE TEMPORARY. ONCE THE EYE PASSES,  
CONDITIONS WILL BECOME LIFE THREATENING AS WINDS IMMEDIATELY RETURN  
TO DANGEROUS SPEEDS, SO REMAIN SAFELY SHELTERED FROM THE STORM.  
 
DO NOT BE A THRILL SEEKER OR RISK YOUR LIFE FOR SENSELESS PHOTOS OR  
VIDEOS.  
 
QUICKLY MOVE TO THE SAFEST PLACE WITHIN YOUR SHELTER IF IT BEGINS TO  
FAIL, PREFERABLY AN INTERIOR ROOM ON THE LOWEST FLOOR AS LONG AS  
FLOODING IS NOT A CONCERN.  
 
IF YOU ARE PRONE TO FLOODING OR IN AN AREA UNDER A STORM SURGE WATCH  
OR WARNING, BE PREPARED FOR THE POSSIBILITY OF A QUICK AND DRAMATIC  
RISE IN WATER LEVELS.  
 
IF A TORNADO WARNING IS ISSUED FOR YOUR AREA, QUICKLY MOVE TO THE  
SAFEST PLACE WITHIN YOUR SHELTER. PROTECT YOUR HEAD AND BODY.  
 
IF AN EXTREME WIND WARNING IS ISSUED FOR YOUR AREA, MOVE TO THE  
SAFEST PLACE WITHIN YOUR SHELTER. TAKE THE SAME LIFE-SAVING ACTIONS  
AS IF IT WERE A VIOLENT TORNADO.  
 
* ADDITIONAL SOURCES OF INFORMATION:  
- FOR INFORMATION ON APPROPRIATE PREPARATIONS SEE READY.GOV  
- FOR ADDITIONAL DISASTER PREPAREDNESS INFORMATION SEE REDCROSS.ORG  
 
NEXT UPDATE  
-----------  
 
THE NEXT LOCAL STATEMENT WILL BE ISSUED BY THE NATIONAL WEATHER  
SERVICE IN TALLAHASSEE FL AROUND 1130 AM EDT, OR SOONER IF CONDITIONS  
WARRANT.  
 

 
 
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