879  
WTUS84 KMOB 290327  
HLSMOB  
ALZ051>060-261>266-FLZ201>206-MSZ067-075-076-078-079-291130-  
 
HURRICANE IDA LOCAL STATEMENT ADVISORY NUMBER 11  
NATIONAL WEATHER SERVICE MOBILE AL AL092021  
1027 PM CDT SAT AUG 28 2021  
 
THIS PRODUCT COVERS PORTIONS OF SOUTHWEST ALABAMA...NORTHWEST FLORIDA...SOUTH  
CENTRAL ALABAMA...AND INLAND SOUTHEAST MISSISSIPPI.  
 
**IDA FORECAST TO STRENGTHEN RAPIDLY BEFORE LANDFALL**  
 
NEW INFORMATION  
---------------  
 
* CHANGES TO WATCHES AND WARNINGS:  
- NONE  
 
* CURRENT WATCHES AND WARNINGS:  
- A STORM SURGE WARNING AND TROPICAL STORM WARNING ARE IN EFFECT  
FOR BALDWIN CENTRAL, BALDWIN COASTAL, MOBILE CENTRAL, AND  
MOBILE COASTAL  
- A TROPICAL STORM WARNING IS IN EFFECT FOR BALDWIN INLAND,  
GEORGE, GREENE, MOBILE INLAND, PERRY, STONE, WASHINGTON, AND  
WAYNE  
 
* STORM INFORMATION:  
- ABOUT 240 MILES SOUTH OF MOBILE AL OR ABOUT 230 MILES  
SOUTH-SOUTHWEST OF PENSACOLA FL  
- 27.2N 88.0W  
- STORM INTENSITY 105 MPH  
- MOVEMENT NORTHWEST OR 325 DEGREES AT 16 MPH  
 
SITUATION OVERVIEW  
------------------  
 
AT 10 PM CDT, HURRICANE IDA WAS APPROACHING THE VERY WARM CENTRAL  
GULF OF MEXICO WATERS, MOVING NORTHWEST AT 16 MPH. THIS GENERAL  
MOTION SHOULD CONTINUE UNTIL IDA REACHES THE NORTHERN GULF COAST  
ON SUNDAY. ON THE FORECAST TRACK, THE CENTER OF IDA WILL MOVE OVER  
THE CENTRAL GULF OF MEXICO THIS EVENING AND CONTINUE TO PROGRESS  
NORTHWEST, MAKING LANDFALL ALONG THE NORTHERN GULF COAST SUNDAY  
AFTERNOON.  
 
RAPID STRENGTHENING IS FORECAST TONIGHT. IDA IS EXPECTED TO BE AN  
EXTREMELY DANGEROUS MAJOR HURRICANE WHEN IT APPROACHES THE NORTHERN  
GULF COAST SUNDAY. CURRENTLY, HURRICANE-FORCE WINDS EXTEND OUTWARD  
UP TO 40 MILES FROM THE CENTER AND TROPICAL-STORM-FORCE WINDS EXTEND  
OUTWARD UP TO 140 MILES. IDA IS FORECAST TO INCREASE IN SIZE AS IT  
APPROACHES THE COAST WITH THE AREA OF TROPICAL STORM FORCE WINDS  
LIKELY EXPANDING FURTHER OUT TO THE EAST FROM THE CENTER BEFORE  
LANDFALL.  
 
IDA WILL LIKELY BRING RAINFALL AMOUNTS OF 5 TO 10 INCHES, WITH  
ISOLATED HIGHER AMOUNTS OF 12 OR MORE INCHES, ESPECIALLY OVER  
SOUTHEAST MISSISSIPPI AND COASTAL ALABAMA, SUNDAY INTO MONDAY AND  
POTENTIALLY EXTENDING INTO TUESDAY. THIS IS LIKELY TO RESULT IN FLASH,  
URBAN, SMALL STREAM, AND RIVER FLOODING OVER PORTIONS OF OUR AREA.  
 
DEPENDING ON THE EXACT TRACK OF IDA AFTER LANDFALL, TROPICAL STORM  
FORCE CONDITIONS, ESPECIALLY IN FREQUENT GUSTS, COULD OCCUR OVER  
INTERIOR SOUTHEAST MISSISSIPPI AND PORTIONS OF SOUTHWEST AND COASTAL  
ALABAMA.  
 
SWELLS HAVE BEGUN TO IMPACT OUR PORTION OF THE GULF COAST. 2 TO 4  
FEET OF COASTAL WATER RISES ABOVE NORMALLY DRY GROUND ARE EXPECTED  
ALONG THE BEACHES, SOUNDS, AND THE SHORELINE OF MOBILE BAY. 1 TO 3  
FEET OF WATER RISE IS POSSIBLE FURTHER EAST INTO THE WESTERN FLORIDA  
PANHANDLE. SURF HEIGHTS ARE EXPECTED TO INCREASE TO BE BETWEEN 5-10  
FEET TONIGHT THROUGH SUNDAY EVENING. THESE SWELLS ARE LIKELY TO CAUSE  
LIFE-THREATENING SURF, WAVE RUN UP, AND DANGEROUS RIP CURRENTS. WAVES  
AND SWELLS ARE LIKELY TO REMAIN ELEVATED INTO MONDAY AND POTENTIALLY  
TUESDAY AS STRONG SOUTH TO SOUTHWEST WINDS PERSIST OVER THE MARINE  
AREAS.  
 
THE TORNADO THREAT WILL ALSO BEGIN TO INCREASE FROM LATE TONIGHT INTO  
SUNDAY ACROSS SOUTHEASTERN MISSISSIPPI, SOUTHWESTERN ALABAMA, AND  
PORTIONS OF THE WESTERN FLORIDA PANHANDLE AS THE OUTER RAINBANDS ON  
THE EAST AND NORTHEAST SIDE OF IDA MOVE INTO AND ACROSS THE AREA.  
THIS TORNADO THREAT WILL LIKELY PERSIST AND EXPAND ACROSS MUCH OF THE  
REGION SUNDAY NIGHT AND INTO MONDAY.  
 
POTENTIAL IMPACTS  
-----------------  
 
* FLOODING RAIN:  
PROTECT AGAINST LIFE-THREATENING RAINFALL FLOODING HAVING POSSIBLE  
EXTENSIVE IMPACTS ACROSS SOUTHEAST MISSISSIPPI AND PORTIONS OF  
SOUTHWEST ALABAMA. 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, 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.  
 
PROTECT AGAINST DANGEROUS RAINFALL FLOODING HAVING POSSIBLE LIMITED  
TO SIGNIFICANT IMPACTS ACROSS THE REMAINING PORTIONS OF THE LOCAL AREA.  
 
* TORNADOES:  
PROTECT AGAINST A TORNADO EVENT HAVING POSSIBLE LIMITED IMPACTS  
ACROSS PORTIONS OF SOUTHWEST ALABAMA...NORTHWEST FLORIDA...SOUTH  
CENTRAL ALABAMA...AND INLAND SOUTHEAST MISSISSIPPI.. POTENTIAL  
IMPACTS INCLUDE:  
- THE OCCURRENCE OF ISOLATED TORNADOES CAN HINDER THE EXECUTION  
OF EMERGENCY PLANS DURING TROPICAL EVENTS.  
- A FEW PLACES MAY EXPERIENCE TORNADO DAMAGE, ALONG WITH POWER  
AND COMMUNICATIONS DISRUPTIONS.  
- LOCATIONS COULD REALIZE ROOFS PEELED OFF BUILDINGS, CHIMNEYS  
TOPPLED, MOBILE HOMES PUSHED OFF FOUNDATIONS OR OVERTURNED,  
LARGE TREE TOPS AND BRANCHES SNAPPED OFF, SHALLOW-ROOTED TREES  
KNOCKED OVER, MOVING VEHICLES BLOWN OFF ROADS, AND SMALL BOATS  
PULLED FROM MOORINGS.  
 
* WIND:  
PROTECT AGAINST HAZARDOUS WIND HAVING POSSIBLE LIMITED IMPACTS ACROSS  
SOUTHEAST MISSISSIPPI AND FAR SOUTHWEST ALABAMA. POTENTIAL IMPACTS IN  
THIS AREA INCLUDE:  
- DAMAGE TO PORCHES, AWNINGS, CARPORTS, SHEDS, AND UNANCHORED  
MOBILE HOMES. UNSECURED LIGHTWEIGHT OBJECTS BLOWN ABOUT.  
- MANY LARGE TREE LIMBS BROKEN OFF. A FEW TREES SNAPPED OR  
UPROOTED, BUT WITH GREATER NUMBERS IN PLACES WHERE TREES ARE  
SHALLOW ROOTED. SOME FENCES AND ROADWAY SIGNS BLOWN OVER.  
- A FEW ROADS IMPASSABLE FROM DEBRIS, PARTICULARLY WITHIN URBAN  
OR HEAVILY WOODED PLACES. HAZARDOUS DRIVING CONDITIONS ON  
BRIDGES AND OTHER ELEVATED ROADWAYS.  
- SCATTERED POWER AND COMMUNICATIONS OUTAGES.  
 
ELSEWHERE ACROSS PORTIONS OF SOUTHWEST ALABAMA...NORTHWEST  
FLORIDA...SOUTH CENTRAL ALABAMA...AND INLAND SOUTHEAST MISSISSIPPI.,  
LITTLE TO NO IMPACT IS ANTICIPATED.  
 
* SURGE:  
PROTECT AGAINST LIFE-THREATENING SURGE HAVING POSSIBLE SIGNIFICANT  
IMPACTS ACROSS COASTAL ALABAMA AND ADJOINING MOBILE BAY SHORELINE.  
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 BREACHING DUNES. STRONG AND  
NUMEROUS RIP CURRENTS.  
- MODERATE DAMAGE TO MARINAS, DOCKS, BOARDWALKS, AND PIERS.  
SEVERAL SMALL CRAFT BROKEN AWAY FROM MOORINGS, ESPECIALLY IN  
UNPROTECTED ANCHORAGES.  
 
ALSO, PROTECT AGAINST LOCALLY HAZARDOUS SURGE HAVING POSSIBLE LIMITED  
IMPACTS ACROSS COASTAL SECTIONS OF THE WESTERN FLORIDA PANHANDLE.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS  
----------------------------------  
 
* EVACUATIONS:  
LISTEN TO LOCAL OFFICIAL FOR RECOMMENDED PREPAREDNESS ACTIONS,  
INCLUDING POSSIBLE EVACUATION. IF ORDERED TO EVACUATE, DO SO  
IMMEDIATELY.  
 
FOR THOSE NOT UNDER EVACUATION ORDERS, ASSESS THE RISK FROM WIND,  
FALLING TREES, AND FLOODING AT YOUR LOCATION. IF YOU DECIDE TO MOVE,  
RELOCATE TO A SAFER LOCATION NEARBY. IF YOU DO NOT RELOCATE, HELP  
KEEP ROADWAYS OPEN FOR THOSE UNDER EVACUATION ORDERS.  
 
WATCH/WARNING PHASE - IF EVACUATING, LEAVE WITH A DESTINATION IN MIND  
AND ALLOW EXTRA TIME TO GET THERE. TAKE YOUR EMERGENCY SUPPLIES KIT.  
GAS UP YOUR VEHICLE AHEAD OF TIME.  
 
* 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.  
 
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.  
 
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.  
 
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!  
 
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 THE LATEST DETAILED EVACUATION AND SHELTER INFORMATION...PLEASE  
REFER TO YOUR LOCAL EMERGENCY MANAGEMENT AGENCY AT THE PHONE NUMBER  
OR WEBSITE LISTED BELOW.  
- COASTAL ALABAMA:  
- BALDWIN COUNTY: 251-972-6807 OR  
WWW.BALDWINCOUNTYAL.GOV/DEPARTMENTS/EMA  
- MOBILE COUNTY: 251-460-8000 OR WWW.MCEMA.NET  
- NORTHWEST FLORIDA:  
- ESCAMBIA COUNTY: 850-471-6400 OR BEREADYESCAMBIA.COM  
- SANTA ROSA COUNTY: 850-983-5360 WWW.SANTAROSA.FL.GOV/EMERGENCY  
- OKALOOSA COUNTY: 850-651-7150 OR WWW.CO.OKALOOSA.FL.US/PS/HOME  
- 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 MOBILE AL AROUND 4 AM CDT, OR SOONER IF CONDITIONS WARRANT.  
 

 
 
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