852
WTUS82 KKEY 282135
HLSKEY
FLZ078-290545-
TROPICAL STORM IDALIA LOCAL STATEMENT ADVISORY NUMBER 9
NATIONAL WEATHER SERVICE KEY WEST FL AL102023
535 PM EDT MON AUG 28 2023
THIS PRODUCT COVERS THE FLORIDA KEYS
**TROPICAL STORM WATCH REMAINS IN EFFECT FOR THE LOWER KEYS**
NEW INFORMATION
---------------
* CHANGES TO WATCHES AND WARNINGS:
- NONE
* CURRENT WATCHES AND WARNINGS:
- A TROPICAL STORM WATCH IS IN EFFECT FOR MONROE LOWER KEYS
* STORM INFORMATION:
- ABOUT 300 MILES SOUTHWEST OF KEY WEST FL
- 21.4N 85.1W
- STORM INTENSITY 70 MPH
- MOVEMENT NORTH OR 360 DEGREES AT 8 MPH
SITUATION OVERVIEW
------------------
TROPICAL STORM IDALIA CONTINUES TO STRENGTHEN JUST SOUTHWEST OF THE
WESTERN TIP OF CUBA. AIR FORCE AND NOAA RECONNAISSANCE AIRCRAFT
WILL CONTINUE TO SAMPLE THE STORM STRUCTURE AND INTENSITY THIS EVENING
AND OVERNIGHT. THERE HAVE BEEN NO CHANGES TO THE WATCHES AND WARNINGS,
WITH A TROPICAL STORM WARNING IN EFFECT FOR THE DRY TORTUGAS AND A
TROPICAL STORM WATCH IN EFFECT FOR THE LOWER KEYS. IDALIA WILL CONTINUE
TO THE NORTH TONIGHT, THEN ACCELERATE TO THE NORTH TO NORTHEAST ON
TUESDAY AND WEDNESDAY. THE CONFIDENCE IN THE TRACK FORECAST IS QUITE HIGH
FOR THE NEXT 24 HOURS AS IT TREKS NORTHWARD, FOLLOWED BY SOME
UNCERTAINTY AS FAR AS WHEN THE SYSTEM WILL MAKE A TURN TO THE
NORTHEAST TOWARDS THE BIG BEND REGION OF FLORIDA. AT ITS CLOSEST POINT
OF APPROACH, THE CENTER OF IDALIA WILL PASS WELL TO THE WEST OF THE
FLORIDA KEYS TUESDAY MORNING AND TUESDAY AFTERNOON. WE EXPECT WINDS TO
STRENGTHEN GRADUALLY OVER THE NEXT 24-HOURS, PEAKING TUESDAY AFTERNOON.
STRONG TROPICAL STORM- FORCE WIND GUSTS WILL BE POSSIBLE, PARTICULARLY
IN THE LOWER KEYS AND DURING OCCASIONAL, THUNDERY SQUALLS. THE
PERSISTENT SOUTHERLY WINDS, ALONG WITH KING TIDES, MAY RESULT IN
COASTAL FLOODING UP TO 2 FEET ABOVE NORMAL HIGH TIDES. IN ADDITION,
RAINFALL OF 1 TO 3 INCHES, WITH LOCALLY HIGHER AMOUNTS, AND A TORNADO
OR TWO CANNOT BE RULED OUT. CONDITIONS ARE EXPECTED TO GRADUALLY
IMPROVE TUESDAY NIGHT INTO WEDNESDAY, ALTHOUGH STRONG SOUTHERLY BREEZES
WILL PERSIST THROUGH MUCH OF THE DAY ON WEDNESDAY.
POTENTIAL IMPACTS
-----------------
* WIND:
PREPARE FOR HAZARDOUS WIND HAVING POSSIBLE LIMITED IMPACTS ACROSS THE
FLORIDA KEYS. POTENTIAL IMPACTS IN THIS AREA INCLUDE:
- DAMAGE TO PORCHES, AWNINGS, CARPORTS, SHEDS, AND UNANCHORED
MOBILE HOMES. UNSECURED LIGHTWEIGHT OBJECTS BLOWN ABOUT.
- A FEW ROADS IMPASSABLE FROM DEBRIS, PARTICULARLY WITHIN URBAN
OR HEAVILY WOODED PLACES. HAZARDOUS DRIVING CONDITIONS ON
BRIDGES AND OTHER ELEVATED ROADWAYS.
- ISOLATED POWER AND COMMUNICATIONS OUTAGES.
* SURGE:
PREPARE FOR LOCALLY HAZARDOUS SURGE HAVING POSSIBLE LIMITED IMPACTS
ACROSS THE FLORIDA KEYS. POTENTIAL IMPACTS IN THIS AREA INCLUDE:
- LOCALIZED INUNDATION WITH STORM SURGE FLOODING MAINLY ALONG
IMMEDIATE SHORELINES AND IN LOW-LYING SPOTS, OR IN AREAS
FARTHER INLAND NEAR WHERE HIGHER SURGE WATERS MOVE ASHORE.
- SECTIONS OF ROADS AND PARKING LOTS INUNDATED BY SURGE WATER.
DRIVING CONDITIONS DANGEROUS IN PLACES WHERE SURGE WATER COVERS
THE ROAD.
- MODERATE BEACH EROSION.
- MINOR TO LOCALLY MODERATE DAMAGE TO MARINAS, DOCKS, BOARDWALKS,
AND PIERS. A FEW SMALL CRAFT BROKEN AWAY FROM MOORINGS.
* FLOODING RAIN:
PREPARE FOR LOCALLY HAZARDOUS RAINFALL FLOODING HAVING POSSIBLE
LIMITED IMPACTS ACROSS THE FLORIDA KEYS. POTENTIAL IMPACTS INCLUDE:
- LOCALIZED RAINFALL FLOODING MAY PROMPT A FEW EVACUATIONS.
- FLOOD WATERS CAN ENTER A FEW STRUCTURES, ESPECIALLY IN USUALLY
VULNERABLE SPOTS. A FEW PLACES WHERE RAPID PONDING OF WATER
OCCURS AT UNDERPASSES, LOW-LYING SPOTS, AND POOR DRAINAGE
AREAS. SEVERAL STORM DRAINS AND RETENTION PONDS BECOME
NEAR-FULL AND BEGIN TO OVERFLOW. SOME BRIEF ROAD AND BRIDGE
CLOSURES.
* TORNADOES:
LITTLE TO NO IMPACTS ARE ANTICIPATED AT THIS TIME ACROSS THE FLORIDA
KEYS.
PRECAUTIONARY/PREPAREDNESS ACTIONS
----------------------------------
* EVACUATIONS:
WATCH/WARNING PHASE - IF YOU ARE EXCEPTIONALLY VULNERABLE TO WIND OR
WATER HAZARDS FROM TROPICAL SYSTEMS, CONSIDER VOLUNTARY EVACUATION,
ESPECIALLY IF BEING OFFICIALLY RECOMMENDED. RELOCATE TO A SAFE
DESTINATION.
* OTHER PREPAREDNESS INFORMATION:
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.
IF YOU LIVE IN A PLACE PARTICULARLY VULNERABLE TO FLOODING, SUCH AS IN
A LOW-LYING OR POOR DRAINAGE AREA, PLAN TO MOVE TO SAFE SHELTER ON
HIGHER GROUND.
WHEN SECURING YOUR PROPERTY, OUTSIDE PREPARATIONS SHOULD BE CONCLUDED
AS SOON AS POSSIBLE BEFORE CONDITIONS DETERIORATE. THE ONSET OF STRONG
GUSTY WINDS OR FLOODING CAN CAUSE CERTAIN PREPAREDNESS ACTIVITIES TO
BECOME UNSAFE.
CLOSELY MONITOR WEATHER.GOV, NOAA WEATHER RADIO AND LOCAL NEWS OUTLETS
FOR OFFICIAL STORM INFORMATION. LISTEN FOR POSSIBLE CHANGES TO THE
FORECAST.
* ADDITIONAL SOURCES OF INFORMATION:
- FOR MONROE COUNTY EMERGENCY MANAGEMENT INFORMATION, SEE
MONROECOUNTYEM.COM/JIC
- FOR INFORMATION ON APPROPRIATE PREPARATIONS SEE READY.GOV
- FOR ADDITIONAL DISASTER PREPAREDNESS INFORMATION SEE REDCROSS.ORG
- FOR FLORIDA DIVISION OF EMERGENCY MANAGEMENT INFORMATION, SEE
FLORIDADISASTER.ORG
NEXT UPDATE
-----------
THE NEXT LOCAL STATEMENT WILL BE ISSUED BY THE NATIONAL WEATHER
SERVICE IN KEY WEST FL AROUND 1200 AM EDT, OR SOONER IF CONDITIONS
WARRANT.
BT
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