[Tropical] Hurricane Local Statement

EMWIN Server emwin at nashvilleweather.net
Sun Aug 29 16:36:17 CDT 2021


WTUS84 KMOB 292135
HLSMOB
ALZ051>060-261>266-FLZ201>206-MSZ067-075-076-078-079-300545-

Hurricane Ida Local Statement Advisory Number 15
National Weather Service Mobile AL  AL092021
435 PM CDT Sun Aug 29 2021

This product covers portions of southwest Alabama...northwest Florida...south
central Alabama...and inland southeast Mississippi.

**IDA MOVING NORTHWESTWARD OVER SOUTHEASTERN LOUISIANA**

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 170 miles west-southwest of Mobile AL or about 210 miles
      west-southwest of Pensacola FL
    - 29.5N 90.6W
    - Storm Intensity 130 mph
    - Movement Northwest or 325 degrees at 10 mph

SITUATION OVERVIEW
------------------

At 4 PM CDT, Extremely dangerous Hurricane Ida made landfall late this
morning over southeast Louisiana near Port Fourchon as a major
hurricane. Ida's maximum sustained winds at landfall were estimated to
be 150 mph with a minimum central pressure of 930 mb. Hurricane- force
winds currently extend outward up to 45 miles from the center and
tropical-storm-force winds extend outward up to 150 miles. Ida
continues to move northwest at 10 mph and on the current forecast
track, the center of Ida will move farther inland over southeast
Louisiana tonight.

Ida is expected to bring rainfall amounts of 8-12 inches, with
isolated higher amounts up to 18 inches through midweek over southeast
Mississippi. Over coastal Alabama and the western Florida Panhandle,
5-10 inches of rain with isolated higher amounts up to 15 inches are
possible. Meanwhile, 3-8 inches of rain are expected elsewhere during
this time. This is likely to result in flash, urban, small stream, and
river flooding over portions of our area.

The tornado threat will continue across southeastern Mississippi,
southwestern Alabama, and portions of the western Florida Panhandle as
the outer rainbands on the northeast and east side of Ida move into and
across the area. This tornado threat is expected to persist and expand
across much of the region tonight into Monday.

Swells continue to impact our portion of the Gulf Coast. 3-5 feet of
coastal water rises above normally dry ground are expected along the
beaches, sounds, and the shoreline of Mobile Bay. 1-3 feet of water
rise is possible further east into the western Florida Panhandle. Surf
heights will increase to be between 10-15 feet through tonight. On
Monday, surf heights are anticipated to be between 9-11 feet along the
coast of Alabama and between 7-9 feet along the coast of the western
Florida Panhandle. Overall, 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.

Tropical storm force conditions, especially in frequent gusts, have
occurred over portions of coastal Alabama so far today. These
conditions will continue to be possible over these areas as well as
over interior southeast Mississippi and portions of southwest Alabama
as Ida turns northward overnight and moves further inland over portions
of western Mississippi Monday and Monday night.

POTENTIAL IMPACTS
-----------------

* FLOODING RAIN:
Potential impacts from the flooding rain are still unfolding across
southeast Mississippi, southwest Alabama, and the western Florida
Panhandle. 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, 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.

Potential impacts from the flooding rain are still unfolding across
south-central Alabama. Remain well guarded against dangerous flood
waters having possible limited to significant impacts.

* TORNADOES:
Potential impacts from tornadoes are still unfolding across portions
of southeast Mississippi, far southwest Alabama, and the far western
Florida Panhandle. 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.

Potential impacts from tornadoes are still unfolding across the
remainder of the area. Remain well braced against a tornado event
having possible limited impacts.

* SURGE:
Potential impacts from the main surge event are now unfolding across
coastal Alabama and adjoining Mobile Bay shoreline. Remain well away
from life-threatening surge having possible significant impacts. If
realized, these impacts 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.

Potential impacts from the main surge event are also now unfolding
across coastal sections of the western Florida Panhandle. Remain well
away from locally hazardous surge having possible limited impacts.

* WIND:
Potential impacts from the main wind event are now unfolding across
southeast Mississippi and far southwest Alabama. Remain well
sheltered from hazardous wind having possible limited impacts. If
realized, these impacts 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 interior southwest and south-central
Alabama and the western Florida Panhandle, little to no impact is
anticipated.

PRECAUTIONARY/PREPAREDNESS ACTIONS
----------------------------------

* EVACUATIONS:
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.

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.y.

* 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 11 PM CDT, or sooner if conditions
warrant.

$$

CGAL
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