Tropical Storm Warning 1006, NWS Mobile, AL, August 15, 2021

The area

The counties it named.

The facts

Issued: Aug 15, 2021, 10:17 AM CDT (15:17 UTC)
Expired: Aug 16, 2021, 10:13 PM CDT
In force: 36 hr
Issued by: NWS Mobile, AL

Counties Covington County, AL, Okaloosa County, FL

The radar

The Eglin Afb radar (KEVX), 72 km from the middle of the area, began a volume at 15:20 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 3.3 hours before the alert went out and 221 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 261 J/kg
Mixed-layer CIN: -95 J/kg
Mixed-layer LCL: 1083 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: 36 m²/s²
0-3 km storm-relative helicity: 63 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

474
WTUS84 KMOB 151517
TCVMOB

URGENT - IMMEDIATE BROADCAST REQUESTED
Fred Local Watch/Warning Statement/Advisory Number 24
National Weather Service Mobile AL AL062021
1017 AM CDT Sun Aug 15 2021

ALZ059-152330-
/O.CON.KMOB.TR.A.1006.000000T0000Z-000000T0000Z/
Escambia-
1017 AM CDT Sun Aug 15 2021

...TROPICAL STORM WATCH REMAINS IN EFFECT...

* LOCATIONS AFFECTED
- Atmore
- Brewton
- Flomaton

* WIND
- LATEST LOCAL FORECAST: Below tropical storm force wind
- Peak Wind Forecast: 10-15 mph with gusts to 15 mph

- THREAT TO LIFE AND PROPERTY THAT INCLUDES TYPICAL FORECAST
UNCERTAINTY IN TRACK, SIZE AND INTENSITY: Potential for wind 58
to 73 mph
- The wind threat has remained nearly steady from the
previous assessment.
- PLAN: Plan for dangerous wind of equivalent strong tropical
storm force.
- PREPARE: Remaining efforts to protect life and property
should be completed as soon as possible. Prepare for
significant wind damage.
- ACT: Move to safe shelter before the wind becomes hazardous.

- POTENTIAL IMPACTS: Significant
- Some damage to roofing and siding materials, along with
damage to porches, awnings, carports, and sheds. A few
buildings experiencing window, door, and garage door
failures. Mobile homes damaged, especially if unanchored.
Unsecured lightweight objects become dangerous projectiles.
- Several large trees snapped or uprooted, but with greater
numbers in places where trees are shallow rooted. Several
fences and roadway signs blown over.
- Some roads impassable from large debris, and more within
urban or heavily wooded places.
- Scattered power and communications outages, but more
prevalent in areas with above ground lines.

* FLOODING RAIN
- LATEST LOCAL FORECAST:
- Peak Rainfall Amounts: Additional 1-3 inches, with locally
higher amounts

- THREAT TO LIFE AND PROPERTY THAT INCLUDES TYPICAL FORECAST
UNCERTAINTY IN TRACK, SIZE AND INTENSITY: Potential for
localized flooding rain
- The flooding rain threat has remained nearly steady from
the previous assessment.
- PLAN: Emergency plans should include the potential for
localized flooding from heavy rain.
- PREPARE: Consider protective actions if you are in an area
vulnerable to flooding.
- ACT: Heed any flood watches and warnings.

- POTENTIAL IMPACTS: Limited
- Localized rainfall flooding may prompt a few evacuations.
- Rivers and tributaries may quickly rise with swifter
currents. Small streams, creeks, canals, and ditches may
become swollen and overflow in spots.
- 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.

* TORNADO
- LATEST LOCAL FORECAST:
- Situation is somewhat favorable for tornadoes

- THREAT TO LIFE AND PROPERTY THAT INCLUDES TYPICAL FORECAST
UNCERTAINTY IN TRACK, SIZE AND INTENSITY: Potential for a few
tornadoes
- The tornado threat has remained nearly steady from the
previous assessment.
- PLAN: Emergency plans should include the potential for a
few tornadoes.
- PREPARE: If your shelter is particularly vulnerable to
tornadoes, prepare to relocate to safe shelter before
hazardous weather arrives.
- ACT: If a tornado warning is issued, be ready to shelter
quickly.

- POTENTIAL IMPACTS: Limited
- 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.

* FOR MORE INFORMATION:
- For local information, please refer to:
- Escambia County EMA: 251-867-0232
- For storm impacts:
- NWS Mobile: www.weather.gov/mob

$$

ALZ060-152330-
/O.CON.KMOB.TR.A.1006.000000T0000Z-000000T0000Z/
Covington-
1017 AM CDT Sun Aug 15 2021

...TROPICAL STORM WATCH REMAINS IN EFFECT...

* LOCATIONS AFFECTED
- Andalusia
- Opp

* WIND
- LATEST LOCAL FORECAST: Below tropical storm force wind
- Peak Wind Forecast: 15-25 mph with gusts to 30 mph

- THREAT TO LIFE AND PROPERTY THAT INCLUDES TYPICAL FORECAST
UNCERTAINTY IN TRACK, SIZE AND INTENSITY: Potential for wind 58
to 73 mph
- The wind threat has remained nearly steady from the
previous assessment.
- PLAN: Plan for dangerous wind of equivalent strong tropical
storm force.
- PREPARE: Remaining efforts to protect life and property
should be completed as soon as possible. Prepare for
significant wind damage.
- ACT: Move to safe shelter before the wind becomes hazardous.

- POTENTIAL IMPACTS: Significant
- Some damage to roofing and siding materials, along with
damage to porches, awnings, carports, and sheds. A few
buildings experiencing window, door, and garage door
failures. Mobile homes damaged, especially if unanchored.
Unsecured lightweight objects become dangerous projectiles.
- Several large trees snapped or uprooted, but with greater
numbers in places where trees are shallow rooted. Several
fences and roadway signs blown over.
- Some roads impassable from large debris, and more within
urban or heavily wooded places.
- Scattered power and communications outages, but more
prevalent in areas with above ground lines.

* FLOODING RAIN
- LATEST LOCAL FORECAST: Flash Flood Watch is in effect
- Peak Rainfall Amounts: Additional 2-4 inches, with locally
higher amounts

- THREAT TO LIFE AND PROPERTY THAT INCLUDES TYPICAL FORECAST
UNCERTAINTY IN TRACK, SIZE AND INTENSITY: Potential for
moderate flooding rain
- The flooding rain threat has remained nearly steady from
the previous assessment.
- PLAN: Emergency plans should include the potential for
moderate flooding from heavy rain. Evacuations and rescues
are possible.
- PREPARE: Consider protective actions if you are in an area
vulnerable to flooding.
- ACT: Heed any flood watches and warnings. Failure to take
action may result in serious injury or loss of life.

- POTENTIAL IMPACTS: Significant
- Moderate rainfall flooding may prompt several evacuations
and rescues.
- Rivers and tributaries may quickly become swollen with
swifter currents and overspill their banks in a few places,
especially in usually vulnerable spots. Small streams,
creeks, canals, and ditches overflow.
- Flood waters can enter some structures or weaken
foundations. Several places may experience expanded areas
of rapid inundation at underpasses, low-lying spots, and
poor drainage areas. Some streets and parking lots take on
moving water as storm drains and retention ponds overflow.
Driving conditions become hazardous. Some road and bridge
closures.

* TORNADO
- LATEST LOCAL FORECAST:
- Situation is somewhat favorable for tornadoes

- THREAT TO LIFE AND PROPERTY THAT INCLUDES TYPICAL FORECAST
UNCERTAINTY IN TRACK, SIZE AND INTENSITY: Potential for a few
tornadoes
- The tornado threat has remained nearly steady from the
previous assessment.
- PLAN: Emergency plans should include the potential for a
few tornadoes.
- PREPARE: If your shelter is particularly vulnerable to
tornadoes, prepare to relocate to safe shelter before
hazardous weather arrives.
- ACT: If a tornado warning is issued, be ready to shelter
quickly.

- POTENTIAL IMPACTS: Limited
- 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.

* FOR MORE INFORMATION:
- For local information, please refer to:
- Covington County EMA: 334-428-2670 or www.covcounty.com/emergency-management-agency
- For storm impacts:
- NWS Mobile: www.weather.gov/mob

$$

FLZ201-152330-
/O.CON.KMOB.TR.A.1006.000000T0000Z-000000T0000Z/
Escambia Inland-
1017 AM CDT Sun Aug 15 2021

...TROPICAL STORM WATCH REMAINS IN EFFECT...

* LOCATIONS AFFECTED
- Century
- Walnut Hill
- Molino

* WIND
- LATEST LOCAL FORECAST: Below tropical storm force wind
- Peak Wind Forecast: 10-15 mph with gusts to 20 mph

- THREAT TO LIFE AND PROPERTY THAT INCLUDES TYPICAL FORECAST
UNCERTAINTY IN TRACK, SIZE AND INTENSITY: Potential for wind 39
to 57 mph
- The wind threat has remained nearly steady from the
previous assessment.
- PLAN: Plan for hazardous wind of equivalent tropical storm
force.
- PREPARE: Remaining efforts to protect property should be
completed as soon as possible. Prepare for limited wind
damage.
- ACT: Move to safe shelter before the wind becomes hazardous.

- POTENTIAL IMPACTS: Limited
- 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.

* STORM SURGE
- LATEST LOCAL FORECAST: Localized storm surge possible
- Peak Storm Surge Inundation: The potential for 1-3 feet
above ground somewhere within surge prone areas
- Window of concern: through this afternoon

- THREAT TO LIFE AND PROPERTY THAT INCLUDES TYPICAL FORECAST
UNCERTAINTY IN TRACK, SIZE AND INTENSITY: Potential for storm
surge flooding greater than 1 foot above ground
- The storm surge threat has remained nearly steady from the
previous assessment.
- PLAN: Shelter against storm surge flooding greater than 1
foot above ground.
- PREPARE: All flood preparations should be complete. Expect
flooding of low-lying roads and property.
- ACT: Stay away from storm surge prone areas. Continue to
follow the instructions of local officials.

- POTENTIAL IMPACTS: Unfolding
- Potential impacts from the main surge event are unfolding.

* FLOODING RAIN
- LATEST LOCAL FORECAST:
- Peak Rainfall Amounts: Additional 1-3 inches, with locally
higher amounts

- THREAT TO LIFE AND PROPERTY THAT INCLUDES TYPICAL FORECAST
UNCERTAINTY IN TRACK, SIZE AND INTENSITY: Potential for
localized flooding rain
- The flooding rain threat has remained nearly steady from
the previous assessment.
- PLAN: Emergency plans should include the potential for
localized flooding from heavy rain.
- PREPARE: Consider protective actions if you are in an area
vulnerable to flooding.
- ACT: Heed any flood watches and warnings.

- POTENTIAL IMPACTS: Limited
- Localized rainfall flooding may prompt a few evacuations.
- Rivers and tributaries may quickly rise with swifter
currents. Small streams, creeks, canals, and ditches may
become swollen and overflow in spots.
- 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.

* TORNADO
- LATEST LOCAL FORECAST:
- Situation is somewhat favorable for tornadoes

- THREAT TO LIFE AND PROPERTY THAT INCLUDES TYPICAL FORECAST
UNCERTAINTY IN TRACK, SIZE AND INTENSITY: Potential for a few
tornadoes
- The tornado threat has remained nearly steady from the
previous assessment.
- PLAN: Emergency plans should include the potential for a
few tornadoes.
- PREPARE: If your shelter is particularly vulnerable to
tornadoes, prepare to relocate to safe shelter before
hazardous weather arrives.
- ACT: If a tornado warning is issued, be ready to shelter
quickly.

- POTENTIAL IMPACTS: Limited
- 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.

* FOR MORE INFORMATION:
- For evacuation and shelter information, please refer to:
- Escambia County EMA: 850-471-6400 or bereadyescambia.com
- For storm surge threat graphics and other storm impacts:
- NWS Mobile: www.weather.gov/mob

$$

FLZ204-152330-
/O.CON.KMOB.TR.A.1006.000000T0000Z-000000T0000Z/
Santa Rosa Coastal-
1017 AM CDT Sun Aug 15 2021

...TROPICAL STORM WATCH REMAINS IN EFFECT...

* LOCATIONS AFFECTED
- Bagdad
- Gulf Breeze
- Navarre