Alert archive / Florida / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 189, NWS Tallahassee, FL
NWS Tallahassee, FL issued this severe thunderstorm warning at Jul 15, 2021, 3:24 PM CDT for Bay County, Walton County, Washington County, Florida. It was in force for 51 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jul 15, 2021, 3:24 PM CDT (20:24 UTC)
- Expired
- Jul 15, 2021, 4:15 PM CDT
- In force
- 51 min
- Issued by
- NWS Tallahassee, FL
- Area
- Storm-based polygon
Counties Bay County, FL, Walton County, FL, Washington County, FL
The nearest sounding before it
Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 8.4 hours before the alert went out and 154 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.
- Mixed-layer CAPE
- 977 J/kg
- Mixed-layer CIN
- -36 J/kg
- Mixed-layer LCL
- 911 m above ground
- 0-6 km bulk shear
- 4 kt
- 0-1 km storm-relative helicity
- 10 m²/s²
- 0-3 km storm-relative helicity
- 6 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
971
WUUS52 KTAE 152024
SVRTAE
FLC005-131-133-152115-
/O.NEW.KTAE.SV.W.0189.210715T2024Z-210715T2115Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Tallahassee FL
324 PM CDT Thu Jul 15 2021
The National Weather Service in Tallahassee has issued a
* Severe Thunderstorm Warning for...
Northwestern Bay County in the Panhandle of Florida...
Southeastern Walton County in the Panhandle of Florida...
South central Washington County in the Panhandle of Florida...
* Until 415 PM CDT.
* At 324 PM CDT, Doppler radar indicated a line of severe
thunderstorms capable of producing damaging winds in excess of 60
mph. These storms were located along a line extending from 13 miles
northwest of Lynn Haven to 7 miles north of Panama City Beach.
These storms were nearly stationary.
* Locations impacted include...
Panama City Beach, Ebro, West Bay, Pine Log, Seminole Hills, Laird
and Gulf Resort Beach.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Severe thunderstorms produce damaging winds, destructive hail, deadly
lightning and very heavy rain. For your protection, move to an
interior room on the lowest floor of your home or business. Heavy
rains flood roads quickly so do not drive into areas where water
covers the road.
Torrential rainfall is also occurring with these storms, and may lead
to flash flooding. Do not drive your vehicle through flooded
roadways.
&&
LAT...LON 3044 8591 3044 8590 3046 8590 3047 8565
3034 8570 3021 8589 3027 8597 3027 8596
3028 8597 3027 8598 3029 8599 3030 8600
TIME...MOT...LOC 2024Z 225DEG 3KT 3041 8577 3032 8588
$$
11-MM1 follow-up statement
247
WWUS52 KTAE 152114
SVSTAE
Severe Weather Statement
National Weather Service Tallahassee FL
414 PM CDT Thu Jul 15 2021
FLC005-131-133-152124-
/O.EXP.KTAE.SV.W.0189.000000T0000Z-210715T2115Z/
Bay FL-Walton FL-Washington FL-
414 PM CDT Thu Jul 15 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN BAY...
SOUTHEASTERN WALTON AND SOUTH CENTRAL WASHINGTON COUNTIES WILL EXPIRE
AT 415 PM CDT...
The storms which prompted the warning have weakened below severe
limits, and have exited the warned area. Therefore, the warning will
be allowed to expire.
To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Tallahassee.
LAT...LON 3044 8591 3044 8590 3046 8590 3047 8565
3034 8570 3021 8589 3027 8597 3027 8596
3028 8597 3027 8598 3029 8599 3030 8600
TIME...MOT...LOC 2114Z 225DEG 3KT 3044 8574 3035 8585
$$
11-MMThe office that day
Everything else NWS Tallahassee, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 14, 7:08 PM CDT | Special Weather Statement | TAE | Taylor | 37 min |
| Jul 14, 8:12 PM CDT | Special Marine Warning | TAE | 63 min | |
| Jul 14, 8:54 PM CDT | Special Marine Warning | TAE | 2 hr | |
| Jul 15, 1:01 PM CDT | Special Marine Warning | TAE | 63 min | |
| Jul 15, 1:49 PM CDT | Special Weather Statement | TAE | Gulf | 26 min |
| Jul 15, 2:27 PM CDT | Special Marine Warning | TAE | 93 min | |
| Jul 15, 2:28 PM CDT | Special Weather Statement | TAE | Bay | 47 min |
| Jul 15, 2:34 PM CDT | Areal Flood Advisory | TAE | Bay | 2 hr |
| Jul 15, 3:20 PM CDT | Special Weather Statement | TAE | Bay, Washington | 55 min |
| Jul 15, 3:43 PM CDT | Special Weather Statement | TAE | Holmes | 47 min |
| Jul 15, 3:45 PM CDT | Special Weather Statement | TAE | Walton | 60 min |
| Jul 15, 3:54 PM CDT | Severe Thunderstorm Warning | TAE | Walton | 51 min |
| Jul 15, 3:54 PM CDT | Severe Thunderstorm Warning | TAE | Walton | 51 min |
| Jul 15, 3:58 PM CDT | Special Marine Warning | TAE | 62 min | |
| Jul 15, 4:24 PM CDT | Severe Thunderstorm Warning | TAE | Walton | 23 min |
| Jul 15, 4:51 PM CDT | Special Weather Statement | TAE | Holmes | 54 min |
| Jul 15, 5:19 PM CDT | Areal Flood Advisory | TAE | Holmes, Walton | 3 hr |
Nearby
Severe Thunderstorm Warnings in Florida, 2021Every severe thunderstorm warning in 2021
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.