Alert archive / Florida / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 29, NWS Tallahassee, FL
NWS Tallahassee, FL issued this severe thunderstorm warning at Mar 18, 2021, 5:40 AM CDT for Bay County, Walton County, Washington County, Florida. It was in force for 64 min. 6 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Mar 18, 2021, 5:40 AM CDT (10:40 UTC)
- Expired
- Mar 18, 2021, 6:44 AM CDT
- In force
- 64 min
- Issued by
- NWS Tallahassee, FL
- Area
- Storm-based polygon
- Tornado
- Possible
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Bay County, FL, Walton County, FL, Washington County, FL
The radar
The Eglin Afb radar (KEVX), 56 km from the middle of the area, began a volume at 10:40 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Mar 18, 6:02 AM CDT | TORNADO | 2 Ese Red Head, FL | TDS OBSERVED ON RADAR OVER A FORESTED AREA WITH TREE DAMAGE. NO STRUCTURAL DAMAGE REPORTED. |
| Mar 18, 6:03 AM CDT | TORNADO | Nw Florida Beaches Intl, FL | EF0 TORNADO CONFIRMED FROM STORM SURVEY. |
| Mar 18, 6:04 AM CDT | TSTM WND GST 82 | Nw Florida Beaches Intl, FL | AT 1100Z, ASOS REPORTED A GUST TO 64 KT (74 MPH). FOLLOW UP WITH TOWER OBSERVER INDICATED A PEAK WIND OF 71 KT (82 MPH) AT 1104Z FOR A 2 MINUTE DURATION. |
| Mar 18, 6:20 AM CDT | TSTM WND DMG | Bayou George, FL | REPORT OF FENCES DOWN AND ROOF DAMAGE NEAR BAYOU GEORGE. |
| Mar 18, 6:25 AM CDT | TORNADO | Bayou George, FL | EF1 TORNADO CONFIRMED FROM STORM SURVEY. |
| Mar 18, 6:32 AM CDT | MARINE TSTM WIND 40 | 4 Se Tyndall Afb, FL | AWOS STATION KTDR 4 SE TYNDALL AFB. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Mar 17, 11:02 PM CDT | Tornado Watch | SPC | 9 hr |
The nearest sounding before it
Tallahassee Rgnl, FL (KTLH), launched 00:00Z, 10.7 hours before the alert went out and 125 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1019 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 126 m²/s²
- 0-3 km storm-relative helicity
- 171 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted.
622
WUUS52 KTAE 181040
SVRTAE
FLC005-131-133-181200-
/O.NEW.KTAE.SV.W.0029.210318T1040Z-210318T1200Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Tallahassee FL
540 AM CDT Thu Mar 18 2021
The National Weather Service in Tallahassee has issued a
* Severe Thunderstorm Warning for...
Bay County in the Panhandle of Florida...
Southeastern Walton County in the Panhandle of Florida...
Southern Washington County in the Panhandle of Florida...
* Until 700 AM CDT.
* At 540 AM CDT, severe thunderstorms were located along a line
extending from 15 miles northeast of Santa Rosa Beach to 31 miles
south of Panama City Beach, moving northeast at 35 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Panama City, Lynn Haven, Panama City Beach, Callaway, Springfield,
Mexico Beach, Hiland Park, Tyndall Air Force Base, Parker, Ebro,
Allanton, Dirego Park, College Station, Gulf Resort Beach, West
Panama City, Bahama Beach, Bennett, Davis Beach, Porter Lake and
Brannonville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 800 AM CDT for the Panhandle
of Florida.
To report severe weather, contact your nearest law enforcement
agency. They will send your report to the National Weather Service
office in Tallahassee.
&&
LAT...LON 3050 8608 3058 8544 3057 8543 3057 8538
3003 8539 2984 8538 2983 8541 2987 8539
2983 8542 2981 8549 2989 8550 3022 8607
TIME...MOT...LOC 1040Z 243DEG 29KT 3047 8601 2977 8599
TORNADO...POSSIBLE
HAIL...<.75IN
WIND...60MPH
$$
42-DVD2 follow-up statements
639
WWUS52 KTAE 181135
SVSTAE
Severe Weather Statement
National Weather Service Tallahassee FL
635 AM CDT Thu Mar 18 2021
FLC131-181145-
/O.CAN.KTAE.SV.W.0029.000000T0000Z-210318T1200Z/
Walton FL-
635 AM CDT Thu Mar 18 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN WALTON COUNTY IS
CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
A Tornado Watch remains in effect until 800 AM CDT for the Panhandle
of Florida.
LAT...LON 3054 8572 3058 8544 3057 8543 3057 8538
3003 8539 2991 8539 2991 8552 2996 8562
TIME...MOT...LOC 1135Z 261DEG 32KT 3057 8548 2987 8546
$$
FLC005-133-181200-
/O.CON.KTAE.SV.W.0029.000000T0000Z-210318T1200Z/
Bay FL-Washington FL-
635 AM CDT Thu Mar 18 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 AM CDT
FOR BAY AND SOUTHEASTERN WASHINGTON COUNTIES...
At 635 AM CDT, severe thunderstorms were located along a line
extending from 13 miles east of Vernon to 6 miles southwest of Mexico
Beach, moving east at 35 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Panama City, Lynn Haven, Callaway, Springfield, Mexico Beach, Hiland
Park, Tyndall Air Force Base, Parker, Southport, Fountain, Allanton,
Cedar Grove, Singer Road, Dirego Park, College Station, Bayou George,
Camp Flowers, Gainer Spring, Bennett and Youngstown.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 800 AM CDT for the Panhandle
of Florida.
To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
Tallahassee.
&&
LAT...LON 3054 8572 3058 8544 3057 8543 3057 8538
3003 8539 2991 8539 2991 8552 2996 8562
TIME...MOT...LOC 1135Z 261DEG 32KT 3057 8548 2987 8546
TORNADO...POSSIBLE
HAIL...<.75IN
WIND...60MPH
$$
42-DVD215
WWUS52 KTAE 181144
SVSTAE
Severe Weather Statement
National Weather Service Tallahassee FL
644 AM CDT Thu Mar 18 2021
FLC005-133-181154-
/O.CAN.KTAE.SV.W.0029.000000T0000Z-210318T1200Z/
Bay FL-Washington FL-
644 AM CDT Thu Mar 18 2021
...THE SEVERE THUNDERSTORM WARNING FOR BAY AND SOUTHEASTERN
WASHINGTON COUNTIES IS CANCELLED...
The storms which prompted the warning have moved out of the area.
Therefore, the warning has been cancelled.
A Tornado Watch remains in effect until 800 AM CDT for the Panhandle
of Florida.
To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Tallahassee.
LAT...LON 3054 8572 3058 8544 3057 8543 3057 8538
3003 8539 2991 8539 2991 8552 2996 8562
TIME...MOT...LOC 1142Z 243DEG 29KT 3060 8542 2990 8540
$$
42-DVDThe office that day
Everything else NWS Tallahassee, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 18, 3:18 AM CDT | Special Marine Warning | TAE | 3 hr | |
| Mar 18, 3:45 AM CDT | Special Weather Statement | TAE | Holmes, Walton | 75 min |
| Mar 18, 4:29 AM CDT | Severe Thunderstorm Warning | TAE | Holmes, Walton, Washington | 61 min |
| Mar 18, 5:44 AM CDT | Special Marine Warning | TAE | 3 hr | |
| Mar 18, 6:02 AM CDT | Tornado Warning | TAE | Bay, Washington | 28 min |
| Mar 18, 6:05 AM CDT | Tornado Warning | TAE | Bay, Calhoun, Gulf | 40 min |
| Mar 18, 6:19 AM CDT | Severe Thunderstorm Warning | TAE | Bay, Calhoun, Franklin, Gulf, Holmes, Jackson and 2 more | 86 min |
| Mar 18, 6:48 AM CDT | Tornado Warning | TAE | Bay, Gulf | 27 min |
| Mar 18, 7:19 AM CDT | Severe Thunderstorm Warning | TAE | Calhoun, Franklin, Gadsden, Gulf, Leon, Liberty and 1 more | 56 min |
| Mar 18, 7:24 AM CDT | Severe Thunderstorm Warning | TAE | Gadsden, Leon, Liberty | 51 min |
| Mar 18, 8:08 AM CDT | Special Marine Warning | TAE | 2 hr | |
| Mar 18, 8:11 AM CDT | Severe Thunderstorm Warning | TAE | Franklin, Gadsden, Gulf, Jefferson, Leon, Liberty and 1 more | 64 min |
| Mar 18, 9:07 AM CDT | Special Weather Statement | TAE | Jefferson, Wakulla | 38 min |
| Mar 18, 9:52 AM CDT | Special Weather Statement | TAE | Jefferson, Madison | 53 min |
| Mar 18, 10:04 AM CDT | Special Marine Warning | TAE | 116 min | |
| Mar 18, 10:49 AM CDT | Special Weather Statement | TAE | Taylor | 41 min |
| Mar 18, 11:36 AM CDT | Special Weather Statement | TAE | Dixie, Lafayette | 84 min |
| Mar 18, 11:55 AM CDT | Special Marine Warning | TAE | 110 min | |
| Mar 18, 12:21 PM CDT | Tornado Warning | TAE | Dixie, Lafayette, Taylor | 24 min |
| Mar 18, 12:44 PM CDT | Severe Thunderstorm Warning | TAE | Dixie, Lafayette | 31 min |
| Mar 18, 1:06 PM CDT | Special Weather Statement | TAE | Dixie | 39 min |
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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.