Alert archive / Florida / Tornado Warnings in 2017
Tornado Warning 75, NWS Tallahassee, FL
NWS Tallahassee, FL issued this tornado warning at Jun 20, 2017, 8:41 PM CDT for Bay County, Calhoun County, Florida. It was in force for 19 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
- Jun 20, 2017, 8:41 PM CDT (01:41 UTC)
- Expired
- Jun 20, 2017, 9:00 PM CDT
- In force
- 19 min
- Issued by
- NWS Tallahassee, FL
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.0 in
Counties Bay County, FL, Calhoun County, FL
The radar
The Eglin Afb radar (KEVX), 57 km from the middle of the area, began a volume at 01:42 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 00:00Z, 1.7 hours before the alert went out and 100 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
- 439 J/kg
- Mixed-layer CIN
- -17 J/kg
- Mixed-layer LCL
- 713 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 173 m²/s²
- 0-3 km storm-relative helicity
- 249 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 4.8
The text
As transmitted.
696
WFUS52 KTAE 210141
TORTAE
FLC005-013-210230-
/O.NEW.KTAE.TO.W.0075.170621T0141Z-170621T0230Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Tallahassee FL
841 PM CDT TUE JUN 20 2017
The National Weather Service in Tallahassee has issued a
* Tornado Warning for...
Northeastern Bay County in the Panhandle of Florida...
Northwestern Calhoun County in the Panhandle of Florida...
* Until 930 PM CDT
* At 840 PM CDT, a severe thunderstorm capable of producing a tornado
was located 14 miles west of Blountstown, moving northwest at 15
mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed.
Damage to roofs, windows, and vehicles will occur. Tree
damage is likely.
* This tornadic thunderstorm will remain over mainly rural areas of
northeastern Bay and northwestern Calhoun Counties in the Panhandle
of Florida, including the following locations: Moose Pond, Broad
Branch, Saunders, Fountain, Camps Head and Center Lake.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 3057 8527 3056 8526 3034 8521 3030 8531
3042 8542 3050 8549 3051 8547
TIME...MOT...LOC 0140Z 157DEG 14KT 3037 8529
TORNADO...RADAR INDICATED
HAIL...0.00IN
$$
15-HARRIGAN1 follow-up statement
456
WWUS52 KTAE 210200
SVSTAE
Severe Weather Statement
National Weather Service Tallahassee FL
900 PM CDT TUE JUN 20 2017
FLC005-013-210210-
/O.CAN.KTAE.TO.W.0075.000000T0000Z-170621T0230Z/
Bay FL-Calhoun FL-
900 PM CDT TUE JUN 20 2017
...THE TORNADO WARNING FOR NORTHEASTERN BAY AND NORTHWESTERN CALHOUN
COUNTIES IN THE PANHANDLE OF FLORIDA IS CANCELLED...
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore the warning has been cancelled.
To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Tallahassee.
LAT...LON 3057 8527 3056 8526 3034 8521 3030 8531
3042 8542 3050 8549 3051 8547
TIME...MOT...LOC 0159Z 157DEG 14KT 3044 8533
$$
42-DVDThe office that day
Everything else NWS Tallahassee, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 20, 7:22 PM CDT | Tornado Warning | TAE | Calhoun, Gulf, Liberty | 27 min |
| Jun 20, 7:29 PM CDT | Tornado Warning | TAE | Bay, Calhoun, Jackson, Washington | 29 min |
| Jun 20, 7:37 PM CDT | Special Marine Warning | TAE | 83 min | |
| Jun 20, 9:02 PM CDT | Special Marine Warning | TAE | 58 min | |
| Jun 20, 10:00 PM CDT | Special Marine Warning | TAE | 2 hr | |
| Jun 20, 11:50 PM CDT | Tornado Warning | TAE | Franklin, Gulf | 23 min |
| Jun 20, 11:55 PM CDT | Special Marine Warning | TAE | 2 hr | |
| Jun 21, 12:27 AM CDT | Special Marine Warning | TAE | 2 hr | |
| Jun 21, 2:24 AM CDT | Special Marine Warning | TAE | 2 hr | |
| Jun 21, 4:23 AM CDT | Special Marine Warning | TAE | 2 hr | |
| Jun 21, 6:26 AM CDT | Special Marine Warning | TAE | 94 min | |
| Jun 21, 7:57 AM CDT | Special Marine Warning | TAE | 93 min | |
| Jun 21, 8:57 AM CDT | Flash Flood Warning | TAE | Bay | 3 hr |
| Jun 21, 9:25 AM CDT | Special Marine Warning | TAE | 95 min | |
| Jun 21, 9:52 AM CDT | Flash Flood Warning | TAE | Bay, Walton, Washington | 3 hr |
| Jun 21, 11:28 AM CDT | Flash Flood Warning | TAE | Holmes, Jackson, Washington | 3 hr |
| Jun 21, 12:03 PM CDT | Tornado Warning | TAE | Jackson | 15 min |
Nearby
Tornado Warnings in Florida, 2017Every tornado warning in 2017Tornadoes in 2017
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; radar from the NEXRAD Level II archive.