Alert archive / Florida / Tornado Warnings in 2021

Tornado Warning 13, NWS Tallahassee, FL

March 18, 2021Bay County, Washington County, Florida

NWS Tallahassee, FL issued this tornado warning at Mar 18, 2021, 6:02 AM CDT for Bay County, Washington County, Florida. It was in force for 28 min. 3 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, 6:02 AM CDT (11:02 UTC)
Expired
Mar 18, 2021, 6:30 AM CDT
In force
28 min
Issued by
NWS Tallahassee, FL
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

Counties Bay County, FL, Washington County, FL

The radar

The Eglin Afb radar (KEVX), 12 km from the middle of the area, began a volume at 11:05 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

TimeReportWhereRemark
Mar 18, 6:02 AM CDTTORNADO2 Ese Red Head, FLTDS OBSERVED ON RADAR OVER A FORESTED AREA WITH TREE DAMAGE. NO STRUCTURAL DAMAGE REPORTED.
Mar 18, 6:03 AM CDTTORNADONw Florida Beaches Intl, FLEF0 TORNADO CONFIRMED FROM STORM SURVEY.
Mar 18, 6:04 AM CDTTSTM WND GST 82Nw Florida Beaches Intl, FLAT 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.

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.

IssuedProductOfficeLasted
Mar 17, 11:02 PM CDTTornado WatchSPC9 hr

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 00:00Z, 11.0 hours before the alert went out and 147 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-pSkew-T log-p diagram, Tallahassee Rgnl, FL at 00:00Z on 2021-03-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Tallahassee Rgnl, FL at 00:00Z on 2021-03-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 126 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
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

Open this sounding in Storm Lab

The text

As transmitted.

056 
WFUS52 KTAE 181102
TORTAE
FLC005-133-181130-
/O.NEW.KTAE.TO.W.0013.210318T1102Z-210318T1130Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Tallahassee FL
602 AM CDT Thu Mar 18 2021

The National Weather Service in Tallahassee has issued a

* Tornado Warning for...
  Northern Bay County in the Panhandle of Florida...
  Southern Washington County in the Panhandle of Florida...

* Until 630 AM CDT.
    
* At 602 AM CDT, a severe thunderstorm capable of producing a tornado
  was located 11 miles southwest of Vernon, moving east at 20 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
  northern Bay and southern Washington Counties, including the
  following locations... Red Head, Gainer Spring, Bennett, Porter
  Lake, Spring Hollow, Greenhead, Riverside and Ebro.

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 3054 8588 3062 8555 3035 8551 3032 8583
      3047 8589 3047 8588 3048 8587 3050 8586
      3051 8588 3052 8588 3052 8589 3053 8588
      3053 8589
TIME...MOT...LOC 1102Z 257DEG 20KT 3047 8580 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

42-DVD

The office that day

Everything else NWS Tallahassee, FL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 18, 3:18 AM CDTSpecial Marine WarningTAE3 hr
Mar 18, 3:45 AM CDTSpecial Weather StatementTAEHolmes, Walton75 min
Mar 18, 4:29 AM CDTSevere Thunderstorm WarningTAEHolmes, Walton, Washington61 min
Mar 18, 5:40 AM CDTSevere Thunderstorm WarningTAEBay, Walton, Washington64 min
Mar 18, 5:44 AM CDTSpecial Marine WarningTAE3 hr
Mar 18, 6:05 AM CDTTornado WarningTAEBay, Calhoun, Gulf40 min
Mar 18, 6:19 AM CDTSevere Thunderstorm WarningTAEBay, Calhoun, Franklin, Gulf, Holmes, Jackson and 2 more86 min
Mar 18, 6:48 AM CDTTornado WarningTAEBay, Gulf27 min
Mar 18, 7:19 AM CDTSevere Thunderstorm WarningTAECalhoun, Franklin, Gadsden, Gulf, Leon, Liberty and 1 more56 min
Mar 18, 7:24 AM CDTSevere Thunderstorm WarningTAEGadsden, Leon, Liberty51 min
Mar 18, 8:08 AM CDTSpecial Marine WarningTAE2 hr
Mar 18, 8:11 AM CDTSevere Thunderstorm WarningTAEFranklin, Gadsden, Gulf, Jefferson, Leon, Liberty and 1 more64 min
Mar 18, 9:07 AM CDTSpecial Weather StatementTAEJefferson, Wakulla38 min
Mar 18, 9:52 AM CDTSpecial Weather StatementTAEJefferson, Madison53 min
Mar 18, 10:04 AM CDTSpecial Marine WarningTAE116 min
Mar 18, 10:49 AM CDTSpecial Weather StatementTAETaylor41 min
Mar 18, 11:36 AM CDTSpecial Weather StatementTAEDixie, Lafayette84 min
Mar 18, 11:55 AM CDTSpecial Marine WarningTAE110 min
Mar 18, 12:21 PM CDTTornado WarningTAEDixie, Lafayette, Taylor24 min
Mar 18, 12:44 PM CDTSevere Thunderstorm WarningTAEDixie, Lafayette31 min
Mar 18, 1:06 PM CDTSpecial Weather StatementTAEDixie39 min

Nearby

Tornado Warnings in Florida, 2021Every tornado warning in 2021Tornadoes 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.