Alert archive / Florida / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 8, NWS Tallahassee, FL

January 27, 2021Madison County, Florida

NWS Tallahassee, FL issued this severe thunderstorm warning at Jan 27, 2021, 12:55 PM EST for Madison County, Florida. It was in force for 50 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: Jan 27, 2021, 12:55 PM EST (17:55 UTC)
Expired: Jan 27, 2021, 1:45 PM EST
In force: 50 min
Issued by: NWS Tallahassee, FL
Area: Storm-based polygon
Tornado: Possible
Hail: 0.75 in
Wind: 60.0 mph

County Madison County, FL

The radar

The Moody AFB radar (KVAX), 63 km from the middle of the area, began a volume at 17:53 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, 5.9 hours before the alert went out and 97 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: 128 J/kg
Mixed-layer CIN: -29 J/kg
Mixed-layer LCL: 548 m above ground
0-6 km bulk shear: 56 kt
0-1 km storm-relative helicity: 183 m²/s²
0-3 km storm-relative helicity: 308 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 1.6

Open this sounding in Storm Lab

The text

As transmitted.

071 
WUUS52 KTAE 271755
SVRTAE
FLC079-271845-
/O.NEW.KTAE.SV.W.0008.210127T1755Z-210127T1845Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Tallahassee FL
1255 PM EST Wed Jan 27 2021

The National Weather Service in Tallahassee has issued a

* Severe Thunderstorm Warning for...
  Southeastern Madison County in Big Bend of Florida...

* Until 145 PM EST.

* At 1254 PM EST, a severe thunderstorm was located 9 miles southwest
  of Madison, moving east at 40 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* Locations impacted include...
  Madison, Greenville, Lee, Moseley Hall and Hopewell. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3037 8319 3035 8319 3035 8321 3031 8321
      3029 8323 3026 8324 3026 8347 3030 8347
      3031 8365 3047 8364 3054 8325 3052 8324
      3047 8324 3046 8322 3042 8322 3041 8319
      3039 8317
TIME...MOT...LOC 1754Z 272DEG 33KT 3037 8354 

TORNADO...POSSIBLE
HAIL...<.75IN
WIND...60MPH
 
$$

11-MM

1 follow-up statement

583 
WWUS52 KTAE 271838
SVSTAE

Severe Weather Statement
National Weather Service Tallahassee FL
138 PM EST Wed Jan 27 2021

FLC079-271847-
/O.EXP.KTAE.SV.W.0008.000000T0000Z-210127T1845Z/
Madison FL-
138 PM EST Wed Jan 27 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN MADISON COUNTY
WILL EXPIRE AT 145 PM EST...
        
The storm which prompted the warning has moved out of the 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 3037 8319 3035 8319 3035 8321 3031 8321
      3029 8323 3026 8324 3026 8347 3030 8347
      3031 8365 3047 8364 3054 8325 3052 8324
      3047 8324 3046 8322 3042 8322 3041 8319
      3039 8317
TIME...MOT...LOC 1837Z 272DEG 33KT 3036 8308 

$$

11-MM

The office that day

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

Issued	Product	Office	Counties	Lasted
Jan 26, 7:27 PM EST	Areal Flood Advisory	TAE	Franklin, Gulf	3 hr
Jan 26, 7:33 PM EST	Special Marine Warning	TAE		87 min
Jan 26, 9:34 PM EST	Marine Dense Fog Advisory	TAE		15 hr
Jan 27, 1:50 AM EST	Small Craft Advisory	TAE		38 hr
Jan 27, 8:05 AM EST	Severe Thunderstorm Warning	TAE	Jackson	25 min
Jan 27, 8:26 AM EST	Severe Thunderstorm Warning	TAE	Jackson	34 min
Jan 27, 8:38 AM EST	Tornado Warning	TAE	Jackson	37 min
Jan 27, 8:46 AM EST	Special Weather Statement	TAE	Calhoun	44 min
Jan 27, 9:16 AM EST	Special Weather Statement	TAE	Bay, Washington	44 min
Jan 27, 9:27 AM EST	Special Weather Statement	TAE	Calhoun	63 min
Jan 27, 9:32 AM EST	Severe Thunderstorm Warning	TAE	Calhoun, Gadsden, Jackson, Liberty	43 min
Jan 27, 10:10 AM EST	Special Marine Warning	TAE		3 hr
Jan 27, 10:18 AM EST	Severe Thunderstorm Warning	TAE	Gadsden	42 min
Jan 27, 10:54 AM EST	Special Weather Statement	TAE	Gadsden, Leon	66 min
Jan 27, 10:59 AM EST	Severe Thunderstorm Warning	TAE	Gadsden, Leon, Liberty	46 min
Jan 27, 11:11 AM EST	Special Weather Statement	TAE	Franklin, Gulf, Liberty, Wakulla	49 min
Jan 27, 11:20 AM EST	Tornado Warning	TAE	Gadsden, Leon	25 min
Jan 27, 11:34 AM EST	Tornado Warning	TAE	Gadsden, Jefferson, Leon	26 min
Jan 27, 11:50 AM EST	Tornado Warning Tornado observed	TAE	Jefferson, Leon	40 min
Jan 27, 12:14 PM EST	Special Weather Statement	TAE	Franklin, Liberty	46 min
Jan 27, 12:21 PM EST	Tornado Warning	TAE	Jefferson, Madison, Taylor	39 min
Jan 27, 12:41 PM EST	Special Marine Warning	TAE		3 hr
Jan 27, 2:23 PM EST	Special Weather Statement	TAE	Dixie, Lafayette	82 min

Nearby

Severe Thunderstorm Warnings in Florida, 2021 Every 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; radar from the NEXRAD Level II archive.