Alert archive / Florida / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 141, NWS Tallahassee, FL

May 24, 2020Holmes County, Walton County, Florida

NWS Tallahassee, FL issued this severe thunderstorm warning at May 24, 2020, 5:01 PM CDT for Holmes County, Walton County, Florida. It was in force for 29 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: May 24, 2020, 5:01 PM CDT (22:01 UTC)
Expired: May 24, 2020, 5:30 PM CDT
In force: 29 min
Issued by: NWS Tallahassee, FL
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Holmes County, FL, Walton County, FL

The radar

The Eglin Afb radar (KEVX), 21 km from the middle of the area, began a volume at 22:05 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.

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 10.0 hours before the alert went out and 166 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: 225 J/kg
Mixed-layer CIN: -127 J/kg
Mixed-layer LCL: 933 m above ground
0-6 km bulk shear: 3 kt
0-1 km storm-relative helicity: 20 m²/s²
0-3 km storm-relative helicity: 19 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Tallahassee, FL wrote its last area forecast discussion before this severe thunderstorm warning went out at May 24, 2:52 PM CDT, 2 hours 9 minutes earlier.

Area forecast discussion, May 24, 2:52 PM CDT, 2 hours 9 minutes before

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In the hours before

Special weather statement, May 24, 2:26 PM CDT, 2 hours 35 minutes before

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Special weather statement, May 24, 3:01 PM CDT, 2 hours before

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Special weather statement, May 24, 4:02 PM CDT, 59 minutes before

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Special weather statement, May 24, 4:40 PM CDT, 21 minutes before

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Special weather statement, May 24, 4:53 PM CDT, 8 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
May 24, 10:31 AM CDT	Rip Current Statement	TAE	Bay, Walton	11 hr
May 24, 2:26 PM CDT	Special Weather Statement	TAE	Walton	34 min
May 24, 3:01 PM CDT	Special Weather Statement	TAE	Walton	44 min
May 24, 4:02 PM CDT	Special Weather Statement	TAE	Holmes	43 min
May 24, 4:40 PM CDT	Special Weather Statement	TAE	Walton	50 min
May 24, 4:53 PM CDT	Special Weather Statement	TAE	Walton	52 min
May 24, 5:30 PM CDT	Special Weather Statement	TAE	Walton	45 min
May 24, 5:34 PM CDT	Special Weather Statement	TAE	Washington	41 min
May 24, 6:09 PM CDT	Special Weather Statement	TAE	Washington	36 min
May 24, 6:41 PM CDT	Special Weather Statement	TAE	Washington	49 min
May 24, 5:25 PM CDT	Special Weather Statement	TAE	Dale	35 min
May 24, 5:33 PM CDT	Special Weather Statement	TAE	Coffee	42 min
May 24, 6:15 PM CDT	Special Weather Statement	TAE	Dale	30 min

Nearby

Severe Thunderstorm Warnings in Florida, 2020 Every severe thunderstorm warning in 2020

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.