Alert archive / Florida / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 275, NWS Tallahassee, FL

November 1, 2018Wakulla County, Florida

NWS Tallahassee, FL issued this severe thunderstorm warning at Nov 1, 2018, 4:23 PM EDT for Wakulla County, Florida. It was in force for 23 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: Nov 1, 2018, 4:23 PM EDT (20:23 UTC)
Expired: Nov 1, 2018, 4:46 PM EDT
In force: 23 min
Issued by: NWS Tallahassee, FL
Area: Storm-based polygon
Tornado: Possible
Hail: 0.75 in
Wind: 60.0 mph

County Wakulla County, FL

The radar

The Tallahassee radar (KTLH), 28 km from the middle of the area, began a volume at 20:27 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, 8.4 hours before the alert went out and 29 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: 21 J/kg
Mixed-layer CIN: -16 J/kg
Mixed-layer LCL: 739 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 241 m²/s²
0-3 km storm-relative helicity: 221 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 Nov 1, 3:15 PM EDT, 1 hour 8 minutes earlier.

Area forecast discussion, Nov 1, 3:15 PM EDT, 1 hour 8 minutes before

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In the hours before

Special weather statement, Nov 1, 3:01 PM EDT, 1 hour 22 minutes before

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Local storm report, Nov 1, 3:33 PM EDT, 50 minutes before

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Special weather statement, Nov 1, 3:37 PM EDT, 46 minutes before

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Local storm report, Nov 1, 3:41 PM EDT, 42 minutes before

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Local storm report, Nov 1, 3:54 PM EDT, 29 minutes before

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Special weather statement, Nov 1, 4:15 PM EDT, 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
Nov 1, 3:58 AM EDT	Gale Warning	TAE		16 hr
Nov 1, 3:58 AM EDT	Small Craft Advisory	TAE		22 hr
Nov 1, 11:43 AM EDT	Special Marine Warning	TAE		2 hr
Nov 1, 1:39 PM EDT	Special Marine Warning	TAE		2 hr
Nov 1, 1:42 PM EDT	Special Weather Statement	TAE	Bay, Washington	48 min
Nov 1, 2:21 PM EDT	Special Weather Statement	TAE	Calhoun, Gulf	39 min
Nov 1, 3:01 PM EDT	Special Weather Statement	TAE	Calhoun, Franklin, Liberty	44 min
Nov 1, 3:37 PM EDT	Special Weather Statement	TAE	Franklin, Gadsden, Liberty	38 min
Nov 1, 4:15 PM EDT	Special Weather Statement	TAE	Wakulla	30 min
Nov 1, 4:42 PM EDT	Special Weather Statement	TAE	Leon	33 min
Nov 1, 5:22 PM EDT	Tornado Warning	TAE	Jefferson	23 min
Nov 1, 5:40 PM EDT	Tornado Warning	TAE	Jefferson	19 min
Nov 1, 5:53 PM EDT	Special Weather Statement	TAE	Taylor	37 min
Nov 1, 6:17 PM EDT	Special Weather Statement	TAE	Madison	43 min
Nov 1, 6:02 PM EDT	Special Weather Statement	TAE	Brooks, Lowndes	43 min
Nov 1, 6:44 PM EDT	Special Weather Statement	TAE	Lanier, Lowndes	46 min
Nov 1, 11:03 AM EDT	Special Weather Statement	TAE	Coffee	57 min
Nov 1, 11:24 AM EDT	Severe Thunderstorm Warning	TAE	Coffee	51 min
Nov 1, 12:04 PM EDT	Tornado Warning	TAE	Dale	26 min

Nearby

Severe Thunderstorm Warnings in Florida, 2018 Every severe thunderstorm warning in 2018

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.