Alert archive / Florida / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 581, NWS Tallahassee, FL

September 8, 20234 counties in Florida

NWS Tallahassee, FL issued this severe thunderstorm warning at Sep 8, 2023, 7:40 AM EDT for 4 counties in 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 counties it named.

The facts

Issued: Sep 8, 2023, 7:40 AM EDT (11:40 UTC)
Expired: Sep 8, 2023, 8:30 AM EDT
In force: 50 min
Issued by: NWS Tallahassee, FL
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Jefferson County, FL, Lafayette County, FL, Madison County, FL, Taylor County, FL

The radar

The Tallahassee radar (KTLH), 78 km from the middle of the area, began a volume at 11:40 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

Jacksonville, FL (KJAX), launched 00:00Z, 11.7 hours before the alert went out and 180 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: 2045 J/kg
Mixed-layer CIN: -26 J/kg
Mixed-layer LCL: 1263 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: 69 m²/s²
0-3 km storm-relative helicity: 77 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 Sep 8, 6:48 AM EDT, 52 minutes earlier.

Area forecast discussion, Sep 8, 6:48 AM EDT, 52 minutes before

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In the hours before

Special weather statement, Sep 8, 5:11 AM EDT, 2 hours 29 minutes before

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Local storm report, Sep 8, 5:18 AM EDT, 2 hours 22 minutes before

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Special weather statement, Sep 8, 5:34 AM EDT, 2 hours 6 minutes before

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Special weather statement, Sep 8, 6:42 AM EDT, 58 minutes before

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Special weather statement, Sep 8, 7:01 AM EDT, 39 minutes before

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Special weather statement, Sep 8, 7:16 AM EDT, 24 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
Sep 7, 8:07 PM EDT	Severe Thunderstorm Warning	TAE	Franklin, Liberty, Wakulla	53 min
Sep 7, 8:19 PM EDT	Special Marine Warning	TAE		86 min
Sep 7, 8:50 PM EDT	Special Weather Statement	TAE	Wakulla	25 min
Sep 7, 9:15 PM EDT	Special Marine Warning	TAE		90 min
Sep 7, 9:23 PM EDT	Special Weather Statement	TAE	Liberty	52 min
Sep 7, 9:35 PM EDT	Severe Thunderstorm Warning	TAE	Gadsden, Leon, Liberty, Wakulla	40 min
Sep 8, 1:03 AM EDT	Special Weather Statement	TAE	Bay	27 min
Sep 8, 1:38 AM EDT	Special Marine Warning	TAE		67 min
Sep 8, 1:54 AM EDT	Special Marine Warning	TAE		51 min
Sep 8, 2:15 AM EDT	Special Weather Statement	TAE	Bay	30 min
Sep 8, 2:29 AM EDT	Special Weather Statement	TAE	Madison	31 min
Sep 8, 2:42 AM EDT	Special Marine Warning	TAE		93 min
Sep 8, 2:44 AM EDT	Special Weather Statement	TAE	Bay	31 min
Sep 8, 2:53 AM EDT	Special Weather Statement	TAE	Madison	37 min
Sep 8, 3:59 AM EDT	Special Marine Warning	TAE		91 min
Sep 8, 5:34 AM EDT	Special Weather Statement	TAE	Madison	56 min
Sep 8, 5:58 AM EDT	Severe Thunderstorm Warning	TAE	Jefferson, Madison	47 min
Sep 8, 6:22 AM EDT	Areal Flood Advisory	TAE	Jefferson, Madison	113 min
Sep 8, 6:42 AM EDT	Special Weather Statement	TAE	Madison	33 min
Sep 8, 7:01 AM EDT	Special Weather Statement	TAE	Lafayette	44 min
Sep 8, 7:09 AM EDT	Areal Flood Advisory	TAE	Madison	2 hr
Sep 8, 7:16 AM EDT	Special Weather Statement	TAE	Madison	44 min
Sep 8, 8:19 AM EDT	Special Marine Warning	TAE		116 min
Sep 8, 8:26 AM EDT	Special Weather Statement	TAE	Lafayette, Taylor	64 min
Sep 8, 9:01 AM EDT	Special Marine Warning	TAE		59 min
Sep 8, 9:24 AM EDT	Special Marine Warning	TAE		67 min
Sep 8, 9:34 AM EDT	Special Marine Warning	TAE		116 min
Sep 8, 9:48 AM EDT	Special Weather Statement	TAE	Dixie	42 min
Sep 8, 10:01 AM EDT	Special Marine Warning	TAE		64 min
Sep 8, 12:44 PM EDT	Special Weather Statement	TAE	Gulf	46 min
Sep 8, 1:46 PM EDT	Special Weather Statement	TAE	Franklin	44 min
Sep 8, 2:12 PM EDT	Special Marine Warning	TAE		93 min
Sep 8, 3:25 PM EDT	Special Weather Statement	TAE	Gadsden	35 min
Sep 8, 3:47 PM EDT	Special Marine Warning	TAE		88 min
Sep 8, 4:05 PM EDT	Special Weather Statement	TAE	Leon	40 min
Sep 8, 7:26 PM EDT	Special Weather Statement	TAE	Madison	34 min
Sep 8, 7:59 PM EDT	Special Weather Statement	TAE	Madison	31 min
Sep 7, 8:58 PM EDT	Severe Thunderstorm Warning	TAE	Ben Hill, Irwin, Turner	47 min
Sep 7, 9:47 PM EDT	Severe Thunderstorm Warning	TAE	Ben Hill, Berrien, Irwin, Tift, Turner	43 min
Sep 7, 11:23 PM EDT	Special Weather Statement	TAE	Lanier	37 min
Sep 7, 11:47 PM EDT	Special Weather Statement	TAE	Irwin	28 min
Sep 7, 11:58 PM EDT	Special Weather Statement	TAE	Lowndes	32 min
Sep 8, 3:43 AM EDT	Special Weather Statement	TAE	Lowndes	32 min
Sep 8, 4:11 AM EDT	Special Weather Statement	TAE	Brooks, Lanier, Lowndes	34 min
Sep 8, 4:41 AM EDT	Special Weather Statement	TAE	Brooks, Lanier, Lowndes	34 min
Sep 8, 4:55 AM EDT	Areal Flood Advisory	TAE	Brooks, Lowndes	2 hr
Sep 8, 5:11 AM EDT	Special Weather Statement	TAE	Lanier, Lowndes	49 min
Sep 8, 4:28 PM EDT	Special Weather Statement	TAE	Lanier	47 min
Sep 8, 5:04 PM EDT	Severe Thunderstorm Warning	TAE	Lanier, Lowndes	42 min
Sep 8, 5:21 PM EDT	Special Weather Statement	TAE	Cook	39 min
Sep 8, 5:50 PM EDT	Special Weather Statement	TAE	Lanier	40 min
Sep 8, 6:04 PM EDT	Special Weather Statement	TAE	Brooks	26 min
Sep 8, 6:10 PM EDT	Severe Thunderstorm Warning	TAE	Brooks, Lowndes	33 min

Nearby

Severe Thunderstorm Warnings in Florida, 2023 Every severe thunderstorm warning in 2023

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.