Alert archive / Florida / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 92, NWS Jacksonville, FL

June 8, 2014Suwannee County, Florida

NWS Jacksonville, FL issued this severe thunderstorm warning at Jun 8, 2014, 7:07 PM EDT for Suwannee County, Florida. It was in force for 38 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: Jun 8, 2014, 7:07 PM EDT (23:07 UTC)
Expired: Jun 8, 2014, 7:45 PM EDT
In force: 38 min
Issued by: NWS Jacksonville, FL
Area: Storm-based polygon

County Suwannee County, FL

The radar

The Moody AFB radar (KVAX), 77 km from the middle of the area, began a volume at 23:10 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, 11.1 hours before the alert went out and 128 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: 659 J/kg
Mixed-layer CIN: -132 J/kg
Mixed-layer LCL: 924 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 28 m²/s²
0-3 km storm-relative helicity: 20 m²/s²
Significant tornado parameter: -0.0
Supercell composite: -0.8

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 Jacksonville, FL wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 8, 1:46 PM EDT, 5 hours 21 minutes earlier.

Area forecast discussion, Jun 8, 1:46 PM EDT, 5 hours 21 minutes before

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Hazardous weather outlook, Jun 8, 3:55 PM EDT, 3 hours 12 minutes before

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In the hours before

Special weather statement, Jun 8, 6:36 PM EDT, 31 minutes before

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Special weather statement, Jun 8, 6:40 PM EDT, 27 minutes before

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Special weather statement, Jun 8, 6:42 PM EDT, 25 minutes before

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Special weather statement, Jun 8, 6:43 PM EDT, 24 minutes before

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Special weather statement, Jun 8, 6:45 PM EDT, 22 minutes before

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Special weather statement, Jun 8, 6:58 PM EDT, 9 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 7, 8:08 PM EDT	Special Weather Statement	JAX	Suwannee	52 min
Jun 8, 10:04 AM EDT	River Flood Warning	JAX	Baker, Nassau	16 hr
Jun 8, 1:58 PM EDT	Special Weather Statement	JAX	Duval, Nassau	47 min
Jun 8, 2:23 PM EDT	Severe Thunderstorm Warning	JAX	Clay, Duval	52 min
Jun 8, 3:12 PM EDT	Special Weather Statement	JAX	Clay	33 min
Jun 8, 3:22 PM EDT	Special Weather Statement	JAX	Clay	38 min
Jun 8, 3:23 PM EDT	Special Weather Statement	JAX	Lake	52 min
Jun 8, 3:37 PM EDT	Special Weather Statement	JAX	Putnam	38 min
Jun 8, 3:51 PM EDT	Special Weather Statement	JAX	Bradford, Clay	39 min
Jun 8, 3:56 PM EDT	Severe Thunderstorm Warning	JAX	Bradford, Clay	49 min
Jun 8, 4:13 PM EDT	Severe Thunderstorm Warning	JAX	Putnam	35 min
Jun 8, 4:35 PM EDT	Special Weather Statement	JAX	Union	25 min
Jun 8, 4:39 PM EDT	Severe Thunderstorm Warning	JAX	Marion, Putnam	51 min
Jun 8, 4:41 PM EDT	Special Weather Statement	JAX	Putnam	34 min
Jun 8, 4:58 PM EDT	Special Weather Statement	JAX	Alachua	32 min
Jun 8, 5:00 PM EDT	Special Weather Statement	JAX	Flagler	30 min
Jun 8, 5:02 PM EDT	Special Weather Statement	JAX	Union	28 min
Jun 8, 5:24 PM EDT	Special Weather Statement	JAX	Lake	36 min
Jun 8, 5:26 PM EDT	Special Weather Statement	JAX	Union	34 min
Jun 8, 5:38 PM EDT	Special Weather Statement	JAX	Alachua	37 min
Jun 8, 5:39 PM EDT	Special Weather Statement	JAX	Marion	36 min
Jun 8, 5:58 PM EDT	Severe Thunderstorm Warning	JAX	Alachua, Marion	27 min
Jun 8, 6:00 PM EDT	Special Weather Statement	JAX	Marion	45 min
Jun 8, 6:05 PM EDT	Special Weather Statement	JAX	Hamilton	40 min
Jun 8, 6:11 PM EDT	Special Weather Statement	JAX	Columbia	34 min
Jun 8, 6:40 PM EDT	Special Weather Statement	JAX	Nassau	35 min
Jun 8, 6:42 PM EDT	Special Weather Statement	JAX	Suwannee	48 min
Jun 8, 6:43 PM EDT	Special Weather Statement	JAX	Columbia	32 min
Jun 8, 6:45 PM EDT	Special Weather Statement	JAX	Marion	30 min
Jun 8, 6:58 PM EDT	Special Weather Statement	JAX	Union	32 min
Jun 8, 7:20 PM EDT	Special Weather Statement	JAX	Gilchrist	55 min
Jun 8, 7:29 PM EDT	Special Weather Statement	JAX	Union	46 min
Jun 8, 7:32 PM EDT	Severe Thunderstorm Warning	JAX	Alachua, Columbia, Gilchrist	43 min
Jun 7, 10:16 PM EDT	Special Weather Statement	JAX	Appling, Wayne	59 min
Jun 8, 5:16 AM EDT	Special Weather Statement	JAX	Atkinson, Coffee, Jeff Davis	44 min
Jun 8, 5:54 AM EDT	Special Weather Statement	JAX	Appling, Bacon, Jeff Davis	36 min
Jun 8, 5:56 PM EDT	Special Weather Statement	JAX	Charlton	34 min
Jun 8, 6:08 PM EDT	Special Weather Statement	JAX	Ware	37 min
Jun 8, 6:36 PM EDT	Special Weather Statement	JAX	Atkinson	24 min

Nearby

Severe Thunderstorm Warnings in Florida, 2014 Every severe thunderstorm warning in 2014

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.