Alert archive / Florida / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 119, NWS Jacksonville, FL

June 16, 2014Gilchrist County, Florida

NWS Jacksonville, FL issued this severe thunderstorm warning at Jun 16, 2014, 5:13 PM EDT for Gilchrist County, Florida. It was in force for 47 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 16, 2014, 5:13 PM EDT (21:13 UTC)
Expired: Jun 16, 2014, 6:00 PM EDT
In force: 47 min
Issued by: NWS Jacksonville, FL
Area: Storm-based polygon

County Gilchrist County, FL

The radar

The Moody AFB radar (KVAX), 131 km from the middle of the area, began a volume at 21:16 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, 9.2 hours before the alert went out and 163 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: 167 J/kg
Mixed-layer CIN: -127 J/kg
Mixed-layer LCL: 1338 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: -18 m²/s²
0-3 km storm-relative helicity: -10 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.

Hazardous weather outlook, Jun 15, 7:46 PM EDT, 21 hours 27 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 16, 12:38 PM EDT	Special Weather Statement	JAX	Saint Johns	37 min
Jun 16, 1:30 PM EDT	Special Weather Statement	JAX	Saint Johns	30 min
Jun 16, 2:22 PM EDT	Special Weather Statement	JAX	Saint Johns	28 min
Jun 16, 2:28 PM EDT	Severe Thunderstorm Warning	JAX	Clay, Putnam, Saint Johns	47 min
Jun 16, 3:24 PM EDT	Special Weather Statement	JAX	Alachua	36 min
Jun 16, 3:46 PM EDT	Special Weather Statement	JAX	Alachua	44 min
Jun 16, 4:20 PM EDT	Special Weather Statement	JAX	Alachua	40 min
Jun 16, 4:29 PM EDT	Severe Thunderstorm Warning	JAX	Alachua, Marion	46 min
Jun 16, 5:09 PM EDT	Special Weather Statement	JAX	Gilchrist, Union	51 min
Jun 16, 5:36 PM EDT	Special Weather Statement	JAX	Columbia	39 min
Jun 16, 5:52 PM EDT	Special Weather Statement	JAX	Hamilton	23 min
Jun 16, 6:03 PM EDT	Special Weather Statement	JAX	Hamilton, Suwannee	57 min
Jun 16, 2:09 PM EDT	Special Weather Statement	JAX	Wayne	36 min
Jun 16, 3:07 PM EDT	Special Weather Statement	JAX	Pierce	23 min
Jun 16, 3:28 PM EDT	Special Weather Statement	JAX	Pierce	32 min
Jun 16, 6:58 PM EDT	Special Weather Statement	JAX	Echols	32 min
Jun 16, 7:10 PM EDT	Special Weather Statement	JAX	Coffee	35 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.