Alert archive / Florida / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 79, NWS Jacksonville, FL

May 12, 1995Hamilton County, Florida

NWS Jacksonville, FL issued this severe thunderstorm warning at May 12, 1995, 2:58 PM EDT for Hamilton County, Florida. It was in force for 2 hr.

The area

The counties it named.

The facts

Issued: May 12, 1995, 2:58 PM EDT (18:58 UTC)
Expired: May 12, 1995, 5:00 PM EDT
In force: 2 hr
Issued by: NWS Jacksonville, FL
Area: Whole counties

County Hamilton County, FL

The nearest sounding before it

Jacksonville, FL (KJAX), launched 12:00Z, 7.0 hours before the alert went out and 120 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: 63 J/kg
Mixed-layer CIN: -275 J/kg
Mixed-layer LCL: 1159 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 164 m²/s²
0-3 km storm-relative helicity: 225 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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.

In the hours before

Local storm report, May 12, 9:31 AM EDT, 5 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
May 11, 10:33 PM EDT	Severe Thunderstorm Warning	JAX	Lafayette	57 min
May 12, 12:14 AM EDT	Severe Thunderstorm Warning	JAX	Alachua	61 min
May 12, 1:24 AM EDT	Severe Thunderstorm Warning	JAX	Saint Johns	66 min
May 12, 2:00 AM EDT	Flash Flood Warning	JAX	Columbia	6 hr
May 12, 3:25 PM EDT	Severe Thunderstorm Warning	JAX	Saint Johns	65 min
May 12, 4:35 PM EDT	Severe Thunderstorm Warning	JAX	Suwannee	55 min
May 12, 5:06 PM EDT	Severe Thunderstorm Warning	JAX	Columbia	69 min
May 12, 5:22 PM EDT	Tornado Warning	JAX	Gilchrist	68 min
May 12, 5:29 PM EDT	Severe Thunderstorm Warning	JAX	Baker	61 min
May 12, 5:55 PM EDT	Severe Thunderstorm Warning	JAX	Saint Johns	65 min
May 12, 6:14 PM EDT	Severe Thunderstorm Warning	JAX	Putnam	61 min
May 12, 7:15 PM EDT	Severe Thunderstorm Warning	JAX	Putnam	75 min

Nearby

Severe Thunderstorm Warnings in Florida, 1995 Every severe thunderstorm warning in 1995

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.