Alert archive / Florida / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 57, NWS Jacksonville, FL

April 29, 1996Alachua County, Bradford County, Florida

NWS Jacksonville, FL issued this severe thunderstorm warning at Apr 29, 1996, 8:11 PM EDT for Alachua County, Bradford County, Florida. It was in force for 64 min. 2 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Apr 29, 1996, 8:11 PM EDT (00:11 UTC)
Expired
Apr 29, 1996, 9:15 PM EDT
In force
64 min
Issued by
NWS Jacksonville, FL
Area
Whole counties

Counties Alachua County, FL, Bradford County, FL

What was reported inside it

TimeReportWhereRemark
Apr 29, 8:11 PM EDTThunderstorm Wind 70(Gnv)Gainesville Arp, FL
Apr 29, 8:22 PM EDTThunderstorm Wind 60Gainesville, FL

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The nearest sounding before it

Cape Canaveral, FL (KXMR), launched 00:00Z, 0.2 hours before the alert went out and 227 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-pSkew-T log-p diagram, Cape Canaveral, FL at 00:00Z on 1996-04-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1159 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Cape Canaveral, FL at 00:00Z on 1996-04-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 56 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
1159 J/kg
Mixed-layer CIN
-29 J/kg
Mixed-layer LCL
981 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
56 m²/s²
0-3 km storm-relative helicity
75 m²/s²
Significant tornado parameter
0.3
Supercell composite
4.2

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.

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 29, 10:31 PM EDTSevere Thunderstorm WarningJAXClay59 min
Apr 29, 11:28 PM EDTSevere Thunderstorm WarningJAXDuval, Nassau62 min
Apr 30, 7:17 AM EDTSevere Thunderstorm WarningJAXPutnam43 min
Apr 30, 7:30 AM EDTSevere Thunderstorm WarningJAXFlagler, Saint Johns45 min
Apr 30, 7:48 AM EDTTornado WarningJAXSaint Johns42 min

Nearby

Severe Thunderstorm Warnings in Florida, 1996Every severe thunderstorm warning in 1996

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.