Alert archive / Florida / Severe Thunderstorm Watches in 2004

Severe Thunderstorm Watch 368

June 1, 200417 counties in Florida; 7 counties in Georgia

The Storm Prediction Center issued this severe thunderstorm watch at Jun 1, 2004, 2:50 PM EDT for 17 counties in Florida; 7 counties in Georgia. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
Jun 1, 2004, 2:50 PM EDT (18:50 UTC)
Expired
Jun 1, 2004, 8:00 PM EDT
In force
5 hr
Issued by
the Storm Prediction Center
All 24 counties

Alachua County, FL, Baker County, FL, Bradford County, FL, Clay County, FL, Columbia County, FL, Dixie County, FL, Duval County, FL, Gilchrist County, FL, Hamilton County, FL, Lafayette County, FL, Madison County, FL, Nassau County, FL, Putnam County, FL, Saint Johns County, FL, Suwannee County, FL, Taylor County, FL, Union County, FL, Brantley County, GA, Camden County, GA, Charlton County, GA, Clinch County, GA, Echols County, GA, Glynn County, GA, Ware County, GA

Warnings issued inside it

7 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
Jun 1, 3:00 PM EDTSevere Thunderstorm WarningTAEMadison30 min
Jun 1, 3:05 PM EDTSevere Thunderstorm WarningJAXHamilton, Suwannee40 min
Jun 1, 4:34 PM EDTSevere Thunderstorm WarningJAXCharlton41 min
Jun 1, 4:49 PM EDTSevere Thunderstorm WarningJAXNassau41 min
Jun 1, 5:09 PM EDTSevere Thunderstorm WarningJAXDuval36 min
Jun 1, 5:52 PM EDTSevere Thunderstorm WarningJAXDuval38 min
Jun 1, 6:24 PM EDTSevere Thunderstorm WarningJAXSaint Johns51 min

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

The nearest sounding before it

Jacksonville, FL (KJAX), launched 12:00Z, 6.8 hours before the alert went out and 73 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, Jacksonville, FL at 12:00Z on 2004-06-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1404 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, Jacksonville, FL at 12:00Z on 2004-06-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -9 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
1404 J/kg
Mixed-layer CIN
-39 J/kg
Mixed-layer LCL
663 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
-9 m²/s²
0-3 km storm-relative helicity
23 m²/s²
Significant tornado parameter
-0.1
Supercell composite
-0.7

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 1, 10:26 AM EDTMesoscale DiscussionSPCBay, Calhoun, Escambia, Franklin, Gadsden, Gulf and 12 more64 min
Jun 1, 10:50 AM EDTSevere Thunderstorm WatchSPCBay, Calhoun, Escambia, Gadsden, Gulf, Holmes and 9 more7 hr
Jun 1, 12:07 PM EDTMesoscale DiscussionSPCBaker, Bay, Bradford, Calhoun, Clay, Columbia and 22 more83 min
Jun 1, 5:27 PM EDTMesoscale DiscussionSPCBay, Calhoun, Escambia, Gulf, Holmes, Jackson and 4 more93 min
Jun 1, 7:42 AM EDTMesoscale DiscussionSPCAtkinson, Baker, Ben Hill, Berrien, Bleckley, Calhoun and 37 more2 hr

Nearby

Severe Thunderstorm Watches in Florida, 2004Severe Thunderstorm Watches in Georgia, 2004Every severe thunderstorm watch in 2004

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.