Alert archive / Florida / Mesoscale Discussions in 2004

Mesoscale Discussion 1072

June 3, 200416 counties in Florida; 5 counties in Georgia

The Storm Prediction Center issued this mesoscale discussion at Jun 3, 2004, 3:41 PM EDT for 16 counties in Florida; 5 counties in Georgia. It was in force for 49 min.

The area

The outline as issued.

The facts

Issued: Jun 3, 2004, 3:41 PM EDT (19:41 UTC)
Expired: Jun 3, 2004, 4:30 PM EDT
In force: 49 min
Issued by: the Storm Prediction Center
Concerning: Severe thunderstorm watch 390

All 21 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, Levy County, FL, Marion County, FL, Nassau County, FL, Putnam County, FL, Suwannee County, FL, Union County, FL, Charlton County, GA, Clinch County, GA, Echols County, GA, Lanier County, GA, Ware County, GA

The watches that followed

Watches SPC issued over any of the same counties within four hours of this discussion.

Severe Thunderstorm Watch 392Jun 3, 4:35 PM EDT

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 7.7 hours before the alert went out and 130 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: 294 J/kg
Mixed-layer CIN: -61 J/kg
Mixed-layer LCL: 1023 m above ground
0-6 km bulk shear: 9 kt
0-1 km storm-relative helicity: 29 m²/s²
0-3 km storm-relative helicity: 64 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 2, 8:18 PM EDT	Mesoscale Discussion	SPC	Alachua, Baker, Bradford, Clay, Duval, Nassau and 2 more	57 min
Jun 3, 10:51 AM EDT	Mesoscale Discussion	SPC	Alachua, Baker, Bradford, Calhoun, Citrus, Clay and 21 more	2 hr
Jun 3, 12:00 PM EDT	Severe Thunderstorm Watch	SPC	Alachua, Baker, Bradford, Clay, Columbia, Dixie and 19 more	5 hr
Jun 3, 4:35 PM EDT	Severe Thunderstorm Watch	SPC	Baker, Bradford, Clay, Duval, Flagler, Lake and 6 more	4 hr

Nearby

Mesoscale Discussions in Florida, 2004 Mesoscale Discussions in Georgia, 2004 Every mesoscale discussion 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.