Alert archive / Georgia / Mesoscale Discussions in 2004

Mesoscale Discussion 1426

June 26, 20047 counties in Florida; 21 counties in Georgia

The Storm Prediction Center issued this mesoscale discussion at Jun 26, 2004, 3:36 PM EDT for 7 counties in Florida; 21 counties in Georgia. It was in force for 54 min.

The area

The outline as issued.

The facts

Issued: Jun 26, 2004, 3:36 PM EDT (19:36 UTC)
Expired: Jun 26, 2004, 4:30 PM EDT
In force: 54 min
Issued by: the Storm Prediction Center

All 28 counties

Baker County, FL, Columbia County, FL, Hamilton County, FL, Jefferson County, FL, Madison County, FL, Nassau County, FL, Suwannee County, FL, Atkinson County, GA, Berrien County, GA, Brantley County, GA, Brooks County, GA, Camden County, GA, Charlton County, GA, Clinch County, GA, Coffee County, GA, Colquitt County, GA, Cook County, GA, Echols County, GA, Glynn County, GA, Irwin County, GA, Lanier County, GA, Lowndes County, GA, Pierce County, GA, Thomas County, GA, Tift County, GA, Turner County, GA, Ware County, GA, Worth County, GA

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 7.6 hours before the alert went out and 137 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: 794 J/kg
Mixed-layer CIN: -61 J/kg
Mixed-layer LCL: 974 m above ground
0-6 km bulk shear: 18 kt
0-1 km storm-relative helicity: 43 m²/s²
0-3 km storm-relative helicity: 78 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 25, 8:35 PM EDT	Mesoscale Discussion	SPC	Calhoun, Escambia, Gadsden, Holmes, Okaloosa, Santa Rosa and 2 more	55 min
Jun 26, 12:47 PM EDT	Mesoscale Discussion	SPC	Calhoun, Gadsden, Hamilton, Holmes, Jackson, Jefferson and 5 more	58 min
Jun 26, 1:40 PM EDT	Severe Thunderstorm Watch	SPC	Baker, Columbia, Duval, Gadsden, Hamilton, Jefferson and 5 more	6 hr
Jun 26, 5:57 PM EDT	Mesoscale Discussion	SPC	Baker, Clay, Duval, Nassau, Saint Johns, Union	63 min

Nearby

Mesoscale Discussions in Georgia, 2004 Mesoscale Discussions in Florida, 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.