Alert archive / Florida / Mesoscale Discussions in 2006

Mesoscale Discussion 2170

October 27, 200624 counties in Florida; 16 counties in Georgia

The Storm Prediction Center issued this mesoscale discussion at Oct 27, 2006, 10:17 PM EDT for 24 counties in Florida; 16 counties in Georgia. It was in force for 118 min.

The area

The outline as issued.

The facts

Issued: Oct 27, 2006, 10:17 PM EDT (02:17 UTC)
Expired: Oct 28, 2006, 12:15 AM EDT
In force: 118 min
Issued by: the Storm Prediction Center

All 40 counties

Alachua County, FL, Baker County, FL, Bradford County, FL, Citrus County, FL, Clay County, FL, Columbia County, FL, Dixie County, FL, Duval County, FL, Gilchrist County, FL, Hamilton County, FL, Hernando County, FL, Jefferson County, FL, Lafayette County, FL, Levy County, FL, Madison County, FL, Marion County, FL, Nassau County, FL, Pasco County, FL, Putnam County, FL, Saint Johns County, FL, Suwannee County, FL, Taylor County, FL, Union County, FL, Wakulla County, FL, Atkinson County, GA, Bacon County, GA, Brantley County, GA, Brooks County, GA, Camden County, GA, Charlton County, GA, Clinch County, GA, Echols County, GA, Glynn County, GA, Lanier County, GA, Long County, GA, Lowndes County, GA, McIntosh County, GA, Pierce County, GA, Ware County, GA, Wayne County, GA

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 00:00Z, 2.3 hours before the alert went out and 169 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: 1 J/kg
Mixed-layer CIN: -313 J/kg
Mixed-layer LCL: 1120 m above ground
0-6 km bulk shear: 57 kt
0-1 km storm-relative helicity: 102 m²/s²
0-3 km storm-relative helicity: 122 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
Oct 27, 8:20 PM EDT	Tornado Watch	SPC	Alachua, Baker, Bradford, Citrus, Columbia, Dixie and 9 more	5 hr
Oct 28, 12:10 AM EDT	Mesoscale Discussion	SPC	Alachua, Baker, Bradford, Citrus, Clay, Columbia and 18 more	65 min

Nearby

Mesoscale Discussions in Florida, 2006 Mesoscale Discussions in Georgia, 2006 Every mesoscale discussion in 2006

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.