Alert archive / Georgia / Mesoscale Discussions in 2006

Mesoscale Discussion 90

January 30, 200621 counties in Alabama; 12 counties in Florida; 23 counties in Georgia

The Storm Prediction Center issued this mesoscale discussion at Jan 30, 2006, 9:28 AM CST for 21 counties in Alabama; 12 counties in Florida; 23 counties in Georgia. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued: Jan 30, 2006, 9:28 AM CST (15:28 UTC)
Expired: Jan 30, 2006, 11:30 AM CST
In force: 2 hr
Issued by: the Storm Prediction Center

All 56 counties

Baldwin County, AL, Barbour County, AL, Bullock County, AL, Butler County, AL, Coffee County, AL, Conecuh County, AL, Covington County, AL, Crenshaw County, AL, Dale County, AL, Escambia County, AL, Geneva County, AL, Henry County, AL, Houston County, AL, Lee County, AL, Lowndes County, AL, Macon County, AL, Mobile County, AL, Monroe County, AL, Montgomery County, AL, Pike County, AL, Russell County, AL, Bay County, FL, Calhoun County, FL, Escambia County, FL, Gadsden County, FL, Gulf County, FL, Holmes County, FL, Jackson County, FL, Liberty County, FL, Okaloosa County, FL, Santa Rosa County, FL, Walton County, FL, Washington County, FL, Baker County, GA, Calhoun County, GA, Chattahoochee County, GA, Clay County, GA, Decatur County, GA, Dougherty County, GA, Early County, GA, Grady County, GA, Harris County, GA, Lee County, GA, Marion County, GA, Miller County, GA, Mitchell County, GA, Muscogee County, GA, Quitman County, GA, Randolph County, GA, Schley County, GA, Seminole County, GA, Stewart County, GA, Sumter County, GA, Talbot County, GA, Terrell County, GA, Webster County, GA

The radar

The Eglin Afb radar (KEVX), 80 km from the middle of the area, began a volume at 15:31 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The watches that followed

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

Severe Thunderstorm Watch 23Jan 30, 12:25 PM CST

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 3.5 hours before the alert went out and 215 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: 49 J/kg
Mixed-layer CIN: -77 J/kg
Mixed-layer LCL: 548 m above ground
0-6 km bulk shear: 53 kt
0-1 km storm-relative helicity: 141 m²/s²
0-3 km storm-relative helicity: 158 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
Jan 30, 12:24 PM CST	Severe Thunderstorm Watch	SPC	Baldwin, Barbour, Bullock, Butler, Coffee, Conecuh and 11 more	7 hr
Jan 30, 2:49 PM CST	Mesoscale Discussion	SPC	Barbour, Coffee, Covington, Dale, Escambia, Geneva and 2 more	116 min
Jan 30, 5:28 PM CST	Mesoscale Discussion	SPC	Appling, Atkinson, Bacon, Baker, Ben Hill, Berrien and 42 more	92 min

Nearby

Mesoscale Discussions in Georgia, 2006 Mesoscale Discussions in Alabama, 2006 Mesoscale Discussions in Florida, 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; radar from the NEXRAD Level II archive.