Alert archive / Georgia / Mesoscale Discussions in 2006

Mesoscale Discussion 472

April 8, 20068 counties in Alabama; 12 counties in Florida; 41 counties in Georgia

The Storm Prediction Center issued this mesoscale discussion at Apr 8, 2006, 8:37 AM CDT for 8 counties in Alabama; 12 counties in Florida; 41 counties in Georgia. It was in force for 113 min.

The area

The outline as issued.

The facts

Issued
Apr 8, 2006, 8:37 AM CDT (13:37 UTC)
Expired
Apr 8, 2006, 10:30 AM CDT
In force
113 min
Issued by
the Storm Prediction Center
All 61 counties

Barbour County, AL, Coffee County, AL, Covington County, AL, Dale County, AL, Geneva County, AL, Henry County, AL, Houston County, AL, Pike County, AL, Calhoun County, FL, Escambia County, FL, Gadsden County, FL, Holmes County, FL, Jackson County, FL, Jefferson County, FL, Leon County, FL, Liberty County, FL, Okaloosa County, FL, Santa Rosa County, FL, Walton County, FL, Washington County, FL, Atkinson County, GA, Baker County, GA, Ben Hill County, GA, Berrien County, GA, Brooks County, GA, Calhoun County, GA, Clay County, GA, Coffee County, GA, Colquitt County, GA, Cook County, GA, Crisp County, GA, Decatur County, GA, Dodge County, GA, Dooly County, GA, Dougherty County, GA, Early County, GA, Grady County, GA, Irwin County, GA, Jeff Davis County, GA, Lanier County, GA, Laurens County, GA, Lee County, GA, Lowndes County, GA, Miller County, GA, Mitchell County, GA, Pulaski County, GA, Quitman County, GA, Randolph County, GA, Schley County, GA, Seminole County, GA, Stewart County, GA, Sumter County, GA, Telfair County, GA, Terrell County, GA, Thomas County, GA, Tift County, GA, Turner County, GA, Webster County, GA, Wheeler County, GA, Wilcox County, GA, Worth County, GA

The watches that followed

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

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 1.6 hours before the alert went out and 115 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, Tallahassee Rgnl, FL at 12:00Z on 2006-04-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1769 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, Tallahassee Rgnl, FL at 12:00Z on 2006-04-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 168 square meters per square second.19395878Sfc1 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
1769 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
496 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
168 m²/s²
0-3 km storm-relative helicity
137 m²/s²
Significant tornado parameter
1.6
Supercell composite
7.9

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.

IssuedProductOfficeCountiesLasted
Apr 7, 7:28 PM CDTTornado WatchSPCAutauga, Bibb, Blount, Calhoun, Chambers, Cherokee and 37 more9 hr
Apr 7, 10:16 PM CDTMesoscale DiscussionSPCAutauga, Bibb, Blount, Calhoun, Cherokee, Chilton and 34 more89 min
Apr 7, 11:05 PM CDTMesoscale DiscussionSPCLauderdale115 min
Apr 8, 2:30 AM CDTMesoscale DiscussionSPCAutauga, Bibb, Blount, Bullock, Butler, Calhoun and 33 more90 min
Apr 8, 6:42 AM CDTMesoscale DiscussionSPCRussell93 min
Apr 8, 9:00 AM CDTTornado WatchSPCBarbour, Coffee, Covington, Crenshaw, Dale, Escambia and 4 more7 hr
Apr 8, 2:00 PM CDTMesoscale DiscussionSPCGeneva, Henry, Houston2 hr
Apr 8, 11:00 AM CDTMesoscale DiscussionSPCBaker, Columbia, Duval, Nassau, Union2 hr
Apr 8, 12:30 PM CDTTornado WatchSPCAlachua, Baker, Bradford, Clay, Columbia, Duval and 7 more8 hr
Apr 8, 3:22 PM CDTMesoscale DiscussionSPCAlachua, Baker, Bradford, Clay, Columbia, Duval and 7 more113 min
Apr 8, 3:45 PM CDTTornado WatchSPCBay, Calhoun, Franklin, Gadsden, Gulf, Holmes and 9 more4 hr
Apr 8, 5:59 PM CDTMesoscale DiscussionSPCAlachua, Baker, Bradford, Citrus, Clay, Columbia and 16 more91 min
Apr 7, 8:20 PM CDTTornado WatchSPCBanks, Bartow, Carroll, Catoosa, Chattooga, Cherokee and 25 more10 hr
Apr 8, 2:10 AM CDTTornado WatchSPCBaldwin, Barrow, Bibb, Butts, Chattahoochee, Clarke and 51 more6 hr
Apr 8, 2:45 AM CDTMesoscale DiscussionSPCBanks, Cherokee, Dawson, Forsyth, Franklin, Habersham and 8 more60 min

Nearby

Mesoscale Discussions in Georgia, 2006Mesoscale Discussions in Florida, 2006Mesoscale Discussions in Alabama, 2006Every 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.