Alert archive / Georgia / Mesoscale Discussions in 2005

Mesoscale Discussion 415

March 27, 20057 counties in Alabama; 16 counties in Florida; 34 counties in Georgia

The Storm Prediction Center issued this mesoscale discussion at Mar 27, 2005, 6:53 AM CST for 7 counties in Alabama; 16 counties in Florida; 34 counties in Georgia. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued
Mar 27, 2005, 6:53 AM CST (12:53 UTC)
Expired
Mar 27, 2005, 9:00 AM CST
In force
2 hr
Issued by
the Storm Prediction Center
All 57 counties

Barbour County, AL, Coffee County, AL, Covington County, AL, Dale County, AL, Geneva County, AL, Henry County, AL, Houston County, AL, Bay County, FL, Calhoun County, FL, Escambia County, FL, Franklin County, FL, Gadsden County, FL, Gulf County, FL, Holmes County, FL, Jackson County, FL, Jefferson County, FL, Leon County, FL, Liberty County, FL, Okaloosa County, FL, Santa Rosa County, FL, Wakulla County, FL, Walton County, FL, Washington County, FL, Baker County, GA, Ben Hill County, GA, Berrien County, GA, Brooks County, GA, Calhoun County, GA, Clay 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, Lee County, GA, Miller County, GA, Mitchell County, GA, Montgomery County, GA, Pulaski County, GA, Quitman County, GA, Randolph County, GA, Seminole 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, 0.9 hours before the alert went out and 134 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 2005-03-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 253 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 2005-03-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 408 square meters per square second.1939587897Sfc1 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
253 J/kg
Mixed-layer CIN
-97 J/kg
Mixed-layer LCL
687 m above ground
0-6 km bulk shear
57 kt
0-1 km storm-relative helicity
408 m²/s²
0-3 km storm-relative helicity
497 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.3

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
Mar 26, 6:05 PM CSTSevere Thunderstorm WatchSPCBibb, Blount, Calhoun, Chambers, Cherokee, Chilton and 23 more3 hr
Mar 26, 8:45 PM CSTTornado WatchSPCAutauga, Baldwin, Bibb, Blount, Bullock, Butler and 44 more7 hr
Mar 26, 9:00 PM CSTTornado WatchSPCBarbour, Dale, Geneva, Henry, Houston, Lee and 1 more7 hr
Mar 26, 10:43 PM CSTMesoscale DiscussionSPCAutauga, Barbour, Bibb, Bullock, Butler, Chilton and 24 more62 min
Mar 27, 1:14 AM CSTMesoscale DiscussionSPCAutauga, Baldwin, Barbour, Bibb, Blount, Bullock and 50 more91 min
Mar 27, 2:27 AM CSTMesoscale DiscussionSPCBaldwin, Barbour, Bullock, Butler, Coffee, Conecuh and 13 more63 min
Mar 27, 3:27 AM CSTMesoscale DiscussionSPCChoctaw, Clarke, Greene, Hale, Lamar, Marengo and 5 more33 min
Mar 27, 3:45 AM CSTTornado WatchSPCBarbour, Bullock, Coffee, Covington, Crenshaw, Dale and 6 more6 hr
Mar 27, 9:08 AM CSTMesoscale DiscussionSPCCovington, Geneva, Houston37 min
Mar 27, 9:35 AM CSTTornado WatchSPCBarbour, Bullock, Coffee, Covington, Crenshaw, Dale and 5 more7 hr
Mar 27, 11:06 AM CSTMesoscale DiscussionSPCAutauga, Bibb, Blount, Butler, Calhoun, Cherokee and 33 more54 min
Mar 27, 11:40 AM CSTTornado WatchSPCAutauga, Bibb, Blount, Calhoun, Chambers, Cherokee and 25 more5 hr
Mar 27, 2:24 PM CSTMesoscale DiscussionSPCAutauga, Barbour, Bibb, Blount, Bullock, Chilton and 23 more2 hr
Mar 27, 4:55 PM CSTTornado WatchSPCBarbour, Blount, Bullock, Calhoun, Chambers, Cherokee and 22 more7 hr
Mar 26, 11:05 PM CSTTornado WatchSPCBaker, Columbia, Duval, Nassau, Union5 hr
Mar 27, 12:13 PM CSTMesoscale DiscussionSPCAppling, Atkinson, Bacon, Baker, Ben Hill, Berrien and 35 more2 hr
Mar 27, 2:55 PM CSTMesoscale DiscussionSPCAtkinson, Baker, Ben Hill, Berrien, Calhoun, Coffee and 22 more2 hr

Nearby

Mesoscale Discussions in Georgia, 2005Mesoscale Discussions in Florida, 2005Mesoscale Discussions in Alabama, 2005Every mesoscale discussion in 2005

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.