Alert archive / Georgia / Mesoscale Discussions in 2003

Mesoscale Discussion 282

March 19, 20035 counties in Florida; 33 counties in Georgia

The Storm Prediction Center issued this mesoscale discussion at Mar 19, 2003, 12:53 AM EST for 5 counties in Florida; 33 counties in Georgia. It was in force for 3 hr.

The area

The outline as issued.

The facts

Issued
Mar 19, 2003, 12:53 AM EST (05:53 UTC)
Expired
Mar 19, 2003, 3:30 AM EST
In force
3 hr
Issued by
the Storm Prediction Center
All 38 counties

Hamilton County, FL, Jefferson County, FL, Leon County, FL, Madison County, FL, Taylor County, FL, Atkinson County, GA, Baker County, GA, Ben Hill County, GA, Berrien County, GA, Brooks County, GA, Calhoun County, GA, Clinch County, GA, Colquitt County, GA, Cook County, GA, Crisp County, GA, Decatur County, GA, Dooly County, GA, Dougherty County, GA, Echols County, GA, Grady County, GA, Irwin County, GA, Lanier County, GA, Lee County, GA, Lowndes County, GA, Macon County, GA, Miller County, GA, Mitchell County, GA, Pulaski County, GA, Randolph County, GA, Schley County, GA, Sumter County, GA, Terrell County, GA, Thomas County, GA, Tift County, GA, Turner County, GA, Webster County, GA, Wilcox County, GA, Worth County, GA

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 00:00Z, 5.9 hours before the alert went out and 80 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 00:00Z on 2003-03-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 81 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 00:00Z on 2003-03-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 29 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
81 J/kg
Mixed-layer CIN
-48 J/kg
Mixed-layer LCL
1272 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
29 m²/s²
0-3 km storm-relative helicity
114 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.

IssuedProductOfficeCountiesLasted
Mar 18, 7:39 PM ESTMesoscale DiscussionSPCBay, Calhoun, Holmes, Jackson, Okaloosa, Santa Rosa and 2 more3 hr
Mar 18, 8:30 PM ESTTornado WatchSPCEscambia, Okaloosa, Santa Rosa6 hr
Mar 18, 10:10 PM ESTMesoscale DiscussionSPCEscambia3 hr
Mar 18, 11:25 PM ESTTornado WatchSPCEscambia7 hr
Mar 19, 3:08 PM ESTMesoscale DiscussionSPCBrevard, Broward, Duval, Flagler, Glades, Hardee and 17 more3 hr
Mar 19, 6:32 PM ESTMesoscale DiscussionSPCBaker, Bradford, Brevard, Clay, Duval, Flagler and 10 more118 min
Mar 19, 9:00 AM ESTTornado WatchSPCCatoosa, Chattooga, Dade, Walker4 hr
Mar 19, 10:28 AM ESTMesoscale DiscussionSPCCatoosa, Dade, Walker2 hr
Mar 19, 10:48 AM ESTMesoscale DiscussionSPCBaldwin, Banks, Barrow, Burke, Butts, Clarke and 40 more117 min
Mar 19, 12:30 PM ESTTornado WatchSPCCatoosa, Chattooga, Dade, Floyd, Gordon, Walker and 1 more7 hr
Mar 19, 12:58 PM ESTMesoscale DiscussionSPCDade2 hr
Mar 19, 1:59 PM ESTMesoscale DiscussionSPCAtkinson, Baker, Ben Hill, Berrien, Brooks, Calhoun and 30 more3 hr
Mar 19, 2:30 PM ESTTornado WatchSPCCarroll, Haralson, Heard, Paulding, Polk, Troup6 hr
Mar 19, 3:06 PM ESTMesoscale DiscussionSPCDade114 min
Mar 19, 4:35 PM ESTMesoscale DiscussionSPCAtkinson, Bacon, Baker, Ben Hill, Berrien, Calhoun and 31 more115 min
Mar 19, 4:52 PM ESTMesoscale DiscussionSPCCatoosa, Chattooga, Dade, Floyd, Gordon, Haralson and 3 more113 min
Mar 19, 5:30 PM ESTSevere Thunderstorm WatchSPCBanks, Barrow, Bartow, Cherokee, Clarke, Dawson and 20 more6 hr
Mar 19, 5:50 PM ESTTornado WatchSPCBaldwin, Ben Hill, Bibb, Bleckley, Butts, Calhoun and 71 more5 hr

Nearby

Mesoscale Discussions in Georgia, 2003Mesoscale Discussions in Florida, 2003Every mesoscale discussion in 2003

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.