Alert archive / Georgia / Mesoscale Discussions in 2003

Mesoscale Discussion 286

March 19, 200346 counties in Georgia; 7 counties in North Carolina; 8 counties in South Carolina

The Storm Prediction Center issued this mesoscale discussion at Mar 19, 2003, 10:48 AM EST for 46 counties in Georgia; 7 counties in North Carolina; 8 counties in South Carolina. It was in force for 117 min.

The area

The outline as issued.

The facts

Issued
Mar 19, 2003, 10:48 AM EST (15:48 UTC)
Expired
Mar 19, 2003, 12:45 PM EST
In force
117 min
Issued by
the Storm Prediction Center
All 61 counties

Baldwin County, GA, Banks County, GA, Barrow County, GA, Burke County, GA, Butts County, GA, Clarke County, GA, Columbia County, GA, Dawson County, GA, Elbert County, GA, Forsyth County, GA, Franklin County, GA, Gilmer County, GA, Glascock County, GA, Greene County, GA, Gwinnett County, GA, Habersham County, GA, Hall County, GA, Hancock County, GA, Hart County, GA, Jackson County, GA, Jasper County, GA, Jefferson County, GA, Jenkins County, GA, Johnson County, GA, Jones County, GA, Lincoln County, GA, Lumpkin County, GA, Madison County, GA, McDuffie County, GA, Morgan County, GA, Newton County, GA, Oconee County, GA, Oglethorpe County, GA, Putnam County, GA, Rabun County, GA, Rockdale County, GA, Stephens County, GA, Taliaferro County, GA, Towns County, GA, Union County, GA, Walton County, GA, Warren County, GA, Washington County, GA, White County, GA, Wilkes County, GA, Wilkinson County, GA, Clay County, NC, Haywood County, NC, Henderson County, NC, Jackson County, NC, Macon County, NC, Polk County, NC, Transylvania County, NC, Abbeville County, SC, Anderson County, SC, Cherokee County, SC, Greenville County, SC, Laurens County, SC, Oconee County, SC, Pickens County, SC, Spartanburg County, SC

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 3.8 hours before the alert went out and 165 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, Peachtre/Fal Fld, GA at 12:00Z on 2003-03-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 21 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, Peachtre/Fal Fld, GA at 12:00Z on 2003-03-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 417 square meters per square second.1939587897117Sfc1 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
21 J/kg
Mixed-layer CIN
-267 J/kg
Mixed-layer LCL
479 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
417 m²/s²
0-3 km storm-relative helicity
730 m²/s²
Significant tornado parameter
0.0
Supercell composite
3.5

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 19, 12:53 AM ESTMesoscale DiscussionSPCAtkinson, Baker, Ben Hill, Berrien, Brooks, Calhoun and 27 more3 hr
Mar 19, 9:00 AM ESTTornado WatchSPCCatoosa, Chattooga, Dade, Walker4 hr
Mar 19, 10:28 AM ESTMesoscale DiscussionSPCCatoosa, Dade, Walker2 hr
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
Mar 19, 6:32 PM ESTMesoscale DiscussionSPCCamden, Charlton118 min

Nearby

Mesoscale Discussions in Georgia, 2003Mesoscale Discussions in South Carolina, 2003Mesoscale Discussions in North Carolina, 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.