Alert archive / Georgia / Mesoscale Discussions in 2003

Mesoscale Discussion 128

February 22, 2003Baker County, Duval County, Nassau County, Florida; 18 counties in Georgia; 14 counties in South Carolina

The Storm Prediction Center issued this mesoscale discussion at Feb 22, 2003, 10:59 AM EST for Baker County, Duval County, Nassau County, Florida; 18 counties in Georgia; 14 counties in South Carolina. It was in force for 61 min.

The area

The outline as issued.

The facts

Issued
Feb 22, 2003, 10:59 AM EST (15:59 UTC)
Expired
Feb 22, 2003, 12:00 PM EST
In force
61 min
Issued by
the Storm Prediction Center
All 35 counties

Baker County, FL, Duval County, FL, Nassau County, FL, Appling County, GA, Brantley County, GA, Bryan County, GA, Bulloch County, GA, Camden County, GA, Charlton County, GA, Chatham County, GA, Effingham County, GA, Evans County, GA, Glynn County, GA, Liberty County, GA, Long County, GA, McIntosh County, GA, Pierce County, GA, Screven County, GA, Tattnall County, GA, Ware County, GA, Wayne County, GA, Allendale County, SC, Bamberg County, SC, Barnwell County, SC, Beaufort County, SC, Berkeley County, SC, Charleston County, SC, Clarendon County, SC, Colleton County, SC, Dorchester County, SC, Georgetown County, SC, Hampton County, SC, Jasper County, SC, Orangeburg County, SC, Williamsburg County, SC

The watches that followed

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

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 12:00Z, 4.0 hours before the alert went out and 153 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, Charleston AFB, SC at 12:00Z on 2003-02-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 392 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, Charleston AFB, SC at 12:00Z on 2003-02-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 0 square meters per square second.1939Sfc1 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
392 J/kg
Mixed-layer CIN
-61 J/kg
Mixed-layer LCL
520 m above ground
0-6 km bulk shear
0 kt
0-1 km storm-relative helicity
0 m²/s²
0-3 km storm-relative helicity
0 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
Feb 21, 7:18 PM ESTMesoscale DiscussionSPCBaker, Bradford, Clay, Columbia, Duval, Hamilton and 7 more3 hr
Feb 21, 8:26 PM ESTMesoscale DiscussionSPCEscambia2 hr
Feb 21, 9:15 PM ESTTornado WatchSPCEscambia, Okaloosa, Santa Rosa6 hr
Feb 21, 11:22 PM ESTMesoscale DiscussionSPCEscambia, Okaloosa, Santa Rosa113 min
Feb 22, 12:40 AM ESTTornado WatchSPCBay, Calhoun, Gadsden, Gulf, Holmes, Jackson and 3 more6 hr
Feb 22, 1:35 AM ESTTornado WatchSPCEscambia, Holmes, Okaloosa, Santa Rosa, Walton5 hr
Feb 22, 4:51 AM ESTMesoscale DiscussionSPCBay, Calhoun, Escambia, Gadsden, Gulf, Holmes and 6 more114 min
Feb 22, 6:19 AM ESTMesoscale DiscussionSPCBay, Calhoun, Gadsden, Jackson, Jefferson, Leon and 4 more56 min
Feb 22, 6:50 AM ESTTornado WatchSPCBay, Calhoun, Dixie, Franklin, Gadsden, Gulf and 11 more5 hr
Feb 22, 11:55 AM ESTTornado WatchSPCAlachua, Baker, Bradford, Clay, Columbia, Duval and 6 more5 hr
Feb 22, 12:55 PM ESTMesoscale DiscussionSPCBrevard, Charlotte, DeSoto, Glades, Hardee, Highlands and 11 more3 hr
Feb 22, 1:33 PM ESTMesoscale DiscussionSPCBrevard, Charlotte, DeSoto, Dixie, Glades, Hardee and 13 more117 min
Feb 22, 1:49 PM ESTMesoscale DiscussionSPCAlachua, Bradford, Clay, Duval, Nassau, Putnam and 1 more116 min
Feb 22, 3:48 PM ESTMesoscale DiscussionSPCBrevard, Charlotte, DeSoto, Flagler, Hardee, Highlands and 14 more27 min
Feb 22, 12:14 AM ESTMesoscale DiscussionSPCBartow, Catoosa, Chattooga, Dade, Fannin, Floyd and 7 more4 hr
Feb 22, 3:47 AM ESTMesoscale DiscussionSPCBanks, Barrow, Bartow, Butts, Carroll, Catoosa and 44 more3 hr
Feb 22, 4:35 AM ESTTornado WatchSPCBarrow, Bartow, Butts, Carroll, Catoosa, Chattooga and 41 more2 hr
Feb 22, 10:14 AM ESTMesoscale DiscussionSPCCatoosa, Chattooga, Dade, Walker, Whitfield2 hr
Feb 22, 11:35 AM ESTTornado WatchSPCCatoosa, Chattooga, Dade, Dawson, Fannin, Gilmer and 5 more5 hr
Feb 22, 3:31 PM ESTMesoscale DiscussionSPCCatoosa, Murray, Walker, Whitfield119 min
Feb 22, 9:27 AM ESTMesoscale DiscussionSPCAiken, Calhoun, Chester, Chesterfield, Clarendon, Darlington and 14 more63 min
Feb 22, 9:45 AM ESTTornado WatchSPCChester, Chesterfield, Darlington, Dillon, Fairfield, Florence and 10 more6 hr
Feb 22, 11:47 AM ESTMesoscale DiscussionSPCDarlington, Dillon, Florence, Horry, Lee, Marion and 2 more88 min
Feb 22, 2:22 PM ESTMesoscale DiscussionSPCGeorgetown, Horry53 min
Feb 22, 2:40 PM ESTTornado WatchSPCMarion4 hr
Feb 22, 6:09 PM ESTMesoscale DiscussionSPCMarion66 min

Nearby

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