Alert archive / Georgia / Mesoscale Discussions in 2007

Mesoscale Discussion 22

January 5, 200710 counties in Florida; 17 counties in Georgia; 17 counties in South Carolina

The Storm Prediction Center issued this mesoscale discussion at Jan 5, 2007, 6:35 PM EST for 10 counties in Florida; 17 counties in Georgia; 17 counties in South Carolina. It was in force for 85 min.

The area

The outline as issued.

The facts

Issued
Jan 5, 2007, 6:35 PM EST (23:35 UTC)
Expired
Jan 5, 2007, 8:00 PM EST
In force
85 min
Issued by
the Storm Prediction Center
All 44 counties

Alachua County, FL, Baker County, FL, Bradford County, FL, Clay County, FL, Columbia County, FL, Duval County, FL, Marion County, FL, Nassau County, FL, Putnam County, FL, Union County, FL, 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, Beaufort County, SC, Berkeley County, SC, Calhoun County, SC, Charleston County, SC, Clarendon County, SC, Colleton County, SC, Dorchester County, SC, Florence County, SC, Georgetown County, SC, Hampton County, SC, Jasper County, SC, Marion County, SC, Orangeburg County, SC, Sumter County, SC, Williamsburg County, SC

The radar

The Charleston,SC radar (KCLX), 108 km from the middle of the area, began a volume at 23:36 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 12:00Z, 11.6 hours before the alert went out and 180 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 2007-01-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 557 joules per kilogram.LCLEL10008507005003002001001 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 2007-01-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 126 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
557 J/kg
Mixed-layer CIN
-4 J/kg
Mixed-layer LCL
470 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
126 m²/s²
0-3 km storm-relative helicity
148 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.3

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
Jan 5, 1:47 AM ESTMesoscale DiscussionSPCBay, Calhoun, Escambia, Gulf, Holmes, Jackson and 4 more28 min
Jan 5, 2:15 AM ESTTornado WatchSPCBay, Calhoun, Escambia, Gulf, Holmes, Jackson and 4 more6 hr
Jan 5, 4:13 AM ESTMesoscale DiscussionSPCBay, Calhoun, Escambia, Gulf, Holmes, Jackson and 5 more62 min
Jan 5, 6:46 AM ESTMesoscale DiscussionSPCBay, Calhoun, Escambia, Franklin, Gadsden, Gulf and 11 more59 min
Jan 5, 8:21 AM ESTTornado WatchSPCBay, Calhoun, Escambia, Franklin, Gadsden, Gulf and 10 more8 hr
Jan 5, 10:02 AM ESTMesoscale DiscussionSPCBay, Calhoun, Escambia, Franklin, Gadsden, Gulf and 10 more118 min
Jan 5, 12:31 PM ESTMesoscale DiscussionSPCBay, Calhoun, Franklin, Gadsden, Gulf, Jackson and 4 more119 min
Jan 5, 2:16 PM ESTMesoscale DiscussionSPCAlachua, Baker, Bradford, Clay, Columbia, Dixie and 17 more119 min
Jan 5, 2:49 PM ESTTornado WatchSPCAlachua, Baker, Bradford, Clay, Columbia, Dixie and 14 more7 hr
Jan 5, 12:06 PM ESTMesoscale DiscussionSPCBanks, Elbert, Forsyth, Franklin, Habersham, Hall and 6 more
Jan 5, 12:41 PM ESTTornado WatchSPCBurke, Columbia, Elbert, Franklin, Habersham, Hart and 5 more8 hr
Jan 5, 3:04 PM ESTMesoscale DiscussionSPCBurke, Columbia, Glascock, Jefferson, Lincoln, McDuffie and 3 more86 min
Jan 5, 4:26 PM ESTMesoscale DiscussionSPCAppling, Bryan, Bulloch, Candler, Chatham, Effingham and 13 more34 min
Jan 5, 4:35 PM ESTTornado WatchSPCBryan, Bulloch, Candler, Chatham, Effingham, Emanuel and 11 more7 hr
Jan 5, 4:20 PM ESTMesoscale DiscussionSPCMarlboro85 min
Jan 5, 5:53 PM ESTTornado WatchSPCDarlington, Dillon, Florence, Georgetown, Horry, Marion and 2 more7 hr

Nearby

Mesoscale Discussions in Georgia, 2007Mesoscale Discussions in South Carolina, 2007Mesoscale Discussions in Florida, 2007Every mesoscale discussion in 2007

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; radar from the NEXRAD Level II archive.