Alert archive / Georgia / Mesoscale Discussions in 2016

Mesoscale Discussion 324

April 1, 20168 counties in Alabama; 23 counties in Georgia

The Storm Prediction Center issued this mesoscale discussion at Apr 1, 2016, 4:46 AM CDT for 8 counties in Alabama; 23 counties in Georgia. It was in force for 89 min.

The area

The outline as issued.

The facts

Issued
Apr 1, 2016, 4:46 AM CDT (09:46 UTC)
Expired
Apr 1, 2016, 6:15 AM CDT
In force
89 min
Issued by
the Storm Prediction Center
Chance of a watch
40%
All 31 counties

Barbour County, AL, Bullock County, AL, Coffee County, AL, Crenshaw County, AL, Dale County, AL, Henry County, AL, Pike County, AL, Russell County, AL, Calhoun County, GA, Chattahoochee County, GA, Clay County, GA, Crisp County, GA, Dooly County, GA, Dougherty County, GA, Irwin County, GA, Lee County, GA, Macon County, GA, Marion County, GA, Muscogee County, GA, Pulaski County, GA, Quitman County, GA, Randolph County, GA, Schley County, GA, Stewart County, GA, Sumter County, GA, Terrell County, GA, Tift County, GA, Turner County, GA, Webster County, GA, Wilcox County, GA, Worth County, GA

The radar

The Ft Rucker radar (KEOX), 71 km from the middle of the area, began a volume at 09:46 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 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 00:00Z, 9.8 hours before the alert went out and 164 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 2016-04-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 643 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 2016-04-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 183 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
643 J/kg
Mixed-layer CIN
-17 J/kg
Mixed-layer LCL
675 m above ground
0-6 km bulk shear
52 kt
0-1 km storm-relative helicity
183 m²/s²
0-3 km storm-relative helicity
185 m²/s²
Significant tornado parameter
0.9
Supercell composite
4.9

Open this sounding in Storm Lab

The text

As transmitted.

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SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 31, 7:41 PM CDTMesoscale DiscussionSPCCalhoun, Chambers, Cherokee, Clay, Cleburne, DeKalb and 6 more94 min
Mar 31, 8:14 PM CDTTornado WatchSPCBarbour, Bullock, Calhoun, Chambers, Cherokee, Clay and 8 more18 hr
Mar 31, 10:11 PM CDTMesoscale DiscussionSPCAutauga, Bullock, Calhoun, Chambers, Cherokee, Chilton and 14 more64 min
Apr 1, 2:03 AM CDTMesoscale DiscussionSPCAutauga, Bullock, Dallas, Elmore, Lee, Lowndes and 5 more57 min
Apr 1, 6:26 AM CDTTornado WatchSPCCoffee, Dale, Geneva, Henry, Houston12 hr
Apr 1, 10:40 AM CDTMesoscale DiscussionSPCBarbour, Coffee, Dale, Geneva, Henry, Houston and 2 more2 hr
Apr 1, 1:00 PM CDTMesoscale DiscussionSPCHenry, Houston60 min
Mar 31, 7:09 PM CDTMesoscale DiscussionSPCBrooks, Colquitt, Cook, Decatur, Grady, Lowndes and 3 more96 min
Apr 1, 12:31 AM CDTMesoscale DiscussionSPCBaldwin, Bleckley, Burke, Columbia, Dodge, Elbert and 18 more89 min
Apr 1, 1:48 PM CDTTornado WatchSPCAppling, Atkinson, Bacon, Baker, Ben Hill, Berrien and 50 more6 hr
Apr 1, 4:40 PM CDTMesoscale DiscussionSPCBrantley, Bryan, Camden, Charlton, Chatham, Clinch and 9 more65 min

Nearby

Mesoscale Discussions in Georgia, 2016Mesoscale Discussions in Alabama, 2016Every mesoscale discussion in 2016

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.