Alert archive / Georgia / Mesoscale Discussions in 2024

Mesoscale Discussion 366

April 3, 202410 counties in Florida; 20 counties in Georgia; Beaufort County, Jasper County, South Carolina

The Storm Prediction Center issued this mesoscale discussion at Apr 3, 2024, 8:34 AM EDT for 10 counties in Florida; 20 counties in Georgia; Beaufort County, Jasper County, South Carolina. It was in force for 56 min.

The area

The outline as issued.

The facts

Issued
Apr 3, 2024, 8:34 AM EDT (12:34 UTC)
Expired
Apr 3, 2024, 9:30 AM EDT
In force
56 min
Issued by
the Storm Prediction Center
Concerning
Tornado watch 85
All 32 counties

Baker County, FL, Columbia County, FL, Dixie County, FL, Gilchrist County, FL, Hamilton County, FL, Lafayette County, FL, Madison County, FL, Suwannee County, FL, Taylor County, FL, Union County, FL, Appling County, GA, Bacon County, GA, Brantley County, GA, Bryan County, GA, Bulloch County, GA, Camden County, GA, Charlton County, GA, Chatham County, GA, Clinch County, GA, Echols County, GA, Effingham County, GA, Evans County, GA, Glynn County, GA, Liberty County, GA, Long County, GA, McIntosh County, GA, Pierce County, GA, Tattnall County, GA, Ware County, GA, Wayne County, GA, Beaufort County, SC, Jasper County, SC

The radar

The Moody AFB radar (KVAX), 94 km from the middle of the area, began a volume at 12:36 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 watches that followed

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

The nearest sounding before it

Jacksonville, FL (KJAX), launched 12:00Z, 0.6 hours before the alert went out and 95 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, Jacksonville, FL at 12:00Z on 2024-04-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 48 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, Jacksonville, FL at 12:00Z on 2024-04-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 51 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
48 J/kg
Mixed-layer CIN
-277 J/kg
Mixed-layer LCL
666 m above ground
0-6 km bulk shear
60 kt
0-1 km storm-relative helicity
51 m²/s²
0-3 km storm-relative helicity
118 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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
Apr 3, 2:13 AM EDTMesoscale DiscussionSPCBay, Calhoun, Franklin, Gadsden, Gulf, Holmes and 8 more92 min
Apr 3, 5:16 AM EDTMesoscale DiscussionSPCBay, Calhoun, Franklin, Gadsden, Gulf, Jefferson and 6 more89 min
Apr 3, 5:51 AM EDTTornado WatchSPCBaker, Calhoun, Columbia, Dixie, Franklin, Gadsden and 10 more7 hr
Apr 3, 10:05 AM EDTMesoscale DiscussionSPCAlachua, Baker, Bradford, Citrus, Clay, Columbia and 12 more85 min
Apr 3, 10:43 AM EDTTornado WatchSPCAlachua, Bradford, Citrus, Clay, Duval, Flagler and 14 more6 hr
Apr 3, 1:02 PM EDTMesoscale DiscussionSPCCitrus, Flagler, Hernando, Lake, Levy, Marion and 7 more88 min
Apr 3, 3:22 PM EDTMesoscale DiscussionSPCBrevard, Hillsborough, Manatee, Orange, Osceola, Polk and 2 more83 min
Apr 2, 9:43 PM EDTMesoscale DiscussionSPCCarroll, Heard, Troup2 hr
Apr 2, 11:45 PM EDTMesoscale DiscussionSPCCarroll, Heard, Troup2 hr
Apr 3, 1:00 AM EDTTornado WatchSPCBaldwin, Barrow, Bleckley, Burke, Columbia, Crisp and 31 more7 hr
Apr 3, 2:34 AM EDTTornado WatchSPCBaker, Ben Hill, Calhoun, Clay, Dougherty, Early and 10 more5 hr
Apr 3, 3:53 AM EDTMesoscale DiscussionSPCAppling, Bacon, Baldwin, Ben Hill, Bibb, Bleckley and 54 more97 min

Nearby

Mesoscale Discussions in Georgia, 2024Mesoscale Discussions in Florida, 2024Mesoscale Discussions in South Carolina, 2024Every mesoscale discussion in 2024

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.