Alert archive / Georgia / Mesoscale Discussions in 2016

Mesoscale Discussion 269

March 24, 20169 counties in Florida; 20 counties in Georgia

The Storm Prediction Center issued this mesoscale discussion at Mar 24, 2016, 8:11 PM EDT for 9 counties in Florida; 20 counties in Georgia. It was in force for 64 min.

The area

The outline as issued.

The facts

Issued: Mar 24, 2016, 8:11 PM EDT (00:11 UTC)
Expired: Mar 24, 2016, 9:15 PM EDT
In force: 64 min
Issued by: the Storm Prediction Center

All 29 counties

Franklin County, FL, Hamilton County, FL, Jefferson County, FL, Lafayette County, FL, Leon County, FL, Madison County, FL, Suwannee County, FL, Taylor County, FL, Wakulla County, FL, Atkinson County, GA, Ben Hill County, GA, Berrien County, GA, Brooks County, GA, Coffee County, GA, Colquitt County, GA, Cook County, GA, Crisp County, GA, Dodge County, GA, Dooly County, GA, Echols County, GA, Irwin County, GA, Lanier County, GA, Lowndes County, GA, Pulaski County, GA, Telfair County, GA, Thomas County, GA, Tift County, GA, Turner County, GA, Wilcox County, GA

The radar

The Moody AFB radar (KVAX), 66 km from the middle of the area, began a volume at 00:10 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

Tallahassee Rgnl, FL (KTLH), launched 00:00Z, 0.2 hours before the alert went out and 100 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 852 J/kg
Mixed-layer CIN: -13 J/kg
Mixed-layer LCL: 624 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 127 m²/s²
0-3 km storm-relative helicity: 135 m²/s²
Significant tornado parameter: 0.4
Supercell composite: 2.7

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.

Issued	Product	Office	Counties	Lasted
Mar 24, 9:36 PM EDT	Mesoscale Discussion	SPC	Brevard, Indian River, Orange, Osceola, Seminole, Volusia	2 hr
Mar 25, 2:52 PM EDT	Mesoscale Discussion	SPC	Brevard, Broward, Indian River, Martin, Okeechobee, Palm Beach and 1 more	2 hr

Nearby

Mesoscale Discussions in Georgia, 2016 Mesoscale Discussions in Florida, 2016 Every 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.