Alert archive / Georgia / Mesoscale Discussions in 2017

Mesoscale Discussion 837

May 24, 201734 counties in Georgia; Barnwell County, South Carolina

The Storm Prediction Center issued this mesoscale discussion at May 24, 2017, 10:32 PM EDT for 34 counties in Georgia; Barnwell County, South Carolina. It was in force for 58 min.

The area

The outline as issued.

The facts

Issued
May 24, 2017, 10:32 PM EDT (02:32 UTC)
Expired
May 24, 2017, 11:30 PM EDT
In force
58 min
Issued by
the Storm Prediction Center
Chance of a watch
20%
All 35 counties

Appling County, GA, Atkinson County, GA, Bacon County, GA, Ben Hill County, GA, Berrien County, GA, Bulloch County, GA, Burke County, GA, Candler County, GA, Clinch County, GA, Coffee County, GA, Cook County, GA, Dodge County, GA, Emanuel County, GA, Evans County, GA, Glascock County, GA, Irwin County, GA, Jeff Davis County, GA, Jefferson County, GA, Jenkins County, GA, Johnson County, GA, Lanier County, GA, Laurens County, GA, Lowndes County, GA, Montgomery County, GA, Pierce County, GA, Richmond County, GA, Screven County, GA, Tattnall County, GA, Telfair County, GA, Tift County, GA, Toombs County, GA, Treutlen County, GA, Ware County, GA, Wheeler County, GA, Barnwell County, SC

The radar

The Robins AFB radar (KJGX), 105 km from the middle of the area, began a volume at 02:32 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

Jacksonville, FL (KJAX), launched 00:00Z, 2.5 hours before the alert went out and 187 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 00:00Z on 2017-05-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 136 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 00:00Z on 2017-05-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 161 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
136 J/kg
Mixed-layer CIN
-138 J/kg
Mixed-layer LCL
1242 m above ground
0-6 km bulk shear
52 kt
0-1 km storm-relative helicity
161 m²/s²
0-3 km storm-relative helicity
109 m²/s²
Significant tornado parameter
0.0
Supercell composite
8.6

Open this sounding in Storm Lab

The text

As transmitted.

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Nearby

Mesoscale Discussions in Georgia, 2017Mesoscale Discussions in South Carolina, 2017Every mesoscale discussion in 2017

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.