Alert archive / Georgia / Excessive Heat Warnings in 2010

Excessive Heat Warning 1, NWS Atlanta, GA

July 29, 201032 counties in Georgia

NWS Atlanta, GA issued this excessive heat warning at Jul 29, 2010, 2:52 PM EDT for 32 counties in Georgia. It took effect at Jul 29, 2010, 4:00 PM EDT. It was in force for 7 days. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jul 29, 2010, 2:52 PM EDT (18:52 UTC)
In effect from: Jul 29, 2010, 4:00 PM EDT
Expired: Aug 5, 2010, 8:00 PM EDT
In force: 7 days
Issued by: NWS Atlanta, GA

All 32 counties

Bibb County, GA, Bleckley County, GA, Chattahoochee County, GA, Crawford County, GA, Crisp County, GA, Dodge County, GA, Dooly County, GA, Emanuel County, GA, Harris County, GA, Houston County, GA, Johnson County, GA, Laurens County, GA, Macon County, GA, Marion County, GA, Montgomery County, GA, Muscogee County, GA, Peach County, GA, Pulaski County, GA, Schley County, GA, Stewart County, GA, Sumter County, GA, Talbot County, GA, Taylor County, GA, Telfair County, GA, Toombs County, GA, Treutlen County, GA, Twiggs County, GA, Upson County, GA, Webster County, GA, Wheeler County, GA, Wilcox County, GA, Wilkinson County, GA

The radar

The Robins AFB radar (KJGX), 45 km from the middle of the area, began a volume at 18:56 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 12:00Z, 6.9 hours before the alert went out and 282 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: 550 J/kg
Mixed-layer CIN: -114 J/kg
Mixed-layer LCL: 1107 m above ground
0-6 km bulk shear: 6 kt
0-1 km storm-relative helicity: 23 m²/s²
0-3 km storm-relative helicity: 28 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this excessive heat warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Atlanta, GA wrote its last area forecast discussion before this excessive heat warning went out at Jul 28, 7:56 PM EDT, 18 hours 56 minutes earlier.

Area forecast discussion, Jul 28, 7:56 PM EDT, 18 hours 56 minutes before

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Nearby

Excessive Heat Warnings in Georgia, 2010 Every excessive heat warning in 2010

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.