Alert archive / Georgia / Heat Advisories in 2015

Heat Advisory 16, NWS Atlanta, GA

July 22, 201540 counties in Georgia

NWS Atlanta, GA issued this heat advisory at Jul 22, 2015, 4:02 AM EDT for 40 counties in Georgia. It took effect at Jul 22, 2015, 2:00 PM EDT. It was in force for 6 hr.

The area

The counties it named.

The facts

Issued: Jul 22, 2015, 4:02 AM EDT (08:02 UTC)
In effect from: Jul 22, 2015, 2:00 PM EDT
Expired: Jul 22, 2015, 8:00 PM EDT
In force: 6 hr
Issued by: NWS Atlanta, GA

All 40 counties

Baldwin County, GA, Bibb County, GA, Bleckley County, GA, Chattahoochee County, GA, Crawford County, GA, Crisp County, GA, Dodge County, GA, Dooly County, GA, Emanuel County, GA, Glascock County, GA, Hancock County, GA, Harris County, GA, Houston County, GA, Jefferson County, GA, Johnson County, GA, Jones County, GA, Laurens County, GA, Macon County, GA, Marion County, GA, Monroe 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, Warren County, GA, Washington County, GA, Webster County, GA, Wheeler County, GA, Wilcox County, GA, Wilkinson County, GA

The radar

The Robins AFB radar (KJGX), 25 km from the middle of the area, began a volume at 08:07 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

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 8.0 hours before the alert went out and 128 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: 1188 J/kg
Mixed-layer CIN: -11 J/kg
Mixed-layer LCL: 1697 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: 78 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

What forecasters said that day

The local office's own words before this heat advisory 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 heat advisory went out at Jul 22, 3:54 AM EDT, 8 minutes earlier.

Area forecast discussion, Jul 22, 3:54 AM EDT, 8 minutes before

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Hazardous weather outlook, Jul 21, 7:21 PM EDT, 8 hours 41 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
721 PM EDT TUE JUL 21 2015

GAZ001>009-011>016-019>025-027-030>039-041>062-066>076-078>086-
089>098-102>113-222330-
BALDWIN-BANKS-BARROW-BARTOW-BIBB-BLECKLEY-BUTTS-CARROLL-CATOOSA-
CHATTAHOOCHEE-CHATTOOGA-CHEROKEE-CLARKE-CLAYTON-COBB-COWETA-
CRAWFORD-CRISP-DADE-DAWSON-DEKALB-DODGE-DOOLY-DOUGLAS-EMANUEL-
FANNIN-FAYETTE-FLOYD-FORSYTH-GILMER-GLASCOCK-GORDON-GREENE-
GWINNETT-HALL-HANCOCK-HARALSON-HARRIS-HEARD-HENRY-HOUSTON-JACKSON-
JASPER-JEFFERSON-JOHNSON-JONES-LAMAR-LAURENS-LUMPKIN-MACON-
MADISON-MARION-MERIWETHER-MONROE-MONTGOMERY-MORGAN-MURRAY-
MUSCOGEE-NEWTON-NORTH FULTON-OCONEE-OGLETHORPE-PAULDING-PEACH-
PICKENS-PIKE-POLK-PULASKI-PUTNAM-ROCKDALE-SCHLEY-SOUTH FULTON-
SPALDING-STEWART-SUMTER-TALBOT-TALIAFERRO-TAYLOR-TELFAIR-TOOMBS-
TOWNS-TREUTLEN-TROUP-TWIGGS-UNION-UPSON-WALKER-WALTON-WARREN-
WASHINGTON-WEBSTER-WHEELER-WHITE-WHITFIELD-WILCOX-WILKES-
WILKINSON-
721 PM EDT TUE JUL 21 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH AND CENTRAL GEORGIA.

.DAY ONE...TONIGHT...

ISOLATED STRONG TO SEVERE THUNDERSTORMS ARE POSSIBLE THROUGH THIS
EVENING.

WEATHER HAZARDS EXPECTED...

GUSTY WINDS...FREQUENT LIGHTNING AND BRIEF HEAVY RAINFALL...CAN BE
EXPECTED WITH ANY STRONG THUNDERSTORMS. ISOLATED STORMS COULD
PRODUCE DAMAGING WINDS.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY...

HEAT INDICES OF 105 OR GREATER WILL BE POSSIBLE OVER PORTIONS OF
CENTRAL GEORGIA ON WEDNESDAY.

ISOLATED STRONG THUNDERSTORMS WILL BE POSSIBLE DURING THE AFTERNOON AND
EVENING HOURS MOST EVERY DAY. GUSTY WINDS...FREQUENT LIGHTNING AND
BRIEF HEAVY RAINFALL WILL BE THE MAIN HAZARDS.

.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION WILL NOT BE NEEDED THROUGH TONIGHT.

The office that day

Everything else NWS Atlanta, GA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 21, 8:24 PM EDT	Special Weather Statement	FFC	Meriwether	36 min
Jul 21, 8:36 PM EDT	Special Weather Statement	FFC	Clayton, Fayette, Spalding	24 min
Jul 21, 8:55 PM EDT	Special Weather Statement	FFC	Harris	35 min
Jul 21, 8:59 PM EDT	Special Weather Statement	FFC	Spalding	31 min
Jul 21, 9:19 PM EDT	Special Weather Statement	FFC	Heard	26 min
Jul 21, 9:29 PM EDT	Special Weather Statement	FFC	Talbot	31 min
Jul 21, 9:43 PM EDT	Special Weather Statement	FFC	Coweta	32 min
Jul 21, 9:59 PM EDT	Special Weather Statement	FFC	Talbot	31 min
Jul 22, 3:45 PM EDT	Special Weather Statement	FFC	Dade	30 min
Jul 22, 4:13 PM EDT	Special Weather Statement	FFC	Catoosa, Walker	32 min
Jul 22, 4:15 PM EDT	Special Weather Statement	FFC	Floyd	30 min
Jul 22, 4:40 PM EDT	Special Weather Statement	FFC	Cobb	35 min
Jul 22, 4:45 PM EDT	Special Weather Statement	FFC	Whitfield	30 min
Jul 22, 5:07 PM EDT	Special Weather Statement	FFC	Murray	38 min
Jul 22, 5:16 PM EDT	Severe Thunderstorm Warning	FFC	Fannin, Gilmer, Murray	44 min
Jul 22, 5:31 PM EDT	Special Weather Statement	FFC	Crisp	29 min
Jul 22, 5:41 PM EDT	Special Weather Statement	FFC	Gordon	34 min
Jul 22, 5:52 PM EDT	Severe Thunderstorm Warning	FFC	Dawson, Fannin, Gilmer, Pickens	38 min
Jul 22, 6:13 PM EDT	Special Weather Statement	FFC	Pickens	32 min
Jul 22, 6:17 PM EDT	Special Weather Statement	FFC	Harris, Troup	28 min
Jul 22, 6:32 PM EDT	Special Weather Statement	FFC	Douglas	28 min
Jul 22, 6:47 PM EDT	Special Weather Statement	FFC	Harris	28 min
Jul 22, 6:59 PM EDT	Special Weather Statement	FFC	Clayton	31 min
Jul 22, 7:25 PM EDT	Special Weather Statement	FFC	Talbot	35 min
Jul 22, 7:32 PM EDT	Special Weather Statement	FFC	Clayton	28 min

Nearby

Heat Advisories in Georgia, 2015 Every heat advisory in 2015

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.