Alert archive / Georgia / Special Weather Statements in 2014

Special Weather Statement, NWS Atlanta, GA

July 21, 2014Chattahoochee County, Georgia

NWS Atlanta, GA issued this special weather statement at Jul 21, 2014, 1:45 PM EDT for Chattahoochee County, Georgia. It was in force for 45 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jul 21, 2014, 1:45 PM EDT (17:45 UTC)
Expired
Jul 21, 2014, 2:30 PM EDT
In force
45 min
Issued by
NWS Atlanta, GA

County Chattahoochee County, GA

The radar

The Maxwell AFB radar (KMXX), 99 km from the middle of the area, began a volume at 17:47 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 12:00Z, 5.8 hours before the alert went out and 126 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, Peachtre/Fal Fld, GA at 12:00Z on 2014-07-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 745 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, Peachtre/Fal Fld, GA at 12:00Z on 2014-07-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 1 square meters per square second.193958Sfc1 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
745 J/kg
Mixed-layer CIN
-8 J/kg
Mixed-layer LCL
536 m above ground
0-6 km bulk shear
4 kt
0-1 km storm-relative helicity
1 m²/s²
0-3 km storm-relative helicity
3 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Jul 21, 1:33 PM EDT, 12 minutes earlier.

Area forecast discussion, Jul 21, 1:33 PM EDT, 12 minutes before
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Hazardous weather outlook, Jul 21, 10:56 AM EDT, 2 hours 49 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1056 AM EDT MON JUL 21 2014

GAZ001>009-011>016-019>025-027-030>039-041>062-066>076-078>086-
089>098-102>113-221500-
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-
1056 AM EDT MON JUL 21 2014

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

.DAY ONE...THIS AFTERNOON AND TONIGHT...

SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED TODAY AND
TONIGHT.

DISCUSSION...

WIDESPREAD SHOWERS AND ISOLATED THUNDERSTORMS ARE EXPECTED TO
CONTINUE TODAY AS A STRONG STORM SYSTEM REMAINS ACROSS THE AREA.
THE MAIN CONCERN IS LOCALLY HEAVY RAINFALL...AND AREAS THAT HAVE
SLOW MOVING STORMS...OR WHERE STORMS TRAIN OVER THE SAME
LOCATION...FLASH FLOODING MAY BE A CONCERN.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY...

A WET WEEK IS EXPECTED...WITH GENERALLY SCATTERED TO WIDESPREAD
SHOWERS AND THUNDERSTORMS THROUGH SATURDAY. ISOLATED STRONG TO
BRIEFLY SEVERE STORMS CANNOT BE RULED OUT...PARTICULARLY THROUGH
THURSDAY...BUT THE MAIN THREAT WILL CONTINUE TO BE LOCALLY HEAVY
RAINFALL.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT REQUESTED BUT SPOTTERS ARE ENCOURAGED
TO SUBMIT REPORTS OF SEVERE WEATHER THROUGH THE WEB BY GOING TO
WEATHER.GOV/ATLANTA.

In the hours before

Special weather statement, Jul 21, 8:58 AM EDT, 4 hours 47 minutes before
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Special weather statement, Jul 21, 12:51 PM EDT, 54 minutes before
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Local storm report, Jul 21, 1:08 PM EDT, 37 minutes before
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Special weather statement, Jul 21, 1:45 PM EDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jul 20, 9:06 PM EDTSpecial Weather StatementFFCHeard, Meriwether, Troup54 min
Jul 20, 9:20 PM EDTFlash Flood WarningFFCCoweta, Heard, Troup6 hr
Jul 21, 8:58 AM EDTSpecial Weather StatementFFCCherokee32 min
Jul 21, 12:51 PM EDTSpecial Weather StatementFFCStewart, Webster54 min
Jul 21, 3:32 PM EDTSpecial Weather StatementFFCTelfair43 min
Jul 21, 3:35 PM EDTSpecial Weather StatementFFCDawson25 min
Jul 21, 3:51 PM EDTSpecial Weather StatementFFCHaralson39 min
Jul 21, 3:58 PM EDTSpecial Weather StatementFFCBibb32 min
Jul 21, 4:01 PM EDTSpecial Weather StatementFFCJasper44 min
Jul 21, 4:08 PM EDTSpecial Weather StatementFFCDawson37 min
Jul 21, 4:12 PM EDTSpecial Weather StatementFFCWheeler48 min
Jul 21, 4:43 PM EDTSpecial Weather StatementFFCWashington47 min
Jul 21, 4:46 PM EDTSpecial Weather StatementFFCFloyd44 min
Jul 21, 4:57 PM EDTSpecial Weather StatementFFCHaralson33 min
Jul 21, 5:13 PM EDTSpecial Weather StatementFFCMonroe47 min
Jul 21, 5:27 PM EDTSpecial Weather StatementFFCPolk33 min
Jul 21, 5:30 PM EDTSpecial Weather StatementFFCGlascock, Jefferson, Washington45 min
Jul 21, 5:58 PM EDTSpecial Weather StatementFFCPolk32 min
Jul 21, 6:15 PM EDTSpecial Weather StatementFFCJefferson45 min
Jul 21, 7:00 PM EDTSpecial Weather StatementFFCEmanuel45 min
Jul 21, 7:42 PM EDTSpecial Weather StatementFFCEmanuel, Jefferson48 min

Nearby

Special Weather Statements in Georgia, 2014Every special weather statement in 2014

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.