Alert archive / Georgia / Special Weather Statements in 2014

Special Weather Statement, NWS Atlanta, GA

September 8, 2014DeKalb County, Fulton County, Georgia

NWS Atlanta, GA issued this special weather statement at Sep 8, 2014, 1:21 AM EDT for DeKalb County, Fulton County, Georgia. It was in force for 24 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
Sep 8, 2014, 1:21 AM EDT (05:21 UTC)
Expired
Sep 8, 2014, 1:45 AM EDT
In force
24 min
Issued by
NWS Atlanta, GA

Counties DeKalb County, GA, Fulton County, GA

The radar

The Atlanta radar (KFFC), 59 km from the middle of the area, began a volume at 05:20 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, 5.4 hours before the alert went out and 57 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 00:00Z on 2014-09-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 498 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 00:00Z on 2014-09-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -123 square meters per square second.1939Sfc1 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
498 J/kg
Mixed-layer CIN
-60 J/kg
Mixed-layer LCL
900 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
-123 m²/s²
0-3 km storm-relative helicity
-110 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.2

Open this sounding in Storm Lab

The text

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

041 
WWUS82 KFFC 080521
SPSFFC

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
121 AM EDT MON SEP 8 2014

GAZ033-044-045-080545-
121 AM EDT MON SEP 8 2014

...SIGNIFICANT WEATHER ADVISORY FOR HEAVY RAIN IN DEKALB AND FULTON
COUNTIES UNTIL 145 AM EDT...

AT 115 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM OVER LA VISTA...MOVING SOUTHEAST AT 5 MPH.

RUNOFF FROM THESE STORMS WILL CAUSE MINOR FLOODING OF SMALL CREEKS
AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES ACROSS
DEKALB AND FULTON COUNTIES...INCLUDING AREAS AROUND BUCKHEAD...LA
VISTA...BROOKHAVEN...TUCKER...DORAVILLE...CHAMBLEE...DUNWOODY...
BOLTON...BANKHEAD...ATLANTIC STATION...CHASTAIN MEMORIAL PARK...
PIEDMONT PARK...MIDTOWN...SANDY SPRINGS AND DRUID HILLS.
ADDITIONALLY...COUNTRY ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS
AND STREAMS ARE SUBJECT TO MINOR FLOODING.

&&

LAT...LON 3383 8445 3385 8446 3388 8444 3391 8445
      3397 8438 3398 8427 3397 8426 3396 8428
      3392 8426 3388 8421 3372 8412 3365 8449
      3379 8452
TIME...MOT...LOC 0521Z 331DEG 6KT 3382 8429

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 7, 8:03 PM EDTSpecial Weather StatementFFCHarris27 min
Sep 7, 10:31 PM EDTSpecial Weather StatementFFCGwinnett29 min
Sep 8, 12:38 AM EDTSpecial Weather StatementFFCPaulding37 min
Sep 8, 1:56 AM EDTSpecial Weather StatementFFCDeKalb34 min
Sep 8, 2:11 AM EDTFlash Flood WarningFFCDeKalb, Fulton6 hr
Sep 8, 3:56 AM EDTFlash Flood WarningFFCFulton6 hr
Sep 8, 4:44 PM EDTSpecial Weather StatementFFCLaurens31 min
Sep 8, 4:53 PM EDTSpecial Weather StatementFFCTreutlen37 min
Sep 8, 5:12 PM EDTSpecial Weather StatementFFCLaurens48 min
Sep 8, 5:24 PM EDTSevere Thunderstorm WarningFFCDodge, Laurens36 min
Sep 8, 5:36 PM EDTSpecial Weather StatementFFCDooly24 min
Sep 8, 5:44 PM EDTSpecial Weather StatementFFCPulaski31 min
Sep 8, 5:58 PM EDTSpecial Weather StatementFFCLaurens32 min
Sep 8, 6:15 PM EDTSpecial Weather StatementFFCPulaski30 min
Sep 8, 6:30 PM EDTSpecial Weather StatementFFCDodge30 min
Sep 8, 6:36 PM EDTSpecial Weather StatementFFCHouston24 min
Sep 8, 6:46 PM EDTSpecial Weather StatementFFCPulaski29 min
Sep 8, 6:57 PM EDTSpecial Weather StatementFFCDodge33 min
Sep 8, 7:01 PM EDTSpecial Weather StatementFFCDooly, Macon29 min
Sep 8, 7:14 PM EDTSpecial Weather StatementFFCPulaski31 min
Sep 8, 7:30 PM EDTSpecial Weather StatementFFCDooly, Macon, Sumter45 min
Sep 8, 7:54 PM EDTSpecial Weather StatementFFCSchley36 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.