Alert archive / Georgia / Special Weather Statements in 2012

Special Weather Statement, NWS Atlanta, GA

April 5, 2012Whitfield County, Georgia

NWS Atlanta, GA issued this special weather statement at Apr 5, 2012, 8:37 PM EDT for Whitfield County, Georgia. It was in force for 38 min. 2 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Apr 5, 2012, 8:37 PM EDT (00:37 UTC)
Expired
Apr 5, 2012, 9:15 PM EDT
In force
38 min
Issued by
NWS Atlanta, GA

County Whitfield County, GA

The radar

The Northeast Alabama radar (KHTX), 110 km from the middle of the area, began a volume at 00:39 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.

What was reported inside it

TimeReportWhereRemark
Apr 5, 8:45 PM EDTHAIL 0.755 Ene Cohutta, GAPENNY SIZE HAIL WAS REPORTED AT KEITH VALLEY AND EAST EMERSON ROADS.
Apr 5, 9:00 PM EDTHAIL 0.75Varnell, GAPENNY SIZE HAIL WAS REPORTED ALONG HIGHWAY 2 AND LONDON VILLAGE.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 0.6 hours before the alert went out and 172 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 2012-04-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2012-04-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 85 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1821 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
85 m²/s²
0-3 km storm-relative helicity
72 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.

907 
WWUS82 KFFC 060037
SPSFFC

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
837 PM EDT THU APR 5 2012

GAZ003>005-060115-
837 PM EDT THU APR 5 2012

...SIGNIFICANT WEATHER ADVISORY FOR DIME SIZED HAIL IN WHITFIELD...
MURRAY AND CATOOSA COUNTIES UNTIL 915 PM EDT...

AT 835 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM OVER TUNNEL HILL...MOVING EAST AT 10 MPH.

THIS STORM HAS THE POTENTIAL TO PRODUCE DIME SIZED HAIL AND FREQUENT 
CLOUD TO GROUND LIGHTNING AS IT MOVES ACROSS WHITFIELD...MURRAY AND 
CATOOSA COUNTIES THROUGH 915 PM EDT. SOME LOCATIONS IN THE PATH OF 
THIS STORM INCLUDE ROCKY FACE...TUNNEL 
HILL...RINGGOLD...VARNELL...COHUTTA...DAWNVILLE AND BEAVERDALE. HEAVY
DOWNPOURS WILL CAUSE PONDING OF WATER ON ROADWAYS.

&&

LAT...LON 3497 8482 3493 8484 3487 8482 3484 8485
      3483 8485 3481 8486 3480 8484 3479 8486
      3480 8507 3494 8513 3500 8490 3499 8482
TIME...MOT...LOC 0037Z 261DEG 9KT 3487 8504

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 5, 8:00 PM EDTSpecial Weather StatementFFCCatoosa45 min
Apr 5, 8:13 PM EDTSpecial Weather StatementFFCWalker47 min
Apr 5, 8:54 PM EDTSpecial Weather StatementFFCChattooga51 min
Apr 5, 8:57 PM EDTSpecial Weather StatementFFCMurray48 min
Apr 5, 9:18 PM EDTSpecial Weather StatementFFCWalker, Whitfield42 min
Apr 5, 9:46 PM EDTSpecial Weather StatementFFCFloyd44 min
Apr 5, 9:48 PM EDTSpecial Weather StatementFFCGordon42 min
Apr 5, 10:03 PM EDTSpecial Weather StatementFFCChattooga42 min
Apr 5, 10:05 PM EDTSevere Thunderstorm WarningFFCBartow, Floyd40 min
Apr 5, 10:44 PM EDTSpecial Weather StatementFFCChattahoochee, Muscogee31 min
Apr 5, 10:52 PM EDTSpecial Weather StatementFFCTowns23 min
Apr 5, 11:00 PM EDTSpecial Weather StatementFFCGordon45 min
Apr 5, 11:15 PM EDTSpecial Weather StatementFFCBartow30 min
Apr 5, 11:18 PM EDTSpecial Weather StatementFFCDawson27 min
Apr 5, 11:42 PM EDTSpecial Weather StatementFFCHall, Jackson48 min
Apr 6, 12:31 AM EDTSpecial Weather StatementFFCHall29 min
Apr 6, 12:57 AM EDTSpecial Weather StatementFFCHall33 min

Nearby

Special Weather Statements in Georgia, 2012Every special weather statement in 2012

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.