Alert archive / Georgia / Special Weather Statements in 2012
Special Weather Statement, NWS Atlanta, GA
NWS Atlanta, GA issued this special weather statement at Sep 18, 2012, 12:21 AM EDT for Johnson County, Laurens County, Wilkinson 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 18, 2012, 12:21 AM EDT (04:21 UTC)
- Expired
- Sep 18, 2012, 12:45 AM EDT
- In force
- 24 min
- Issued by
- NWS Atlanta, GA
Counties Johnson County, GA, Laurens County, GA, Wilkinson County, GA
The radar
The Robins AFB radar (KJGX), 34 km from the middle of the area, began a volume at 04:22 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, 4.4 hours before the alert went out and 157 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.
- Mixed-layer CAPE
- 405 J/kg
- Mixed-layer CIN
- -25 J/kg
- Mixed-layer LCL
- 706 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 220 m²/s²
- 0-3 km storm-relative helicity
- 203 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 3.2
The text
As transmitted, in the capitals the NWS used until 2016.
752
WWUS82 KFFC 180421
SPSFFC
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1221 AM EDT TUE SEP 18 2012
GAZ073-074-083>085-096-097-109-180445-
1221 AM EDT TUE SEP 18 2012
...SIGNIFICANT WEATHER ADVISORY FOR 40 MPH WINDS IN WASHINGTON...
TWIGGS...LAURENS...JOHNSON...WILKINSON...BALDWIN...BLECKLEY AND DODGE
COUNTIES UNTIL 1245 AM EDT...
AT 1217 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SHOWERS WITH STRONG WINDS FROM 5 MILES NORTH OF DANVILLE TO
CADWELL...MOVING NORTHEAST AT 35 MPH.
WIND GUSTS OF 40 MPH ARE LIKELY AS THIS ACTIVITY MOVES ACROSS
WASHINGTON...TWIGGS...LAURENS...JOHNSON...WILKINSON...BALDWIN...BLECK
LEY AND DODGE COUNTIES THROUGH 1245 AM EDT. SOME LOCATIONS IN THE
PATH OF THESE STORMS INCLUDE
RENTZ...MONTROSE...DEXTER...CADWELL...ALLENTOWN...DANVILLE...JEFFERSO
NVILLE...DUDLEY...HARLOW...NICKLESVILLE...MCINTYRE...CHAPPELLS
MILL...IRWINTON...MINTER AND EAST DUBLIN.
&&
LAT...LON 3307 8299 3298 8283 3265 8257 3222 8304
3251 8320 3269 8336
TIME...MOT...LOC 0421Z 212DEG 32KT 3271 8323 3261 8314
3238 8300
$$The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 18, 1:06 AM EDT | Special Weather Statement | FFC | Dade | 54 min |
| Sep 18, 3:27 AM EDT | River Flood Warning | FFC | Dade | 15 hr |
| Sep 18, 6:25 AM EDT | Special Weather Statement | FFC | Chattooga | 65 min |
| Sep 18, 7:18 AM EDT | Special Weather Statement | FFC | Marion, Schley, Webster | 42 min |
| Sep 18, 7:52 AM EDT | Special Weather Statement | FFC | Crawford, Macon, Peach, Schley | 38 min |
| Sep 18, 8:22 AM EDT | Special Weather Statement | FFC | Baldwin, Jones | 23 min |
| Sep 18, 11:33 AM EDT | Special Weather Statement | FFC | Coweta, Troup | 27 min |
| Sep 18, 11:57 AM EDT | Special Weather Statement | FFC | Clayton, Coweta, Fayette | 33 min |
| Sep 18, 1:29 PM EDT | Special Weather Statement | FFC | Butts, Spalding | 46 min |
| Sep 18, 2:16 PM EDT | Special Weather Statement | FFC | Monroe, Upson | 29 min |
| Sep 18, 2:46 PM EDT | Special Weather Statement | FFC | Bibb, Jones, Monroe | 29 min |
| Sep 18, 3:42 PM EDT | Special Weather Statement | FFC | Hancock, Putnam | 48 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.