Alert archive / Georgia / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 454, NWS Atlanta, GA
NWS Atlanta, GA issued this severe thunderstorm warning at Aug 5, 2011, 4:56 PM EDT for Dade County, Walker County, Georgia. It was in force for 49 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
- Aug 5, 2011, 4:56 PM EDT (20:56 UTC)
- Expired
- Aug 5, 2011, 5:45 PM EDT
- In force
- 49 min
- Issued by
- NWS Atlanta, GA
- Area
- Storm-based polygon
Counties Dade County, GA, Walker County, GA
The radar
The Northeast Alabama radar (KHTX), 54 km from the middle of the area, began a volume at 20:57 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
Nashville Metro, TN (KBNA), launched 12:00Z, 8.9 hours before the alert went out and 169 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
- 2607 J/kg
- Mixed-layer CIN
- -30 J/kg
- Mixed-layer LCL
- 671 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- 48 m²/s²
- 0-3 km storm-relative helicity
- 40 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
317
WUUS52 KFFC 052056
SVRFFC
GAC083-295-052145-
/O.NEW.KFFC.SV.W.0454.110805T2056Z-110805T2145Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
456 PM EDT FRI AUG 5 2011
THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
DADE COUNTY IN NORTHWEST GEORGIA
NORTHWESTERN WALKER COUNTY IN NORTHWEST GEORGIA
* UNTIL 545 PM EDT
* AT 452 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS UP TO 60
MPH. THIS STORM WAS LOCATED 10 MILES NORTH OF TRENTON...MOVING
SOUTH AT 25 MPH.
* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO COLE
CITY...WILDWOOD...MORGANVILLE...CHATTANOOGA VALLEY...NEW ENGLAND...
STEPHENSVILLE...CLOUDLAND CANYON STATE PARK...COOPER HEIGHTS...
RISING FAWN AND CEDAR GROVE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IF YOU SEE WIND DAMAGE...LARGE HAIL OR SIGNIFICANT FLOODING...WAIT
UNTIL THE STORM HAS PASSED...AND THEN CALL THE NATIONAL WEATHER
SERVICE TOLL FREE AT 1 8 6 6 7 6 3 4 4 6 6.
&&
LAT...LON 3498 8533 3471 8540 3472 8556 3495 8561
3498 8561 3499 8560
TIME...MOT...LOC 2056Z 004DEG 22KT 3499 8558
$$The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 5, 4:49 PM EDT | Special Weather Statement | FFC | Banks | 41 min |
| Aug 5, 5:28 PM EDT | Special Weather Statement | FFC | Madison, Oglethorpe | 32 min |
| Aug 5, 5:50 PM EDT | Special Weather Statement | FFC | Walker | 25 min |
| Aug 5, 6:02 PM EDT | Special Weather Statement | FFC | Madison, Oglethorpe, Wilkes | 43 min |
| Aug 5, 6:17 PM EDT | Severe Thunderstorm Warning | FFC | Madison | 28 min |
| Aug 5, 6:32 PM EDT | Flash Flood Warning | FFC | Madison | 2 hr |
| Aug 5, 7:33 PM EDT | Special Weather Statement | FFC | Oconee, Walton | 27 min |
Nearby
Severe Thunderstorm Warnings in Georgia, 2011Every severe thunderstorm warning in 2011
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.