Alert archive / Georgia / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 501, NWS Atlanta, GA
NWS Atlanta, GA issued this severe thunderstorm warning at Nov 16, 2011, 1:28 PM EST for Cherokee County, Forsyth County, Georgia. It was in force for 47 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
- Nov 16, 2011, 1:28 PM EST (18:28 UTC)
- Expired
- Nov 16, 2011, 2:15 PM EST
- In force
- 47 min
- Issued by
- NWS Atlanta, GA
- Area
- Storm-based polygon
Counties Cherokee County, GA, Forsyth County, GA
The radar
The Atlanta radar (KFFC), 105 km from the middle of the area, began a volume at 18:32 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Nov 16, 10:46 AM EST | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 6.5 hours before the alert went out and 102 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
- 627 J/kg
- Mixed-layer CIN
- -1 J/kg
- Mixed-layer LCL
- 484 m above ground
- 0-6 km bulk shear
- 61 kt
- 0-1 km storm-relative helicity
- 108 m²/s²
- 0-3 km storm-relative helicity
- 101 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 2.1
The text
As transmitted, in the capitals the NWS used until 2016.
696
WUUS52 KFFC 161828
SVRFFC
GAC057-117-161915-
/O.NEW.KFFC.SV.W.0501.111116T1828Z-111116T1915Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
128 PM EST WED NOV 16 2011
THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
EAST CENTRAL CHEROKEE COUNTY IN NORTH CENTRAL GEORGIA
FORSYTH COUNTY IN NORTH CENTRAL GEORGIA
* UNTIL 215 PM EST
* AT 127 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS UP TO 60
MPH. THIS STORM WAS LOCATED 12 MILES SOUTHWEST OF FREE HOME...
MOVING NORTHEAST AT 40 MPH.
* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
CUMMING.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. IF A TORNADO
IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY INSIDE A
STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.
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.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 700 PM EST WEDNESDAY EVENING
FOR NORTHERN GEORGIA.
&&
LAT...LON 3430 8393 3423 8397 3422 8396 3419 8399
3419 8405 3412 8410 3409 8420 3411 8426
3418 8426 3419 8431 3427 8434 3434 8407
3433 8396
TIME...MOT...LOC 1828Z 245DEG 34KT 3410 8439
$$1 follow-up statement
438
WWUS52 KFFC 161849
SVSFFC
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
149 PM EST WED NOV 16 2011
GAC057-161859-
/O.CAN.KFFC.SV.W.0501.000000T0000Z-111116T1915Z/
CHEROKEE GA-
149 PM EST WED NOV 16 2011
...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL CHEROKEE COUNTY
IS CANCELLED...
THE STORM THAT PROMPTED THE WARNING HAS EXITED CHEROKEE COUNTY.
IF YOU SEE WIND DAMAGE...LARGE HAIL OR SIGNIFICANT FLOODING...WAIT
UNTIL AFTER THE STORM HAS PASSED...AND THEN CALL THE NATIONAL WEATHER
SERVICE TOLL FREE AT 1 8 6 6 7 6 3 4 4 6 6.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM EST WEDNESDAY EVENING
FOR GEORGIA. A TORNADO WATCH ALSO REMAINS IN EFFECT UNTIL 700 PM EST
WEDNESDAY EVENING FOR NORTHERN GEORGIA.
LAT...LON 3433 8396 3430 8393 3423 8397 3422 8396
3419 8399 3420 8403 3418 8406 3412 8410
3413 8418 3414 8421 3418 8423 3434 8407
TIME...MOT...LOC 1849Z 245DEG 34KT 3418 8417
$$
GAC117-161915-
/O.CON.KFFC.SV.W.0501.000000T0000Z-111116T1915Z/
FORSYTH GA-
149 PM EST WED NOV 16 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 215 PM EST
FOR FORSYTH COUNTY...
AT 146 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS UP
TO 60 MPH. THIS STORM WAS LOCATED NEAR CUMMING...MOVING NORTHEAST AT
40 MPH.
OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO COAL
MOUNTAIN...OSCARVILLE AND CHESTATEE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IF YOU SEE WIND DAMAGE...LARGE HAIL OR SIGNIFICANT FLOODING...WAIT
UNTIL AFTER 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.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM EST WEDNESDAY EVENING
FOR GEORGIA. A TORNADO WATCH ALSO REMAINS IN EFFECT UNTIL 700 PM EST
WEDNESDAY EVENING FOR NORTHERN GEORGIA.
&&
LAT...LON 3433 8396 3430 8393 3423 8397 3422 8396
3419 8399 3420 8403 3418 8406 3412 8410
3413 8418 3414 8421 3418 8423 3434 8407
TIME...MOT...LOC 1849Z 245DEG 34KT 3418 8417
$$The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 16, 11:23 AM EST | Special Weather Statement | FFC | Dade | 67 min |
| Nov 16, 12:04 PM EST | Special Weather Statement | FFC | Floyd, Polk | 41 min |
| Nov 16, 12:22 PM EST | Special Weather Statement | FFC | Carroll, Douglas | 38 min |
| Nov 16, 12:46 PM EST | Tornado Warning | FFC | Cobb, Paulding | 29 min |
| Nov 16, 1:06 PM EST | Tornado Warning | FFC | Cherokee, Cobb, Fulton | 39 min |
| Nov 16, 1:11 PM EST | Tornado Warning | FFC | Harris, Troup | 49 min |
| Nov 16, 1:25 PM EST | Severe Thunderstorm Warning | FFC | Cobb, DeKalb, Fulton | 35 min |
| Nov 16, 1:42 PM EST | Special Weather Statement | FFC | Fannin, Murray | 48 min |
| Nov 16, 1:44 PM EST | Tornado Warning | FFC | DeKalb, Fulton, Gwinnett | 26 min |
| Nov 16, 1:52 PM EST | Tornado Warning | FFC | Harris, Meriwether, Talbot, Upson | 38 min |
| Nov 16, 1:59 PM EST | Severe Thunderstorm Warning | FFC | Fannin, Union | 31 min |
| Nov 16, 2:04 PM EST | Special Weather Statement | FFC | Hall | 26 min |
| Nov 16, 2:13 PM EST | Special Weather Statement | FFC | Chattahoochee, Marion, Muscogee | 47 min |
| Nov 16, 2:24 PM EST | Tornado Warning | FFC | Lamar, Meriwether, Pike, Talbot, Upson | 36 min |
| Nov 16, 2:37 PM EST | Special Weather Statement | FFC | Murray | 53 min |
| Nov 16, 2:41 PM EST | Severe Thunderstorm Warning | FFC | Chattahoochee, Marion | 24 min |
| Nov 16, 2:56 PM EST | Special Weather Statement | FFC | Jasper, Lamar, Monroe | 34 min |
| Nov 16, 3:00 PM EST | Special Weather Statement | FFC | Stewart, Webster | 45 min |
| Nov 16, 3:08 PM EST | Tornado Warning | FFC | Jasper, Jones, Monroe, Putnam | 39 min |
| Nov 16, 3:20 PM EST | Severe Thunderstorm Warning | FFC | Bibb, Twiggs, Wilkinson | 40 min |
| Nov 16, 3:32 PM EST | Severe Thunderstorm Warning | FFC | Glascock, Jefferson, Washington | 58 min |
| Nov 16, 3:38 PM EST | Special Weather Statement | FFC | Macon, Marion, Schley, Sumter, Webster | 37 min |
| Nov 16, 3:44 PM EST | Special Weather Statement | FFC | Hancock, Putnam | 46 min |
| Nov 16, 3:44 PM EST | Tornado Warning | FFC | Glascock, Jefferson, Washington | 46 min |
| Nov 16, 3:54 PM EST | Severe Thunderstorm Warning | FFC | Bleckley, Houston, Twiggs | 36 min |
| Nov 16, 4:03 PM EST | Severe Thunderstorm Warning | FFC | Baldwin, Washington, Wilkinson | 42 min |
| Nov 16, 4:13 PM EST | Special Weather Statement | FFC | Macon, Schley, Sumter, Taylor | 32 min |
| Nov 16, 4:17 PM EST | Severe Thunderstorm Warning | FFC | Laurens, Wilkinson | 43 min |
| Nov 16, 4:21 PM EST | Special Weather Statement | FFC | Dooly | 39 min |
| Nov 16, 4:23 PM EST | Tornado Warning | FFC | Jefferson, Washington | 37 min |
| Nov 16, 4:50 PM EST | Tornado Warning | FFC | Johnson, Laurens | 40 min |
| Nov 16, 5:00 PM EST | Special Weather Statement | FFC | Crisp | 30 min |
| Nov 16, 5:00 PM EST | Tornado Warning | FFC | Jefferson | 45 min |
| Nov 16, 5:06 PM EST | Tornado Warning | FFC | Jefferson | 39 min |
| Nov 16, 5:21 PM EST | Special Weather Statement | FFC | Crisp, Pulaski, Wilcox | 24 min |
| Nov 16, 5:27 PM EST | Tornado Warning | FFC | Emanuel | 48 min |
| Nov 16, 5:41 PM EST | Special Weather Statement | FFC | Dodge, Pulaski, Wilcox | 49 min |
| Nov 16, 5:54 PM EST | Severe Thunderstorm Warning | FFC | Dodge, Telfair, Wilcox | 51 min |
| Nov 16, 6:40 PM EST | Severe Thunderstorm Warning | FFC | Telfair, Wheeler | 37 min |
| Nov 16, 6:51 PM EST | Tornado Warning | FFC | Montgomery, Telfair, Wheeler | 39 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.