Alert archive / Georgia / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 146, NWS Atlanta, GA
NWS Atlanta, GA issued this severe thunderstorm warning at Apr 11, 2011, 9:21 PM EDT for 8 counties in Georgia. It was in force for 54 min. 7 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 11, 2011, 9:21 PM EDT (01:21 UTC)
- Expired
- Apr 11, 2011, 10:15 PM EDT
- In force
- 54 min
- Issued by
- NWS Atlanta, GA
- Area
- Storm-based polygon
Counties Bartow County, GA, Chattooga County, GA, Floyd County, GA, Gordon County, GA, Murray County, GA, Polk County, GA, Walker County, GA, Whitfield County, GA
The radar
The Northeast Alabama radar (KHTX), 104 km from the middle of the area, began a volume at 01:24 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
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 11, 9:22 PM EDT | TSTM WND DMG | Cloudland, GA | THE PUBLIC REPORTED A TREE ON A CAR IN CLOUDLAND. |
| Apr 11, 9:26 PM EDT | TSTM WND DMG | Summerville, GA | CHATTOOGA COUNTY 911 RELAYED A REPORT MANY TREES DOWN ACROSS THE ENTIRE COUNTY. |
| Apr 11, 9:29 PM EDT | TSTM WND DMG | Lafayette, GA | WALKER COUNTY 911 RELAYED A REPORT OF NUMEROUS TREES DOWN COUNTYWIDE. |
| Apr 11, 9:34 PM EDT | HAIL 0.75 | Trion, GA | THE PUBLIC REPORTED DIME SIZE HAIL IN TRION ALONG WITH POWER OUTAGES. |
| Apr 11, 9:48 PM EDT | TSTM WND DMG | Rocky Face, GA | WHITFIELD COUNTY 911 RELAYED A REPORT OF TWO TREES DOWN IN THE ROCKY FACE AREA. |
| Apr 11, 10:02 PM EDT | TSTM WND DMG | Lindale, GA | FLOYD COUNTY EMA RELAYED A REPORT OF A TREE DOWN ON A HOUSE IN LINDALE. |
| Apr 11, 10:11 PM EDT | TSTM WND DMG | Adairsville, GA | BARTOW COUNTY 911 RELAYED A REPORT OF THREE TREES DOWN IN THE ADAIRSVILLE AREA. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Apr 11, 8:08 PM EDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 1.4 hours before the alert went out and 140 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
- 9 J/kg
- Mixed-layer CIN
- -501 J/kg
- Mixed-layer LCL
- 1916 m above ground
- 0-6 km bulk shear
- 53 kt
- 0-1 km storm-relative helicity
- 155 m²/s²
- 0-3 km storm-relative helicity
- 355 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
439
WUUS52 KFFC 120121
SVRFFC
GAC015-055-115-129-213-233-295-313-120215-
/O.NEW.KFFC.SV.W.0146.110412T0121Z-110412T0215Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
921 PM EDT MON APR 11 2011
THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
BARTOW COUNTY IN NORTHWEST GEORGIA
CHATTOOGA COUNTY IN NORTHWEST GEORGIA
FLOYD COUNTY IN NORTHWEST GEORGIA
GORDON COUNTY IN NORTHWEST GEORGIA
MURRAY COUNTY IN NORTHWEST GEORGIA
POLK COUNTY IN NORTHWEST GEORGIA
SOUTHERN WALKER COUNTY IN NORTHWEST GEORGIA
WHITFIELD COUNTY IN NORTHWEST GEORGIA
* UNTIL 1015 PM EDT
* AT 915 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZED
HAIL...AND DAMAGING WINDS UP TO 60 MPH. THESE STORMS WERE LOCATED
ALONG A LINE EXTENDING FROM 15 MILES NORTHWEST OF SUMMERVILLE TO 18
MILES NORTHWEST OF CAVE SPRING TO 32 MILES WEST OF CAVE SPRING...
MOVING NORTHEAST AT 75 MPH.
* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
TRION...LAFAYETTE...CEDARTOWN...TUNNEL HILL...DALTON...VARNELL...
RESACA...CALHOUN...PLAINVILLE...ROME...ROCKMART...ARAGON...
SHANNON...TAYLORSVILLE...CHATSWORTH...ETON...EUHARLEE...KINGSTON...
ADAIRSVILLE...CASSVILLE...CARTERSVILLE AND WHITE.
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.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 300 AM EDT TUESDAY MORNING
FOR NORTHERN GEORGIA.
&&
LAT...LON 3420 8473 3408 8490 3408 8493 3403 8496
3390 8527 3390 8539 3462 8554 3469 8549
3481 8520 3478 8520 3477 8515 3482 8513
3482 8507 3486 8506 3488 8502 3500 8473
3500 8466 3499 8465
TIME...MOT...LOC 0121Z 243DEG 65KT 3464 8546 3426 8550
3402 8576
$$1 follow-up statement
343
WWUS52 KFFC 120151
SVSFFC
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
951 PM EDT MON APR 11 2011
GAC015-055-115-129-213-233-295-313-120215-
/O.CON.KFFC.SV.W.0146.000000T0000Z-110412T0215Z/
WHITFIELD GA-WALKER GA-POLK GA-MURRAY GA-BARTOW GA-CHATTOOGA GA-
FLOYD GA-GORDON GA-
951 PM EDT MON APR 11 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1015 PM EDT
FOR GORDON...FLOYD...CHATTOOGA...BARTOW...MURRAY...POLK...
SOUTHEASTERN WALKER AND WHITFIELD COUNTIES...
AT 948 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZED
HAIL...AND DESTRUCTIVE WINDS UP TO 70 MPH. THE MOST DANGEROUS PART
OF THIS STORM WAS LOCATED NEAR 2 MILES SOUTHWEST OF DALTON...MOVING
NORTHEAST AT 50 MPH.
OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
NICKELSVILLE...DALTON...REDBUD...AUDUBON...NORTH GEORGIA SPEEDWAY...
RANGER...DAWNVILLE...OAKMAN...CARTERS...RAMHURST...CHATSWORTH...
BEAVERDALE...ETON...SUMAC...FORT MOUNTAIN STATE PARK...CRANDALL...
GREGORY...CISCO AND TENNGA.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
DOPPLER RADAR HAS INDICATED ROTATION WITHIN THIS STORM. ALTHOUGH
CURRENT DATA DOES NOT INDICATE THE EXISTENCE OF A TORNADO...A TORNADO
MAY STILL DEVELOP. IF A TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO
A PLACE OF SAFETY INSIDE A STURDY STRUCTURE...SUCH AS A BASEMENT OR
SMALL INTERIOR ROOM.
IF YOU SEE WIND DAMAGE...LARGE HAIL OR SIGNIFICANT FLOODING...WAIT
UNTIL AFTER THE STORM HAS PASSED...AND THEN CALL THE NATIONAL WEATHER
SERVICE TOLL FREE AT 1 8 6 6 7 6 3 4 4 6 6.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 300 AM EDT TUESDAY MORNING
FOR NORTHERN GEORGIA.
&&
LAT...LON 3420 8473 3408 8493 3403 8496 3390 8527
3390 8539 3441 8549 3471 8521 3478 8520
3477 8515 3482 8513 3482 8506 3486 8506
3500 8473 3500 8466
TIME...MOT...LOC 0150Z 243DEG 65KT 3474 8498
$$The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 11, 8:38 PM EDT | Severe Thunderstorm Warning | FFC | Catoosa, Chattooga, Dade, Walker | 52 min |
| Apr 11, 10:01 PM EDT | Severe Thunderstorm Warning | FFC | Carroll, Cobb, Douglas, Haralson, Paulding, Polk | 44 min |
| Apr 11, 10:11 PM EDT | Severe Thunderstorm Warning | FFC | Bartow, Cherokee, Fannin, Gilmer, Gordon, Murray and 2 more | 34 min |
| Apr 11, 10:40 PM EDT | Severe Thunderstorm Warning | FFC | Bartow, Cherokee, Dawson, Fannin, Gilmer, Lumpkin and 2 more | 65 min |
| Apr 11, 10:44 PM EDT | Severe Thunderstorm Warning | FFC | Bartow, Carroll, Cherokee, Cobb, Coweta, Douglas and 4 more | 48 min |
| Apr 11, 11:42 PM EDT | Severe Thunderstorm Warning | FFC | Chattahoochee, Harris, Meriwether, Muscogee, Talbot, Troup | 48 min |
| Apr 12, 4:28 AM EDT | Wind Advisory | FFC | Baldwin, Banks, Barrow, Bartow, Bibb, Butts and 73 more | 16 hr |
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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.