Alert archive / Georgia / Tornado Warnings in 2011
Tornado Warning 31, NWS Atlanta, GA
NWS Atlanta, GA issued this tornado warning at Apr 27, 2011, 5:51 PM EDT for Catoosa County, Georgia. It was in force for 24 min. 1 report 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 27, 2011, 5:51 PM EDT (21:51 UTC)
- Expired
- Apr 27, 2011, 6:15 PM EDT
- In force
- 24 min
- Issued by
- NWS Atlanta, GA
- Area
- Storm-based polygon
County Catoosa County, GA
The radar
The Northeast Alabama radar (KHTX), 90 km from the middle of the area, began a volume at 21:53 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 27, 5:58 PM EDT | TSTM WND DMG | 2 Nne Fort Oglethorpe, GA | CATOOSA COUNTY EMERGENCY MANGEMENT RELAYED REPORTS OF A COUPLE OF DOWNED TREES AND SHINGLES BLOWN OFF ROOFS IN THE ROSSVILLE SECTION OF NW CATOOSA COUNTY. |
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 27, 2:42 PM EDT | Tornado Watch | SPC | 8 hr |
The nearest sounding before it
Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 9.9 hours before the alert went out and 185 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
- 748 J/kg
- Mixed-layer CIN
- -41 J/kg
- Mixed-layer LCL
- 501 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- 345 m²/s²
- 0-3 km storm-relative helicity
- 460 m²/s²
- Significant tornado parameter
- 1.5
- Supercell composite
- 5.4
The text
As transmitted, in the capitals the NWS used until 2016.
820 WFUS52 KFFC 272151 TORFFC GAC047-272215- /O.NEW.KFFC.TO.W.0031.110427T2151Z-110427T2215Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE PEACHTREE CITY GA 551 PM EDT WED APR 27 2011 THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A * TORNADO WARNING FOR... NORTHERN CATOOSA COUNTY IN NORTHWEST GEORGIA * UNTIL 615 PM EDT * AT 548 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 12 MILES WEST OF BOYNTON...MOVING NORTHEAST AT 50 MPH. * OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO INDIAN SPRINGS...GRAYSVILLE AND SALEM. PRECAUTIONARY/PREPAREDNESS ACTIONS... THIS IS AN EXTREMELY DANGEROUS AND LIFE THREATENING SITUATION. THIS STORM IS CAPABLE OF PRODUCING STRONG TO VIOLENT TORNADOES. IF YOU ARE IN THE PATH OF THIS TORNADO...TAKE COVER IMMEDIATELY! 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 1100 PM EDT WEDNESDAY EVENING FOR NORTHWEST GEORGIA. && LAT...LON 3499 8498 3497 8498 3488 8526 3499 8526 TIME...MOT...LOC 2151Z 246DEG 42KT 3492 8536 $$
2 follow-up statements
821 WWUS52 KFFC 272156 SVSFFC SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE PEACHTREE CITY GA 556 PM EDT WED APR 27 2011 GAC047-272215- /O.CON.KFFC.TO.W.0031.000000T0000Z-110427T2215Z/ CATOOSA GA- 556 PM EDT WED APR 27 2011 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 615 PM EDT FOR NORTHERN CATOOSA COUNTY... AT 553 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A TORNADO. THIS TORNADO WAS LOCATED WEST OF FORT OGLETHORPE... NEAR CHATTANOOGA VALLEY...MOVING NORTHEAST AT 50 MPH. THIS STORM HAS A HISTORY OF PRODUCING LARGE DAMAGING TORNADOES. TAKE COVER NOW! OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO LAKEVIEW...BOYNTON...INDIAN SPRINGS...GRAYSVILLE AND SALEM. PRECAUTIONARY/PREPAREDNESS ACTIONS... THIS IS AN EXTREMELY DANGEROUS AND LIFE THREATENING SITUATION. THIS STORM IS CAPABLE OF PRODUCING STRONG TO VIOLENT TORNADOES. IF YOU ARE IN THE PATH OF THIS TORNADO...TAKE COVER IMMEDIATELY! IF YOU SEE WIND DAMAGE...LARGE HAIL OR SIGNIFICANT FLOODING...WAIT UNTIL AFTER THE STORM HAS PASSED...AND THEN CALL THE NATIONAL WEATHER SERVICE TOLL FREE AT 1 8 6 6 7 6 3 4 4 6 6. A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM EDT WEDNESDAY EVENING FOR NORTHWEST GEORGIA. && LAT...LON 3499 8498 3497 8498 3488 8526 3499 8526 TIME...MOT...LOC 2156Z 246DEG 42KT 3494 8530 $$
456 WWUS52 KFFC 272215 SVSFFC SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE PEACHTREE CITY GA 615 PM EDT WED APR 27 2011 GAC047-272215- /O.CON.KFFC.TO.W.0031.000000T0000Z-110427T2215Z/ CATOOSA GA- 615 PM EDT WED APR 27 2011 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 615 PM EDT FOR NORTHERN CATOOSA COUNTY... AT 607 PM EDT...THE STORM RESPONSIBLE FOR THE TORNADO WARNING HAD LIFTED NORTH OF THE AREA BUT A NEW STORM SHOWS SOME POTENTIAL FOR TORNADO DEVELOPMENT. ALTHOUGH THE WARNING WILL BE ALLOWED TO EXPIRE...CONDITIONS WILL BE MONITORED FOR A NEW WARNING AND A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR THE AREA THROUGH 630 PM. OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO SALEM. 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 1100 PM EDT WEDNESDAY EVENING FOR NORTHWEST GEORGIA. && LAT...LON 3499 8498 3497 8498 3488 8526 3499 8526 TIME...MOT...LOC 2212Z 246DEG 42KT 3502 8509 $$
The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 27, 8:04 AM EDT | Severe Thunderstorm Warning | FFC | Bartow, Chattooga, Floyd, Haralson, Polk | 56 min |
| Apr 27, 8:16 AM EDT | Tornado Warning | FFC | Catoosa, Chattooga, Dade, Walker, Whitfield | 44 min |
| Apr 27, 8:25 AM EDT | Tornado Warning | FFC | Dade, Walker | 35 min |
| Apr 27, 8:28 AM EDT | Severe Thunderstorm Warning | FFC | Carroll, Haralson, Heard | 32 min |
| Apr 27, 8:35 AM EDT | Severe Thunderstorm Warning | FFC | Bartow, Cherokee, Cobb, Gilmer, Gordon, Murray and 5 more | 55 min |
| Apr 27, 8:42 AM EDT | Severe Thunderstorm Warning | FFC | Catoosa, Murray, Whitfield | 48 min |
| Apr 27, 8:51 AM EDT | Severe Thunderstorm Warning | FFC | Clayton, Coweta, Douglas, Fayette, Fulton | 29 min |
| Apr 27, 8:54 AM EDT | Tornado Warning | FFC | Gilmer, Gordon, Murray, Whitfield | 51 min |
| Apr 27, 9:02 AM EDT | Severe Thunderstorm Warning | FFC | Catoosa, Dade, Walker | 16 min |
| Apr 27, 9:26 AM EDT | Severe Thunderstorm Warning | FFC | Fannin, Gilmer, Murray | 39 min |
| Apr 27, 1:59 PM EDT | Severe Thunderstorm Warning | FFC | Dade, Walker | 61 min |
| Apr 27, 2:25 PM EDT | Tornado Warning | FFC | Dade, Walker | 34 min |
| Apr 27, 2:37 PM EDT | Severe Thunderstorm Warning | FFC | Catoosa, Whitfield | 25 min |
| Apr 27, 5:07 PM EDT | Severe Thunderstorm Warning | FFC | Dade, Walker | 38 min |
| Apr 27, 5:14 PM EDT | Tornado Warning | FFC | Dade, Walker | 46 min |
| Apr 27, 5:53 PM EDT | River Flood Warning | FFC | Dade | 11 hr |
| Apr 27, 6:03 PM EDT | Severe Thunderstorm Warning | FFC | Catoosa, Walker | 27 min |
| Apr 27, 6:15 PM EDT | Severe Thunderstorm Warning | FFC | Dade | 30 min |
| Apr 27, 7:20 PM EDT | Severe Thunderstorm Warning | FFC | Chattooga, Dade, Walker | 55 min |
| Apr 27, 7:32 PM EDT | Tornado Warning | FFC | Chattooga, Dade, Walker | 43 min |
| Apr 27, 7:59 PM EDT | Tornado Warning | FFC | Catoosa, Walker, Whitfield | 46 min |
Nearby
Tornado Warnings in Georgia, 2011Every tornado warning in 2011Tornadoes 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.