Alert archive / Georgia / Severe Thunderstorm Warnings in 2015
Severe Thunderstorm Warning 70, NWS Atlanta, GA
NWS Atlanta, GA issued this severe thunderstorm warning at May 18, 2015, 4:21 PM EDT for Cobb County, Georgia. It was in force for 24 min. 2 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
- May 18, 2015, 4:21 PM EDT (20:21 UTC)
- Expired
- May 18, 2015, 4:45 PM EDT
- In force
- 24 min
- Issued by
- NWS Atlanta, GA
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
County Cobb County, GA
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 18, 4:27 PM EDT | HAIL 1 | Marietta, GA | THIS REPORT WAS RELAYED BY WSB-TV. |
| May 18, 4:35 PM EDT | HAIL 0.75 | Marietta, GA | MINOR LEAF DAMAGE OCCURED AS THE HAIL FELL. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 8.4 hours before the alert went out and 69 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
- 133 J/kg
- Mixed-layer CIN
- -105 J/kg
- Mixed-layer LCL
- 1120 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 55 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.
176
WUUS52 KFFC 182021
SVRFFC
GAC067-182045-
/O.NEW.KFFC.SV.W.0070.150518T2021Z-150518T2045Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
421 PM EDT MON MAY 18 2015
THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTHERN COBB COUNTY IN NORTH CENTRAL GEORGIA...
* UNTIL 445 PM EDT
* AT 421 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED OVER MARIETTA...
MOVING EAST AT 25 MPH.
HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL.
SOURCE...RADAR INDICATED.
IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE
TO ROOFS...SIDING AND TREES.
* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
MARIETTA...SMYRNA...KENNESAW...ACWORTH...FAIR OAKS...DOBBINS AIR
RESERVE BASE...WHITE WATER PARK...MOUNT BETHEL...KENNESAW STATE
UNIVERSITY...JIM R MILLER PARK...SWEAT MOUNTAIN...SANDY PLAINS AND
VININGS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.
IF YOU SEE WIND DAMAGE...HAIL OR 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 OR TWEET US YOUR REPORT AT NWSATLANTA.
&&
LAT...LON 3403 8468 3408 8454 3407 8442 3405 8442
3402 8440 3401 8440 3399 8438 3398 8438
3396 8439 3391 8445 3388 8444 3384 8462
TIME...MOT...LOC 2021Z 249DEG 23KT 3395 8456
HAIL...1.00IN
WIND...60MPH
$$1 follow-up statement
507
WWUS52 KFFC 182035
SVSFFC
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
435 PM EDT MON MAY 18 2015
GAC067-182045-
/O.CON.KFFC.SV.W.0070.000000T0000Z-150518T2045Z/
COBB GA-
435 PM EDT MON MAY 18 2015
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 PM EDT
FOR NORTHERN COBB COUNTY...
AT 434 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR DOBBINS
AIR RESERVE BASE... MOVING EAST AT 25 MPH.
HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL.
SOURCE...RADAR INDICATED.
IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE TO
ROOFS...SIDING AND TREES.
OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
MARIETTA...SMYRNA...KENNESAW...ACWORTH...FAIR OAKS...DOBBINS AIR
RESERVE BASE...WHITE WATER PARK...MOUNT BETHEL...KENNESAW STATE
UNIVERSITY...JIM R MILLER PARK...SWEAT MOUNTAIN...SANDY PLAINS AND
VININGS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.
IF YOU SEE WIND DAMAGE...HAIL OR FLOODING...WAIT UNTIL THE STORM HAS
PASSED...AND THEN CALL THE NATIONAL WEATHER SERVICE TOLL FREE AT 1 8
6 6 7 6 3 4 4 6 6 OR TWEET US YOUR REPORT AT NWSATLANTA.
&&
LAT...LON 3403 8468 3408 8454 3407 8442 3405 8442
3402 8440 3401 8440 3399 8438 3398 8438
3396 8439 3391 8445 3388 8444 3384 8462
TIME...MOT...LOC 2034Z 249DEG 23KT 3398 8446
HAIL...1.00IN
WIND...60MPH
$$The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 18, 12:57 PM EDT | Special Weather Statement | FFC | Clayton, Cobb, DeKalb, Fulton | 33 min |
| May 18, 1:50 PM EDT | Special Weather Statement | FFC | Spalding | 25 min |
| May 18, 2:01 PM EDT | Special Weather Statement | FFC | DeKalb, Rockdale | 29 min |
| May 18, 2:28 PM EDT | Special Weather Statement | FFC | Jones | 32 min |
| May 18, 2:46 PM EDT | Special Weather Statement | FFC | Morgan, Walton | 29 min |
| May 18, 2:55 PM EDT | Special Weather Statement | FFC | Jasper, Newton, Putnam | 35 min |
| May 18, 3:12 PM EDT | Special Weather Statement | FFC | Dade | 33 min |
| May 18, 3:27 PM EDT | Special Weather Statement | FFC | Morgan, Oconee | 33 min |
| May 18, 4:15 PM EDT | Special Weather Statement | FFC | Cobb | 30 min |
| May 18, 4:38 PM EDT | Special Weather Statement | FFC | Wilkes | 22 min |
| May 18, 4:38 PM EDT | Severe Thunderstorm Warning | FFC | Cobb, Fulton | 37 min |
| May 18, 4:59 PM EDT | Special Weather Statement | FFC | Wilcox | 46 min |
| May 18, 5:13 PM EDT | Special Weather Statement | FFC | DeKalb, Gwinnett | 32 min |
| May 18, 5:39 PM EDT | Special Weather Statement | FFC | Marion | 36 min |
| May 18, 5:40 PM EDT | Special Weather Statement | FFC | Clayton, DeKalb | 35 min |
| May 18, 5:44 PM EDT | Special Weather Statement | FFC | Wilcox | 61 min |
| May 18, 5:48 PM EDT | Special Weather Statement | FFC | Johnson | 27 min |
| May 18, 5:49 PM EDT | Special Weather Statement | FFC | Cherokee, Dawson, Fannin, Gilmer, Lumpkin | 41 min |
| May 18, 6:13 PM EDT | Special Weather Statement | FFC | Clayton, DeKalb, Fayette, Henry, Rockdale | 32 min |
| May 18, 6:24 PM EDT | Special Weather Statement | FFC | Emanuel | 51 min |
| May 18, 6:29 PM EDT | Special Weather Statement | FFC | Lumpkin, Union, White | 46 min |
| May 18, 6:42 PM EDT | Special Weather Statement | FFC | Newton, Rockdale | 33 min |
| May 18, 6:46 PM EDT | Special Weather Statement | FFC | Henry | 29 min |
| May 18, 6:51 PM EDT | Special Weather Statement | FFC | Webster | 24 min |
| May 18, 7:17 PM EDT | Special Weather Statement | FFC | Towns, White | 28 min |
| May 18, 7:18 PM EDT | Special Weather Statement | FFC | Webster | 27 min |
| May 18, 7:28 PM EDT | Special Weather Statement | FFC | Henry, Spalding | 32 min |
Nearby
Severe Thunderstorm Warnings in Georgia, 2015Every severe thunderstorm warning in 2015
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.