Alert archive / Georgia / Severe Thunderstorm Warnings in 2017
Severe Thunderstorm Warning 159, NWS Atlanta, GA
NWS Atlanta, GA issued this severe thunderstorm warning at Apr 18, 2017, 3:00 PM EDT for DeKalb County, Gwinnett County, Georgia. It was in force for 33 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 18, 2017, 3:00 PM EDT (19:00 UTC)
- Expired
- Apr 18, 2017, 3:33 PM EDT
- In force
- 33 min
- Issued by
- NWS Atlanta, GA
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties DeKalb County, GA, Gwinnett County, GA
The radar
The Atlanta radar (KFFC), 72 km from the middle of the area, began a volume at 19:00 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 18, 3:05 PM EDT | HAIL 1 | Embry Hills, GA | THE PUBLIC REPORTED QUARTER SIZED HAIL NEAR THE INTERSECTION OF STONECREST COURT AND CHAMBLEE TUCKER ROAD. |
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, 7.0 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
- 96 J/kg
- Mixed-layer CIN
- -79 J/kg
- Mixed-layer LCL
- 1036 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- 42 m²/s²
- 0-3 km storm-relative helicity
- 19 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
482
WUUS52 KFFC 181900
SVRFFC
GAC089-135-181945-
/O.NEW.KFFC.SV.W.0159.170418T1900Z-170418T1945Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Peachtree City GA
300 PM EDT TUE APR 18 2017
The National Weather Service in Peachtree City has issued a
* Severe Thunderstorm Warning for...
Northern DeKalb County in north central Georgia...
Southwestern Gwinnett County in north central Georgia...
* Until 345 PM EDT
* At 259 PM EDT, a severe thunderstorm was located over Tucker,
moving east at 5 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.
* Locations impacted include...
Sandy Springs, Dunwoody, Duluth, Lilburn, Chamblee, Norcross,
Doraville, Clarkston, Stone Mountain, Berkeley Lake, Pine Lake,
Tucker, North Decatur, North Atlanta, Mountain Park, Scottdale and
Mechanicsville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Large hail and damaging winds and continuous cloud-to-ground
lightning is occurring with this storm. Move indoors immediately.
Lightning is one of nature's leading killers. Remember, if you can
hear thunder, you are close enough to be struck by lightning.
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 3391 8409 3377 8409 3379 8430 3395 8433
3396 8430 3396 8428 3397 8426 3398 8426
3400 8421 3399 8420 3399 8419 3402 8417
TIME...MOT...LOC 1859Z 261DEG 7KT 3387 8424
HAIL...1.00IN
WIND...60MPH
$$1 follow-up statement
563
WWUS52 KFFC 181933
SVSFFC
Severe Weather Statement
National Weather Service Peachtree City GA
333 PM EDT TUE APR 18 2017
GAC089-135-181940-
/O.CAN.KFFC.SV.W.0159.000000T0000Z-170418T1945Z/
DeKalb GA-Gwinnett GA-
333 PM EDT TUE APR 18 2017
...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN DEKALB AND
SOUTHWESTERN GWINNETT COUNTIES IS CANCELLED...
The storm which prompted the warning has weakened below severe
limits and no longer poses an immediate threat to life or property,
and therefore, the warning has been cancelled. However small hail,
gusty winds up to 35 MPH and very heavy rain are still possible with
this thunderstorm. The thunderstorm was located from Norcross to
Tucker and was moving east around 5 MPH.
To report severe weather, contact your nearest law enforcement
agency, and they will relay your report to the National Weather
Service in Peachtree City.
LAT...LON 3391 8409 3377 8409 3379 8430 3395 8433
3396 8430 3396 8428 3397 8426 3398 8426
3400 8421 3399 8420 3399 8419 3402 8417
TIME...MOT...LOC 1928Z 261DEG 7KT 3388 8417
$$The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 17, 9:40 PM EDT | Special Weather Statement | FFC | Chattooga | 35 min |
| Apr 18, 2:45 PM EDT | Special Weather Statement | FFC | DeKalb | 45 min |
| Apr 18, 3:17 PM EDT | Special Weather Statement | FFC | Glascock, Hancock, Warren | 28 min |
| Apr 18, 3:45 PM EDT | Special Weather Statement | FFC | Fulton | 45 min |
| Apr 18, 4:15 PM EDT | Special Weather Statement | FFC | Walton | 45 min |
| Apr 18, 4:19 PM EDT | Special Weather Statement | FFC | Taliaferro, Warren | 26 min |
| Apr 18, 4:31 PM EDT | Special Weather Statement | FFC | Newton | 29 min |
| Apr 18, 4:41 PM EDT | Special Weather Statement | FFC | Taliaferro | 49 min |
| Apr 18, 4:44 PM EDT | Special Weather Statement | FFC | Bartow | 46 min |
| Apr 18, 4:58 PM EDT | Special Weather Statement | FFC | Walton | 32 min |
| Apr 18, 5:16 PM EDT | Special Weather Statement | FFC | Wilkes | 59 min |
| Apr 18, 5:28 PM EDT | Severe Thunderstorm Warning | FFC | Morgan, Newton, Walton | 47 min |
| Apr 18, 5:31 PM EDT | Special Weather Statement | FFC | Greene | 44 min |
| Apr 18, 5:37 PM EDT | Special Weather Statement | FFC | Gordon, Murray, Whitfield | 38 min |
| Apr 18, 5:48 PM EDT | Special Weather Statement | FFC | Wilkes | 42 min |
| Apr 18, 6:01 PM EDT | Special Weather Statement | FFC | Morgan | 44 min |
| Apr 18, 6:09 PM EDT | Special Weather Statement | FFC | Walker | 51 min |
| Apr 18, 6:19 PM EDT | Special Weather Statement | FFC | Murray | 26 min |
| Apr 18, 6:37 PM EDT | Special Weather Statement | FFC | Dade | 53 min |
| Apr 18, 7:08 PM EDT | Special Weather Statement | FFC | Emanuel | 52 min |
| Apr 18, 7:25 PM EDT | Special Weather Statement | FFC | Dade | 50 min |
Nearby
Severe Thunderstorm Warnings in Georgia, 2017Every severe thunderstorm warning in 2017
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.