Alert archive / Georgia / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 42, NWS Atlanta, GA

April 23, 2018Emanuel County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Apr 23, 2018, 6:15 PM EDT for Emanuel County, Georgia. It was in force for 45 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 23, 2018, 6:15 PM EDT (22:15 UTC)
Expired: Apr 23, 2018, 7:00 PM EDT
In force: 45 min
Issued by: NWS Atlanta, GA
Area: Storm-based polygon
Tornado: Possible
Hail: 0.88 in
Wind: 60.0 mph

County Emanuel County, GA

The radar

The Charleston,SC radar (KCLX), 101 km from the middle of the area, began a volume at 22:16 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 23, 6:48 PM EDT	TSTM WND DMG	2 E Canoochee, GA	A TREE WAS REPORTED DOWN ON CANOOCHEE GARFIELD ROAD.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 12:00Z, 10.3 hours before the alert went out and 201 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 6 J/kg
Mixed-layer CIN: -6 J/kg
Mixed-layer LCL: 558 m above ground
0-6 km bulk shear: 48 kt
0-1 km storm-relative helicity: 121 m²/s²
0-3 km storm-relative helicity: 277 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

215 
WUUS52 KFFC 232215
SVRFFC
GAC107-232300-
/O.NEW.KFFC.SV.W.0042.180423T2215Z-180423T2300Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Peachtree City GA
615 PM EDT MON APR 23 2018

The National Weather Service in Peachtree City has issued a

* Severe Thunderstorm Warning for...
  Northeastern Emanuel County in east central Georgia...

* Until 700 PM EDT

* At 614 PM EDT, a severe thunderstorm was located over Swainsboro,
  moving east at 20 mph.

  HAZARD...60 mph wind gusts and nickel size hail. 

  SOURCE...Radar indicated. 

  IMPACT...Expect damage to roofs, siding, and trees. 

* Locations impacted include...
  Swainsboro, Twin City, Garfield, Canoochee, George L Smith State
  Park and Modoc.

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 3256 8203 3254 8203 3256 8208 3253 8213
      3253 8236 3267 8236 3274 8211 3266 8208
      3261 8200
TIME...MOT...LOC 2214Z 263DEG 16KT 3262 8229 

TORNADO...POSSIBLE
HAIL...0.88IN
WIND...60MPH
 
$$

The office that day

Everything else NWS Atlanta, GA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 23, 1:12 AM EDT	River Flood Warning	FFC	Dade	47 hr
Apr 23, 3:04 AM EDT	River Flood Warning	FFC	Walker	13 hr
Apr 23, 4:27 AM EDT	River Flood Warning	FFC	Forsyth, Fulton	60 hr
Apr 23, 6:10 AM EDT	River Flood Warning	FFC	Forsyth	18 hr
Apr 23, 8:14 AM EDT	Special Weather Statement	FFC	Laurens, Treutlen	31 min
Apr 23, 8:46 AM EDT	Special Weather Statement	FFC	Johnson, Treutlen	29 min
Apr 23, 9:25 AM EDT	Special Weather Statement	FFC	Emanuel, Glascock, Jefferson, Johnson, Treutlen	65 min
Apr 23, 1:41 PM EDT	Special Weather Statement	FFC	Laurens	34 min
Apr 23, 2:21 PM EDT	Special Weather Statement	FFC	Wilkinson	24 min
Apr 23, 2:38 PM EDT	Special Weather Statement	FFC	Butts	37 min
Apr 23, 2:47 PM EDT	Special Weather Statement	FFC	Newton	28 min
Apr 23, 3:14 PM EDT	Special Weather Statement	FFC	Walton	31 min
Apr 23, 3:44 PM EDT	Special Weather Statement	FFC	Rockdale	31 min
Apr 23, 3:50 PM EDT	Special Weather Statement	FFC	Laurens	25 min
Apr 23, 3:55 PM EDT	Tornado Warning	FFC	Henry, Rockdale	21 min
Apr 23, 4:12 PM EDT	Severe Thunderstorm Warning	FFC	DeKalb, Rockdale	18 min
Apr 23, 4:17 PM EDT	Severe Thunderstorm Warning	FFC	Laurens	28 min
Apr 23, 4:19 PM EDT	Special Weather Statement	FFC	Morgan	26 min
Apr 23, 4:23 PM EDT	Special Weather Statement	FFC	Johnson	37 min
Apr 23, 4:32 PM EDT	Severe Thunderstorm Warning	FFC	Greene, Morgan	43 min
Apr 23, 4:45 PM EDT	Severe Thunderstorm Warning	FFC	Emanuel, Johnson, Laurens	30 min
Apr 23, 4:51 PM EDT	Special Weather Statement	FFC	Telfair	24 min
Apr 23, 4:59 PM EDT	Severe Thunderstorm Warning	FFC	Dodge, Telfair, Wilcox	20 min
Apr 23, 5:12 PM EDT	Tornado Warning	FFC	Greene	33 min
Apr 23, 5:15 PM EDT	Severe Thunderstorm Warning	FFC	Emanuel, Johnson, Treutlen	30 min
Apr 23, 5:22 PM EDT	Special Weather Statement	FFC	Telfair	23 min
Apr 23, 5:33 PM EDT	Special Weather Statement	FFC	Bibb	27 min
Apr 23, 5:40 PM EDT	Special Weather Statement	FFC	Greene	35 min
Apr 23, 5:45 PM EDT	Severe Thunderstorm Warning	FFC	Emanuel	30 min
Apr 23, 5:50 PM EDT	Special Weather Statement	FFC	Morgan	25 min
Apr 23, 5:55 PM EDT	Special Weather Statement	FFC	Jones	35 min
Apr 23, 6:20 PM EDT	Special Weather Statement	FFC	Putnam	40 min
Apr 23, 6:24 PM EDT	Special Weather Statement	FFC	Wheeler	36 min
Apr 23, 6:51 PM EDT	Severe Thunderstorm Warning	FFC	Montgomery, Toombs, Wheeler	24 min
Apr 23, 6:59 PM EDT	Flash Flood Warning	FFC	Greene, Jasper, Morgan, Putnam	6 hr
Apr 23, 7:13 PM EDT	Special Weather Statement	FFC	Putnam	32 min
Apr 23, 7:15 PM EDT	Special Weather Statement	FFC	Emanuel, Montgomery, Toombs	45 min
Apr 23, 7:32 PM EDT	Severe Thunderstorm Warning	FFC	Emanuel, Montgomery, Toombs	28 min
Apr 23, 7:38 PM EDT	Special Weather Statement	FFC	Greene	37 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2018 Every severe thunderstorm warning in 2018

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.