Alert archive / Georgia / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 45, NWS Atlanta, GA

May 18, 20184 counties in Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at May 18, 2018, 3:09 PM EDT for 4 counties in Georgia. It was in force for 36 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
May 18, 2018, 3:09 PM EDT (19:09 UTC)
Expired
May 18, 2018, 3:45 PM EDT
In force
36 min
Issued by
NWS Atlanta, GA
Area
Storm-based polygon
Hail
1.0 in
Wind
50.0 mph

Counties Baldwin County, GA, Jones County, GA, Twiggs County, GA, Wilkinson County, GA

The radar

The Robins AFB radar (KJGX), 28 km from the middle of the area, began a volume at 19:12 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

TimeReportWhereRemark
May 18, 3:22 PM EDTTSTM WND DMG3 S Browns Crossing, GAMULTIPLE TREES WERE REPORTED DOWN ALONG COUNTY LINE CHURCH ROAD IN WESTERN BALDWIN COUNTY.

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, 7.2 hours before the alert went out and 120 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-pSkew-T log-p diagram, Peachtre/Fal Fld, GA at 12:00Z on 2018-05-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 159 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Peachtre/Fal Fld, GA at 12:00Z on 2018-05-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -4 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
159 J/kg
Mixed-layer CIN
-75 J/kg
Mixed-layer LCL
749 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
-4 m²/s²
0-3 km storm-relative helicity
27 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.0

Open this sounding in Storm Lab

The text

As transmitted.

187 
WUUS52 KFFC 181909
SVRFFC
GAC009-169-289-319-181945-
/O.NEW.KFFC.SV.W.0045.180518T1909Z-180518T1945Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Peachtree City GA
309 PM EDT FRI MAY 18 2018

The National Weather Service in Peachtree City has issued a

* Severe Thunderstorm Warning for...
  Northwestern Wilkinson County in central Georgia...
  Central Baldwin County in central Georgia...
  North central Twiggs County in central Georgia...
  Southeastern Jones County in central Georgia...

* Until 345 PM EDT.

* At 308 PM EDT, a severe thunderstorm was located over Gordon, or 11
  miles west of Irwinton, moving north at 15 mph.

  HAZARD...Quarter size hail.

  SOURCE...Radar indicated.

* Locations impacted include...
  Milledgeville, Gordon, Ivey, Midway-Hardwick, Coopers, Hardwick,
  Browns Crossing, Allenwood, Mountain Springs, Pancras and
  Scottsboro.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Prepare immediately for large hail and damaging winds. People outside
should move immediately to shelter inside a strong building. Stay
away from windows.

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 3277 8333 3283 8350 3316 8336 3308 8312
TIME...MOT...LOC 1908Z 198DEG 15KT 3287 8336 

HAIL...1.00IN
WIND...<50MPH
 
$$
2 follow-up statements
632 
WWUS52 KFFC 181920
SVSFFC

Severe Weather Statement
National Weather Service Peachtree City GA
320 PM EDT FRI MAY 18 2018

GAC289-181929-
/O.CAN.KFFC.SV.W.0045.000000T0000Z-180518T1945Z/
Twiggs GA-
320 PM EDT FRI MAY 18 2018

...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL TWIGGS COUNTY IS
CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

LAT...LON 3285 8328 3289 8340 3290 8341 3289 8341
      3291 8346 3316 8336 3308 8312
TIME...MOT...LOC 1919Z 198DEG 15KT 3292 8334 

$$

GAC009-169-319-181945-
/O.CON.KFFC.SV.W.0045.000000T0000Z-180518T1945Z/
Wilkinson GA-Baldwin GA-Jones GA-
320 PM EDT FRI MAY 18 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 345 PM EDT
FOR NORTHWESTERN WILKINSON...CENTRAL BALDWIN AND SOUTHEASTERN JONES
COUNTIES...

At 319 PM EDT, a severe thunderstorm was located over Gordon, or 12
miles northwest of Irwinton, moving north at 15 mph.

HAZARD...Quarter size hail and strong winds.

SOURCE...Radar indicated.

IMPACT...Damage to vehicles is possible.

Locations impacted include...
Milledgeville, Gordon, Ivey, Midway-Hardwick, Coopers, Hardwick,
Browns Crossing, Allenwood, Pancras and Scottsboro.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Prepare immediately for large hail and damaging winds. People outside
should move to a shelter, inside a strong building and away from
windows.

&&

LAT...LON 3285 8328 3289 8340 3290 8341 3289 8341
      3291 8346 3316 8336 3308 8312
TIME...MOT...LOC 1919Z 198DEG 15KT 3292 8334 

HAIL...1.00IN
WIND...<50MPH
 
$$
490 
WWUS52 KFFC 181933
SVSFFC

Severe Weather Statement
National Weather Service Peachtree City GA
333 PM EDT FRI MAY 18 2018

GAC169-319-181942-
/O.CAN.KFFC.SV.W.0045.000000T0000Z-180518T1945Z/
Wilkinson GA-Jones GA-
333 PM EDT FRI MAY 18 2018

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN WILKINSON AND
SOUTHEASTERN JONES COUNTIES IS CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

LAT...LON 3298 8319 3298 8322 3296 8326 3295 8326
      3294 8328 3295 8329 3294 8331 3297 8337
      3306 8340 3316 8336 3308 8312
TIME...MOT...LOC 1932Z 198DEG 15KT 3297 8332 

$$

GAC009-181945-
/O.CON.KFFC.SV.W.0045.000000T0000Z-180518T1945Z/
Baldwin GA-
333 PM EDT FRI MAY 18 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 345 PM EDT
FOR CENTRAL BALDWIN COUNTY...

At 332 PM EDT, a severe thunderstorm was located over Coopers, or 9
miles southwest of Milledgeville, moving north at 15 mph.

HAZARD...Quarter size hail and strong winds.

SOURCE...Radar indicated.

IMPACT...Damage to vehicles is possible.

Locations impacted include...
Milledgeville, Midway-Hardwick, Coopers, Hardwick, Browns Crossing,
Allenwood, Pancras and Scottsboro.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Prepare immediately for large hail and strong winds. People outside 
should move to a shelter, inside a strong building and away from 
windows.

&&

LAT...LON 3298 8319 3298 8322 3296 8326 3295 8326
      3294 8328 3295 8329 3294 8331 3297 8337
      3306 8340 3316 8336 3308 8312
TIME...MOT...LOC 1932Z 198DEG 15KT 3297 8332 

HAIL...1.00IN
WIND...<50MPH
 
$$

The office that day

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

IssuedProductOfficeCountiesLasted
May 17, 8:02 PM EDTSpecial Weather StatementFFCCobb, Fulton28 min
May 17, 8:19 PM EDTSpecial Weather StatementFFCMeriwether41 min
May 17, 9:34 PM EDTSpecial Weather StatementFFCCherokee41 min
May 17, 9:42 PM EDTSpecial Weather StatementFFCBibb48 min
May 18, 11:55 AM EDTSpecial Weather StatementFFCMarion, Schley, Sumter, Webster50 min
May 18, 12:51 PM EDTSpecial Weather StatementFFCCrisp, Dooly24 min
May 18, 1:18 PM EDTSpecial Weather StatementFFCCrisp, Dooly42 min
May 18, 1:53 PM EDTSpecial Weather StatementFFCHouston, Peach52 min
May 18, 2:29 PM EDTSpecial Weather StatementFFCBibb, Crawford, Twiggs46 min
May 18, 3:02 PM EDTSpecial Weather StatementFFCDodge, Laurens43 min
May 18, 3:15 PM EDTSpecial Weather StatementFFCJones, Monroe30 min
May 18, 3:41 PM EDTSpecial Weather StatementFFCPutnam34 min
May 18, 3:44 PM EDTSpecial Weather StatementFFCJohnson31 min
May 18, 4:40 PM EDTSpecial Weather StatementFFCGlascock, Jefferson35 min
May 18, 5:03 PM EDTSpecial Weather StatementFFCTaliaferro, Warren27 min
May 18, 5:17 PM EDTSpecial Weather StatementFFCEmanuel28 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2018Every 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.