Alert archive / Georgia / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 21, NWS Atlanta, GA

March 19, 20188 counties in Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Mar 19, 2018, 11:58 PM EDT for 8 counties in Georgia. It was in force for 47 min. 4 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
Mar 19, 2018, 11:58 PM EDT (03:58 UTC)
Expired
Mar 20, 2018, 12:45 AM EDT
In force
47 min
Issued by
NWS Atlanta, GA
Area
Storm-based polygon
Tornado
Possible
Hail
1.0 in
Wind
60.0 mph

Counties Butts County, GA, Fayette County, GA, Henry County, GA, Jasper County, GA, Morgan County, GA, Newton County, GA, Rockdale County, GA, Spalding County, GA

The radar

The Atlanta radar (KFFC), 39 km from the middle of the area, began a volume at 04:02 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
Mar 20, 12:00 AM EDTTSTM WND DMG1 Wnw Fincherville, GAMULTIPLE TREES WERE REPORTED DOWN ALONG KEYS FERRY ROAD.
Mar 20, 12:06 AM EDTTSTM WND DMG1 Ssw Oxford, GAA LARGE TREE AND POWER LINES WERE REPORTED DOWN ON GEIGER STREET NEAR THE EMA OFFICE.
Mar 20, 12:25 AM EDTTSTM WND DMG1 Ne Jackson, GATWO TREES WERE DOWNED ON STARK ROAD.
Mar 20, 12:30 AM EDTTSTM WND DMGJackson, GANEARLY 40 TREES WERE REPORTED DOWN FROM THE CENTER OF THE CITY OF JACKSON UP TOWARDS STARK ROAD.

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.

IssuedProductOfficeLasted
Mar 19, 9:08 PM EDTTornado WatchSPC7 hr

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 4.0 hours before the alert went out and 33 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 00:00Z on 2018-03-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 184 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 00:00Z on 2018-03-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 157 square meters per square second.1939587897Sfc1 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
184 J/kg
Mixed-layer CIN
-90 J/kg
Mixed-layer LCL
630 m above ground
0-6 km bulk shear
68 kt
0-1 km storm-relative helicity
157 m²/s²
0-3 km storm-relative helicity
258 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

As transmitted.

567 
WUUS52 KFFC 200358
SVRFFC
GAC035-113-151-159-211-217-247-255-200445-
/O.NEW.KFFC.SV.W.0021.180320T0358Z-180320T0445Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Peachtree City GA
1158 PM EDT MON MAR 19 2018

The National Weather Service in Peachtree City has issued a

* Severe Thunderstorm Warning for...
  Spalding County in west central Georgia...
  Southern Rockdale County in north central Georgia...
  Southeastern Fayette County in north central Georgia...
  Southwestern Morgan County in north central Georgia...
  Henry County in north central Georgia...
  Butts County in central Georgia...
  Jasper County in central Georgia...
  Newton County in north central Georgia...

* Until 1245 AM EDT

* At 1158 PM EDT, a severe thunderstorm was located near Oak Hill, or
  7 miles northeast of McDonough, moving east at 40 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...
  Griffin, McDonough, Conyers, Covington, Jackson, Madison,
  Monticello, Stockbridge, Hampton, Lovejoy, Locust Grove, Oxford,
  Porterdale, Newborn, Flovilla, Brooks, Mansfield, Jenkinsburg,
  Shady Dale and Woolsey.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.

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.

&&

A tornado watch remains in effect until 400 AM EDT for central, north
central and west central Georgia.

LAT...LON 3341 8439 3339 8440 3338 8439 3336 8440
      3335 8439 3335 8435 3343 8435 3343 8431
      3344 8429 3348 8429 3365 8404 3361 8370
      3360 8368 3361 8367 3359 8347 3320 8371
      3321 8425 3333 8451
TIME...MOT...LOC 0358Z 283DEG 37KT 3350 8403 

TORNADO...POSSIBLE
HAIL...1.00IN
WIND...60MPH
 
$$
2 follow-up statements
416 
WWUS52 KFFC 200420
SVSFFC

Severe Weather Statement
National Weather Service Peachtree City GA
1220 AM EDT TUE MAR 20 2018

GAC113-247-200428-
/O.CAN.KFFC.SV.W.0021.000000T0000Z-180320T0445Z/
Rockdale GA-Fayette GA-
1220 AM EDT TUE MAR 20 2018

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

A tornado watch remains in effect until 400 AM EDT for central, north
central and west central Georgia.

LAT...LON 3344 8421 3349 8398 3363 8392 3361 8370
      3360 8368 3361 8367 3359 8347 3320 8371
      3321 8425 3328 8440
TIME...MOT...LOC 0418Z 283DEG 37KT 3345 8378 

$$

GAC035-151-159-211-217-255-200445-
/O.CON.KFFC.SV.W.0021.000000T0000Z-180320T0445Z/
Spalding GA-Morgan GA-Henry GA-Butts GA-Jasper GA-Newton GA-
1220 AM EDT TUE MAR 20 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1245 AM EDT
FOR EASTERN SPALDING...SOUTHWESTERN MORGAN...SOUTHERN HENRY...
BUTTS...JASPER AND NEWTON COUNTIES...

At 1218 AM EDT, a severe thunderstorm was located over North Alcovy,
or 10 miles southeast of Covington, moving east at 45 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...
Griffin, McDonough, Covington, Jackson, Madison, Monticello, Hampton,
Locust Grove, Oxford, Porterdale, Newborn, Flovilla, Mansfield,
Jenkinsburg, Shady Dale, Sunny Side, East Griffin, Stewart,
Blacksville and Ola.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.

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.

&&

A tornado watch remains in effect until 400 AM EDT for central, north
central and west central Georgia.

LAT...LON 3344 8421 3349 8398 3363 8392 3361 8370
      3360 8368 3361 8367 3359 8347 3320 8371
      3321 8425 3328 8440
TIME...MOT...LOC 0418Z 283DEG 37KT 3345 8378 

TORNADO...POSSIBLE
HAIL...1.00IN
WIND...60MPH
 
$$
394 
WWUS52 KFFC 200432
SVSFFC

Severe Weather Statement
National Weather Service Peachtree City GA
1232 AM EDT TUE MAR 20 2018

GAC151-200441-
/O.CAN.KFFC.SV.W.0021.000000T0000Z-180320T0445Z/
Henry GA-
1232 AM EDT TUE MAR 20 2018

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

A tornado watch remains in effect until 400 AM EDT for central, north
central and west central Georgia.

LAT...LON 3330 8412 3330 8407 3332 8407 3331 8406
      3334 8403 3335 8403 3346 8385 3361 8370
      3360 8368 3361 8367 3359 8347 3320 8371
      3321 8425 3322 8426
TIME...MOT...LOC 0431Z 283DEG 37KT 3342 8362 

$$

GAC035-159-211-217-255-200445-
/O.CON.KFFC.SV.W.0021.000000T0000Z-180320T0445Z/
Spalding GA-Morgan GA-Butts GA-Jasper GA-Newton GA-
1232 AM EDT TUE MAR 20 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1245 AM EDT
FOR SOUTHEASTERN SPALDING...SOUTHWESTERN MORGAN...BUTTS...JASPER AND
SOUTHEASTERN NEWTON COUNTIES...

At 1231 AM EDT, a severe thunderstorm was located over Shady Dale, or
8 miles northeast of Monticello, moving east at 45 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...
Griffin, Jackson, Madison, Monticello, Newborn, Flovilla, Mansfield,
Jenkinsburg, Shady Dale, East Griffin, Stewart, Turtle Cove,
Worthville, McKibben, Calvin, Farrar, Eudora, North Alcovy,
McElheneys Crossroads and Indian Springs State Park.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.

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.

&&

A tornado watch remains in effect until 400 AM EDT for central, north
central and west central Georgia.

LAT...LON 3330 8412 3330 8407 3332 8407 3331 8406
      3334 8403 3335 8403 3346 8385 3361 8370
      3360 8368 3361 8367 3359 8347 3320 8371
      3321 8425 3322 8426
TIME...MOT...LOC 0431Z 283DEG 37KT 3342 8362 

TORNADO...POSSIBLE
HAIL...1.00IN
WIND...60MPH
 
$$

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 19, 9:22 PM EDTSevere Thunderstorm WarningFFCDade, Walker38 min
Mar 19, 9:36 PM EDTSevere Thunderstorm WarningFFCFloyd, Haralson, Polk39 min
Mar 19, 9:43 PM EDTTornado WarningFFCFloyd, Polk47 min
Mar 19, 9:59 PM EDTTornado Warning Tornado observedConsiderable damage threatFFCHaralson46 min
Mar 19, 10:14 PM EDTSevere Thunderstorm WarningFFCCobb, Paulding, Polk46 min
Mar 19, 10:32 PM EDTSevere Thunderstorm WarningFFCCarroll, Douglas, Haralson, Paulding43 min
Mar 19, 10:51 PM EDTSevere Thunderstorm WarningFFCCobb, Douglas, Fulton24 min
Mar 19, 10:53 PM EDTSevere Thunderstorm WarningFFCCarroll, Clayton, Douglas, Fayette, Fulton52 min
Mar 19, 10:59 PM EDTFlash Flood WarningFFCCarroll, Haralson, Paulding6 hr
Mar 19, 10:59 PM EDTTornado WarningFFCDouglas, Fulton31 min
Mar 19, 11:15 PM EDTSevere Thunderstorm WarningFFCCobb, DeKalb, Fulton, Henry30 min
Mar 19, 11:15 PM EDTSevere Thunderstorm WarningFFCCarroll, Coweta, Douglas, Fayette, Haralson, Heard30 min
Mar 19, 11:31 PM EDTSevere Thunderstorm WarningFFCButts, Clayton, DeKalb, Fayette, Henry, Newton and 3 more29 min
Mar 19, 11:44 PM EDTSpecial Weather StatementFFCGwinnett, Walton31 min
Mar 19, 11:47 PM EDTSpecial Weather StatementFFCCoweta28 min
Mar 19, 11:49 PM EDTSpecial Weather StatementFFCCarroll26 min
Mar 20, 12:00 AM EDTSpecial Weather StatementFFCMorgan, Rockdale30 min
Mar 20, 12:15 AM EDTSpecial Weather StatementFFCBarrow, Clarke, Oconee, Walton30 min
Mar 20, 12:20 AM EDTSpecial Weather StatementFFCCoweta40 min
Mar 20, 12:27 AM EDTSevere Thunderstorm WarningFFCGreene, Jasper, Morgan, Putnam48 min
Mar 20, 12:45 AM EDTSevere Thunderstorm WarningFFCButts, Jasper, Jones, Monroe30 min
Mar 20, 1:02 AM EDTSpecial Weather StatementFFCButts, Coweta, Heard, Jasper, Lamar, Meriwether and 5 more43 min
Mar 20, 1:13 AM EDTSevere Thunderstorm WarningFFCBaldwin, Hancock, Jones, Putnam, Warren, Washington47 min
Mar 20, 1:14 AM EDTSevere Thunderstorm WarningFFCHancock, Taliaferro, Warren46 min
Mar 20, 1:24 AM EDTSevere Thunderstorm WarningFFCButts, Jasper, Jones, Lamar, Monroe, Pike and 1 more51 min
Mar 20, 1:53 AM EDTSevere Thunderstorm WarningFFCBaldwin, Glascock, Hancock, Jefferson, Johnson, Washington52 min
Mar 20, 1:58 AM EDTSpecial Weather StatementFFCMeriwether, Pike, Troup32 min
Mar 20, 2:35 AM EDTSpecial Weather StatementFFCHarris, Jones, Lamar, Meriwether, Monroe, Pike and 2 more25 min
Mar 20, 2:46 AM EDTSevere Thunderstorm WarningFFCEmanuel, Jefferson, Washington44 min
Mar 20, 3:13 AM EDTSpecial Weather StatementFFCBibb, Upson32 min
Mar 20, 3:27 AM EDTSpecial Weather StatementFFCJefferson33 min
Mar 20, 3:57 AM EDTSpecial Weather StatementFFCTwiggs, Wilkinson33 min
Mar 20, 3:59 AM EDTSpecial Weather StatementFFCJohnson31 min
Mar 20, 4:27 AM EDTSpecial Weather StatementFFCEmanuel33 min
Mar 20, 5:55 AM EDTDense Fog AdvisoryFFCBanks, Barrow, Bartow, Carroll, Catoosa, Chattooga and 37 more4 hr
Mar 20, 3:32 PM EDTWind AdvisoryFFCBaldwin, Banks, Barrow, Bartow, Bibb, Bleckley and 90 more28 hr

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.