Alert archive / Georgia / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 41, NWS Atlanta, GA

March 1, 20174 counties in Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Mar 1, 2017, 3:39 PM EST for 4 counties in Georgia. It was in force for 38 min. 3 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 1, 2017, 3:39 PM EST (20:39 UTC)
Expired
Mar 1, 2017, 4:17 PM EST
In force
38 min
Issued by
NWS Atlanta, GA
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Catoosa County, GA, Dade County, GA, Walker County, GA, Whitfield County, GA

What was reported inside it

TimeReportWhereRemark
Mar 1, 3:47 PM ESTHAIL 11 Nw Rising Fawn, GAQUARTER-SIZED HAIL REPORTED AT THE PILOT GAS STATION IN RISING FAWN.
Mar 1, 3:48 PM ESTTSTM WND DMG1 Nnw Rising Fawn, GASEVERAL TREES DOWN NEAR I-59... EXIT 4.
Mar 1, 3:48 PM ESTTSTM WND DMGRising Fawn, GATREES DOWN AND POWER LINES DOWN AT THE INTERSECTION OF HWY 11-S AND LAMBERT LN.

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 1, 12:48 PM ESTTornado WatchSPC6 hr

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 8.7 hours before the alert went out and 176 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 2017-03-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 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 2017-03-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 173 square meters per square second.1939587897117Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
680 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
173 m²/s²
0-3 km storm-relative helicity
306 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

092 
WUUS52 KFFC 012039
SVRFFC
GAC047-083-295-313-012130-
/O.NEW.KFFC.SV.W.0041.170301T2039Z-170301T2130Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Peachtree City GA
339 PM EST WED MAR 1 2017

The National Weather Service in Peachtree City has issued a

* Severe Thunderstorm Warning for...
  Catoosa County in northwestern Georgia...
  West central Whitfield County in northwestern Georgia...
  Central Walker County in northwestern Georgia...
  Central Dade County in northwestern Georgia...

* Until 430 PM EST

* At 338 PM EST, a severe thunderstorm was located over Ider, or 13
  miles southwest of Trenton, 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...
  Lafayette, Ringgold, Trenton, Fort Oglethorpe, Chickamauga, Rising
  Fawn, Noble, Indian Springs, Wood Station, Graysville, Blue Spring,
  Linwood, Boynton, Beaumont, Cloudland Canyon State Park, Cooper
  Heights, Rock Spring, Chattanooga  Valley and Fairview.

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.

&&

A tornado watch remains in effect until 700 PM EST for northwestern
Georgia.

LAT...LON 3475 8506 3465 8554 3477 8557 3486 8558
      3499 8511
TIME...MOT...LOC 2038Z 257DEG 41KT 3473 8567 

HAIL...1.00IN
WIND...60MPH
 
$$
1 follow-up statement
038 
WWUS52 KFFC 012117
SVSFFC

Severe Weather Statement
National Weather Service Peachtree City GA
417 PM EST WED MAR 1 2017

GAC047-083-295-313-012126-
/O.CAN.KFFC.SV.W.0041.000000T0000Z-170301T2130Z/
Catoosa GA-Whitfield GA-Walker GA-Dade GA-
417 PM EST WED MAR 1 2017

...THE SEVERE THUNDERSTORM WARNING FOR CATOOSA...WEST CENTRAL
WHITFIELD...CENTRAL WALKER AND CENTRAL DADE COUNTIES IS CANCELLED...
        
The storm which prompted the warning has moved out of the area.
Therefore the warning has been cancelled.

A tornado watch remains in effect until 700 PM EST for northwestern
Georgia.

LAT...LON 3475 8506 3465 8554 3477 8557 3486 8558
      3499 8511
TIME...MOT...LOC 2115Z 257DEG 41KT 3483 8514 

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 1, 4:12 PM ESTSpecial Weather StatementFFCMurray, Whitfield33 min
Mar 1, 4:19 PM ESTSevere Thunderstorm WarningFFCBartow, Chattooga, Floyd, Gordon, Murray41 min
Mar 1, 4:50 PM ESTSpecial Weather StatementFFCFannin, Union25 min
Mar 1, 4:55 PM ESTSevere Thunderstorm WarningFFCBartow, Cherokee, Gordon, Pickens50 min
Mar 1, 4:56 PM ESTSpecial Weather StatementFFCChattooga34 min
Mar 1, 4:58 PM ESTSevere Thunderstorm WarningFFCFannin, Gilmer, Lumpkin, Towns, Union, White47 min
Mar 1, 5:06 PM ESTSpecial Weather StatementFFCBanks24 min
Mar 1, 5:30 PM ESTSpecial Weather StatementFFCPolk30 min
Mar 1, 5:36 PM ESTSpecial Weather StatementFFCLumpkin24 min
Mar 1, 5:47 PM ESTSevere Thunderstorm WarningFFCDawson, Hall, Lumpkin, White43 min
Mar 1, 5:53 PM ESTSpecial Weather StatementFFCPolk37 min
Mar 1, 6:11 PM ESTSpecial Weather StatementFFCDawson34 min
Mar 1, 6:14 PM ESTSpecial Weather StatementFFCBanks31 min
Mar 1, 6:20 PM ESTSevere Thunderstorm WarningFFCCarroll, Douglas, Haralson, Paulding40 min
Mar 1, 6:23 PM ESTSpecial Weather StatementFFCBanks, Hall37 min
Mar 1, 6:35 PM ESTSpecial Weather StatementFFCCobb25 min
Mar 1, 6:57 PM ESTSevere Thunderstorm WarningFFCCarroll, Coweta, Douglas, Fulton48 min
Mar 1, 6:58 PM ESTSpecial Weather StatementFFCCobb, Douglas, Fulton32 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.