Alert archive / Georgia / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 7, NWS Atlanta, GA

January 2, 20174 counties in Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Jan 2, 2017, 11:31 PM EST for 4 counties in Georgia. It was in force for 44 min. 5 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
Jan 2, 2017, 11:31 PM EST (04:31 UTC)
Expired
Jan 3, 2017, 12:15 AM EST
In force
44 min
Issued by
NWS Atlanta, GA
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Dodge County, GA, Laurens County, GA, Telfair County, GA, Wheeler County, GA

The radar

The Robins AFB radar (KJGX), 67 km from the middle of the area, began a volume at 04:30 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
Jan 2, 11:35 PM ESTTSTM WND DMG4 Ene Milan, GAA HOUSE WAS REPORTED WITH ROOF SHINGLES BLOWN OFF. THERE WAS ALSO A FARM SHED THAT COLLAPSED IN THE STORM.
Jan 2, 11:35 PM ESTTSTM WND DMG4 Ene Milan, GAAT THE INTERSECTION OF EL BETHEL CHURCH ROAD AND HIGHWAY 280... A HOUSE WAS REPORTED WITH ROOF SHINGLES BLOWN OFF. THERE WAS ALSO A FARM SHED THAT COLLAPSED IN THE STORM.
Jan 2, 11:40 PM ESTTSTM WND DMGMcrae, GAIN THE SOUTH CORNER OF WHATLEY VINEYARD... 20 TO 25 TREES WERE UPROOTED AND A FEW WERE SNAPPED.
Jan 2, 11:40 PM ESTTSTM WND DMGMcrae, GAMULTIPLE TREES AND POWER LINES WERE DOWN NEAR THE CROSSING OF HIGHWAY 341 AND WHATLEY FARM ROAD. EVENT TIME WAS ESTIMATED FROM RADAR.
Jan 3, 12:03 AM ESTTSTM WND GST 552 Ne Mcrae, GARAWS SITE REPORTED 55 MPH WIND GUST AT LITTLE OCMULGEE STATE PARK

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
Jan 2, 10:27 PM ESTTornado WatchSPC3 hr

The nearest sounding before it

Jacksonville, FL (KJAX), launched 00:00Z, 4.5 hours before the alert went out and 221 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, Jacksonville, FL at 00:00Z on 2017-01-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1191 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, Jacksonville, FL at 00:00Z on 2017-01-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 98 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
1191 J/kg
Mixed-layer CIN
-35 J/kg
Mixed-layer LCL
953 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
98 m²/s²
0-3 km storm-relative helicity
122 m²/s²
Significant tornado parameter
0.6
Supercell composite
4.2

Open this sounding in Storm Lab

The text

As transmitted.

692 
WUUS52 KFFC 030431
SVRFFC
GAC091-175-271-309-030515-
/O.NEW.KFFC.SV.W.0007.170103T0431Z-170103T0515Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Peachtree City GA
1131 PM EST MON JAN 2 2017

The National Weather Service in Peachtree City has issued a

* Severe Thunderstorm Warning for...
  East central Dodge County in central Georgia...
  Wheeler County in central Georgia...
  North central Telfair County in central Georgia...
  Southeastern Laurens County in central Georgia...

* Until 1215 AM EST

* At 1131 PM EST, a severe thunderstorm was located near Chauncey, or
  9 miles southeast of Eastman, moving northeast at 40 mph.

  HAZARD...60 mph wind gusts. 

  SOURCE...Radar indicated. 

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

* Locations impacted include...
  McRae, Alamo, Helena, Glenwood, Scotland, Chauncey, Achord, Little
  Ocmulgee State Park, Cedar Grove, Landsburg and Jay Bird Springs.

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 300 AM EST for central
Georgia.

LAT...LON 3218 8315 3219 8315 3231 8296 3230 8272
      3208 8262 3196 8298
TIME...MOT...LOC 0431Z 233DEG 49KT 3208 8311 

HAIL...<.75IN
WIND...60MPH
 
$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 2, 7:15 PM ESTSpecial Weather StatementFFCMarion30 min
Jan 2, 7:26 PM ESTSpecial Weather StatementFFCChattahoochee, Muscogee64 min
Jan 2, 7:29 PM ESTSevere Thunderstorm WarningFFCMarion, Talbot, Taylor16 min
Jan 2, 7:45 PM ESTFlash Flood WarningFFCChattahoochee, Muscogee6 hr
Jan 2, 8:34 PM ESTSpecial Weather StatementFFCCrawford, Monroe, Taylor26 min
Jan 2, 9:02 PM ESTSpecial Weather StatementFFCCrawford, Monroe28 min
Jan 2, 10:51 PM ESTSevere Thunderstorm WarningFFCCrisp, Wilcox39 min
Jan 2, 11:13 PM ESTSevere Thunderstorm WarningFFCDodge, Pulaski, Telfair, Wilcox47 min
Jan 2, 11:57 PM ESTWind AdvisoryFFCBanks, Barrow, Bartow, Butts, Carroll, Catoosa and 47 more3 hr
Jan 3, 12:15 AM ESTSevere Thunderstorm WarningFFCEmanuel, Johnson, Laurens, Montgomery, Treutlen, Wheeler45 min
Jan 3, 12:30 AM ESTSevere Thunderstorm WarningFFCEmanuel, Laurens, Montgomery, Toombs, Treutlen, Wheeler45 min
Jan 3, 12:36 AM ESTRiver Flood WarningFFCGwinnett24 hr
Jan 3, 12:36 AM ESTRiver Flood WarningFFCForsyth, Fulton, Gwinnett6 days
Jan 3, 4:06 AM ESTRiver Flood WarningFFCBleckley, Pulaski72 hr
Jan 3, 4:06 AM ESTRiver Flood WarningFFCDodge, Telfair, Wilcox30 hr
Jan 3, 6:40 AM ESTRiver Flood WarningFFCBibb, Crawford, Houston, Peach40 hr
Jan 3, 7:28 AM ESTRiver Flood WarningFFCBibb, Houston, Jones, Monroe, Twiggs48 hr
Jan 3, 2:50 PM ESTRiver Flood WarningFFCCoweta, Fayette, Spalding24 hr

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.