Alert archive / Georgia / Tornado Warnings in 2010

Tornado Warning 37, NWS Atlanta, GA

November 30, 2010Hancock County, Georgia

NWS Atlanta, GA issued this tornado warning at Nov 30, 2010, 7:47 PM EST for Hancock County, Georgia. It was in force for 28 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Nov 30, 2010, 7:47 PM EST (00:47 UTC)
Expired: Nov 30, 2010, 8:15 PM EST
In force: 28 min
Issued by: NWS Atlanta, GA
Area: Storm-based polygon

County Hancock County, GA

The radar

The Robins AFB radar (KJGX), 83 km from the middle of the area, began a volume at 00:49 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.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Nov 30, 2:34 PM EST	Tornado Watch	SPC	7 hr

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 00:00Z, 0.8 hours before the alert went out and 278 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: 565 J/kg
Mixed-layer CIN: -6 J/kg
Mixed-layer LCL: 498 m above ground
0-6 km bulk shear: 49 kt
0-1 km storm-relative helicity: 267 m²/s²
0-3 km storm-relative helicity: 272 m²/s²
Significant tornado parameter: 0.8
Supercell composite: 6.5

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

805 
WFUS52 KFFC 010047
TORFFC
GAC141-010115-
/O.NEW.KFFC.TO.W.0037.101201T0047Z-101201T0115Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
747 PM EST TUE NOV 30 2010

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHERN HANCOCK COUNTY IN EAST CENTRAL GEORGIA

* UNTIL 815 PM EST

* AT 744 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 10 MILES WEST OF
  SPARTA...MOVING NORTHEAST AT 40 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  SHOULDERBONE...CULVERTON...SPRINGFIELD AND POWELTON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

WHEN A TORNADO WARNING IS ISSUED BASED ON DOPPLER RADAR...IT MEANS
THAT STRONG ROTATION HAS BEEN DETECTED IN THE STORM. A TORNADO MAY
ALREADY BE ON THE GROUND...OR IS EXPECTED TO DEVELOP SHORTLY. IF YOU
ARE IN THE PATH OF THIS DANGEROUS STORM...MOVE INDOORS AND TO A
BASEMENT OR INTERIOR ROOM ON THE GROUND FLOOR. STAY AWAY FROM
WINDOWS. IF DRIVING...DO NOT SEEK SHELTER UNDER A HIGHWAY OVERPASS.

IF YOU SEE WIND DAMAGE...LARGE HAIL OR SIGNIFICANT FLOODING...WAIT
UNTIL AFTER 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.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM EST TUESDAY EVENING
FOR GEORGIA.

&&

LAT...LON 3319 8313 3326 8317 3345 8298 3345 8296
      3344 8292 3344 8288 3335 8280 3332 8279
      3331 8277 3328 8277
TIME...MOT...LOC 0047Z 245DEG 36KT 3324 8310

$$

1 follow-up statement

271 
WWUS52 KFFC 010105
SVSFFC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
805 PM EST TUE NOV 30 2010

GAC141-010115-
/O.CON.KFFC.TO.W.0037.000000T0000Z-101201T0115Z/
HANCOCK GA-
805 PM EST TUE NOV 30 2010

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 815 PM EST FOR
NORTHEASTERN HANCOCK COUNTY...

AT 758 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A STRONG STORM CAPABLE OF PRODUCING A TORNADO LOCATED 
NEAR SPARTA...MOVING NORTHEAST AT 40 MPH.

THIS STORM HAS WEAKENED AND...ALTHOUGH THE TORNADO THREAT STILL 
EXISTS...THE WARNING WILL LIKELY BE ALLOWED TO EXPIRE AT 815 PM EST.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
CULVERTON...SPRINGFIELD AND POWELTON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU SEE WIND DAMAGE...LARGE HAIL OR SIGNIFICANT FLOODING...WAIT
UNTIL AFTER 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.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM EST TUESDAY EVENING
FOR GEORGIA.

&&

LAT...LON 3323 8305 3343 8298 3344 8288 3341 8285
      3335 8282 3331 8277 3328 8278
TIME...MOT...LOC 0103Z 244DEG 37KT 3331 8292

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Nov 30, 7:02 PM EST	Severe Thunderstorm Warning	FFC	Baldwin, Jones	28 min
Nov 30, 7:10 PM EST	Severe Thunderstorm Warning	FFC	Bibb, Houston, Twiggs, Wilkinson	50 min
Nov 30, 7:15 PM EST	River Flood Warning	FFC	Forsyth	12 hr
Nov 30, 8:04 PM EST	River Flood Warning	FFC	Forsyth, Fulton	30 hr
Nov 30, 8:53 PM EST	Severe Thunderstorm Warning	FFC	Glascock, Jefferson, Warren, Washington	37 min
Nov 30, 10:00 PM EST	River Flood Warning	FFC	Gwinnett, Walton	6 hr
Dec 1, 6:51 AM EST	River Flood Warning	FFC	Clarke, Greene, Oconee	12 hr
Dec 1, 9:48 AM EST	River Flood Warning	FFC	Gwinnett	4 hr

Nearby

Tornado Warnings in Georgia, 2010 Every tornado warning in 2010 Tornadoes in 2010

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.