Alert archive / Georgia / Severe Thunderstorm Warnings in 2009

Severe Thunderstorm Warning 49, NWS Atlanta, GA

February 28, 2009Harris County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Feb 28, 2009, 9:03 AM EST for Harris County, Georgia. It was in force for 57 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: Feb 28, 2009, 9:03 AM EST (14:03 UTC)
Expired: Feb 28, 2009, 10:00 AM EST
In force: 57 min
Issued by: NWS Atlanta, GA
Area: Storm-based polygon

County Harris County, GA

The radar

The Atlanta radar (KFFC), 78 km from the middle of the area, began a volume at 14:02 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

Time	Report	Where	Remark
Feb 28, 9:30 AM EST	TSTM WND DMG	15 Sw Hamilton, GA	ONE TREE DOWN NEAR GOAT ROCK LAKE DAM.

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.

Issued	Product	Office	Lasted
Feb 28, 8:25 AM EST	Tornado Watch	SPC	3 hr

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 2.1 hours before the alert went out and 82 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 509 m above ground
0-6 km bulk shear: 50 kt
0-1 km storm-relative helicity: 524 m²/s²
0-3 km storm-relative helicity: 700 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

000 
WUUS52 KFFC 281403
SVRFFC
GAC145-281500-
/O.NEW.KFFC.SV.W.0049.090228T1403Z-090228T1500Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
903 AM EST SAT FEB 28 2009

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  HARRIS COUNTY IN WEST CENTRAL GEORGIA

* UNTIL 1000 AM EST

* AT 858 AM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZED HAIL...AND
  DAMAGING WINDS UP TO 60 MPH.  THIS STORM WAS LOCATED 34 MILES WEST
  OF HAMILTON...MOVING EAST AT 45 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO PINE
  MOUNTAIN-CALLAWAY GARDENS...WAVERLY HALL AND SHILOH.

DOPPLER RADAR HAS INDICATED ROTATION WITHIN THIS STORM. ALTHOUGH
CURRENT DATA DOES NOT INDICATE THE EXISTENCE OF A TORNADO...A TORNADO
MAY STILL DEVELOP. IF A TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO
A PLACE OF SAFETY INSIDE A STURDY STRUCTURE...SUCH AS A BASEMENT OR
SMALL INTERIOR ROOM.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 200 PM EST SATURDAY AFTERNOON
FOR SOUTHERN GEORGIA.

IF YOU SEE WIND DAMAGE...LARGE HAIL OR SIGNIFICANT 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.

LAT...LON 3286 8475 3283 8469 3273 8467 3269 8470
      3268 8468 3258 8469 3258 8490 3260 8491
      3260 8507 3266 8510 3268 8509 3276 8514
      3279 8513 3280 8516 3287 8518
TIME...MOT...LOC 1403Z 257DEG 41KT 3272 8539

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 28, 8:58 AM EST	River Flood Warning	FFC	Clarke, Greene, Oconee	5 days
Feb 28, 9:23 AM EST	Tornado Warning	FFC	Harris, Muscogee	52 min
Feb 28, 9:40 AM EST	Severe Thunderstorm Warning	FFC	Chattahoochee, Muscogee	50 min
Feb 28, 9:52 AM EST	Severe Thunderstorm Warning	FFC	Macon, Marion, Schley, Taylor	53 min
Feb 28, 10:13 AM EST	Tornado Warning	FFC	Chattahoochee, Marion	47 min
Feb 28, 11:05 AM EST	Severe Thunderstorm Warning	FFC	Houston, Macon, Peach, Schley, Taylor	40 min
Feb 28, 11:14 AM EST	Tornado Warning	FFC	Macon	37 min
Feb 28, 11:18 AM EST	Tornado Warning	FFC	Crawford, Macon, Peach, Taylor	27 min
Feb 28, 11:32 AM EST	Tornado Warning	FFC	Houston, Pulaski	58 min
Feb 28, 11:35 AM EST	Severe Thunderstorm Warning	FFC	Dooly, Macon, Pulaski	40 min
Feb 28, 12:04 PM EST	Severe Thunderstorm Warning	FFC	Bleckley, Dodge, Pulaski, Wilcox	56 min
Feb 28, 12:42 PM EST	Severe Thunderstorm Warning	FFC	Sumter	33 min
Feb 28, 12:55 PM EST	Severe Thunderstorm Warning	FFC	Dodge, Laurens, Montgomery, Telfair, Treutlen, Wheeler	50 min
Feb 28, 12:57 PM EST	Severe Thunderstorm Warning	FFC	Dooly	48 min
Feb 28, 1:05 PM EST	Areal Flood Warning	FFC	Lamar, Spalding	5 hr
Feb 28, 1:05 PM EST	Severe Thunderstorm Warning	FFC	Crisp, Wilcox	40 min
Feb 28, 1:10 PM EST	Tornado Warning	FFC	Crisp, Dooly, Wilcox	50 min
Feb 28, 1:36 PM EST	Areal Flood Warning	FFC	Haralson	5 hr
Feb 28, 1:38 PM EST	Tornado Warning	FFC	Dodge, Telfair	46 min
Feb 28, 1:52 PM EST	Severe Thunderstorm Warning	FFC	Dodge, Laurens, Telfair, Wheeler	38 min
Feb 28, 2:24 PM EST	Severe Thunderstorm Warning	FFC	Montgomery, Telfair, Toombs, Wheeler	51 min
Feb 28, 3:20 PM EST	Wind Advisory	FFC	Baldwin, Banks, Barrow, Bartow, Bibb, Bleckley and 90 more	31 hr
Feb 28, 3:41 PM EST	Winter Weather Advisory	FFC	Baldwin, Banks, Barrow, Bartow, Bibb, Bleckley and 73 more	31 hr
Feb 28, 6:00 PM EST	Severe Thunderstorm Warning	FFC	Hancock, Washington	35 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2009 Every severe thunderstorm warning in 2009

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.