Alert archive / Georgia / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 284, NWS Atlanta, GA

July 19, 2007Crisp County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Jul 19, 2007, 5:57 PM EDT for Crisp County, Georgia. It was in force for 33 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: Jul 19, 2007, 5:57 PM EDT (21:57 UTC)
Expired: Jul 19, 2007, 6:30 PM EDT
In force: 33 min
Issued by: NWS Atlanta, GA
Area: Counties, with a storm outline in the text

County Crisp County, GA

The radar

The Robins AFB radar (KJGX), 96 km from the middle of the area, began a volume at 21:59 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 nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 10.0 hours before the alert went out and 173 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: 2382 J/kg
Mixed-layer CIN: -40 J/kg
Mixed-layer LCL: 896 m above ground
0-6 km bulk shear: 11 kt
0-1 km storm-relative helicity: 13 m²/s²
0-3 km storm-relative helicity: 43 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 192158
SVRFFC
GAC081-192230-
/O.NEW.KFFC.SV.W.0284.070719T2157Z-070719T2230Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
557 PM EDT THU JUL 19 2007

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN CRISP COUNTY IN CENTRAL GEORGIA

* UNTIL 630 PM EDT

* AT 555 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR AND OFF     
  DUTY LAW ENFORCEMENT INDICATED A SEVERE THUNDERSTORM CAPABLE OF    
  PRODUCING DAMAGING WINDS UP TO 60 MPH. THIS STORM WAS LOCATED NEAR 
  ARABI...MOVING SOUTHEAST AT 15 MPH.

* THE SEVERE THUNDERSTORM WILL OTHERWISE REMAIN OVER MAINLY RURAL
  AREAS OF THE INDICATED COUNTY.

TREES WERE KNOCKED DOWN AND CARS BLOWN OFF HIGHWAY 300.

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING AND AWAY FROM WINDOWS.

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 3193 8362 3184 8380 3181 8376 3180 8360

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 19, 2:13 PM EDT	Severe Thunderstorm Warning	FFC	Spalding	23 min
Jul 19, 3:15 PM EDT	Severe Thunderstorm Warning	FFC	Jones	16 min
Jul 19, 4:49 PM EDT	Severe Thunderstorm Warning	FFC	Dooly, Pulaski	56 min
Jul 19, 5:48 PM EDT	Severe Thunderstorm Warning	FFC	Wilcox	30 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2007 Every severe thunderstorm warning in 2007

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.