Alert archive / Georgia / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 67, NWS Atlanta, GA

March 13, 1997Harris County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Mar 13, 1997, 6:03 PM EST for Harris County, Georgia. It was in force for 27 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Mar 13, 1997, 6:03 PM EST (23:03 UTC)
Expired: Mar 13, 1997, 6:30 PM EST
In force: 27 min
Issued by: NWS Atlanta, GA
Area: Whole counties

County Harris County, GA

The radar

The Atlanta radar (KFFC), 77 km from the middle of the area, began a volume at 23:07 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
Mar 13, 6:00 PM EST	Tornado Watch	SPC	6 hr

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 11.1 hours before the alert went out and 80 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: 847 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 160 m²/s²
0-3 km storm-relative helicity: 208 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 
TTAA00 KATL 132305 RRA
SVRATL
GAC145-132330-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
603 PM EST THU MAR 13 1997
 
THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  630 PM EST
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN WEST CENTRAL GEORGIA
 
   ...HARRIS COUNTY
 
AT 600 PM EST RADAR INDICATED A SEVERE THUNDERSTORM IN HARRIS COUNTY
OVER THE CITY OF HAMILTON. THIS STORM WAS MOVING WAS NORTH NORTHEAST AT
35 MPH.
 
THE PINE MOUNTAIN VALLEY IS IN THE PATH OF THIS STORM AS WELL AS THE
FRANKLIN D. ROOSEVELT STATE PARK.
 
 
A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA.  REMEMBER
SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES
WITH LITTLE OR NO ADVANCE WARNING.  REMAIN CALM BUT BE ALERT TO
RAPIDLY CHANGING WEATHER CONDITIONS.
 
 
KM

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Mar 13, 12:06 PM EST, 5 hours 57 minutes before

GAZ001>009-011>016-019>025-027-030>039-041>062-066>076-078>086-
091>098-103>113-132300-

NORTH AND CENTRAL GEORGIA THUNDERSTORM OUTLOOK
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1202 PM EST THU MAR 13 1997

THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER EXTREME SOUTHWEST
GEORGIA THIS AFTERNOON AND TONIGHT.

A STRONG LOW PRESSURE SYSTEM OVER THE LOWER MISSISSIPPI VALLEY IS
SPREADING CONSIDERABLE MOISTURE OVER THE MIDSOUTH TODAY. THE MOST
FAVORABLE CONDITIONS FOR STRENGTHENING STORMS WILL BE LOCATED OVER
MISSISSIPPI...ALABAMA...INTO SOUTHWEST GEORGIA THIS AFTERNOON AND
EVENING.

SCATTERED TO NUMEROUS SHOWERS AND A FEW THUNDERSTORMS ARE DEVELOPING
OVER GEORGIA NOW AND MOVING NORTH. SOME| OF THE STORMS MAY BE CAPABLE
OF PRODUCING STRONG GUSTY WINDS AND SOME HAIL.

SPOTTERS SHOULD TAKE NOTICE IN CASE ACTIVATION BECOMES NECESSARY.

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 13, 5:00 PM EST	Severe Thunderstorm Warning	FFC	Harris	50 min
Mar 13, 5:17 PM EST	Tornado Warning	FFC	Harris, Talbot	28 min
Mar 13, 5:25 PM EST	Severe Thunderstorm Warning	FFC	Macon	35 min
Mar 13, 5:42 PM EST	Tornado Warning	FFC	Meriwether, Talbot	48 min
Mar 13, 5:55 PM EST	Severe Thunderstorm Warning	FFC	Marion	35 min
Mar 13, 6:10 PM EST	Severe Thunderstorm Warning	FFC	Talbot	50 min
Mar 13, 6:18 PM EST	Severe Thunderstorm Warning	FFC	Pike	27 min

Nearby

Severe Thunderstorm Warnings in Georgia, 1997 Every severe thunderstorm warning in 1997

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.