Alert archive / Georgia / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 10, NWS Tallahassee, FL

February 16, 1990Harris County, Georgia

NWS Tallahassee, FL issued this severe thunderstorm warning at Feb 16, 1990, 10:24 AM EST for Harris County, Georgia. It was in force for 66 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Feb 16, 1990, 10:24 AM EST (15:24 UTC)
Expired
Feb 16, 1990, 11:30 AM EST
In force
66 min
Issued by
NWS Tallahassee, FL
Area
Whole counties

County Harris County, GA

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

What was reported inside it

TimeReportWhereRemark
Feb 16, 11:00 AM ESTThunderstorm Wind 0Harris, GA

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Athens Municipal, GA (KAHN), launched 12:00Z, 3.4 hours before the alert went out and 201 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, Athens Municipal, GA at 12:00Z on 1990-02-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 41 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Athens Municipal, GA at 12:00Z on 1990-02-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 269 square meters per square second.19395878Sfc1 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
41 J/kg
Mixed-layer CIN
-67 J/kg
Mixed-layer LCL
698 m above ground
0-6 km bulk shear
55 kt
0-1 km storm-relative helicity
269 m²/s²
0-3 km storm-relative helicity
289 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KCSG 161525
SVRCSG
GAC145-161630-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE COLUMBUS GA
1024 AM EST FRI FEB 16 1990
 
THE NATIONAL WEATHER SERVICE IN COLUMBUS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1130 AM EST
FOR PEOPLE IN THE FOLLOWING COUNTY...
 
IN WEST CENTRAL GEORGIA
          ...HARRIS
 
COLUMBUS RADAR INDICATED A LINE OF VERY STRONG THUNDERSTORMS EXTENDING
FROM MOUNTVILLE GA TO WEST POINT GA SOUTHWEST TO OPELIKA AL. THESE
THUNDERSTORMS WERE MOVING TO THE EAST NORTHEAST AT 45 MPH.
 
 
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.

The office that day

Everything else NWS Tallahassee, FL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Feb 16, 10:51 AM ESTSevere Thunderstorm WarningTAEMuscogee69 min
Feb 16, 11:51 AM ESTSevere Thunderstorm WarningTAEQuitman, Randolph, Stewart69 min
Feb 16, 11:51 AM ESTSevere Thunderstorm WarningTAEWebster69 min
Feb 16, 11:51 AM ESTSevere Thunderstorm WarningTAEMacon, Schley69 min
Feb 16, 1:06 PM ESTSevere Thunderstorm WarningTAEBaker, Dougherty, Early, Miller69 min
Feb 16, 1:06 PM ESTSevere Thunderstorm WarningTAELee, Worth69 min

Nearby

Severe Thunderstorm Warnings in Georgia, 1990Every severe thunderstorm warning in 1990

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.