Alert archive / Georgia / Severe Thunderstorm Warnings in 1989

Severe Thunderstorm Warning 143, NWS Atlanta, GA

July 26, 1989Clayton County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Jul 26, 1989, 5:30 PM EDT for Clayton County, Georgia. It was in force for 45 min.

The area

The counties it named.

The facts

Issued
Jul 26, 1989, 5:30 PM EDT (21:30 UTC)
Expired
Jul 26, 1989, 6:15 PM EDT
In force
45 min
Issued by
NWS Atlanta, GA
Area
Whole counties

County Clayton County, GA

The radar

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

The nearest sounding before it

Athens Municipal, GA (KAHN), launched 12:00Z, 9.5 hours before the alert went out and 108 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 1989-07-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1328 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 1989-07-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 19 square meters per square second.1939Sfc1 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
1328 J/kg
Mixed-layer CIN
-16 J/kg
Mixed-layer LCL
598 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
19 m²/s²
0-3 km storm-relative helicity
37 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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, Jul 26, 2:24 PM EDT, 3 hours 6 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE ATHENS GA
225 PM EDT WED JUL 26 1989

...THUNDERSTORMS HAVE DEVELOPED IN THE NORTHEAST GEORGIA MOUNTAINS...

A LINE OF THUNDERSTORMS...15 MILES WIDE...WAS INDICATED OVER THE
NORTHEAST GEORGIA MOUNTAINS FROM NEAR CLAYTON TO JASPER GEORGIA.

THESE STORMS ARE CAPABLE OF PRODUCING HEAVY RAINS...GUSTY WINDS...
FREQUENT LIGHTNING AND POSSIBLY SOME SMALL HAIL.

MOVEMENT WAS TO THE SOUTHWEST 10 MPH.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 25, 8:38 PM EDTSevere Thunderstorm WarningFFCBartow, Floyd, Polk52 min
Jul 26, 4:49 PM EDTSevere Thunderstorm WarningFFCCobb, Fulton41 min
Jul 26, 5:30 PM EDTSevere Thunderstorm WarningFFCDouglas, Fulton45 min

Nearby

Severe Thunderstorm Warnings in Georgia, 1989Every severe thunderstorm warning in 1989

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.