Alert archive / Georgia / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 177, NWS Atlanta, GA

May 28, 1990Bleckley County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at May 28, 1990, 1:16 PM EDT for Bleckley County, Georgia. It was in force for 44 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
May 28, 1990, 1:16 PM EDT (17:16 UTC)
Expired
May 28, 1990, 2:00 PM EDT
In force
44 min
Issued by
NWS Atlanta, GA
Area
Whole counties

County Bleckley 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
May 28, 1:35 PM EDTThunderstorm Wind 0Bleckley, 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, 5.3 hours before the alert went out and 169 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 1990-05-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 291 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 1990-05-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 55 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
291 J/kg
Mixed-layer CIN
-119 J/kg
Mixed-layer LCL
1088 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
55 m²/s²
0-3 km storm-relative helicity
140 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.4

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMCN 281717
SVRMCN
GAC023-281800-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MACON GA
116 PM EDT MON MAY 28 1990
 
THE NATIONAL WEATHER SERVICE IN MACON HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  200 PM EDT
FOR PEOPLE IN THE FOLLOWING COUNTY...
 
IN CENTRAL GEORGIA
          ...BLECKLEY
 
AT 115 PM WEATHER RADAR SHOWED A SEVERE THUNDERSTORM IN SOUTHWEST
BLECKLEY COUNTY THIS STORM WAS MOVING NORTHEAST AT 30 MPH.
 
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF YOUR HOME OR BUSINESS.  HEAVY RAINS FLOOD ROADS QUICKLY SO
DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.
 
THIS IS A DANGEROUS STORM.  IF YOU ARE IN ITS PATH YOU SHOULD
PREPARE FOR DAMAGING WIND IN EXCESS OF 55 MPH...LARGE HAIL...AND
DEADLY LIGHTNING.  PEOPLE OUTSIDE SHO?ULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT STAY AWAY FROM WINDOWS.

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, May 28, 10:48 AM EDT, 2 hours 28 minutes before
GAZ008-011-281545-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE COLUMBUS GA
1047 AM EDT MON MAY 28 1990

AT 1040 WEATHER RADAR AT COLUMBUS SHOWED SCATTERED THUNDERSTORMS FROM
NEAR FORT GAINES SOUTHEAST TO NEAR BAINBRIDGE GEORGIA. THESE
THUNDERSTORMS WAS MOVING EAST AT 20 MILES AN HOUR.

THESE THUNDERSTORMS WILL PRODUCE STRONG GUSTY WINDS...DANGEROUS
LIGHTNING..VERY HEAVY RAINFALL AND POSSIBLE SMALL HAIL AS THEY MOVE
THROUGH THE AREA DURING THE NEXT COUPLE OF HOURS.

STAY TUNED TO NOAA WEATHER RADIO OR OTHER NEWS MEDIA FOR ADDITIONAL
STATEMENTS ON THESE THUNDERSTORMS.
Special weather statement, May 28, 12:17 PM EDT, 59 minutes before
GAZ006-008-009-281615-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MACON GA
1215 PM EDT MON MAY 28 1990

AT 1210 PM WEATHER SERVICE RADAR SHOWED THUNDERSTORMS BEGINNING
TO DEVELOPE ACROSS CENTRAL AND EAST GEORGIA. THE STRONGEST THUNDER-
STORMS AT THIS TIME WERE NEAR AUGUSTA GEORGIA AND NORTH OF DUBLIN
GEORGIA. MOVEMENT WAS NORTHEAST AT 30 MILES AN HOUR.

DUE TO THE HEATING AND VERY MOIST UNSTABLE AIR MASS OVER THE
STATE TODAY..VERY STRONG THUNDERSTORMS ARE LIKELY TO DEVELOPE THIS
AFTERNOON. SOME OF THESE THUNDERSTORMS COULD POSSIBLY BE SEVERE ACROSS
CENTRAL AND SOUTHEAST GEORGIA.

PEOPLE OUTSIDE ON THIS MEMORIAL DAY SHOULD BE ALERT TO RAPIDLY CHANGING
WEATHER AND MOVE INDOORS IF THUNDERSTORMS APROACH.

STAY TUNED TO NOAA WEATHER RADIO OR OTHER NEWS MEDIA FOR ADDITIONAL
STATEMENTS ON THIS WEATHER SITUATION.
Special weather statement, May 28, 12:58 PM EDT, 18 minutes before
GAZ002-004-282345-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ATHENS GA
1250 PM EDT MON MAY 28 1990

.....SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 8 PM EDT FOR
BANKS...CLARKE...ELBERT...FRANKLIN...GREENE...HABERSHAM...HART...
JACKSON...MADISON...MORGAN...OCNONEE...OGLETHORPE...RABUN...
STEPHENS AND TALIAFERRO COUNTIES OF NORTHEAST GEORGIA.....

AT 1 PM EDT SCATTERED THUNDERSTORMS WERE DEVELOPING RAPIDLY OVER
NORTHEAST GEORGIA. THESE THUNDERSTORMS ARE MOVING NORTHEAST AT
40 MILES AN HOUR. A COLD FRONT WILL BE ENTERING NORTHEAST GEORGIA
THIS AFTERNOON WHICH WILL INCREASE THE CHANCES OF POSSIBLE SEVERE
THUNDERSTORMS FOR THE AFOREMENTIONED COUNTIES OF NORTHEAST GEORGIA.

PERSONS -SHOULD BE ON THE ALERT FOR POSSIBLE THREATENING WEATHER
CONDITIONS THIS AFTERNOON AND EVENING.

The office that day

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

IssuedProductOfficeCountiesLasted
May 28, 1:06 PM EDTSevere Thunderstorm WarningFFCJefferson54 min
May 28, 3:29 PM EDTSevere Thunderstorm WarningFFCBarrow, Walton61 min
May 28, 4:52 PM EDTSevere Thunderstorm WarningFFCJasper53 min
May 28, 5:06 PM EDTSevere Thunderstorm WarningFFCHabersham, Stephens69 min
May 28, 5:24 PM EDTSevere Thunderstorm WarningFFCFranklin, Hart66 min
May 28, 5:48 PM EDTSevere Thunderstorm WarningFFCMonroe42 min
May 28, 6:03 PM EDTSevere Thunderstorm WarningFFCJones42 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.