Alert archive / Georgia / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 173, NWS Atlanta, GA

May 27, 1990Cobb County, Paulding County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at May 27, 1990, 1:00 PM EDT for Cobb County, Paulding County, Georgia. It was in force for 45 min.

The area

The counties it named.

The facts

Issued
May 27, 1990, 1:00 PM EDT (17:00 UTC)
Expired
May 27, 1990, 1:45 PM EDT
In force
45 min
Issued by
NWS Atlanta, GA
Area
Whole counties

Counties Cobb County, GA, Paulding 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, 5.0 hours before the alert went out and 131 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 1990-05-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 881 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 1990-05-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 35 square meters per square second.193958Sfc1 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
881 J/kg
Mixed-layer CIN
-48 J/kg
Mixed-layer LCL
968 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
35 m²/s²
0-3 km storm-relative helicity
97 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KATL 271703
SVRATL
GAC067-223-271745-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ATLANTA  GA
100 PM EDT SUN MAY 27 1990
 
THE NATIONAL WEATHER SERVICE IN ATLANTA  HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  145 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN NORTHWEST GEORGIA
 
   ...SOUTHERN COBB COUNTY...EASTERN PAULDING COUNTY
 
AT 100 PM EDT RADAR INDICATED A SEVERE THUNDERSTORM IN SOUTH PAULDING
COUNTY SOUTH OF DALLAS MOVING TO THE EAST AT 30 MPH. PEA SIZED HAIL
WAS REPORTED WITH THIS THUNDERSTORM AS IT MOVED OVER WESTERN PAULDING
COUNTY...HOWEVER THE THUNDERSTORM CONTINUED TO INCREASE IN STRENGTH.
THE THUNDERSTORM SHOULD MOVE INTO SOUTH COBB COUNTY BY 130 PM.
 
 
IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER FROM THE WEATHER IN A
STRONG BUILDING.  DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN...
AND DEADLY LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS.
STAY INSIDE UAWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.

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 27, 8:15 AM EDT, 4 hours 45 minutes before
GAZ001>002-271400

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ATLANTA GA
815 AM EDT SUN MAY 27 1990

   ...THUNDERSTORMS MOVING ACROSS EXTREME NORTH GEORGIA...

  AT 810 AM EDT... STRONG THUNDERSTORMS WERE MOVING ACROSS EXTREME
NORTH GEORGIA... GENERALLY NORTH OF A LINE FROM ROME TO DAWSONVILLE.

  THE STRONGEST THUNDERSTORMS WERE LOCATED NEAR TRION AND JUST NORTH
OF CALHOUN. THESE THUNDERSTORMS LIKELY CONTAIN SMALL HAIL AS WELL AS
PRODUCING VERY HEAVY RAIN... STRONG GUSTY WINDS... AND DANGEROUS
LIGHTNING STRIKES.

  RESIDENTS OF EXTREME NORTH GEORGIA CAN EXPECT THUNDERSTORM
ACTIVITY TO CONTINUE AS OTHER STRONG THUNDERSTORMS IN NORTH ALABAMA
WILL BE MOVING INTO NORTH GEORGIA DURING THE NEXT FEW HOURS. THE
THUNDERSTORMS WERE MOVING EAST AT 30 MILES AN HOUR.
Special weather statement, May 27, 10:20 AM EDT, 2 hours 40 minutes before
GAZ002-004-1715-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ATHENS GA
1017 AM EDT SUN MAY 27 1990

SCATTERED THUNDERSTORMS...SOME WITH HEAVY RAINFALL...HAVE DEVELOPED
OVER NORTH GEORIGA THIS MORNING. THESE THUNDERSTORMS ARE MOVING
EAST AT ABOUT 25 MILES AN HOUR.

PERSONS IN NORTHEAST GEORGIA NORTH OF A LAWRENCEVILLE TO ELBERTON
LINE SHOULD BE ON THE ALERT FOR THREATENING WEATHER CONDITIONS FOR
THE NEXT SEVERAL HOURS...ESPECIALLY THOSE PARTICIPATING IN OUTDOOR
ACTIVITIES AND BOATERS ON AREA LAKES.

THESE THUNDERSTORMS ARE CAPABLE OF PRODUCING BRIEF HEAVY DOWNPOURS...
DANGEROUS LIGHTNING...BRIEF GUSTY SURFACE WINDS AND POSSIBLE SMALL
HAIL.
Special weather statement, May 27, 12:39 PM EDT, 21 minutes before
GAZ003-271800

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ATLANTA GA
1235 PM EDT SUN MAY 27 1990

   ...THUNDERSTORMS DEVELOPING RAPIDLY ACROSS NORTH GEORGIA...

  AT 1230 PM EDT...WEATHER SERVICE RADAR SHOWED RAPIDLY DEVELOPING
THUNDERSTORMS NEAR DOWNTOWN ATLANTA AND 10 MILES WEST OF DALLAS
GEORGIA NEAR THE PAULDING-HARALSON COUNTY LINE. THESE THUNDERSTORMS
WERE MOVING EAST AT 30 MPH. SOME OF THESE THUNDERSTORMS MAY CONTAIN
SMALL HAIL AS WELL AS PRODUCING VERY HEAVY RAIN...STRONG GUSTY WINDS...
SOME OF THESE THUNDERSTORMS MAY CONTAIN SMALL HAIL AS WELL AS
AND DANGEROUS LIGHTNING STRIKES. IN URBAN AREAS SOME LOCAL STREET
FLOODING MAY OCCUR.

  RESIDENTS OF EXTREME NORTH GEORGIA CAN, EXPECT THUNDERSTORMS
TO DEVELOP THE REMAINDER OF THE AFTERNOON AND EVENING AS THE AIR
OVER GEORGIA IS VERY WARM AND UNSTABLE. PEOPLE OUTDOORS ENJOYING
THE MEMORIAL DAY WEEKEND SHOULD REMAIN ALERT TO THE CHANGING WEATHER.
Special weather statement, May 27, 12:42 PM EDT, 18 minutes before
GAZ002-004-271845-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ATHENS GA
1241 PM EDT SUN MAY 27 1990

SCATTERED THUNDERSTORMS...SOME WITH HEAVY RAINFALL...WERE DEVELOPING
RAPIDLY OVER PARTS OF NORTHEAST GEORGIA. THE THUNDERSTORMS WITH THE
HEAVIEST RAINFALL WERE IN THE ATLANTA METRO AREA AND WERE MOVING EAST
AT ABOUT 30 MILES AN HOUR. OTHER THUNDERSTORMS WERE NOTED OVER LAKE
LANIER AND WERE DEVELOPING JUST SOUTH OF ATHENS.

PERSONS IN NORTHEAST GEORGIA...ESPECIALLY THOSE PARTICIPATING IN
OUTDOOR ACTIVITIES AND BOATERS ON AREA LAKES...SHOULD REMAIN ON
THE ALERT FOR THESE THUNDERSTORMS. BRIEF HEAVY DOWNPOURS, DANGEROUSE
LIGHTNING, BRIEF GUSTY SURFACE WINDS AND SMALL HAIL ARE POSSIBLE/
WITH THESE THUNDERSTORMS AS THEY MOVE THROUGH.
Special weather statement, May 27, 12:43 PM EDT, 17 minutes before
GAZ003-271800

SPECIAL WEATHER STATEMENT...CORRECTED
NATIONAL WEATHER SERVICE ATLANTA GA
1235 PM EDT SUN MAY 27 1990

   ...THUNDERSTORMS DEVELOPING RAPIDLY ACROSS NORTH GEORGIA...

  AT 1230 PM EDT...WEATHER SERVICE RADAR SHOWED RAPIDLY DEVELOPING
THUNDERSTORMS NEAR DOWNTOWN ATLANTA AND 10 MILES WEST OF DALLAS
GEORGIA NEAR THE PAULDING-HARALSON COUNTY LINE. THESE THUNDERSTORMS
WERE MOVING EAST AT 30 MPH. SOME OF THESE THUNDERSTORMS MAY CONTAIN
SMALL HAIL AS WELL AS PRODUCING VERY HEAVY RAIN...STRONG GUSTY WINDS...
AND DANGEROUS LIGHTNING STRIKES. IN URBAN AREAS SOME LOCAL STREET
FLOODING MAY OCCUR.

  RESIDENTS OF NORTH GEORGIA CAN EXPECT THUNDERSTORMS TO DEVELOP
THE REMAINDER OF THE 1AFTERNOON AND EVENING AS THE AIR OVER
GEORGIA IS VERY WARM AND UNSTABLE. PEOPLE OUTDOORS ENJOYING
THE MEMORIAL DAY WEEKEND SHOULD REMAIN ALERT TO THE CHANGING WEATHER.

The office that day

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

IssuedProductOfficeCountiesLasted
May 27, 12:42 PM EDTSevere Thunderstorm WarningFFCWashington48 min
May 27, 2:03 PM EDTSevere Thunderstorm WarningFFCChattooga27 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; the sounding from the Mesonet's radiosonde archive.