Alert archive / Georgia / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 4, NWS Atlanta, GA
NWS Atlanta, GA issued this severe thunderstorm warning at Apr 15, 1987, 3:16 AM EDT for Dawson County, Hall County, Lumpkin County, Georgia. It was in force for 59 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
- Apr 15, 1987, 3:16 AM EDT (07:16 UTC)
- Expired
- Apr 15, 1987, 4:15 AM EDT
- In force
- 59 min
- Issued by
- NWS Atlanta, GA
- Area
- Whole counties
Counties Dawson County, GA, Hall County, GA, Lumpkin 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
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 15, 3:45 AM EDT | Thunderstorm Wind 0 | Dawson, 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 00:00Z, 7.3 hours before the alert went out and 85 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.
- Mixed-layer CAPE
- 569 J/kg
- Mixed-layer CIN
- -13 J/kg
- Mixed-layer LCL
- 646 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 254 m²/s²
- 0-3 km storm-relative helicity
- 369 m²/s²
- Significant tornado parameter
- 0.5
- Supercell composite
- 2.8
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KAHN 150716 RRA
SVRAHN
GAC139-187-085-150815-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ATHENS GA
316 AM EDT WED APR 15 1987
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING
EFFECTIVE UNTIL 415 AM EDT FOR PEOPLE IN THE FOLLOWING COUNTIES...
IN NORTHEAST GEORGIA
...HALL...LUMPKIN
IN NORTHWEST GEORGIA
...DAWSON
AT 315 AM EDT...RADAR INDICATED A SEVERE THUNDERSTORM ENTERING DAWSON
COUNTY FROM THE WEST AT 25 MPH.
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 SHOULD 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, Apr 15, 2:05 AM EDT, 1 hour 11 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ATLANTA GA 200 AM EDT WED APR 15 1987 ...LINE OF STRONG THUNDERSTORMS WEST AND NORTH OF ATLANTA... AT 200 AM EDT A LINE OF STRONG THUNDERSTORMS 10 TO 15 MILES WIDE EXTENDED FROM NEAR LAGRANGE TO NEAR BLUE RIDGE. THE STRONGEST THUNDERSTORM WAS NEAR CARTERSVILLE. THE LINE WAS MOVING EAST AT NEAR 20 MPH. SMALL HAIL AND GUSTY WINDS ARE POSSIBLE WITH THESE STORMS. THIS LINE WILL MOVE THROUGH THE ATLANTA METROPOLITIAN AREA BETWEEN 230 AM AND 400 AM.
Special weather statement, Apr 15, 2:10 AM EDT, 1 hour 6 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ATHENS GA 215 AM EDT WED APR 15 1987 ...STRONG THUNDERSTORMS MOVING INTO NORTHEAST GEORGIA... A LINE OF STRONG THUNDERSTORMS EXTENDED FROM BLUE RIDGE IN EXTREME NORTH GEORGIA SOUTHWEST TO A POINT JUST WEST OF ATLANTA. THIS LINE OF THUNDERSTORMS WAS MOVING EAST AT 20 MILES AN HOUR AND WILL ENTER THE COUNTIES OF UNION AND LUMPKIN IN NORTHEAST GEORGIA BY 230 AM EDT. STRONG GUSTY WINDS..BRIEF HEAVY DOWNPOURS..DANGEROUS LIGHTNING ..AND SMALL HAIL POSSIBLE WITH THESE STORMS.
The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 14, 10:13 PM EDT | Severe Thunderstorm Warning | FFC | Walker | 47 min |
| Apr 14, 10:33 PM EDT | Severe Thunderstorm Warning | FFC | Catoosa | 27 min |
| Apr 15, 3:53 AM EDT | Tornado Warning | FFC | Habersham | 67 min |
| Apr 15, 4:45 AM EDT | Severe Thunderstorm Warning | FFC | Clarke, Madison | 30 min |
| Apr 15, 4:45 AM EDT | Severe Thunderstorm Warning | FFC | Oconee | 30 min |
| Apr 15, 6:15 AM EDT | Severe Thunderstorm Warning | FFC | Wilkinson | 30 min |
Nearby
Severe Thunderstorm Warnings in Georgia, 1987Every severe thunderstorm warning in 1987
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.