Alert archive / Georgia / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 2, NWS Atlanta, GA
NWS Atlanta, GA issued this severe thunderstorm warning at Apr 14, 1987, 10:13 PM EDT for Walker County, Georgia; Hamilton County, Tennessee. It was in force for 47 min. 2 reports 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 14, 1987, 10:13 PM EDT (02:13 UTC)
- Expired
- Apr 14, 1987, 11:00 PM EDT
- In force
- 47 min
- Issued by
- NWS Atlanta, GA
- Area
- Whole counties
Counties Walker County, GA, Hamilton County, TN
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 14, 10:35 PM EDT | Hail 0.75 | Walker, GA | |
| Apr 14, 10:55 PM EDT | Hail 0.75 | Hamilton, TN |
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
Nashville Metro, TN (KBNA), launched 00:00Z, 2.2 hours before the alert went out and 180 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1139 m above ground
- 0-6 km bulk shear
- 73 kt
- 0-1 km storm-relative helicity
- -216 m²/s²
- 0-3 km storm-relative helicity
- -235 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KCHA 150223 COR
SVRCHA
GAC295-TNC065-150300-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING CORRECTION ...CORRECT MOVEMENT...
NATIONAL WEATHER SERVICE CHATTANOOGA TN
1013 PM EDT TUE APR 14 1987
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING
EFFECTIVE UNTIL 1100 PM EDT FOR PEOPLE IN THE FOLLOWING COUNTIES...
IN NORTHWEST GEORGIA
...WALKER
IN SOUTHEAST TENNESSEE
...HAMILTON
AT 1012PM EDT THE CHATTANOOGA WEATHER RADAR INDICATED SEVERE
THUNDERSTORMS JUST TO THE SOUTHWEST AND NORTH OF CHATTANOGA TENNESSE.
A SEVERE THUNDERSTORM WAS ALSO INDICATED IN SOUTHWEST WALKER COUNTY
IN NORTHWEST GEORGIA OR JUST TO THE SOUTHWEST OF LAFAYETTE.
THE THUNDERSTORMS WERE MOVING TOWARD THE NORTHEAST AT 25 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 WYOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO
DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 14, 10:33 PM EDT | Severe Thunderstorm Warning | FFC | Catoosa | 27 min |
| Apr 15, 3:16 AM EDT | Severe Thunderstorm Warning | FFC | Dawson, Hall, Lumpkin | 59 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 |
| Apr 14, 9:02 PM EDT | Severe Thunderstorm Warning | FFC | Hamilton, Marion, Sequatchie | 58 min |
Nearby
Severe Thunderstorm Warnings in Georgia, 1987Severe Thunderstorm Warnings in Tennessee, 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.