Alert archive / South Carolina / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 37, NWS Atlanta, GA
NWS Atlanta, GA issued this severe thunderstorm warning at Jul 6, 1987, 3:35 PM EDT for Allendale County, South Carolina. It was in force for 55 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
- Jul 6, 1987, 3:35 PM EDT (19:35 UTC)
- Expired
- Jul 6, 1987, 4:30 PM EDT
- In force
- 55 min
- Issued by
- NWS Atlanta, GA
- Area
- Whole counties
County Allendale County, SC
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 |
|---|---|---|---|
| Jul 6, 3:45 PM EDT | Thunderstorm Wind 0 | Allendale, SC |
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, 7.6 hours before the alert went out and 209 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
- NaN m above ground
- 0-6 km bulk shear
- 4 kt
- 0-1 km storm-relative helicity
- -42 m²/s²
- 0-3 km storm-relative helicity
- -6 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 6, 3:10 PM EDT, 25 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ATLANTA GA 310 PM EDT MON JUL 6 1987 ...STRONG THUNDERSTORMS OVER EXTREME NORTH GEORGIA... AT 305 PM RADAR INDICATED A STRONG THUNDERSTORM ALONG THE WHITFIELD MURRAY LINE IN NORTHWEST GEORGIA. THIS STORM WAS PART OF A LARGER CONCENTRATION OF SHOWERS AND THUNDERSTORMS EXTENDING FROM CHATTANOOGA SOUTHWARD INTO NORTHWEST GEORGIA INTO GORDON COUNTY. THE STORM APPROACHING CHATSWORTH MARKED THE EASTWARD EXTENT OF THIS AREA. SMALL HAIL WAS REPORTED AT CHATTANOOGA IN ASSOCIATED STORMS. PERSONS IN NORTHWEST GEORGIA SHOULD BE ALERT FOR STRONG GUSTY WINDS...FREQUENT LIGHTNING...VERY HEAVY RAIN..AND POSSIBLE HAIL AS THESE STORMS CONTINUE OVER THE NEXT SEVERAL HOURS. HEAVY RAIN COULD CAUSE PONDING ON ROADWAYS AND PRODUCE BRIEF FLOODING IN UNDERPASSES AND LOW LYING AREAS. STAY TUNED TO RADIO..TELEVISION..OR NOAA WEATHER RADIO FOR ANY UPDATES ON THESE STORMS IN EXTREME NORTH AND NORTHWEST GEORGIA
Special weather statement, Jul 6, 3:32 PM EDT, 3 minutes before
TTAASP KAHN 061932 SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ATHENS GA 330PM EDT MON JUL 5 1987 AT 330 PM EDT THUNDERSTORMS FORMING IN UNION , TOWNS, AND RABUN COUNTIES OF NORTHEAST GEORGIA... THUNDERSTORMS EXPECTED TO CONTINUE INCREASING DURING THE AFTERNOON HOURS AND LAST INTO THE EVENING HOURS.. SOME OF THE LARGER THUNDERSTORMS WILL HAVE VERY HEAVY DOWNPOURS... DANGEROUS CLOUD TO GROUND LIGHTNING AND POSSIBLY GUSTY WINDS AND SMALL HAIL ... STORMS WILL BE MOVING TOWARD THE SOUTHEAST AND SPREADING INTO OTHER COUNTIES OF NORTHEAST GEORGIA. SEEK SHELTER IF A STORM APPROACHES YOUR AREA.....
The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 6, 4:59 PM EDT | Severe Thunderstorm Warning | FFC | Hall, Lumpkin, White | 61 min |
| Jul 6, 6:19 PM EDT | Severe Thunderstorm Warning | FFC | DeKalb, Fulton | 41 min |
| Jul 6, 6:44 PM EDT | Severe Thunderstorm Warning | FFC | Morgan, Newton, Walton | 61 min |
| Jul 6, 7:00 PM EDT | Severe Thunderstorm Warning | FFC | DeKalb, Fulton | 45 min |
Nearby
Severe Thunderstorm Warnings in South Carolina, 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.