Alert archive / South Carolina / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 278, NWS Atlanta, GA
NWS Atlanta, GA issued this severe thunderstorm warning at Aug 10, 1990, 1:38 AM EDT for Aiken County, South Carolina. It was in force for 52 min.
The area
The counties it named.
The facts
- Issued
- Aug 10, 1990, 1:38 AM EDT (05:38 UTC)
- Expired
- Aug 10, 1990, 2:30 AM EDT
- In force
- 52 min
- Issued by
- NWS Atlanta, GA
- Area
- Whole counties
County Aiken County, SC
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 00:00Z, 5.6 hours before the alert went out and 160 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
- 1510 J/kg
- Mixed-layer CIN
- -4 J/kg
- Mixed-layer LCL
- 1228 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 3 m²/s²
- 0-3 km storm-relative helicity
- 31 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 0.8
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, Aug 9, 10:24 PM EDT, 3 hours 14 minutes before
GAZ001-GAZ002-GAZ003-100400- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ATLANTA GA 1025 PM EDT THU AUG 9 1990 AT 1020 PM EDT THUNDERSTORMS CONTINUED SOUTH OF CANTON AND NORTH OF ROSWELL ACROSS SOUTHERN CHEROKEE AND NORTHERN FULTON COUNTIES. THESE STORMS WERE PRODUCING VERY HEAVY RAINFALL AND MAY CAUSE SOME FLOODING OF SMALL STREAMS...ROADS...AND LOW LYING AREAS. ALSO THUNDERSTORMS WERE RUMBLING BETWEEN ROME AND CHATSWORTH PRODUCING HEAVY RAIN...AND POSSIBLY SOME HAIL AND STRONG GUSTY WINDS. THUNDERSTORMS WERE MOVING SLOWLY AND ERRATICALLY. PEOPLE IN THE AREAS MENTIONED SHOULD BE ESPECIALLY ALERT TO THE POSSIBILITY OF LOCALIZED FLOODING. PEOPLE IN OTHER AREAS OF NORTH GEORGIA B+ETWEEN ATLANTA AND THE NORTHERN BORDER SHOULD BE PREPARED FOR THE POSSIBILITY THUNDERSTORMS AND HEAVY RAIN OVER THE NEXT FEW HOURS.
Local storm report, Aug 9, 11:00 PM EDT, 2 hours 38 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ATLANTA, GA
1100 PM EDT THU AUG 9 1990
COUNTY...... 5 MILES NORTH OF ROME IN FLOYD AT MT. BERRY
SOURCE...... FLOYD COUNTY 911 DISPATCH
TIME........ 1040-1045VPM
TYPE STORM.. SEVERE THUNDERSTORM
MARBLE SIZE HAIL
STRONG GUSTY WIND. NO DAMAGE REPORTED.
INJURIES... NONE REPORTED.Special weather statement, Aug 9, 11:38 PM EDT, 2 hours before
GAZ001-GAZ003-100500- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ATLANTA GA 1135 PM EDT THU AUG 9 1990 AT 1130 PM EDT THUNDERSTORMS CONTINUED IN PARTS OF NORTHWEST GEORGIA. RADAR SHOWED THE STRONGEST STORMS FROM NEAR THE ALABAMA BORDER WEST OF ROME TO WEST OF DALLAS IN PAULDING COUNTY TO BARTOW COUNTY WEST OF CARTERSVILLE. SOME OF THE STORMS WERE DROPPING HAIL AND TORRENTIAL RAIN. THERE WAS ALSO A LOT OF LIGHTNING AND SOME STRONG GUSTY WINDS. WGTA RADIO IN SUMMERVILLE REPORTED DIME SIZED HAIL IN THE LYERLY AREA OF CHATOOGA COUNTY. SOME TREES WERE DOWN IN PARTS OF THE COUNTY. THESE THUNDERSTORMS HAVE A HISTORY OF PRODUCING HAIL AS THEY MOVED SOUTH OUT OF TENNESSEE AND ACROSS EXwTREME NORTH GEORGIA EARLIER THIS EVENING. PEOPLE IN NORTHWEST GEORGIA SHOULD REMAIN ALERT AS THESE STORMS CONTINUE TO DRIFT SOUTH.
Special weather statement, Aug 9, 11:54 PM EDT, 1 hour 44 minutes before
GAZ004-100200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ATHENS GA 1153 PM EDT THU AUG 9 1990 AT 1150 PM THE SEVERE THUNDERSTORM WARNING FOR HALL COUNTY IN NORTHEAST GEORGIA HAS BEEN CANCELLED. THE ATHENS RADAR CONTINUES TO INDICATE SEVERAL THUNDERSTORMS ACROSS NORTHEAST GEORGIA. THE STORMS WERE MOVING SLOWLY EAST. PERSONS IN THE VICINITY OF THUNDERSTORMS SHOULD SEEK INSIDE SHELTER IF POSSIBLE. ALSO DUE TO THE SLOW MOVEMENT OF THESE THUNDERSTORMS FLOODING CAN AND PROBABLY WILL RESULT. MOTORISTS ARE URGED TO AVOID DRIVING THROUGH WATER OF UNKNOWN DEPTHS. KEEP TUNED TO NOAA WEATHER RADIO FOR THE LATEST WEATHER INFORMATION.
Local storm report, Aug 10, 12:23 AM EDT, 1 hour 15 minutes before
LOCAL STORM REPORT NATIONAL WEATHER SERVICE ATHENS GA 1220 AM EDT FRI AUG 10 1990 COUNTY........ HALL SOURCE........ STATE PATROL GAINESVILLE TIME.......... 1130 PM EDT THU AUG 9 1990 LOCATION...... GAINESVILLE TYPE STORM.... THUNDERSTORM HAIL.......... UNK DAMAGE........ POWER OUTAGES AND STRONG WINDS INJURIES...... NONE KNOWN
Special weather statement, Aug 10, 12:38 AM EDT, 1 hour before
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</html>The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 9, 8:30 PM EDT | Severe Thunderstorm Warning | FFC | Whitfield | 60 min |
| Aug 9, 8:45 PM EDT | Severe Thunderstorm Warning | FFC | Cherokee | 45 min |
| Aug 9, 8:57 PM EDT | Severe Thunderstorm Warning | FFC | Walker | 63 min |
| Aug 9, 9:51 PM EDT | Severe Thunderstorm Warning | FFC | Catoosa | 69 min |
| Aug 9, 10:43 PM EDT | Severe Thunderstorm Warning | FFC | Floyd | 47 min |
| Aug 9, 11:13 PM EDT | Severe Thunderstorm Warning | FFC | Hall | 40 min |
| Aug 9, 11:57 PM EDT | Severe Thunderstorm Warning | FFC | Paulding | 33 min |
| Aug 10, 12:31 AM EDT | Severe Thunderstorm Warning | FFC | Carroll, Douglas | 29 min |
| Aug 9, 8:18 PM EDT | Severe Thunderstorm Warning | FFC | Hamilton | 57 min |
| Aug 10, 2:23 AM EDT | Severe Thunderstorm Warning | FFC | Edgefield | 67 min |
Nearby
Severe Thunderstorm Warnings in South Carolina, 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.