Alert archive / North Carolina / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 92, NWS Greenville-Spartanburg, SC
NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Aug 9, 1990, 4:20 PM EDT for Cherokee County, North Carolina. It was in force for 55 min.
The area
The counties it named.
The facts
- Issued
- Aug 9, 1990, 4:20 PM EDT (20:20 UTC)
- Expired
- Aug 9, 1990, 5:15 PM EDT
- In force
- 55 min
- Issued by
- NWS Greenville-Spartanburg, SC
- Area
- Whole counties
County Cherokee County, NC
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, 8.3 hours before the alert went out and 149 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
- 561 J/kg
- Mixed-layer CIN
- -40 J/kg
- Mixed-layer LCL
- 658 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 11 m²/s²
- 0-3 km storm-relative helicity
- 87 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KAVL 092020 RRA
SVRAVL
NCC039-092115-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM AND FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ASHEVILLE NC
420 PM EDT THU AUG 9 1990
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM
AND FLASH FLOOD WARNING EFFECTIVE UNTIL 515 PM EDT FOR PEOPLE
IN THE FOLLOWING COUNTY
IN THE STATE OF NORTH CAROLINA
SOUTH CENTRAL CHEROKEE
AT 410 PM EDT A SEVERE THUNDERSTORM WAS INDICATED IN CHEROKEE
COUNTY BETWEEN MURPHY AND HAYESVILLE IN WESTHERN NORTH CAROLINA.
THIS STORM WAS MOVING SLOWLY NORTHEAST
A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA. REMEMBER,
SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH
LITTLE OF NO ADVANCE WARNING SO BE ON THE LOOKOUT.
WHEN THUNDERSTORMS ARE OCCURRING, PEOPLE SHOULD MOVE INSIDE A STRONG
BUILDING. DO NOT STAND BY WINDOWS. DON`T USE TELEPHONES OR
ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORM HAS
PASSED. HEAVY RAINS FLOOD ROADS QUICKLY SO DON`T DRIVE INTO AREAS
WHERE WATER COVERS THE ROAD.
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 AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.
THE NATIONAL WEATHER SERVICE IS MONITORING THIS SITUATION VERY
CAREFULLY AND WILL ISSUE WARNING FOR FLOODING IF NECESSARY
USSERYWhat 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, 3:25 PM EDT, 55 minutes before
NCZ-010-011-092110- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ASHEVILLE NC 325 PM EDT THU AUG 9 1990 ...SHOWERS AND THUNDERSTORMS DEVELOPING OVER THE MOUNTAINS OF WESTERN NORTH CAROLINA... AAT 320 PM WEATHER SERVICE RADAR SHOWED SHOWERS AND THUNDERSTORMS ALONG THE NORTH CAROLINA TENNESSEE BORDER FROM HOT SPRINGS TO MURPHY. THE HEAVIEST STORMS WERE IN GRAHAM AND CHEROKEE COUNTIES BETWEEN ROBBINSVILLE AND MURPHY. THEY WERE MOVING SLOWLY NORTHEAST. THERE IS A POTENTIAL FOR VERY STRONG THUNDERSTORMS IN WESTERN NORTH CAOLINA THIS AFTERNOON THAT COULD PRODUCE STRONG GUSTY WINDS..DANGEROUS LIGHTNING AND HEAVY RAIN. BECAUSE OF THE SLOW MOVEMENT OF THE STORMS THE HEAVY RAIN COULD CAUSE SOME MINOR FLOODING. PERSONS ALONG SMALL STREAMS OR IN AREAS SUBJECT TO FLASH FLOODING SHOULD REMAIN ALERT DURING PERIODS OF HEAVY RAIN THIS AFTERNOON. BE PREPARED TO MOVE TO HIGHER @GROUND IF FLOODING SHOULD DEVELOP. IF YOU SEE LIGHTNING OR HEAR THUNDER..MOVE INSIDE A STRONG BUILDING UNTIL THE STORM HAS PASSED. HM
The office that day
Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 9, 4:20 PM EDT | Flash Flood Warning | GSP | Cherokee | 55 min |
Nearby
Severe Thunderstorm Warnings in North 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.