Alert archive / North Carolina / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 89, NWS Greenville-Spartanburg, SC
NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Jul 10, 1990, 3:00 PM EDT for Polk County, North Carolina. It was in force for 60 min.
The area
The counties it named.
The facts
- Issued
- Jul 10, 1990, 3:00 PM EDT (19:00 UTC)
- Expired
- Jul 10, 1990, 4:00 PM EDT
- In force
- 60 min
- Issued by
- NWS Greenville-Spartanburg, SC
- Area
- Whole counties
County Polk 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, 7.0 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
- 794 J/kg
- Mixed-layer CIN
- -134 J/kg
- Mixed-layer LCL
- 1303 m above ground
- 0-6 km bulk shear
- 6 kt
- 0-1 km storm-relative helicity
- -54 m²/s²
- 0-3 km storm-relative helicity
- -15 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 KAVL 101900
SVRAVL
NCC149-102000-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ASHEVILLE NC
300 PM EDT TUE JUL 10 1990
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM
WARNING EFFECTIVE UNTIL 400 PM EDT FOR PEOPLE IN THE FOLLOWING
COUNTY
IN THE STATE OF NORTH CAROLINA
POLK
AT 300 PM WEATHER SERVICE RADAR SHOWED A SEVERE THUNDERSTORM NEAR
TRYON IN POLK COUNTY DRIFTING SLOWLY SOUTH.
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 PASSEoD.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 10, 1:02 PM EDT, 1 hour 58 minutes before
NCZ009-010-011-012-101810- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ASHEVILLE NC 110 PM EDT TUE JUL 10 1990 AT 1PM EDT NATIONAL WEATHER RADAR SHOWED A FEW SHOWERS AND THUNDERSTORMS DEVELOPING OVER WESTERN NORTH CAROLINA. THE STRONGEST THUNDERSTORMS WAS NORTH OF BLACK MOUNTAINS...OTHERS WERE IN TRANSYLVANIA AND HAYWOOD COUNTIES. LITTLE MOVEMENT WAS INDICATED. SOME OF THE SHOWERS MAY DEVELOP INTO QUITE STRONG THUNDERSTORMS BEFORE THEY TAPER OFF LATER THIS EVENING. THE STRONGER STORMS WILL BE CAPABLE OF PRODUCING STRONG GUSTY WINDS..HEAVY RAIN AND HAIL AS WELL AS DANGEROUS LIGHTNING. MOUNTAIN RESIDENTS SHOULD KEEP AN EYE ON THE SKY THIS AFTERNOON AND BE READY TO SEEK SHELTER IF THREATENING WEATHER DEVELOPS. REU
Special weather statement, Jul 10, 2:03 PM EDT, 57 minutes before
NCZ010-012-101900- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ASHEVILLE NC 204 PM EDT TUE JUL 10 1990 AT 155 PM WEATHER SERVICE RADAR SHOWED VERY STRONG THUNDERSTORMS IN HAYWOOD..BUNCOMBE AND TRANSYLVANIA COUNTIES OF WESERN NORTH CAROLINA. THE STRONGEST STORM WAS NEAR THE BUNCOMBE HAYWOOD COUNTY LINE SOUTH OF CANTON. THEY WERE MOVING VERY LITTLE..POSSIBLY DRIFTING SLOWLY EAST. THESE STORMS CONTAIN A LOT OF DANGEROUS LIGHTNING..REMAIN INSIDE OR MOVE INSIDE A STRONG BUILDING IF THREATENING WEATHER APPROACHES YOUR AREA. THE STORMS MAY ALSO CONTAIN VERY HEAVY RAIN STRONG GUSTY WINDS AND HAIL. BECAUSE OF THEIR SLOW MOVEMENT FLOODING OF STREETS AND LOW LYING AREAS IS POSSIBLE. TH,E SHOWERS AND THUNDERSTORMS WILL CONTINUE IN WESTERN NORTH CAROLINA FOR THE REST OF THE AFTERNOON AND INTO THE EARLY EVENING.
The office that day
Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 10, 4:32 PM EDT | Severe Thunderstorm Warning | GSP | Catawba | 43 min |
| Jul 10, 5:56 PM EDT | Severe Thunderstorm Warning | GSP | Mecklenburg | 49 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.