Alert archive / North Carolina / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 38, NWS Greenville-Spartanburg, SC
NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at May 1, 1990, 5:02 PM EDT for Avery County, North Carolina. It was in force for 58 min.
The area
The counties it named.
The facts
- Issued
- May 1, 1990, 5:02 PM EDT (21:02 UTC)
- Expired
- May 1, 1990, 6:00 PM EDT
- In force
- 58 min
- Issued by
- NWS Greenville-Spartanburg, SC
- Area
- Whole counties
County Avery 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
Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 9.0 hours before the alert went out and 182 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
- 564 J/kg
- Mixed-layer CIN
- -160 J/kg
- Mixed-layer LCL
- 1024 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 50 m²/s²
- 0-3 km storm-relative helicity
- 57 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.6
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, May 1, 12:00 PM EDT, 5 hours 2 minutes before
SCZ001>004-011800 SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GREER SC 1159 AM EDT TUE MAY 1 1990 ...HOT SUMMER LIKE WEATHER SETTLES OVER THE UPSTATE... TEMPERATURES WERE CLIMBING SHARPLY DURING THE MORNING HOURS IN NORTHWESTERN SOUTH CAROLINA...AND RECORD HIGH TEMPERATURES ARE POSSIBLE THIS AFTERNOON. AT THE GREENVILLE SPARTANBURG AIRPORT THE RECORD HIGH FOR THE 1ST DAY OF MAY IS 89 DEGREES ...AND THE FORECAST CALLS FOR A HIGH TODAY IN THE LOW 90S. THE ATMOSPHERE WILL BECOME VERY UNSTABLE WITH THE AFTERNOON HEATING...THUS PRODUCING SCATTERED THUNDERSTORMS. A FEW UPSTATE COMMUNITIES MAY EXPERIENCE A POSSIBLE SEVERE THUNDERSTORM... WITH STRONG GUSTY WIND...AND HAIL...LATER THIS A/FTERNOON OR EVENING. YOU MAY WISH TO CHECK NOAA WEATHER RADIO OFTEN TODAY FOR THE LATEST STATEMENTS OR BULLETINS. MUSGROVE
Special weather statement, May 1, 3:38 PM EDT, 1 hour 24 minutes before
NCZ007-009-010-011-012-012230- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ASHEVILLE NC 345 PM EDT TUE MAY 01 1990 ...A SEVERE THUNDERSTORM WATCH IN EFFECT FOR MOST OF WESTERN NORTH CAROLINA UNTIL 9 PM... AT 330 PM NATIONAL WEATHER SERVICE RADAR SHOWS A LINE OF THUNDERSTORMS IN EASTERN TENNESSEE JUST WEST OF KNOXVILLE MOVING TOWARD THE EAST AT ABOUT 40 MILES AN HOUR. THESE STORMS ARE EXPECTED TO MOVE INTO EXTREME WESTERN NORTH CAROLINA LATER THIS AFTERNOON AND EVENING. SOME OF THE HEAVIER STORMS MAY PRODUCE HAIL AND DAMAGING WINDS. IF YOU ARE IN THE PATH OF ONE OF THESE STORMS..TAKE SLELTER UNTIL IT PASSES. STAY TUNED TO THE NATIONAL WEATHER SERVICE RADIO FOR THE LATEST STATEMENTS AND WARNINGS. YOU WILL HEAR IT FIRST ON THE NATIONAL WEATHER SERVICE RADIO. THE NEXT STATEMENT WILL BE ISSUED AROUND 6 PM. OS
The office that day
Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 1, 5:14 PM EDT | Severe Thunderstorm Warning | GSP | Graham, Swain | 61 min |
| May 1, 5:24 PM EDT | Severe Thunderstorm Warning | GSP | Polk, Rutherford | 66 min |
| May 1, 5:32 PM EDT | Severe Thunderstorm Warning | GSP | Cherokee | 58 min |
| May 1, 6:18 PM EDT | Severe Thunderstorm Warning | GSP | Caldwell | 57 min |
| May 1, 6:45 PM EDT | Severe Thunderstorm Warning | GSP | Polk, Rutherford | 60 min |
| May 1, 6:51 PM EDT | Severe Thunderstorm Warning | GSP | Burke | 69 min |
| May 1, 7:06 PM EDT | Severe Thunderstorm Warning | GSP | Gaston | 69 min |
| May 1, 7:11 PM EDT | Severe Thunderstorm Warning | GSP | Cherokee, Spartanburg | 64 min |
| May 1, 7:37 PM EDT | Severe Thunderstorm Warning | GSP | Anderson, Pickens | 38 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.