Alert archive / North Carolina / Severe Thunderstorm Warnings in 1999
Severe Thunderstorm Warning 99, NWS Greenville-Spartanburg, SC
NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Jul 7, 1999, 3:10 PM EDT for Burke County, North Carolina. It was in force for 30 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 7, 1999, 3:10 PM EDT (19:10 UTC)
- Expired
- Jul 7, 1999, 3:40 PM EDT
- In force
- 30 min
- Issued by
- NWS Greenville-Spartanburg, SC
- Area
- Whole counties
County Burke County, NC
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 7, 3:30 PM EDT | Thunderstorm Wind 50 | Morganton, NC |
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.
The nearest sounding before it
Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 7.2 hours before the alert went out and 167 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
- 683 J/kg
- Mixed-layer CIN
- -124 J/kg
- Mixed-layer LCL
- 1339 m above ground
- 0-6 km bulk shear
- 3 kt
- 0-1 km storm-relative helicity
- 8 m²/s²
- 0-3 km storm-relative helicity
- 53 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.
NWS Greenville-Spartanburg, SC wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 7, 2:04 PM EDT, 1 hour 6 minutes earlier.
Area forecast discussion, Jul 7, 2:04 PM EDT, 1 hour 6 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 204 PM EDT WED JUL 7 1999 ATMOS HAS BECOME VERY UNSTABLE THIS AFTERNOON. GOOD LOW LEVEL CONVERGENCE ATTM ALONG MTNS/FOOTHILLS AND ALONG SFC BOUNDARY. STRONG TO SVR STORMS ARE QUICKLY DEVELOPING AND INCREASING IN COVERAGE. EXPECT COVERAGE TO INCREASE ALL AREAS AS OUTFLOWS FROM CURRENT STORMS AND SAGGING SFC BOUNDARY ARE THROWN INTO THE MIX. STORMS ARE SLOW MOVING SO FLASH FLOODING COULD ALSO BE A PROBLEM. SHOULD CONTINUE THROUGH THE EVENING SO WILL GO WITH LIKELY POPS TONIGHT AND MENTION HEAVY RAIN. MAY ALSO MENTION POSSIBLE SVR. SFC FNT PUSHES SOUTH OF THE AREA THU AND ATMOS DRIES. ALSO LACK OF UPR SUPPORT SHOULD PRECLUDE CONVECTION. TEMPS WILL EVEN BE A DEGREE OR TWO COOLER. HOWEVER A RETURN TO MID 90S FRI. WILL KEEP FCST DRY UNTIL THE EXTENDED PERIOD. AVL 65/88/62/89 6101 CLT 70/92/68/95 6101 GSP 69/92/67/94 6101 .GSP...NONE. RWH
In the hours before
Special weather statement, Jul 7, 11:48 AM EDT, 3 hours 22 minutes before
GAZ010-017-018-026-028-029-NCZ033>037-048>059-062>072-082-SCZ001>014- 019-072200- SEVERE WEATHER OUTLOOK NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 1148 AM EDT WED JUL 7 1999 ...STRONG THUNDERSTORMS POSSIBLE ACROSS THE WESTERN CAROLINAS AND EXTREME NORTHEAST GEORGIA... STRONG THUNDERSTORMS ARE EXPECTED TO DEVELOP AGAIN THIS AFTERNOON ACROSS THE WESTERN CAROLINAS AND NORTHEAST GEORGIA. THE ATMOSPHERE ACROSS THE REGION HAS RECOVERED FROM THE ROUND OF THUNDERSTORMS ON TUESDAY AND IS ONCE AGAIN MODERATELY UNSTABLE. FURTHER...NUMEROUS BOUNDARIES REMAIN FROM YESTERDAY WHICH WILL LIKELY ACT AS A FOCUS FOR THUNDERSTORM DEVELOPMENT TODAY. ISOLATED SEVERE THUNDERSTORMS ARE POSSIBLE THIS AFTERNOON AND EVENING WITH THE MAIN THREAT BEING DOWNBURST WIND AND HAIL. ADDITIONALLY...LIGHT WIND THROUGH A DEEP LAYER AND ABUNDANT MOISTURE IN THE LOW LEVELS OF THE ATMOSPHERE WILL CONTRIBUTE TO SLOW MOVING STORMS CAPABLE OF PRODUCING HEAVY RAIN AND POSSIBLE FLOODING. SPOTTERS SHOULD KEEP ABREAST OF THE LATEST CONDITIONS AND BE PREPARED TO ACTIVATE SPOTTER NETS THIS AFTERNOON AND EVENING. STAY TUNED TO NOAA WEATHER RADIO FOR LATER STATEMENTS. DELGADO
Special weather statement, Jul 7, 11:48 AM EDT, 3 hours 22 minutes before
GAZ010-017-018-026-028-029-NCZ033>037-048>059-062>072-082-SCZ001>014- 019-072200- SEVERE WEATHER OUTLOOK NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 1148 AM EDT WED JUL 7 1999 ...STRONG THUNDERSTORMS POSSIBLE ACROSS THE WESTERN CAROLINAS AND EXTREME NORTHEAST GEORGIA... STRONG THUNDERSTORMS ARE EXPECTED TO DEVELOP AGAIN THIS AFTERNOON ACROSS THE WESTERN CAROLINAS AND NORTHEAST GEORGIA. THE ATMOSPHERE ACROSS THE REGION HAS RECOVERED FROM THE ROUND OF THUNDERSTORMS ON TUESDAY AND IS ONCE AGAIN MODERATELY UNSTABLE. FURTHER...NUMEROUS BOUNDARIES REMAIN FROM YESTERDAY WHICH WILL LIKELY ACT AS A FOCUS FOR THUNDERSTORM DEVELOPMENT TODAY. ISOLATED SEVERE THUNDERSTORMS ARE POSSIBLE THIS AFTERNOON AND EVENING WITH THE MAIN THREAT BEING DOWNBURST WIND AND HAIL. ADDITIONALLY...LIGHT WIND THROUGH A DEEP LAYER AND ABUNDANT MOISTURE IN THE LOW LEVELS OF THE ATMOSPHERE WILL CONTRIBUTE TO SLOW MOVING STORMS CAPABLE OF PRODUCING HEAVY RAIN AND POSSIBLE FLOODING. SPOTTERS SHOULD KEEP ABREAST OF THE LATEST CONDITIONS AND BE PREPARED TO ACTIVATE SPOTTER NETS THIS AFTERNOON AND EVENING. STAY TUNED TO NOAA WEATHER RADIO FOR LATER STATEMENTS. DELGADO
The office that day
Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 6, 11:46 PM EDT | Flash Flood Warning | GSP | Madison | 4 hr |
| Jul 7, 12:56 PM EDT | Severe Thunderstorm Warning | GSP | Avery | 34 min |
| Jul 7, 1:34 PM EDT | Severe Thunderstorm Warning | GSP | Rutherford | 36 min |
| Jul 7, 2:34 PM EDT | Severe Thunderstorm Warning | GSP | Caldwell | 31 min |
| Jul 7, 2:39 PM EDT | Severe Thunderstorm Warning | GSP | Burke | 31 min |
| Jul 7, 3:10 PM EDT | Severe Thunderstorm Warning | GSP | Alexander, Caldwell | 30 min |
| Jul 7, 3:40 PM EDT | Flash Flood Warning | GSP | Burke, Caldwell | 3 hr |
| Jul 7, 3:41 PM EDT | Severe Thunderstorm Warning | GSP | Davie | 34 min |
Nearby
Severe Thunderstorm Warnings in North Carolina, 1999Every severe thunderstorm warning in 1999
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.