Alert archive / North Carolina / Severe Thunderstorm Warnings in 1999
Severe Thunderstorm Warning 110, NWS Greenville-Spartanburg, SC
NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Jul 24, 1999, 4:22 PM EDT for Buncombe County, North Carolina. It was in force for 48 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 24, 1999, 4:22 PM EDT (20:22 UTC)
- Expired
- Jul 24, 1999, 5:10 PM EDT
- In force
- 48 min
- Issued by
- NWS Greenville-Spartanburg, SC
- Area
- Whole counties
County Buncombe County, NC
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 24, 4:37 PM EDT | Thunderstorm Wind 50 | Weaverville, 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, 8.4 hours before the alert went out and 243 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
- 841 J/kg
- Mixed-layer CIN
- -111 J/kg
- Mixed-layer LCL
- 1567 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- -4 m²/s²
- 0-3 km storm-relative helicity
- 19 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 24, 2:12 PM EDT, 2 hours 10 minutes earlier.
Area forecast discussion, Jul 24, 2:12 PM EDT, 2 hours 10 minutes before
AREA FORECAST DISCUSSION...UPDATED NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 212 PM EDT SAT JUL 24 1999 CLOSED LOW TO FORM OVER QUEBEC AND CUTOFF OVER ME NEXT 24 HOURS. SHORTWAVE SHOWN BY RUC TO REACH MOUNTAINS AT 21Z WILL CROSS AREA SLOWLY OVERNIGHT. A SECOND...WEAKER SHORTWAVE SHOWN BY ETA TO REACH N TIER SUN AFTERNOON...MOVING INTO SC SUN EVENING. NGM/AVN MUCH WEAKER WITH SECOND FEATURE...AND NGM MUCH FASTER...ENDING PVA EARLY SUN EVENING. MODELS BRING TROUGH OR WEAK FRONT DOWN EASTERN SEABOARD TONIGHT. THIS FEATURE BECOMES STATIONARY OVER AREA INTO MON...WITH MOST THICKNESS PACKING N AND E. NGM TROUGH STRONGER AND OVER SC...ETA TROUGH WEAKER AND OVER NC. AVN COMPROMISES. SURFACE RIDGE BEHIND BOUNDARY FAR ENOUGH W AND AT LOW ENOUGH LATITUDE THAT SURFACE FLOW NOT LIKELY TO BE NE...BUT RATHER W-NW. MID/UPPER LEVELS TO DRY OUT SUN MORNING. DOWNSLOPE COMPONENT TO INHIBIT CONVECTION SUN. NVA...SUBSIDENCE AND CONTINUED DOWNSLOPE MON TO WARM TEMPERATURES AS DEW POINTS LOWER. FWC MAX TEMPS VERY HIGH AND HARD TO BUY...EVEN WITH DOWNSLOPE. WILL COMPROMISE BETWEEN FWC AND FAN. DEW POINTS DICTATE MINIMUM TEMPERATURES. UPDATE: RADAR COVERAGE FILLING IN AND STILL HAVE 6-8 HOURS TO GET BACK EDGE PAST MOUNTAINS. WILL INCREASE POPS TONIGHT TO CATEGORICAL NC AND LIKELY GA/SC. AVL 67/91/64/91 +200 CLT 71/96/69/97 +100 GSP 72/97/70/98 6110 .GSP...NONE. JAT
In the hours before
Special weather statement, Jul 24, 10:32 AM EDT, 5 hours 50 minutes before
GAZ010-017-018-026-028-029-NCZ033>037-048>059-062>072-082-SCZ001>014- 019-242100- SEVERE WEATHER OUTLOOK...CORRECTED FOR FORMAT NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 1032 AM EDT SAT JUL 24 1999 ...STRONG TO SEVERE THUNDERSTORMS POSSIBLE THIS AFTERNOON... A MOIST AND UNSTABLE AIRMASS IS IN PLACE ACROSS THE WESTERN CAROLINAS AND NORTHEAST GEORGIA TODAY. AN UPPER LEVEL DISTURBANCE WILL INTERACT WITH THIS AIRMASS...TRIGGERING THUNDERSTORM DEVELOPMENT. THUNDERSTORMS ARE EXPECTED TO BEGIN DEVELOPING ACROSS THE MOUNTAINS EARLY THIS AFTERNOON...AND MOVE SOUTHEAST. PIEDMONT AND FOOTHILL SECTIONS WILL BE AFFECTED BY THUNDERSTORMS BY MID TO LATE AFTERNOON. ANY OF THESE THUNDERSTORMS WILL HAVE THE POTENTIAL TO PRODUCE GUSTY WINDS OF 35 TO 45 MPH...SMALL HAIL...AND HEAVY DOWNPOURS. A FEW STORMS COULD PRODUCE DAMAGING WINDS AND HAIL AROUND ONE INCH IN DIAMETER. SPOTTERS AND EMERGENCY MANAGEMENT PERSONNEL SHOULD CONTINUE TO MONITOR THIS DEVELOPING WEATHER SITUATION FOR ANY LATER STATEMENTS...WATCHES OR WARNINGS FROM THE NATIONAL WEATHER SERVICE. HG
Special weather statement, Jul 24, 10:32 AM EDT, 5 hours 50 minutes before
GAZ010-017-018-026-028-029-NCZ033>037-048>059-062>072-082-SCZ001>014- 019-242100- SEVERE WEATHER OUTLOOK NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 1032 AM EDT SAT JUL 24 1999 ...STRONG TO SEVERE THUNDERSTORMS POSSIBLE THIS AFTERNOON... A MOIST AND UNSTABLE AIRMASS IS IN PLACE ACROSS THE WESTERN CAROLINAS AND NORTHEAST GEORGIA TODAY. AN UPPER LEVEL DISTURBANCE WILL INTERACT WITH THIS AIRMASS...TRIGGERING THUNDERSTORM DEVELOPMENT. THUNDERSTORMS ARE EXPECTED TO BEGIN DEVELOPING ACROSS THE MOUNTAINS EARLY THIS AFTERNOON...AND MOVE SOUTHEAST. PIEDMONT AND FOOTHILL SECTIONS WILL BE AFFECTED BY THUNDERSTORMS BY MID TO LATE AFTERNOON. ANY OF THESE THUNDERSTORMS WILL HAVE THE POTENTIAL TO PRODUCE GUSTY WINDS OF 35 TO 45 MPH...SMALL HAIL...AND HEAVY DOWNPOURS. A FEW STORMS COULD PRODUCE DAMAGING WINDS AND HAIL AROUND ONE INCH IN DIAMETER. SPOTTERS AND EMERGENCY MANAGEMENT PERSONNEL SHOULD CONTINUE TO MONITOR THIS DEVELOPING WEATHER SITUATION FOR ANY LATER STATEMENTS...WATCHES OR WARNINGS FROM THE NATIONAL WEATHER SERVICE. HG
Special weather statement, Jul 24, 10:32 AM EDT, 5 hours 50 minutes before
GAZ010-017-018-026-028-029-NCZ033>037-048>059-062>072-082-SCZ001>014- 019-242100- SEVERE WEATHER OUTLOOK...CORRECTED FOR FORMAT NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 1032 AM EDT SAT JUL 24 1999 ...STRONG TO SEVERE THUNDERSTORMS POSSIBLE THIS AFTERNOON... A MOIST AND UNSTABLE AIRMASS IS IN PLACE ACROSS THE WESTERN CAROLINAS AND NORTHEAST GEORGIA TODAY. AN UPPER LEVEL DISTURBANCE WILL INTERACT WITH THIS AIRMASS...TRIGGERING THUNDERSTORM DEVELOPMENT. THUNDERSTORMS ARE EXPECTED TO BEGIN DEVELOPING ACROSS THE MOUNTAINS EARLY THIS AFTERNOON...AND MOVE SOUTHEAST. PIEDMONT AND FOOTHILL SECTIONS WILL BE AFFECTED BY THUNDERSTORMS BY MID TO LATE AFTERNOON. ANY OF THESE THUNDERSTORMS WILL HAVE THE POTENTIAL TO PRODUCE GUSTY WINDS OF 35 TO 45 MPH...SMALL HAIL...AND HEAVY DOWNPOURS. A FEW STORMS COULD PRODUCE DAMAGING WINDS AND HAIL AROUND ONE INCH IN DIAMETER. SPOTTERS AND EMERGENCY MANAGEMENT PERSONNEL SHOULD CONTINUE TO MONITOR THIS DEVELOPING WEATHER SITUATION FOR ANY LATER STATEMENTS...WATCHES OR WARNINGS FROM THE NATIONAL WEATHER SERVICE. HG
Local storm report, Jul 24, 1:20 PM EDT, 3 hours 2 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
120 PM EDT SAT JUL 24 1999
TIME (EDT) .....CITY LOCATION....... ST ...EVENT/REMARKS...
.....COUNTY LOCATION.....
115 PM 7 W BURNSVILLE NC 1.00 INCH HAIL
07/24/99 YANCEY PRICES CREEK STORE
REPORTED HAIL UP TO
QUARTER SIZE FALLING FOR
15 MINUTES
JONESSpecial weather statement, Jul 24, 3:42 PM EDT, 40 minutes before
GAZ010-017-018-026-028-029-NCZ033>037-048>059-062>072-082-SCZ001>014- 019-250400- SEVERE THUNDERSTORM OUTLOOK NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 342 PM EDT SAT JUL 24 1999 ...SEVERE THUNDERSTORMS POSSIBLE THROUGH THE EVENING HOURS... STRONG THUNDERSTORMS HAVE DEVELOPED IN ADVANCE OF AN UPPER LEVEL DISTURBANCE CROSSING THE AREA FROM THE NORTHWEST. SOME OF THESE THUNDERSTORMS HAVE ALREADY PRODUCED LARGE HAIL...AND THE POTENTIAL FOR DAMAGING WIND GUSTS ALSO EXISTS. THUNDERSTORMS WILL BE MOST NUMEROUS ACROSS THE MOUNTAINS AND FOOTHILLS DURING THE EARLY EVENING...WITH THE ACTIVITY GRADUALLY SHIFTING EASTWARD AS THE EVENING PROGRESSES. THUNDERSTORMS WILL GENERALLY TAPER OFF BY 9 PM ACROSS THE MOUNTAINS...WHILE EASTERN PIEDMONT SECTIONS MAY SEE STORMS LINGER UNTIL MIDNIGHT. THE WIDESPREAD NATURE OF THE THUNDERSTORMS...ALONG WITH THEIR SLOW SOUTHEAST MOVEMENT...ALSO CREATES THE POTENTIAL FOR FLASH FLOODING TO DEVELOP...ESPECIALLY IN THE MOUNTAINS. TORRENTIAL RAIN OF 1 TO 2 INCHES PER HOUR WILL BE COMMON IN THE STRONGEST THUNDERSTORMS...AND STREAMS AND CREEKS WILL LIKELY RISE RAPIDLY. SPOTTERS AND EMERGENCY MANAGEMENT PERSONNEL ARE REQUESTED TO CLOSELY MONITOR THE SITUATION AND RELAY ANY REPORTS OF SEVERE WEATHER OR FLASH FLOODING TO THE NATIONAL WEATHER SERVICE. HG HG
Special weather statement, Jul 24, 3:42 PM EDT, 40 minutes before
GAZ010-017-018-026-028-029-NCZ033>037-048>059-062>072-082-SCZ001>014- 019-250400- SEVERE THUNDERSTORM OUTLOOK NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 342 PM EDT SAT JUL 24 1999 ...SEVERE THUNDERSTORMS POSSIBLE THROUGH THE EVENING HOURS... STRONG THUNDERSTORMS HAVE DEVELOPED IN ADVANCE OF AN UPPER LEVEL DISTURBANCE CROSSING THE AREA FROM THE NORTHWEST. SOME OF THESE THUNDERSTORMS HAVE ALREADY PRODUCED LARGE HAIL...AND THE POTENTIAL FOR DAMAGING WIND GUSTS ALSO EXISTS. THUNDERSTORMS WILL BE MOST NUMEROUS ACROSS THE MOUNTAINS AND FOOTHILLS DURING THE EARLY EVENING...WITH THE ACTIVITY GRADUALLY SHIFTING EASTWARD AS THE EVENING PROGRESSES. THUNDERSTORMS WILL GENERALLY TAPER OFF BY 9 PM ACROSS THE MOUNTAINS...WHILE EASTERN PIEDMONT SECTIONS MAY SEE STORMS LINGER UNTIL MIDNIGHT. THE WIDESPREAD NATURE OF THE THUNDERSTORMS...ALONG WITH THEIR SLOW SOUTHEAST MOVEMENT...ALSO CREATES THE POTENTIAL FOR FLASH FLOODING TO DEVELOP...ESPECIALLY IN THE MOUNTAINS. TORRENTIAL RAIN OF 1 TO 2 INCHES PER HOUR WILL BE COMMON IN THE STRONGEST THUNDERSTORMS...AND STREAMS AND CREEKS WILL LIKELY RISE RAPIDLY. SPOTTERS AND EMERGENCY MANAGEMENT PERSONNEL ARE REQUESTED TO CLOSELY MONITOR THE SITUATION AND RELAY ANY REPORTS OF SEVERE WEATHER OR FLASH FLOODING TO THE NATIONAL WEATHER SERVICE. HG HG
The office that day
Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 24, 12:45 PM EDT | Severe Thunderstorm Warning | GSP | Yancey | 50 min |
| Jul 24, 2:46 PM EDT | Severe Thunderstorm Warning | GSP | Iredell | 44 min |
| Jul 24, 3:17 PM EDT | Severe Thunderstorm Warning | GSP | Davie, Rowan | 48 min |
| Jul 24, 3:46 PM EDT | Flash Flood Warning | GSP | Haywood, Jackson | 2 hr |
| Jul 24, 4:18 PM EDT | Severe Thunderstorm Warning | GSP | Madison | 32 min |
| Jul 24, 4:29 PM EDT | Severe Thunderstorm Warning | GSP | Yancey | 51 min |
| Jul 24, 5:29 PM EDT | Severe Thunderstorm Warning | GSP | Gaston | 46 min |
| Jul 24, 6:14 PM EDT | Flash Flood Warning | GSP | Mecklenburg | 3 hr |
| Jul 24, 6:19 PM EDT | Severe Thunderstorm Warning | GSP | Union | 46 min |
| Jul 24, 5:57 PM EDT | Severe Thunderstorm Warning | GSP | Abbeville | 48 min |
| Jul 24, 6:21 PM EDT | Severe Thunderstorm Warning | GSP | Union | 54 min |
| Jul 24, 6:45 PM EDT | Severe Thunderstorm Warning | GSP | Laurens | 45 min |
| Jul 24, 5:35 PM EDT | Severe Thunderstorm Warning | GSP | Elbert | 65 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.