Alert archive / North Carolina / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 220, NWS Greenville-Spartanburg, SC
NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Jun 1, 2011, 3:38 PM EDT for Haywood County, Jackson County, Transylvania County, North Carolina. It was in force for 67 min. 3 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jun 1, 2011, 3:38 PM EDT (19:38 UTC)
- Expired
- Jun 1, 2011, 4:45 PM EDT
- In force
- 67 min
- Issued by
- NWS Greenville-Spartanburg, SC
- Area
- Storm-based polygon
Counties Haywood County, NC, Jackson County, NC, Transylvania County, NC
The radar
The Greer radar (KGSP), 80 km from the middle of the area, began a volume at 19:38 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 1, 4:54 PM EDT | HAIL 0.75 | Wolf Mountain, NC | DIME TO MARBLE SIZED HAIL AT WOLF MOUNTAIN RESERVOIR |
| Jun 1, 4:55 PM EDT | HAIL 0.5 | 9 Ese Tuckasegee, NC | HAD BRIEF MARBLE SIZED HAIL. ALMOST NO WIND. DESCRIBED THE STORM AS RAGING TOWARD WOLF MOUNTAIN. THIS IS 2 TO 3 MILES OUT EAST FROM CANADA ROAD ALONG NEDDIE MOUNTAIN ROAD. |
| Jun 1, 4:55 PM EDT | HAIL 1.25 | 10 Ese Tuckasegee, NC | NEAR WOLF MOUNTAIN...HAIL SOMEWHAT IN THE SHAPE OF SPEARS WITH DIAMETER LARGER THAN AN INCH FELL FOR A SHORT TIME. NO WIND DURING THE STORM AND A LIGHT GUST PRIOR TO STORM. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
Did it verify
Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.
Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.
The nearest sounding before it
Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 7.6 hours before the alert went out and 258 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
- 2716 J/kg
- Mixed-layer CIN
- -108 J/kg
- Mixed-layer LCL
- 1339 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 25 m²/s²
- 0-3 km storm-relative helicity
- 36 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
693 WUUS52 KGSP 011938 SVRGSP NCC087-099-175-012045- /O.NEW.KGSP.SV.W.0220.110601T1938Z-110601T2045Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 338 PM EDT WED JUN 1 2011 THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHEASTERN HAYWOOD COUNTY IN WESTERN NORTH CAROLINA... NORTHWESTERN TRANSYLVANIA COUNTY IN WESTERN NORTH CAROLINA... EAST CENTRAL JACKSON COUNTY IN WESTERN NORTH CAROLINA... * UNTIL 445 PM EDT * AT 334 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR BALSAM GROVE...OR 10 MILES WEST OF BREVARD. THIS STORM WAS NEARLY STATIONARY. * LOCATIONS IMPACTED INCLUDE... RURAL WESTERN TRANSYLVANIA COUNTY AT 350 PM EDT RURAL EASTERN JACKSON COUNTY AT 350 PM EDT RURAL CENTRAL TRANSYLVANIA COUNTY AT 440 PM EDT PRECAUTIONARY/PREPAREDNESS ACTIONS... PEOPLE IN THE PATH OF THIS SEVERE THUNDERSTORM SHOULD BE ALERT FOR LARGE HAIL AND DAMAGING WINDS. FREQUENT LIGHTNING AND LOCALLY HEAVY RAIN CAN OCCUR WITH ANY THUNDERSTORM. SEEK SHELTER INDOORS AWAY FROM WINDOWS AND DOORS UNTIL THE STORM PASSES. TO REPORT DAMAGING WINDS...LARGE HAIL...OR FLOODING...THROUGH OUR AUTOMATED REPORTING SYSTEM...CALL OUR TOLL FREE NUMBER... 1 8 7 7...6 3 3...6 7 7 2. && LAT...LON 3540 8308 3540 8274 3515 8279 3514 8301 TIME...MOT...LOC 1938Z 178DEG 2KT 3523 8290 $$ ARK
2 follow-up statements
391 WWUS52 KGSP 012009 SVSGSP SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 409 PM EDT WED JUN 1 2011 NCC087-099-175-012045- /O.CON.KGSP.SV.W.0220.000000T0000Z-110601T2045Z/ HAYWOOD NC-TRANSYLVANIA NC-JACKSON NC- 409 PM EDT WED JUN 1 2011 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 PM EDT FOR EAST CENTRAL JACKSON...NORTHWESTERN TRANSYLVANIA AND SOUTHEASTERN HAYWOOD COUNTIES... AT 408 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR BALSAM GROVE...OR 11 MILES WEST OF BREVARD...MOVING SOUTH AT 5 MPH. THE SEVERE THUNDERSTORM WILL OTHERWISE REMAIN OVER MAINLY RURAL AREAS OF THE INDICATED COUNTY. LAT...LON 3540 8308 3540 8274 3515 8279 3514 8301 TIME...MOT...LOC 2009Z 009DEG 5KT 3521 8292 $$ ARK
597
WWUS52 KGSP 012033
SVSGSP
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
433 PM EDT WED JUN 1 2011
NCC087-012043-
/O.CAN.KGSP.SV.W.0220.000000T0000Z-110601T2045Z/
HAYWOOD NC-
433 PM EDT WED JUN 1 2011
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN HAYWOOD COUNTY IS
CANCELLED...
LAT...LON 3540 8308 3535 8298 3530 8295 3529 8292
3531 8290 3524 8277 3515 8279 3514 8301
TIME...MOT...LOC 2033Z 120DEG 8KT 3522 8299
$$
NCC099-175-012045-
/O.CON.KGSP.SV.W.0220.000000T0000Z-110601T2045Z/
TRANSYLVANIA NC-JACKSON NC-
433 PM EDT WED JUN 1 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 PM EDT
FOR EAST CENTRAL JACKSON AND CENTRAL TRANSYLVANIA COUNTIES...
AT 429 PM EDT...A SEVERE THUNDERSTORM WAS REPORTED CAPABLE OF
PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.
THIS STORM WAS LOCATED NEAR WOLF MOUNTAIN...OR 14 MILES WEST OF
BREVARD...MOVING NORTHWEST AT 10 MPH.
THE SEVERE THUNDERSTORM WILL OTHERWISE REMAIN OVER MAINLY RURAL AREAS
OF THE INDICATED COUNTY.
LAT...LON 3540 8308 3535 8298 3530 8295 3529 8292
3531 8290 3524 8277 3515 8279 3514 8301
TIME...MOT...LOC 2033Z 120DEG 8KT 3522 8299
$$
ARKWhat 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 Jun 1, 2:18 PM EDT, 1 hour 20 minutes earlier.
Area forecast discussion, Jun 1, 2:18 PM EDT, 1 hour 20 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
218 PM EDT WED JUN 1 2011
.SYNOPSIS...
A VERY WEAK COOL FRONT WILL APPROACH FROM THE NORTH INCREASING DAILY
THUNDERSTORM CHANCES AND LOWERING TEMPERATURES ON THURSDAY AND
FRIDAY. THE UPPER RIDGE WILL THEN STRENGTHEN AGAIN AND ALLOW
TEMPERATURES TO WARM THROUGH EARLY NEXT WEEK.
&&
.NEAR TERM /THROUGH THURSDAY/...
AT 1800Z...DEWPOINTS ARE SLOWER TO MIX OUT THIS AFTERNOON WHICH
MAKES A BETTER CASE FOR OVERCOMING THE LOW LEVEL CIN THIS AFTERNOON.
THEREFORE...ISOLATED TO SCATTERED THUDNERSTORMS ARE STILL EXPECTED
TO DEVELOP DURING THE LATE AFTERNOON HOURS. LAPS CAPES NOW EXCEED
5000J/KG MOST AREAS WITH DAPES AROUND 1000J...SO ANY STORMS THAT DO
DEVELOP HAVE THE POTENTIAL TO PRODUCE DAMAGING WINDS AND EVEN LARGE
HAIL DESPITE THE HIGH FREEZING LEVELS. LATEST LOCAL WRF ARW NOT TOO
KEEN ON CONVECTIVE CHANCES...BUT THE WRF NMM CORE AND HRRR DEVELOP
SCATTERED STORMS AS WEAK SURFACE CONVERGENCE DEVELOPS AHEAD OF
APPROACHING BACKDOOR BOUNDARY. CURRENT POP FIELD FEATURING ISOLATED
TO SCATTERED STORMS OVER THE NC FOOTHILLS AND ESCARPMENT STILL LOOKS
REASONABLE.
WIDELY SCATTERED STORMS EXPECTED TO DISSIPATE WITH LOSS OF HEATING
THIS EVENING...WITH WEAK BACKDOOR FRONT BECOMING STATIONARY ACROSS
THE UPSTATE INTO NE GA OVERNIGHT. WEAK VEERING WIND FIELD WILL
PRODUCE A WEAK UPSLOPE COMPONENT AND CONVERGENCE OVER THE WESTERN
UPSTATE/NE GA INTO FAR WESTERN NC ON THU. ALL MODELS RESPOND WITH AT
LEAST SCATTERED CONVECTION THOSE AREAS THU AFTERNOON. USED THE 3
HOURLY SREF POPS WITH SOME MINOR ADJUSTMENTS FOR THU AFTERNOON.
SOMEWHAT DRYER AIR WILL MANAGE TO MOVE INTO THE NC FOOTHILLS/
PIEDMONT WHICH SHOULD PRECLUDE ANY PRECIP CHANCES THERE ON THU.
IT WILL REMAIN QUITE HOT ON THU. HOWEVER WITH THAT SAID...TEMPS WILL
BE A COUPLE DEGREES LOWER THAN TODAY DUE TO CLOUDS AND INCREASED
CONVECTION OVER THE WESTERN AREAS...AND MARGINALLY LOWER THICKNESSES
EAST. USED A MOS BLEND FOR TEMP/DEWPOINT FIELDS.
&&
.SHORT TERM /THURSDAY NIGHT THROUGH SATURDAY NIGHT/...
AS OF 2 PM WEDNESDAY...THE SHORT TERM FCST PICKS UP AT 00Z ON FRIDAY
WITH THE AXIS OF THE UPPER RIDGE ORIENTED NORTH/SOUTH OVER THE MISS
RIVER VALLEY AND SFC HIGH PRESSURE PERSISTING OVER THE SE CONUS. THE
UPPER RIDGE IS EXPECTED TO DEAMPLIFY LATE IN THE PERIOD SAT/EARLY
SUN...ASIDE FROM THIS NO OTHER MAJOR PATTERN CHANGES ARE ANTICIPATED
THRU THE SHORT TERM. WE WILL CONTINUE A PATTERN OF ABOVE AVERAGE
TEMPERATURES WITH HIGHS IN THE LOW 90S ON FRI AND A FEW DEGREES
WARMER ON SAT OVER THE LOWER ELEVATIONS. I KEPT A WIDESPREAD SLIGHT
CHANCE POP OVER THE ENTIRE CWA FOR DIURNALLY DRIVEN SH/TS ON FRI AND
A SLIGHT CHANCE OVER THE NC MTS AND NE GA FOR SAT AFTERNOON/EVENING.
THE MOST RECENT RECENT FCST SOUNDINGS ARE INDICATING BETTER OVERALL
INSTABILITY ON FRI AND POSSIBLY A BETTER LOW LVL CONVERGENCE FIELD
DURING THE AFTERNOON/EVENING HOURS.
&&
.LONG TERM /SUNDAY THROUGH WEDNESDAY/...
AS OF 1245 PM WEDNESDAY...THE MEDIUM RANGE GUIDANCE FAVORS A
BLOCKING PATTERN AT UPPER LEVELS ACROSS THE N ATLANTIC THROUGH THE
FIRST HALF OF NEXT WEEK. THE PERSISTENT PATTERN PLACES AN UPPER
RIDGE AXIS OVER THE MS RIVER WITH RELATIVELY LOW SPREAD AMONGST THE
GEFS ENSEMBLE...RAISING CONFIDENCE THAT OUR RECENT PERIOD OF WELL
ABOVE NORMAL TEMPERATURES AND DRY CONDITIONS WILL CONTINUE. SUNDAY
SHOULD BE THE WARMEST DAY WITH NEAR RECORD HIGHS POSSIBLE.
THEREAFTER...THE GUIDANCE SHOWS HEIGHTS FALLING JUST A BIT TO BRING
TEMPS BACK DOWN TO MERELY 10 DEGREES ABOVE NORMAL. DEEP CONVECTION
IS HIGHLY DOUBTFUL SUNDAY AND MONDAY IN THIS PATTERN. BY TUESDAY AND
WEDNESDAY...CONFIDENCE GOES DOWN SO CLIMO IS ALLOWED TO CREEP IN.
THAT MEANS A SLIGHT CHANCE OVER THE MTNS TUESDAY AFTERNOON...AND
THEN SCATTERED AFTERNOON THUNDERSTORMS OVER THE MTNS AND ISOLATED
STORMS ELSEWHERE WEDNESDAY AFTERNOON.
&&
.AVIATION /18Z WEDNESDAY THROUGH MONDAY/...
AT KCLT AND ELSEWHERE...FOR THE AFTERNOON/EVENING...MAIN FOCUS IS ON
POTENTIAL FOR THUNDERSTORM DEVELOPMENT. ATMOSPHERE HAS HIGH
POTENTIAL INSTABILITY...BUT NEEDS TO OVERCOME CONVECTIVE INHIBITION
LOWER LEVELS. BELIEVE THAT WEAK SURFACE CONVERGENCE PROVIDED BY WEAK
BOUNDARY MOVING INTO THE AREA LATE THIS AFTERNOON WILL BE ENOUGH TO
TRIGGER WIDELY STORMS ACROSS THE FOOTHILLS/NORTHERN PIEDMONT.
HENCE...WILL INCLUDE A CB MENTION AT ALL TAF SITES EXCEPT KAVL/KAND.
ANY STORMS THAT DO DEVELOP HAVE THE POTENTIAL TO BECOME SEVERE.
OVERNIGHT...ALL GUIDANCE POINTS TO A COUPLE HOURS OF MVFR FOG
RESTRICTIONS 10Z-13Z MAINLY KAVL/MOUNTAIN VALLEYS...BUT ALSO AT
KCLT.
OUTLOOK...WHILE IT WILL REMAIN HOT...THUNDERSTORM ACTIVITY WILL
BECOME A LITTLE MORE WIDESPREAD INTO THE WEEKEND EACH AFTERNOON.
EARLY MRNG VALLEY FOG WILL BE PSBL EACH DAY...MAINLY MTN VALLEYS.
&&
.CLIMATE...
RECORD MAX TEMPS FOR TODAY
GSP 96
CLT 98
AVL 93
&&
.GSP WATCHES/WARNINGS/ADVISORIES...
GA...NONE.
NC...NONE.
SC...NONE.
&&
SYNOPSIS...JPT
NEAR TERM...LG
SHORT TERM...JPT
LONG TERM...PM
AVIATION...LG
CLIMATE...Hazardous weather outlook, Jun 1, 5:33 AM EDT, 10 hours 5 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 533 AM EDT WED JUN 1 2011 GAZ029-SCZ011>014-019-020945- ELBERT-ABBEVILLE-LAURENS-UNION SC-CHESTER-GREENWOOD- 533 AM EDT WED JUN 1 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST GEORGIA AND UPSTATE SOUTH CAROLINA. .DAY ONE...TODAY AND TONIGHT. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... NONE. GAZ010-017-018-026-028-NCZ033-035>037-048>053-056>059-062>065- 068>072-082-501>510-SCZ001>010-020945- RABUN-HABERSHAM-STEPHENS-FRANKLIN-HART-AVERY-ALEXANDER-IREDELL-DAVIE- MADISON-YANCEY-MITCHELL-SWAIN-HAYWOOD-BUNCOMBE-CATAWBA-ROWAN-GRAHAM- NORTHERN JACKSON-MACON-SOUTHERN JACKSON-TRANSYLVANIA-HENDERSON- CLEVELAND-LINCOLN-GASTON-MECKLENBURG-CABARRUS-UNION NC- CALDWELL MOUNTAINS-GREATER CALDWELL-BURKE MOUNTAINS-GREATER BURKE- MCDOWELL MOUNTAINS-EASTERN MCDOWELL-RUTHERFORD MOUNTAINS- GREATER RUTHERFORD-POLK MOUNTAINS-EASTERN POLK-OCONEE MOUNTAINS- PICKENS MOUNTAINS-GREENVILLE MOUNTAINS-GREATER OCONEE- GREATER PICKENS-GREATER GREENVILLE-SPARTANBURG-CHEROKEE-YORK- ANDERSON- 533 AM EDT WED JUN 1 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST GEORGIA...PIEDMONT NORTH CAROLINA...WESTERN NORTH CAROLINA AND UPSTATE SOUTH CAROLINA. .DAY ONE...TODAY AND TONIGHT. SCATTERED TO ISOLATED THUNDERSTORMS ARE EXPECTED TO DEVELOP ACROSS THE AREA THIS AFTERNOON AND EVENING. A FEW OF THESE STORMS MAY BECOME SEVERE...PRODUCING DAMAGING WIND GUSTS AND/OR LARGE HAIL. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... NONE.
The office that day
Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 1, 4:45 PM EDT | Special Weather Statement | GSP | Jackson | 45 min |
| Jun 1, 4:51 PM EDT | Severe Thunderstorm Warning | GSP | Jackson, Transylvania | 54 min |
| Jun 1, 5:14 PM EDT | Severe Thunderstorm Warning | GSP | Jackson, Macon, Transylvania | 36 min |
| Jun 1, 6:01 PM EDT | Special Weather Statement | GSP | Jackson | 44 min |
| Jun 1, 6:19 PM EDT | Special Weather Statement | GSP | Jackson | 26 min |
Nearby
Severe Thunderstorm Warnings in North Carolina, 2011Every severe thunderstorm warning in 2011
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.