Alert archive / North Carolina / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 17, NWS Greenville-Spartanburg, SC

March 23, 2011Avery County, North Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Mar 23, 2011, 9:53 PM EDT for Avery County, North Carolina. It was in force for 24 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Mar 23, 2011, 9:53 PM EDT (01:53 UTC)
Expired: Mar 23, 2011, 10:17 PM EDT
In force: 24 min
Issued by: NWS Greenville-Spartanburg, SC
Area: Storm-based polygon

County Avery County, NC

The radar

The Knoxville radar (KMRX), 134 km from the middle of the area, began a volume at 01:56 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.

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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Mar 23, 3:45 PM EDT	Tornado Watch	SPC	6 hr
Mar 23, 9:41 PM EDT	Tornado Watch	SPC	2 hr

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 00:00Z, 1.9 hours before the alert went out and 181 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 88 J/kg
Mixed-layer CIN: -77 J/kg
Mixed-layer LCL: 816 m above ground
0-6 km bulk shear: 81 kt
0-1 km storm-relative helicity: 249 m²/s²
0-3 km storm-relative helicity: 410 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.5

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

424 
WUUS52 KGSP 240153
SVRGSP
NCC011-240245-
/O.NEW.KGSP.SV.W.0017.110324T0153Z-110324T0245Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
953 PM EDT WED MAR 23 2011

THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN AVERY COUNTY IN WESTERN NORTH CAROLINA...

* UNTIL 1045 PM EDT

* AT 948 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 3 MILES
  NORTHWEST OF MINNEAPOLIS...OR 6 MILES WEST OF NEWLAND...MOVING EAST
  AT 45 MPH.

* LOCATIONS IMPACTED INCLUDE...
  NEWLAND...
  GRANDFATHER MOUNTAIN...SUGAR MOUNTAIN...LINVILLE AND BANNER ELK...

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 3629 8190 3627 8188 3621 8190 3616 8182
      3610 8180 3605 8173 3602 8176 3604 8206
      3612 8206 3613 8205 3613 8202 3628 8192
TIME...MOT...LOC 0153Z 278DEG 37KT 3611 8197

$$

KRENTZ

1 follow-up statement

430 
WWUS52 KGSP 240217
SVSGSP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1017 PM EDT WED MAR 23 2011

NCC011-240227-
/O.CAN.KGSP.SV.W.0017.000000T0000Z-110324T0245Z/
AVERY NC-
1017 PM EDT WED MAR 23 2011

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN AVERY COUNTY IS
CANCELLED...

LAT...LON 3629 8190 3627 8188 3621 8190 3616 8182
      3610 8180 3605 8173 3602 8176 3604 8206
      3612 8206 3613 8205 3613 8202 3628 8192
TIME...MOT...LOC 0217Z 278DEG 37KT 3607 8167

$$

KRENTZ

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 Mar 23, 7:53 PM EDT, 2 hours earlier.

Area forecast discussion, Mar 23, 7:53 PM EDT, 2 hours before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
753 PM EDT WED MAR 23 2011

.SYNOPSIS...
A COLD FRONT WILL MOVE OFF THE CAROLINA COAST THURSDAY MORNING.
WEAK HIGH PRESSURE WILL BUILD IN ALONG THE EASTERN SEABOARD THROUGH
FRIDAY AS A LOW PRESSURE SYSTEM DEVELOPS OVER THE SOUTHERN PLAINS.
THIS SYSTEM WILL AFFECT THE REGION OVER THE WEEKEND.

&&

.NEAR TERM /THROUGH THURSDAY/...
A QUICK UPDATE TO ACCOUNT FOR THE NEW TORNADO WATCH ACROSS THE NC
MTNS AND NRN FOOTHILLS. RADAR TRENDS IN NORTH CENTRAL AND NE TN
SUGGEST THE POSSIBILITY OF SOME SEVERE STORMS CROSSING THE GREAT
VALLEY OF TN AND REACHING THE NC MTNS...ESPECIALLY HAYWOOD COUNTY
AND N...AFTER 22Z. MADE A FEW TWEAKS TO NEAR TERM SKY AND WEATHER AS
WELL. OTHERWISE...PREVIOUS THINKING HOLDS TRUE.

UPPER SHORT WAVE MOVING THROUGH THE OHIO VALLEY WILL DIG SE INTO THE
SOUTHERN APPALACHIANS TONIGHT. THIS WILL DRIVE A SURFACE COLD FRONT
ACROSS THE AREA. BKN CONVECTION SHOULD ACCOMPANY THE FRONT IN THE
00Z-05Z TIMEFRAME. SOME SCATTERED THUNDERSTORMS AHEAD OF THE FRONT
ARE ALSO POSSIBLE AS ATMOSPHERE DESTABILIZES LATE THIS AFTERNOON.
HENCE...WILL CARRY LIKELY POPS THIS EVENING...QUICKLY DECLINING
AFTER 04Z. UPSLOPE FLOW ALONG WITH SUFFICIENT LOW LEVEL MOISTURE
WILL GENERATE SCATTERED SHOWERS LATE TONIGHT...THROUGH A GOOD
PORTION OF THU IN THE FAVORED AREAS ALONG THE TENNESSE BORDER. GUSTY
NW WINDS WILL OCCUR IN THE WAKE OF THE FRONTAL PASSAGE IN THE
MOUNTAINS...SO WILL EXTEND THE LAKE WIND ADVISORY THERE OVERNIGHT.
ELSEWHERE ON THU...EXPECT ABUNDANT SUNSHINE WITH SEASONAL TEMPS IN
DOWNSLOPE FLOW. USED A MOS BLEND FOR MOST GRID FIELDS.

IN REGARD TO SEVERE WX...A FEW SEVERE STORMS ARE STILL POSSIBLE THIS
EVENING WITH STRONG WIND FIELD IN PLACE AND CAPES INCREASING TO AS
MUCH AS 400-600J FROM THE NORTHERN MOUNTAINS...EAST THROUGH THE NC
PIEDMONT/FOOTHILLS. THIS IS ALSO WHERE THE BEST DPVA WILL OCCUR.
THIS AREA LOOKS TO HAVE THE BEST CHANCE FOR DAMAGING WINDS AND LARGE
HAIL. SPC DAY1 OUTLOOK HAS INCLUDED ALL OF WESTERN NC IN THEIR
SLIGHT RISK AREA.

&&

.SHORT TERM /THURSDAY NIGHT THROUGH SUNDAY/...
AS OF 230 PM WEDNESDAY...COOL CANADIAN AIR MASS WILL BUILD OVER THE
REGION THURSDAY NIGHT...RESULTING IN WEAK CAA. BY DAYBREAK FRIDAY...NAM
AND GFS H85 TEMPERATURES FALL BETWEEN 0 TO -2 C ACROSS THE MTNS AND
ALONG AND NORTH OF I-40. FORECAST SOUNDINGS INDICATE MOSTLY CLEAR
CONDITIONS EARLY FRIDAY MORNING...WITH WINDS LESS THAN 10 KTS BELOW
3KM. THE COMBINATION OF CHILLY LLVL TEMPERATURE PROFILES...LIGHT TO
CALM SFC WINDS...MOSTLY CLEAR CONDITIONS WILL LIKELY YIELD
TEMPERATURES AT OR BELOW FREEZING ACROSS THE NC MTNS...WITH MID 30S
EXPECTED ACROSS THE I-40 CORRIDOR. I WILL CONTINUE TO INDICATE AREAS
AND PATCHY FROST IN THE FORECAST AND A MENTION IN THE HWO.

THE CENTER OF HIGH PRESSURE WILL SHIFT EAST DURING THE MORNING AND
AFTERNOON ON FRIDAY. CIRCULATION AROUND THE HIGH AND BROAD LOW
PRESSURE WEST WILL PRODUCE LIGHT RETURN FLOW BY THE AFTERNOON. GOOD
INSOLATION BETWEEN AFTERNOON CU SHOULD ALLOW HIGHS TO REACH WITHIN A
FEW DEGREES OF NORMAL.

A LARGE LOW PRESSURE SYSTEM IS FORECAST TO MOVE EAST OVER THE MID
MISSISSIPPI RIVER VALLEY BY SATURDAY AFTERNOON. AS THE FRONT
APPROACHES...IT/S ASSOCIATED WARM FRONT WILL LIFT ACROSS THE
SOUTHERN APPALACHIAN REGION DURING THE DAY. INCREASING LLVL FLOW
AHEAD OF THE LOW WILL PRODUCE WIDESPREAD ISENTROPIC AND UPSLOPE LIFT
ACROSS THE FORECAST AREA. I WILL INDICATE INCREASING POPS THROUGH
THE DAY...REACHING LIKELY POPS ACROSS THE MTNS AND HIGH CHC EAST BY
LATE AFTERNOON. INCREASING CLOUD COVER AND SHRA COVERAGE WILL LIKELY
KEEP MINS NEARLY 5 DEGREES ABOVE NORMAL ON SATURDAY...WITH NEAR
NORMAL HIGHS.

ON SUNDAY...SHRA COVERAGE IS EXPECTED TO LINGER THROUGH THE MORNING
HOURS AS LLVL LIFT REMAINS WITHIN ISENTROPIC SURFACES AND BROAD
UPSLOPE FLOW. IN FACT...FORECAST SOUNDINGS INDICATE THAT MOISTURE
WILL INCREASE AS PW/S PUSH ABOVE 1.25 INCHES AND LCL LEVELS DROP
BELOW 2 KFT. BY THE AFTERNOON...CAPE VALUES ARE FORECAST TO INCREASE
TO AROUND 500 J/KG AND UNIDIRECTIONAL SHEAR INCREASE AROUND 150
M2/S2 DURING THE EARLY AFTERNOON. I WILL INDICATE EQUAL CHCS FOR
SHRA AND TSRA DURING THE DAY. TEMPERATURES SHOULD CONTINUE TO
FEATURE WELL ABOVE AVERAGE MIN TEMPS WITH NEAR NORMAL HIGHS.

&&

.LONG TERM /SUNDAY NIGHT THROUGH WEDNESDAY/...
AS OF 220 PM WEDNESDAY...THE MEDIUM RANGE MODELS...MAINLY THE GFS
AND ECMWF...ARE IN GOOD AGREEMENT ALTHOUGH THEY DO DIVERGE MORE
TOWARD NEW DAY 7.  ON MONDAY...GENERAL AGREEMENT ON THE POSITION OF
THE HIGH NEAR THE WESTERN GREAT LAKES EARLY IN THE DAY WITH
ADVANCING LOW PRESSURE FROM THE WEST.  MONDAY MORNING LOWS SEEMS TO
BE ON A RISING TREND WITH INCREASING MOISTURE WITH THE APPROACHING
SYSTEM FROM THE WEST AND HIGHER DEWPOINTS. THE 12Z GFS BRINGS A MUCH
WEAKER LOW TOWARD OUR REGION AND SHIFTS THE SOMEWHAT BETTER RAIN
AMOUNTS SOUTH OF OUR AREA MONDAY NIGHT.  BOTH THE GFS AND ECMWF WERE
SHOWING THE NORTHERN HIGH RIDGING DOWN THE EAST COAST IN A
WEDGE...ESPECIALLY MONDAY NIGHT AND TUESDAY.  THE GFS HAS A WEAKER
WEDGE AND OF COURSE WE ARE STILL WAITING ON THE NEW ECMWF.  THE OLD
00Z ECMWF HAS A STRONGER LOW APPROACHING FROM THE WEST WITH A
STRONGER WEDGE.  A COOL NORTHEAST WIND WILL BE IN PLACE FROM MONDAY
EVENING THROUGH MUCH OF THE DAY TUESDAY WITH PLENTY OF CLOUD COVER.
BACKING OFF ON THE POPS A BIT SEEING THE TREND ON THE GFS AND
SUSPECTING THE ECMWF MAY FOLLOW A SIMILAR TREND.  DRYING OUT INTO
WEDNESDAY NIGHT.

&&

.AVIATION /00Z THURSDAY THROUGH MONDAY/...
AT KCLT...GUSTY SW CROSS WINDS WILL CONTINUE THROUGH THE EARLY PART
OF THE EVENING UNTIL BROKEN AREA OF CONVECTION ARRIVES...AROUND 01Z.
MAIN FORECAST PROBLEM WILL BE THE EXTENT OF THE CONVECTION IMPACTING
THE SRN PIEDMONT OF NC. RADARS SHOW SCATTERED SHOWERS ACROSS SW NC
AND INTO N GA MOVING RAPIDLY EAST WITH LITTLE LIGHTNING. UNLESS
RADAR COVERAGE INCREASES...THE OVERWHELMING MAJORITY OF THE TIME THE
CONDITIONS WILL REMAIN VFR WITH SHOWERS AND THUNDERSTORMS PASSING
THROUGH THE VICINITY...WITH ONE OR TWO BRIEF SHOWERS. THINK IT BEST
TO PORTRAY THIS AS A TEMPO FOR ONLY THE SHOWERS WITH A VFR CONDITION
AND AMEND THE TAF IF IT LOOKS LIKE A THUNDERSTORM WITH A RESTRICTION
IS AT LEAST A COIN FLIP BET. ONCE THE CONVECTION MOVES PAST...SOME
LOW CLOUDS MAY LINGER...FOLLOWED BY A RAPID CLEARING AFTER 07Z.
AFTER SUNRISE...THE WIND SHOULD SHIFT TO NW WITH OCCASIONAL GUSTS.
THERE COULD BE A FEW STRATOCU IN THE AFTERNOON.

ELSEWHERE...ESSENTIALLY THE SAME IDEA EXCEPT THAT THE SCATTERED
SHOWERS ARE ALREADY LURKING AROUND THE TAF SITES. UNTIL MORE
LIGHTNING IS SEEN...WILL KEEP THUNDER ONLY AT VCTS...WITH TEMPO FOR
SHOWERS...THROUGH 03Z TO 04Z. AFTER THAT...VFR CONDITIONS UNTIL THE
END OF THE TAF.

OUTLOOK...DRY HIGH PRESSURE WILL DOMINATE THE WEATHER THROUGH
FRIDAY. A SERIES OF LOW PRESSURE SYSTEMS MAY RIDE EASTWARD ALONG A
FRONTAL ZONE TO REACH THE AREA OVER WEEKEND...WITH RESTRICTIONS
LIKELY RETURNING.

&&

.FIRE WEATHER...
GUSTY SW WINDS DEVELOPED AS EXPECTED AND WILL CONTINUE INTO THE LATE
AFTERNOON. A COLD FRONT WILL CROSS THE AREA TONIGHT WITH MOST AREAS
RECEIVING A SHOWER OR THUNDERSTORM. HOWEVER...RAINFALL IS EXPECTED
TO BE LIGHT WITH MOST OF SC/NE GA RECEIVING ON AVERAGE .05 TO .15 OF
AN INCH...WITH 15 TO .25 OF AN INCH IN WESTERN NC. A DRY AIRMASS
WILL OVERSPREAD THE REGION ON THU BEHIND TONIGHT'S COLD FRONT. RH'S
ARE FORECAST TO DIP TO 26-30% OUTSIDE OF THE MOUNTAINS AND GENERALLY
50-60% IN THE MOUNTAINS. WINDS WILL BE GUSTY FROM THE NW ON
THU...ESPECIALLY IN THE MORNING. RED FLAG CONDITIONS ARE NOT
ANTICIPATED...BUT WITH THE DRY FUELS LAND MANAGERS IN SC AND NC HAVE
REQUESTED FIRE DANGER STATEMENTS.

&&

.GSP WATCHES/WARNINGS/ADVISORIES...
GA...LAKE WIND ADVISORY UNTIL 8 PM EDT THIS EVENING FOR GAZ010-017-
     018-026-028-029.
NC...RED FLAG WARNING UNTIL 8 PM EDT THIS EVENING FOR NCZ033-
     035>037-048>053-056>059-062>065-068>072-082-303-501>510.
     LAKE WIND ADVISORY UNTIL 8 AM EDT THURSDAY FOR NCZ033-048>053-
     059-063>065-501-503-505-507-509.
     LAKE WIND ADVISORY UNTIL 8 PM EDT THIS EVENING FOR NCZ035>037-
     056>058-062-068>072-082-502-504-506-508-510.
SC...LAKE WIND ADVISORY UNTIL 8 PM EDT THIS EVENING FOR SCZ001>014-
     019.

&&

SYNOPSIS...DEO
NEAR TERM...LG/PM
SHORT TERM...NED
LONG TERM...DEO
AVIATION...LG/PM
FIRE WEATHER...

Hazardous weather outlook, Mar 23, 8:54 PM EDT, 59 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
854 PM EDT WED MAR 23 2011

GAZ010-017-018-026-028-029-NCZ036-037-056-057-068>072-082-508-510-
SCZ001>014-019-250100-
RABUN-HABERSHAM-STEPHENS-FRANKLIN-HART-ELBERT-IREDELL-DAVIE-CATAWBA-
ROWAN-CLEVELAND-LINCOLN-GASTON-MECKLENBURG-CABARRUS-UNION NC-
GREATER RUTHERFORD-EASTERN POLK-OCONEE MOUNTAINS-PICKENS MOUNTAINS-
GREENVILLE MOUNTAINS-GREATER OCONEE-GREATER PICKENS-
GREATER GREENVILLE-SPARTANBURG-CHEROKEE-YORK-ANDERSON-ABBEVILLE-
LAURENS-UNION SC-CHESTER-GREENWOOD-
854 PM EDT WED MAR 23 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST GEORGIA...PIEDMONT
NORTH CAROLINA...WESTERN NORTH CAROLINA AND UPSTATE SOUTH CAROLINA.

.DAY ONE...TONIGHT.

A LINE OF THUNDERSTORMS IS STILL EXPECTED TO DEVELOP OUT AHEAD OF A
APPROACHING COLD FRONT AND MAY AFFECT PORTIONS OF NORTHEAST
GEORGIA AND UPSTATE SOUTH CAROLINA THIS EVENING INTO TONIGHT. A FEW
OF THESE STORMS MAY BE SEVERE...PRODUCING DAMAGING WINDS AND
LARGE HAIL.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

SCATTERED THUNDERSTORMS ARE FORECAST TO DEVELOP ACROSS THE REGION
ON SUNDAY. THE ENVIRONMENT MAY SUPPORT THE FORMATION OF A FEW
SEVERE STORMS...PRODUCING DAMAGING WINDS AND LARGE HAIL.

.SPOTTER INFORMATION STATEMENT...

SKYWARN SPOTTERS ARE REQUESTED TO FORWARD ANY REPORTS OF LARGE
HAIL...DAMAGING WINDS...TORNADOES OR FLASH FLOODING TO OUR OFFICE.

NCZ033-048>053-059-063>065-501-503-505-250100-
AVERY-MADISON-YANCEY-MITCHELL-SWAIN-HAYWOOD-BUNCOMBE-
NORTHERN JACKSON-SOUTHERN JACKSON-TRANSYLVANIA-HENDERSON-
CALDWELL MOUNTAINS-BURKE MOUNTAINS-MCDOWELL MOUNTAINS-
854 PM EDT WED MAR 23 2011

...LAKE WIND ADVISORY IN EFFECT UNTIL 8 AM EDT THURSDAY...
...TORNADO WATCH 56 IN EFFECT UNTIL 10 PM EDT THIS EVENING...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN NORTH CAROLINA.

.DAY ONE...TONIGHT.

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE
INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS.

   LAKE WIND ADVISORY.
   TORNADO WATCH.

SCATTERED SHOWERS AND THUNDERSTORMS WILL GIVE WAY TO A LINE OF
THUNDERSTORMS OUT AHEAD OF AN APPROACHING COLD FRONT THIS EVENING.
LOCALLY SEVERE THUNDERSTORMS WILL BE POSSIBLE...PRODUCING DAMAGING
WIND GUSTS AND LARGE HAIL...WITH THE THREAT LASTING WELL INTO THE
EVENING.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE
INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS.

   LAKE WIND ADVISORY.

TEMPERATURES WILL FALL INTO THE LOWER 30S TO MIDDLE 20S ACROSS
THE NORTH CAROLINA MOUNTAINS THURSDAY NIGHT. COLD TEMPERATURES
AND LIGHT WINDS MAY RESULT IN AREAS OF FROST OR A LIGHT FREEZE BY
SUNRISE FRIDAY.

SCATTERED THUNDERSTORMS ARE FORECAST TO DEVELOP ACROSS THE REGION
ON SUNDAY. THE ENVIRONMENT MAY SUPPORT THE FORMATION OF A FEW
SEVERE STORMS...PRODUCING DAMAGING WINDS AND LARGE HAIL.

.SPOTTER INFORMATION STATEMENT...

SKYWARN SPOTTERS ARE REQUESTED TO FORWARD ANY REPORTS OF LARGE
HAIL...DAMAGING WINDS...TORNADOES OR FLASH FLOODING TO OUR OFFICE.

NCZ035-058-062-502-504-506-250100-
ALEXANDER-GRAHAM-MACON-GREATER CALDWELL-GREATER BURKE-
EASTERN MCDOWELL-
854 PM EDT WED MAR 23 2011

...TORNADO WATCH 56 IN EFFECT UNTIL 10 PM EDT THIS EVENING...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN NORTH CAROLINA.

.DAY ONE...TONIGHT.

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE
INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS.

   TORNADO WATCH.

A LINE OF THUNDERSTORMS IS STILL EXPECTED TO DEVELOP OUT AHEAD OF A
APPROACHING COLD FRONT AND MAY AFFECT PORTIONS OF THE NORTH
CAROLINA FOOTHILLS AND PIEDMONT THIS EVENING INTO TONIGHT. A FEW OF
THESE STORMS MAY BE SEVERE...PRODUCING DAMAGING WINDS AND LARGE
HAIL.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

TEMPERATURES WILL FALL INTO THE MID 30S THURSDAY NIGHT. COOL
TEMPERATURES AND LIGHT TO CALM WINDS MAY SUPPORT THE FORMATION OF
FROST AROUND SUNRISE FRIDAY.

SCATTERED THUNDERSTORMS ARE FORECAST TO DEVELOP ACROSS THE REGION
ON SUNDAY. THE ENVIRONMENT MAY SUPPORT THE FORMATION OF A FEW
SEVERE STORMS...PRODUCING DAMAGING WINDS AND LARGE HAIL.

.SPOTTER INFORMATION STATEMENT...

SKYWARN SPOTTERS ARE REQUESTED TO FORWARD ANY REPORTS OF LARGE
HAIL...DAMAGING WINDS...TORNADOES OR FLASH FLOODING TO OUR OFFICE.

NCZ507-509-250100-
RUTHERFORD MOUNTAINS-POLK MOUNTAINS-
854 PM EDT WED MAR 23 2011

...LAKE WIND ADVISORY IN EFFECT UNTIL 8 AM EDT THURSDAY...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN NORTH CAROLINA.

.DAY ONE...TONIGHT.

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE
INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS.

   LAKE WIND ADVISORY.

THUNDERSTORMS WILL INCREASE IN COVERAGE...WITH SCATTERED ACTIVITY
POSSIBLY GIVING WAY TO A LINE OF THUNDERSTORMS OUT AHEAD OF AN
APPROACHING COLD FRONT THIS EVENING. LOCALLY SEVERE THUNDERSTORMS
WILL BE POSSIBLE... PRODUCING DAMAGING WIND GUSTS AND LARGE
HAIL...WITH THE THREAT LASTING WELL INTO THE EVENING.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE
INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS.

   LAKE WIND ADVISORY.

TEMPERATURES WILL FALL INTO THE LOWER 30S TO MIDDLE 20S ACROSS
THE NORTH CAROLINA MOUNTAINS THURSDAY NIGHT. COLD TEMPERATURES
AND LIGHT WINDS MAY RESULT IN AREAS OF FROST OR A LIGHT FREEZE BY
SUNRISE FRIDAY.

SCATTERED THUNDERSTORMS ARE FORECAST TO DEVELOP ACROSS THE REGION
ON SUNDAY. THE ENVIRONMENT MAY SUPPORT THE FORMATION OF A FEW
SEVERE STORMS...PRODUCING DAMAGING WINDS AND LARGE HAIL.

.SPOTTER INFORMATION STATEMENT...

SKYWARN SPOTTERS ARE REQUESTED TO FORWARD ANY REPORTS OF LARGE
HAIL...DAMAGING WINDS...TORNADOES OR FLASH FLOODING TO OUR OFFICE.

In the hours before

Special weather statement, Mar 23, 5:29 PM EDT, 4 hours 24 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
529 PM EDT WED MAR 23 2011

NCZ048-049-232215-
MADISON-YANCEY-
529 PM EDT WED MAR 23 2011

...A STRONG THUNDERSTORM WILL AFFECT CENTRAL MADISON AND YANCEY
COUNTIES THROUGH 615 PM EDT...

AT 524 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 3 MILES SOUTH OF WHITEROCK...OR 7 MILES NORTH OF
MARSHALL...MOVING EAST AT 25 MPH.

* OTHER LOCATIONS AFFECTED INCLUDE BUT ARE NOT LIMITED TO
  WHITEROCK...WALNUT...SWISS...RAMSEYTOWN...MICAVILLE...MARS HILL...
  FAUST...CELO...BUSICK...BURNSVILLE AND ALLENSTAND.

SMALL HAIL...AND WIND GUSTS OF 40 TO 50 MPH ARE EXPECTED WITH THIS
STORM.

LAT...LON 3598 8224 3600 8220 3599 8219 3594 8219
      3593 8217 3576 8218 3578 8234 3580 8234
      3582 8237 3579 8251 3581 8279 3599 8278
      3600 8260 3596 8259 3597 8255 3600 8248
      3601 8228

07

Special weather statement, Mar 23, 9:18 PM EDT, 35 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
918 PM EDT WED MAR 23 2011

NCZ035-036-056-502-504-240145-
ALEXANDER-CATAWBA-GREATER BURKE-GREATER CALDWELL-IREDELL-
918 PM EDT WED MAR 23 2011

...A STRONG THUNDERSTORM WILL AFFECT CENTRAL IREDELL...EASTERN
BURKE...NORTHERN CATAWBA...SOUTHEASTERN CALDWELL AND SOUTHERN
ALEXANDER COUNTIES THROUGH 945 PM EDT...

AT 917 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR HILDEBRAN...OR 5 MILES WEST OF HICKORY...
MOVING EAST AT 85 MPH.

THIS STORM WILL BE NEAR...
  LONGVIEW...
  ST. STEPHENS...
  LOOKOUT SHOALS LAKE...
  STATESVILLE...

DIME SIZE HAIL...AND WIND GUSTS OF 40 TO 50 MPH ARE EXPECTED WITH
THIS STORM.

LAT...LON 3585 8070 3571 8075 3568 8077 3562 8151
      3579 8155 3591 8070

ARK

Special weather statement, Mar 23, 9:43 PM EDT, 10 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
943 PM EDT WED MAR 23 2011

NCZ033-050-240230-
AVERY-MITCHELL-
943 PM EDT WED MAR 23 2011

...A STRONG THUNDERSTORM WILL AFFECT AVERY AND NORTHERN MITCHELL
COUNTIES THROUGH 1030 PM EDT...

AT 936 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR LIMESTONE COVE...OR 9 MILES EAST OF ERWIN...
MOVING EAST AT 45 MPH.

THIS STORM WILL BE NEAR...
  NEWLAND...
  BANNER ELK...

SMALL HAIL...AND WIND GUSTS OF 40 TO 50 MPH ARE EXPECTED WITH THIS
STORM.

LAT...LON 3627 8188 3621 8190 3616 8182 3610 8180
      3607 8175 3601 8177 3608 8228 3612 8227
      3615 8222 3615 8216 3611 8212 3613 8203
      3623 8197 3629 8191

KRENTZ

Special weather statement, Mar 23, 9:47 PM EDT, 6 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
947 PM EDT WED MAR 23 2011

NCZ036-037-057-240215-
DAVIE-IREDELL-ROWAN-
947 PM EDT WED MAR 23 2011

...A STRONG THUNDERSTORM WILL AFFECT DAVIE...NORTHERN IREDELL AND
NORTHWESTERN ROWAN COUNTIES THROUGH 1015 PM EDT...

AT 942 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 3 MILES NORTHWEST OF STATESVILLE...MOVING EAST AT
70 MPH.

THIS STORM WILL BE NEAR...
  HARMONY...
  CLEVELAND...
  MOCKSVILLE...
  ADVANCE...

DIME SIZE HAIL...AND WIND GUSTS OF 40 TO 50 MPH ARE EXPECTED WITH
THIS STORM.

LAT...LON 3588 8040 3585 8038 3584 8041 3582 8043
      3582 8047 3577 8045 3574 8045 3573 8093
      3594 8099 3606 8071 3605 8046 3594 8035
      3590 8036

ARK

The office that day

Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Mar 23, 9:18 PM EDT	Special Weather Statement	GSP	Catawba, Iredell	27 min
Mar 23, 9:43 PM EDT	Special Weather Statement	GSP	Avery	47 min
Mar 23, 9:47 PM EDT	Special Weather Statement	GSP	Davie, Iredell	28 min
Mar 23, 10:02 PM EDT	Severe Thunderstorm Warning	GSP	Davie	13 min
Mar 23, 10:22 PM EDT	Severe Thunderstorm Warning	GSP	Swain	42 min
Mar 23, 10:48 PM EDT	Special Weather Statement	GSP	Alexander, Caldwell, Davie, Iredell	42 min
Mar 23, 11:15 PM EDT	Special Weather Statement	GSP	Cabarrus, Catawba, Cleveland, Gaston, Lincoln, Mecklenburg and 2 more	45 min
Mar 23, 11:53 PM EDT	Special Weather Statement	GSP	Gaston, Mecklenburg	52 min
Mar 24, 12:15 AM EDT	Special Weather Statement	GSP	Cabarrus, Mecklenburg	45 min
Mar 24, 1:44 AM EDT	Special Weather Statement	GSP	Avery	31 min
Mar 24, 3:09 AM EDT	Frost Advisory	GSP	Alexander, Burke, Caldwell, Catawba, Davie, Iredell and 2 more	30 hr
Mar 24, 3:09 AM EDT	Freeze Warning	GSP	Buncombe, Burke, Caldwell, Graham, Haywood, Henderson and 6 more	30 hr
Mar 24, 3:09 AM EDT	Lake Wind Advisory	GSP	Buncombe, Burke, Caldwell, Henderson, McDowell, Madison and 2 more	9 hr
Mar 24, 3:09 AM EDT	Wind Advisory	GSP	Avery, Burke, Caldwell, McDowell, Mitchell, Yancey	9 hr
Mar 24, 12:10 PM EDT	Lake Wind Advisory	GSP	Avery, Burke, Caldwell, McDowell, Mitchell, Yancey	6 hr

Nearby

Severe Thunderstorm Warnings in North Carolina, 2011 Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.