Alert archive / Virginia / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 221, NWS Blacksburg, VA

May 27, 2011Caswell County, Rockingham County, Stokes County, North Carolina; 5 counties in Virginia

NWS Blacksburg, VA issued this severe thunderstorm warning at May 27, 2011, 2:18 PM EDT for Caswell County, Rockingham County, Stokes County, North Carolina; 5 counties in Virginia. It was in force for 57 min. 2 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: May 27, 2011, 2:18 PM EDT (18:18 UTC)
Expired: May 27, 2011, 3:15 PM EDT
In force: 57 min
Issued by: NWS Blacksburg, VA
Area: Storm-based polygon

Counties Caswell County, NC, Rockingham County, NC, Stokes County, NC, City of Danville, VA, City of Martinsville, VA, Franklin County, VA, Henry County, VA, Pittsylvania County, VA

The radar

The Roanoke radar (KFCX), 65 km from the middle of the area, began a volume at 18:20 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
May 27, 2:30 PM EDT	TSTM WND DMG	Eden, NC	TREES DOWN ALL OVER TOWN.
May 27, 3:15 PM EDT	HAIL 0.5	Dry Fork, VA	5 S OF CHATHAM

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched one storm report to this severe thunderstorm warning; the first came 12 minutes after it went out.

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
May 27, 12:06 PM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 6.3 hours before the alert went out and 51 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: 31 J/kg
Mixed-layer CIN: -292 J/kg
Mixed-layer LCL: 831 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 93 m²/s²
0-3 km storm-relative helicity: 106 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

920 
WUUS51 KRNK 271818
SVRRNK
NCC033-157-169-VAC067-089-143-590-690-271915-
/O.NEW.KRNK.SV.W.0221.110527T1818Z-110527T1915Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BLACKSBURG VA
218 PM EDT FRI MAY 27 2011

THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN CASWELL COUNTY IN NORTH CENTRAL NORTH CAROLINA
  ROCKINGHAM COUNTY IN NORTH CENTRAL NORTH CAROLINA
  EASTERN STOKES COUNTY IN NORTH CENTRAL NORTH CAROLINA
  PITTSYLVANIA COUNTY IN SOUTH CENTRAL VIRGINIA
  CITY OF DANVILLE IN SOUTH CENTRAL VIRGINIA
  CITY OF MARTINSVILLE IN SOUTH CENTRAL VIRGINIA
  HENRY COUNTY IN SOUTH CENTRAL VIRGINIA
  SOUTHEASTERN FRANKLIN COUNTY IN WEST CENTRAL VIRGINIA

* UNTIL 315 PM EDT.

* AT 215 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING ONE INCH DIAMETER HAIL...
  AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED
  NEAR BELLEWS LAKE...OR NEAR BELEWS CREEK...AND MOVING NORTHEAST AT
  40 MPH.

* LOCATIONS IMPACTED INCLUDE...
  ELLISBORO...
  INTELLIGENCE...
  STONEVILLE...
  AXTON...
  SANDY RIVER...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

WHEN IT IS SAFE TO DO SO...PLEASE SEND YOUR REPORTS OF QUARTER OR
LARGER SIZED HAIL...AS WELL AS WIND DAMAGE...INCLUDING TREES OR LARGE
LIMBS DOWNED BY CALLING THE NATIONAL WEATHER SERVICE TOLL FREE AT...
1...8 6 6...2 1 5...4 3 2 4.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 700 PM EDT FRIDAY
EVENING FOR NORTH CENTRAL NORTH CAROLINA AND SOUTHWESTERN VIRGINIA.

&&

LAT...LON 3625 8024 3626 8026 3654 8009 3655 8005
      3662 8005 3705 7979 3682 7915 3678 7916
      3624 7967
TIME...MOT...LOC 1818Z 209DEG 36KT 3630 7998

$$

KK

3 follow-up statements

794 
WWUS51 KRNK 271834
SVSRNK

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
234 PM EDT FRI MAY 27 2011

NCC169-271842-
/O.CAN.KRNK.SV.W.0221.000000T0000Z-110527T1915Z/
STOKES NC-
234 PM EDT FRI MAY 27 2011

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN STOKES COUNTY IS
CANCELLED...

THE STORM THAT PROMPTED THE WARNING IS NO LONGER A THREAT TO STOKES 
COUNTY. THEREFORE...THE WARNING HAS BEEN CANCELLED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

&&

LAT...LON 3626 8004 3654 8002 3655 8005 3662 8005
      3705 7979 3682 7915 3678 7916 3624 7967
TIME...MOT...LOC 1832Z 209DEG 36KT 3639 7985

$$

NCC033-157-VAC067-089-143-590-690-271915-
/O.CON.KRNK.SV.W.0221.000000T0000Z-110527T1915Z/
CASWELL NC-ROCKINGHAM NC-PITTSYLVANIA VA-CITY OF DANVILLE VA-
CITY OF MARTINSVILLE VA-HENRY VA-FRANKLIN VA-
234 PM EDT FRI MAY 27 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 315 PM EDT
FOR THE CITY OF DANVILLE...THE CITY OF MARTINSVILLE... SOUTHEASTERN
FRANKLIN...HENRY...PITTSYLVANIA...ROCKINGHAM AND NORTHWESTERN CASWELL
COUNTIES...

AT 228 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR INTELLIGENCE...OR 6 
MILES EAST OF MADISON...MOVING NORTHEAST AT 40 MPH. A SECOND 
POTENTIALLY SEVERE STORM WAS DEVELOPING JUST SOUTHWEST OF THE CITY 
OF DANVILLE NEAR PELHAM NORTH CAROLINA. IT ALSO WAS MOVING NORTHEAST 
AT 40 MPH AND WILL CROSS THE CITY OF DANVILLE. 

LOCATIONS IMPACTED INCLUDE...
  EDEN...
  AIKEN SUMMIT...
  AXTON...
  SANDY RIVER...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF SEVERE WEATHER APPROACHES YOUR AREA...GO INSIDE A STURDY SHELTER.
REMEMBER...A SEVERE THUNDERSTORM CAN PRODUCE LARGE DAMAGING HAIL...
DAMAGING WINDS IN EXCESS OF 55 MPH...DEADLY LIGHTNING...AND VERY
HEAVY RAIN.

&&

LAT...LON 3626 8004 3654 8002 3655 8005 3662 8005
      3705 7979 3682 7915 3678 7916 3624 7967
TIME...MOT...LOC 1832Z 209DEG 36KT 3639 7985

$$

DS

817 
WWUS51 KRNK 271850
SVSRNK

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
250 PM EDT FRI MAY 27 2011

VAC690-271858-
/O.CAN.KRNK.SV.W.0221.000000T0000Z-110527T1915Z/
CITY OF MARTINSVILLE VA-
250 PM EDT FRI MAY 27 2011

...THE SEVERE THUNDERSTORM WARNING FOR THE CITY OF MARTINSVILLE... IS
CANCELLED...

THE STORM THAT PROMPTED THE WARNING IS EXPECTED TO REMAIN EAST OF 
THE CITY OF MARTINSVILLE. THEREFORE...THE WARNING HAS BEEN CANCELLED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

&&

LAT...LON 3640 7979 3656 7986 3700 7967 3682 7915
      3678 7916 3640 7952
TIME...MOT...LOC 1848Z 215DEG 39KT 3652 7969

$$

NCC033-157-VAC067-089-143-590-271915-
/O.CON.KRNK.SV.W.0221.000000T0000Z-110527T1915Z/
CASWELL NC-ROCKINGHAM NC-PITTSYLVANIA VA-CITY OF DANVILLE VA-HENRY 
VA-FRANKLIN VA-
250 PM EDT FRI MAY 27 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 315 PM EDT
FOR THE CITY OF DANVILLE... SOUTHEASTERN FRANKLIN...EASTERN HENRY...
PITTSYLVANIA...NORTHEASTERN ROCKINGHAM AND NORTHWESTERN CASWELL
COUNTIES...

AT 245 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR EDEN...MOVING 
NORTHEAST AT 45 MPH. ANOTHER POTENTIALLY SEVERE STORM WAS OVER THE 
CITY OF DANVILLE...ALSO MOVING NORTHEAST AT 45 MPH.

LOCATIONS IMPACTED INCLUDE...
  CASCADE...
  AIKEN SUMMIT...
  SANDY RIVER...
  SWANSONVILLE...
  DRY FORK...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF SEVERE WEATHER APPROACHES YOUR AREA...GO INSIDE A STURDY SHELTER.
REMEMBER...A SEVERE THUNDERSTORM CAN PRODUCE LARGE DAMAGING HAIL...
DAMAGING WINDS IN EXCESS OF 55 MPH...DEADLY LIGHTNING...AND VERY
HEAVY RAIN.

&&

LAT...LON 3640 7979 3656 7986 3700 7967 3682 7915
      3678 7916 3640 7952
TIME...MOT...LOC 1848Z 215DEG 39KT 3652 7969

$$

DS

578 
WWUS51 KRNK 271903
SVSRNK

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
303 PM EDT FRI MAY 27 2011

VAC067-271913-
/O.CAN.KRNK.SV.W.0221.000000T0000Z-110527T1915Z/
FRANKLIN VA-
303 PM EDT FRI MAY 27 2011

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN FRANKLIN COUNTY
IS CANCELLED...

THE STORM THAT PROMPTED THE WARNING IS EXPECTED TO REMAIN EAST OF 
THE COUNTY. THEREFORE...THE WARNING HAS BEEN CANCELLED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

&&

LAT...LON 3654 7968 3656 7986 3679 7976 3688 7959
      3682 7928 3672 7922 3640 7952
TIME...MOT...LOC 1903Z 215DEG 39KT 3666 7954

$$

NCC033-157-VAC089-143-590-271915-
/O.CON.KRNK.SV.W.0221.000000T0000Z-110527T1915Z/
CASWELL NC-ROCKINGHAM NC-PITTSYLVANIA VA-CITY OF DANVILLE VA-HENRY 
303 PM EDT FRI MAY 27 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 315 PM EDT
FOR THE CITY OF DANVILLE... EASTERN HENRY...SOUTHERN PITTSYLVANIA...
NORTHEASTERN ROCKINGHAM AND NORTHWESTERN CASWELL COUNTIES...

AT 258 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH.  THIS STORM WAS LOCATED 6 MILES NORTHEAST OF
CASCADE...OR 7 MILES NORTH OF MAYFIELD...MOVING NORTHEAST AT 45 MPH.

LOCATIONS IMPACTED INCLUDE...
  SWANSONVILLE...
  BLAIRS...
  DRY FORK...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO DAMAGING WINDS...CONTINUOUS CLOUD TO GROUND LIGHTNING 
IS OCCURRING WITH THIS STORM. MOVE INDOORS IMMEDIATELY! LIGHTNING IS 
ONE OF NATURES NUMBER ONE KILLERS. REMEMBER...IF YOU CAN HEAR 
THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING.

&&

LAT...LON 3654 7968 3656 7986 3679 7976 3688 7959
      3682 7928 3672 7922 3640 7952
TIME...MOT...LOC 1903Z 215DEG 39KT 3666 7954

$$

DS

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 Blacksburg, VA wrote its last area forecast discussion before this severe thunderstorm warning went out at May 27, 11:54 AM EDT, 2 hours 24 minutes earlier.

Area forecast discussion, May 27, 11:54 AM EDT, 2 hours 24 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BLACKSBURG VA
1154 AM EDT FRI MAY 27 2011

.SYNOPSIS...
AN UPPER LEVEL LOW THAT WILL WEAKEN AS IT APPROACHES THE EASTERN GREAT
LAKES WILL PRODUCE MORE SHOWERS AND THUNDERSTORMS ACROSS THE REGION
THIS AFTERNOON AND TONIGHT.

AN UPPER LEVEL HIGH PRESSURE SYSTEM WILL BUILD OVER THE AREA SATURDAY
INTO THE MIDDLE OF NEXT WEEK...REDUCING THE THREAT OF RAIN...BUT
BRINGING A STRETCH OF VERY WARM AND HUMID WEATHER.

&&

.NEAR TERM /THROUGH TONIGHT/...
AN UPPER TROUGH WILL TRACK EASTWARD ACROSS THE REGION THIS AFTERNOON
INTO TONIGHT. SEVERAL MID LEVEL SHORTWAVES WERE NOTED ON SATELLITE
IMAGES. ONE LOCATED ACROSS SC/GA TRIGGERING SHOWERS AND
THUNDERSTORMS ACROSS CENTRAL NORTH CAROLINA ALREADY. ANOTHER
SHORTWAVE IN TN RESULTING IN SHOWERS AND THUNDERSTORMS ACROSS
WESTERN PORTIONS OF CWA. THUNDERSTORMS WITH HEAVY RAINS OR
TRAINING OF STORMS CAN CREATE FLASH FLOODING.

.PREVIOUS DISCUSSION...
ISSUED A QUICK UPDATE TO INCREASE POPS FOR THIS MORNING INTO THIS
AFTERNOON PER LATEST RADAR AND MODEL TRENDS. SPC HAS EXPANDED THE
DAY1 SLIGHT RISK SOUTH INTO EASTERN PORTIONS OF CWA. CURRENT FLASH
FLOOD WATCH LOOKS GOOD WITH RECENT RAINS...LOW FFG AND SATURATED
GROUND. WILL REVIEW 12Z RUNS FOR ADDITIONAL CHANGES THIS
AFTERNOON.

.PREVIOUS DISCUSSION...
RADAR SHOWED JUST SCATTERED IN THE WESTERN COUNTY WARNING AREA
AFTER NUMEROUS SHOWERS AND THUNDERSTORMS COVERED THE FORECAST AREA
WEST OF THE BLUE RIDGE THURSDAY AFTERNOON AND EVENING.

WATER VAPOR LOOP SHOWED THE UPPER LOW OVER THE OHIO VALLEY WAS
BEGINNING TO BE SHEARED APART BUT MAIN TROF AXIS WAS STILL OVER
THE TENNESSEE VALLEY WITH A FAIRLY WELL DEFINED SHORT WAVE IN
CENTRAL KENTUCKY. EXPECT MORE SHOWERS AND THUNDERSTORMS TO DEVELOP
THIS AFTERNOON ALONG THE SAME AXIS AS ON THURSDAY. AREAS THAT GET
SUNSHINE THIS MORNING MAY BE ABLE TO REALIZE CAPES AROUND 1200
J/KG BUT WINDS THROUGH THE MID LEVELS OF THE ATMOSPHERE WILL NOT
BE AS STRONG AS ON THURSDAY AND WITHOUT THE AIDE OF AN UPPER JET
STREAK THE THREAT OF SEVERE THUNDERSTORMS TODAY IS LOWER.
DIFFERENT SOLUTIONS IN BUFKIT SHOWED A CAP AT LYH AND DAN WHICH
MAY BE INDICATING TIMING OF THE STORMS MOVING EAST IS
QUESTIONABLE. FOR NOW WILL GO WITH MORE STORMS IN THE EAST AFTER
18Z/2PM TO 21Z/5PM.

AREAL COVERAGE AND INTENSITY OF SHOWERS AND THUNDERSTORMS WILL
DIMINISH AFTER 03Z/9PM BUT IT MAY TAKE UNTIL LATE TONIGHT TO
COMPLETELY CLEAR OUT THE PRECIPITATION.

THE BAND OF SHOWERS AND THUNDERSTORMS FROM THURSDAY PRODUCED 1.5
TO 3 INCHES OF RAIN WITH LOCALLY HIGH AMOUNTS FROM SOUTHERN
PULASKI COUNTY TO WESTERN WILKES COUNTY AND FROM EASTERN
GREENBRIER COUNTY INTO NORTHWEST BATH COUNTY. NEW 3 HOUR FLASH
FLOOD GUIDANCE THROUGH THE NEW RIVER BASIN AND THE GREENBRIER
RIVER BASIN IS LESS THAN ONE INCH. SO WITH THE ADDITIONAL STORMS
EXPECTED TODAY WILL BE ISSUING A FLASH FLOOD WATCH MOST OF THE
COUNTIES WEST OF THE BLUE RIDGE.

WILL BE STARTING WITH MORE CLOUDS TODAY AND STARTING WITH
TEMPERATURES IN THE MID 50S TO MID 60S. PLUS 850 MB TEMPERATURES
ARE SLIGHTLY LOWER TODAY SO MAXIMUM TEMPERATURES WILL BE COOLER
THAN THURSDAY. TOOK A BLEND OF MAV/MET GUIDANCE FOR HIGHS. ALSO
USED A BLEND OF GUIDANCE FOR LOWS TONIGHT.

&&

.SHORT TERM /SATURDAY THROUGH MONDAY NIGHT/...
A STRONG UPPER RIDGE WILL BUILD THROUGH THE MISSISSIPPI RIVER
VALLEY AND EVENTUALLY CUTOFF AND UPPER HIGH JUST TO OUR WEST...ON
THE KY/TN BORDER. THE ORIENTATION OF THIS UPPER RIDGE IS ONE THAT
STILL ALLOWS FOR SURFACE CONVERGENCE ALONG THE APPALACHIAN
MOUNTAINS THANKS TO RESULTING SOUTHEASTERLY SURFACE WINDS. FOR THIS
REASON...CONTINUED THE 15-25% POPS THROUGH THE WEEKEND...WITH THE
BEST CHC ALONG NW NC HIGHLANDS AND EXTREME SW VA. PER THE
ECMWF...AS THE UPPER RIDGE STRENGTHENS TO 595DM BY 0Z
TUESDAY...THIS SE SURFACE FLOW WILL BE ERASED AND THE OPPORTUNITY
FOR ELEVATED CONVECTION ALONG THE RIDGES WILL BE REDUCED...AS
MID LEVELS TEMPS WARM. CONSIDERING A SATURATED GROUND...SOME OF
THESE ISOLATED CELLS COULD BE VERY SLOW MOVERS AND PRODUCE
AMOUNTS OF RAIN SUCH THAT WATER PROBLEMS MAY ARISE. MONDAY WILL
EASILY BE THE WARMEST DAY WITH H85 TEMPS NEAR +20C.

&&

.LONG TERM /TUESDAY THROUGH THURSDAY/...
MEDIUM RANGE MODELS ARE IN GOOD AGREEMENT BUILDING AN UPPER RIDGE
OVER THE AREA EARLY IN THE LONG TERM PERIOD...BEFORE AN UPPER LEVEL
SHORTWAVE MOVING ALONG THE U.S./CANADA BORDER FLATTENS THE RIDGE
WEDNESDAY INTO THURSDAY.

THE BIG WEATHER STORY EARLY IN THE WORK WEEK WILL BE THE NEAR RECORD
TEMPERATURES...AS GEFS ENSEMBLES SHOW 850MB TEMPS 2-3 STANDARD
DEVIATIONS ABOVE NORMAL. AS A RESULT...WENT A COUPLE OF DEGREES
ABOVE FORECAST GUIDANCE. WHILE MOST AREAS WILL REMAIN DRY...KEPT
A SMALL CHANCE FOR MOUNTAIN THUNDERSTORMS TUESDAY/WEDNESDAY WITH
INSTABILITY...WEAK LIFT GENERATED BY THE INFLUENCE OF TERRAIN...AND
THETA-E AXIS IN PLACE.

LOW LEVEL NORTHEAST/EASTERLY FLOW ARRIVES WEDNESDAY NIGHT AND
THURSDAY BRINGING COOLER AND MAINLY DRIER AIR...BUT WEAK UPSLOPE
FLOW MAY GENERATED WIDELY SCATTERED MOUNTAIN SHOWERS/STORMS.

&&

.AVIATION /16Z FRIDAY THROUGH TUESDAY/...
NUMEROUS SHOWERS AND THUNDERSTORMS ARE EXPECTED THIS AFTERNOON. MVFR
WITH LOCAL IFR CONDITIONS POSSIBLE IN CLOUDS AND CONVECTION.
WEAKENING UPPER LEVEL TROUGH WILL SLOWLY MOVE EAST ACROSS THE AREA
THIS PERIOD.

MODELS ARE BRINGING IN SOME MVFR TO POSSIBLY IFR CEILINGS AND FOG
BEHIND THE STORMS FOR LATE TONIGHT INTO SATURDAY MORNING.
CONDITIONS MAY REMAIN POOR THROUGH SATURDAY NIGHT. THEN AS HIGH
PRESSURE BUILDS INTO THE AREA SUNDAY CONDITIONS WILL RETURN TO
VFR.

RELATIVELY STAGNANT AIR MASS WILL THEN LINGER OVER THE TERMINAL
FORECAST AREA SUNDAY INTO TUESDAY AS AN UPPER RIDGE OF HIGH
PRESSURE BUILDS OVER THE AREA. TYPICALLY...THIS RESULTS IN
BUILDING HEAT AND HUMIDITY...CHARACTERIZED BY AT LEAST LATE NIGHT
TO MID MORNING MVFR TO IFR FLIGHT RESTRICTIONS DUE TO FOG...GIVING
WAY TO VFR WEATHER BY LATE MORNING/EARLY AFTERNOON AS ATMOSPHERE
BECOMES HEATED AND BETTER MIXED. HOWEVER...THE THREAT OF ISOLATED
FLIGHT RESTRICTIONS BACK INTO THE MVFR RANGE IN THE VICINITY OF
AFTERNOON/EVENING SHOWERS/THUNDERSTORMS CAN NOT BE RULED OUT
ENTIRELY...ESPECIALLY ALONG/NEAR SOME OF THE HIGHER RIDGES.

&&

.RNK WATCHES/WARNINGS/ADVISORIES...
VA...FLASH FLOOD WATCH THROUGH THIS EVENING FOR VAZ010>020.
NC...FLASH FLOOD WATCH THROUGH THIS EVENING FOR NCZ001>003-018-019.
WV...FLASH FLOOD WATCH THROUGH THIS EVENING FOR WVZ042>045.

&&

SYNOPSIS...AMS
NEAR TERM...AMS/KK
SHORT TERM...KM
LONG TERM...PH
AVIATION...AMS/KK

Hazardous weather outlook, May 27, 9:13 AM EDT, 5 hours 5 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BLACKSBURG VA
913 AM EDT FRI MAY 27 2011

VAZ007-009-281315-
TAZEWELL-SMYTH-
913 AM EDT FRI MAY 27 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHWEST VIRGINIA.

.DAY ONE...TODAY AND TONIGHT.

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

NCZ001>003-018-019-VAZ010>020-WVZ042>045-281315-
ASHE-ALLEGHANY NC-SURRY-WATAUGA-WILKES-BLAND-GILES-WYTHE-PULASKI-
MONTGOMERY-GRAYSON-CARROLL-FLOYD-CRAIG-ALLEGHANY VA-BATH-MERCER-
SUMMERS-MONROE-GREENBRIER-
913 AM EDT FRI MAY 27 2011

...FLASH FLOOD WATCH IN EFFECT THROUGH THIS EVENING...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL NORTH
CAROLINA...NORTHWEST NORTH CAROLINA...SOUTHWEST VIRGINIA...WEST
CENTRAL VIRGINIA AND SOUTHEAST WEST VIRGINIA.

.DAY ONE...TODAY AND TONIGHT.

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

   FLASH FLOOD WATCH.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

NCZ004>006-020-VAZ022>024-032>035-043>047-058-059-281315-
STOKES-ROCKINGHAM-CASWELL-YADKIN-ROANOKE-BOTETOURT-ROCKBRIDGE-
PATRICK-FRANKLIN-BEDFORD-AMHERST-HENRY-PITTSYLVANIA-CAMPBELL-
APPOMATTOX-BUCKINGHAM-HALIFAX-CHARLOTTE-
913 AM EDT FRI MAY 27 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL NORTH
CAROLINA...NORTHWEST NORTH CAROLINA...CENTRAL VIRGINIA...SOUTH
CENTRAL VIRGINIA...SOUTHWEST VIRGINIA AND WEST CENTRAL VIRGINIA.

.DAY ONE...TODAY AND TONIGHT.

SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED DURING THE MID TO
LATE AFTERNOON AND EVENING. A FEW THUNDERSTORMS MAY BECOME
SEVERE...WITH LARGE HAIL AND DAMAGING WIND GUSTS AS THE
PRIMARY THREATS.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

In the hours before

Local storm report, May 27, 12:01 PM EDT, 2 hours 17 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BLACKSBURG VA
1201 PM EDT FRI MAY 27 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1107 PM     TSTM WND DMG     5 SE YADKINVILLE        36.08N 80.61W
05/26/2011                   YADKIN             NC   BROADCAST MEDIA

            ROOF BLOWN OFF STRUCTURE ON BRAWLEY ROAD...ADDITIONAL
            STRUCTURAL DAMAGE ON WYO ROAD.

&&

HYSELL

Local storm report, May 27, 12:22 PM EDT, 1 hour 56 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BLACKSBURG VA
1222 PM EDT FRI MAY 27 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0930 PM     TSTM WND DMG     2 ESE MAPLE SPGS        36.17N 81.35W
05/26/2011                   WILKES             NC   DEPT OF HIGHWAYS

            TREE DOWN ON BOONE TRAIL NEAR HIGHWAY 421

0935 PM     TSTM WND DMG     5 WNW WILKESBORO        36.16N 81.26W
05/26/2011                   WILKES             NC   DEPT OF HIGHWAYS

            TWO TREES DOWN ON CONGO ROAD IN MILLERS CREEK AREA

0938 PM     TSTM WND DMG     5 SE WILBAR             36.22N 81.26W
05/26/2011                   WILKES             NC   DEPT OF HIGHWAYS

            TREE DOWN ON CHARITY CHURCH ROAD NEAR SHINGLE GAP ROAD.

0945 PM     TSTM WND DMG     3 SSW NORTH WILKESBORO  36.13N 81.16W
05/26/2011                   WILKES             NC   DEPT OF HIGHWAYS

            TREE DOWN ON HIGHWAY 16/18 NEAR U.S. 421

0946 PM     TSTM WND DMG     5 WNW NORTH WILKESBORO  36.20N 81.22W
05/26/2011                   WILKES             NC   DEPT OF HIGHWAYS

            TREE DOWN ON GRANDVIEW DRIVE IN MILLERS CREEK AREA

0955 PM     TSTM WND DMG     2 WNW DEEP GAP          36.24N 81.55W
05/26/2011                   WATAUGA            NC   DEPT OF HIGHWAYS

            TREE DOWN ON ELLEDGE MILL ROAD

&&

SK

Special weather statement, May 27, 1:21 PM EDT, 57 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
121 PM EDT FRI MAY 27 2011

VAZ045-058-059-271815-
CAMPBELL VA-CHARLOTTE VA-HALIFAX VA-
121 PM EDT FRI MAY 27 2011

...A STRONG THUNDERSTORM WILL AFFECT CAMPBELL...CHARLOTTE AND HALIFAX
COUNTIES...

AT 119 PM EDT...A STRONG THUNDERSTORM WAS LOCATED OVER ROXBORO...
MOVING NORTH AT 25 MPH.

WIND GUSTS TO 50 MPH AND SMALL HAIL ARE POSSIBLE WITH THIS STORM.

THIS STORM WILL BE NEAR ALTON AROUND 145 PM...TURBEVILLE AROUND 150
PM...CLUSTER SPRINGS AROUND 155 PM...HITESBURG AROUND 200 PM...SOUTH
BOSTON AROUND 210 PM AND HALIFAX AROUND 215 PM.

LISTEN TO NOAA WEATHER RADIO OR YOUR FAVORITE MEDIA OUTLET FOR LATER
UPDATES OR POSSIBLE WARNINGS.

LAT...LON 3689 7848 3670 7864 3668 7862 3663 7855
      3663 7858 3669 7865 3669 7867 3665 7870
      3661 7870 3654 7873 3654 7912 3713 7904
      3700 7846

KK

Local storm report, May 27, 1:46 PM EDT, 32 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BLACKSBURG VA
146 PM EDT FRI MAY 27 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1020 PM     TSTM WND DMG     2 WNW FRIES             36.73N 80.99W
05/26/2011                   GRAYSON            VA   DEPT OF HIGHWAYS

            TREE DOWN ON WINDING ROAD

1020 PM     TSTM WND DMG     2 NW FRIES              36.73N 81.00W
05/26/2011                   GRAYSON            VA   DEPT OF HIGHWAYS

            TREE DOWN ON STEVENS CREEK ROAD

&&

SK

Local storm report, May 27, 1:53 PM EDT, 25 minutes before

PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE BLACKSBURG VA
153 PM EDT FRI MAY 27 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0955 PM     TSTM WND DMG     5 N NORTH WILKESBORO    36.24N 81.15W
05/26/2011                   WILKES             NC   DEPT OF HIGHWAYS

            TREE DOWN ON ELLEDGE MILL ROAD

&&

SK

Local storm report, May 27, 2:03 PM EDT, 15 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BLACKSBURG VA
203 PM EDT FRI MAY 27 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0824 PM     TSTM WND DMG     3 ENE PEARISBURG        37.34N 80.69W
05/26/2011                   GILES              VA   DEPT OF HIGHWAYS

            TREE DOWN ON STATE ROUTE 636

0829 PM     TSTM WND DMG     4 W MOUNTAIN LAKE       37.35N 80.62W
05/26/2011                   GILES              VA   DEPT OF HIGHWAYS

            TREE DOWN ON STATE ROUTE 623

&&

SK

The office that day

Everything else NWS Blacksburg, VA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 26, 8:16 PM EDT	Severe Thunderstorm Warning	RNK	Alleghany, Ashe, Surry, Watauga, Wilkes	59 min
May 26, 9:04 PM EDT	Flash Flood Warning	RNK	Alleghany, Ashe, Surry, Wilkes	4 hr
May 26, 9:15 PM EDT	Severe Thunderstorm Warning	RNK	Alleghany, Surry, Wilkes	60 min
May 26, 9:17 PM EDT	Severe Thunderstorm Warning	RNK	Wilkes	48 min
May 26, 9:38 PM EDT	Severe Thunderstorm Warning	RNK	Alleghany, Surry, Wilkes	67 min
May 26, 10:17 PM EDT	Severe Thunderstorm Warning	RNK	Surry	58 min
May 26, 10:52 PM EDT	Severe Thunderstorm Warning	RNK	Rockingham, Stokes, Surry, Wilkes, Yadkin	53 min
May 26, 10:58 PM EDT	Severe Thunderstorm Warning	RNK	Surry	62 min
May 27, 6:08 AM EDT	Flash Flood Watch	RNK	Alleghany, Ashe, Surry, Watauga, Wilkes	16 hr
May 26, 8:03 PM EDT	Severe Thunderstorm Warning	RNK	Carroll, Pulaski, Wythe, City of Galax	42 min
May 26, 8:12 PM EDT	Severe Thunderstorm Warning	RNK	Bland, Carroll, Grayson, Pulaski, Wythe	48 min
May 26, 8:15 PM EDT	Severe Thunderstorm Warning	RNK	Craig, Giles, Pulaski	44 min
May 26, 8:43 PM EDT	Severe Thunderstorm Warning	RNK	Carroll, Floyd, Montgomery, Pulaski, Wythe, City of Radford	62 min
May 26, 8:57 PM EDT	Severe Thunderstorm Warning	RNK	Alleghany, Botetourt, Craig, Montgomery, Roanoke, City of Covington and 2 more	63 min
May 26, 10:25 PM EDT	Severe Thunderstorm Warning	RNK	Alleghany, Bath, Botetourt, City of Covington	48 min
May 26, 10:36 PM EDT	Flash Flood Warning	RNK	Alleghany, Bath, Botetourt, Craig, Floyd, Giles and 5 more	6 hr
May 27, 12:09 AM EDT	Special Weather Statement	RNK	Bedford, Botetourt, Franklin, City of Martinsville, City of Roanoke, City of Salem	36 min
May 27, 12:13 AM EDT	Severe Thunderstorm Warning	RNK	Amherst, Bedford, Botetourt, Campbell, Franklin, Pittsylvania and 2 more	47 min
May 27, 12:40 AM EDT	Severe Thunderstorm Warning	RNK	Alleghany, Bath, Bedford, Botetourt, Roanoke, Rockbridge	50 min
May 27, 1:13 AM EDT	Special Weather Statement	RNK	Rockbridge, City of Buena Vista, City of Lexington	17 min
May 27, 1:21 PM EDT	Special Weather Statement	RNK	Charlotte, Halifax	54 min
May 27, 2:54 PM EDT	Areal Flood Advisory	RNK	City of Danville	3 hr
May 27, 3:15 PM EDT	Severe Thunderstorm Warning	RNK	Appomattox, Bedford, Campbell, Charlotte, Halifax, Pittsylvania and 1 more	60 min
May 27, 3:52 PM EDT	Areal Flood Advisory	RNK	City of Lynchburg	3 hr

Nearby

Severe Thunderstorm Warnings in Virginia, 2011 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.