Alert archive / Virginia / Special Weather Statements in 2012

Special Weather Statement, NWS Blacksburg, VA

June 24, 2012Campbell County, Virginia

NWS Blacksburg, VA issued this special weather statement at Jun 24, 2012, 8:38 PM EDT for Campbell County, Virginia. It was in force for 52 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: Jun 24, 2012, 8:38 PM EDT (00:38 UTC)
Expired: Jun 24, 2012, 9:30 PM EDT
In force: 52 min
Issued by: NWS Blacksburg, VA

County Campbell County, VA

The radar

The Roanoke radar (KFCX), 114 km from the middle of the area, began a volume at 00:42 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.

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 00:00Z, 0.6 hours before the alert went out and 145 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: 61 J/kg
Mixed-layer CIN: -30 J/kg
Mixed-layer LCL: 1881 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 5 m²/s²
0-3 km storm-relative helicity: 56 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.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Jun 24, 8:02 PM EDT, 36 minutes earlier.

Area forecast discussion, Jun 24, 8:02 PM EDT, 36 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BLACKSBURG VA
802 PM EDT SUN JUN 24 2012

.SYNOPSIS...
AN UPPER LEVEL DISTURBANCE IS PASSING SOUTHEAST ACROSS THE REGION
THIS AFTERNOON AHEAD OF A STRONG COLD FRONT THAT WILL APPROACH
LATER TONIGHT INTO MONDAY. THIS FRONT SHOULD DIVE THROUGH THE AREA
LATER MONDAY FOLLOWED BY MUCH DRIER AND COOLER AIR FOR TUESDAY
INTO WEDNESDAY.

&&

.NEAR TERM /THROUGH MONDAY/...
AS OF 700 PM EDT SUNDAY...

CONVECTION REMAINS WIDELY SCATTERED EARLY THIS EVENING...AND
MODELS SHOWING SOME DISSIPATION AS WE HEAD INTO THE LATE EVENING
HOURS. HIGHER LAPSE RATES STILL RESIDE IN THE PIEDMONT...AND THIS
AREA SHOULD BE FAVRORED FOR ANOTHER HOUR OR TWO FOR CONTINUED
COVERAGE.

PREVIOUS DISCUSSION...

MODELS ARE NOT TO IMPRESSED WITH THE PASSING OF A COLD FRONT
ACROSS THE REGION TOMORROW. BEST FORCING AND MOISTURE ADVECTION IS
NORTH WITH THE SURFACE LOW AND SOUTH WITH TROPICAL STORM DEBBIE.
SINCE CONFIDENCE IS NOT HIGH...WILL KEEP POPS AT A CHANCE.
INTERESTING TO NOTE...LOOKING AT THE NAM WIND GRIDS...IT DISPLAYS
A SQUALL LINE COMING ACROSS THE WEST DURING THE EARLY
AFTERNOON...THEN IN THE EAST MID TO LATE AFTERNOON. HIGHEST WIND
SPEEDS ARE ONLY 25 MPH. SPC HAS RNK IN A SEE TEXT...SO LETS SEE
HOW THIS PANS OUT.

WITH THE LIMITED CHANCE OF SHOWERS AND THUNDERSTORMS...BY MODEL
STANDARDS...TEMPERATURES WILL ONCE AGAIN RUN ABOVE NORMAL ON MONDAY.
TEMPERATURES SHOULD BE IN THE LOWER 80S WEST TO NEAR 90F IN THE
EAST.

&&

.SHORT TERM /MONDAY NIGHT THROUGH WEDNESDAY NIGHT/...
AS OF 345 PM EDT SUNDAY...

BY MONDAY EVENING...THE COLD FRONT WILL BE SOUTH AND EAST OF OUR
AREA...AND WHILE WE MAY STILL SEE A FEW SHOWERS LINGERING ACROSS THE
PIEDMONT...CONDITIONS WILL STEADILY CONTINUE TO CLEAR AND EXPECT TO
SEE MOSTLY CLEAR SKIES ACROSS THE AREA DURING THE EARLY HOURS OF
TUESDAY.

LOOK FOR SUNNY SKIES ON TUESDAY AS A DOME OF CANADIAN HIGH PRESSURE
BUILDS SOUTHWARD FROM THE GREAT LAKES ACROSS OUR AREA. NORTHERLY
WINDS WILL HELP KEEP OUR TEMPERATURES A FEW DEGREES BELOW NORMAL
DURING THE AFTERNOON...WITH HIGHS RANGING FROM THE LOW TO MID 70S
ACROSS THE MOUNTAINS...TO AROUND 80 IN THE PIEDMONTS. LOWS WILL
GENERALLY BE IN THE 50S EXCEPT ALONG THE RIDGELINES...WHERE UPPER
40S ARE EXPECTED.

HIGH PRESSURE WILL MAINTAIN CONTROL OF OUR AREA ON WEDNESDAY...
RESULTING IN CONTINUED CLEAR SKIES AND LIGHT NORTHWESTERLY WINDS.
HOWEVER...WILL BEGIN TO SEE TEMPERATURES REBOUND AS AN UPPER LEVEL
RIDGE OF HIGH PRESSURE EDGES ITS WAY EASTWARD FROM THE GREAT PLAINS.
WEDNESDAY HIGHS WILL RANGE FROM THE UPPER 70S ACROSS THE
MOUNTAINS...TO THE MID 80S ACROSS THE PIEDMONTS.

&&

.LONG TERM /THURSDAY THROUGH SUNDAY/...
AS OF 345 PM EDT SUNDAY...

BY THURSDAY...THE UPPER LEVEL RIDGE CONTINUES TO BUILD ACROSS OUR
AREA...RESULTING IN WARMING TEMPERATURES EACH DAY THROUGH THE REST
OF THE WORKWEEK. AS SUCH...HIGHS BY FRIDAY ARE EXPECTED TO RANGE
FROM THE UPPER 80S AND LOWER 90S ACROSS THE MOUNTAINS...TO NEAR 100
DEGREES ACROSS THE PIEDMONT AS THE RIDGE BECOMES FIRMLY ESTABLISHED
ACROSS OUR AREA.

NOW...TO MAKE IT A LITTLE MORE FUN...LETS INTRODUCE THE UNCERTAINTY
IN THE TRACK OF TROPICAL STORM DEBBY...CURRENTLY FOUND IN THE GULF
OF MEXICO. THE LATEST FORECAST TAKES THE STORM INTO LOUISIANA BY
FRIDAY MORNING...STEERING CLEAR OF OUR AREA. HOWEVER...WITH NO
STRONG FEATURE IN PLACE TO DIRECT THE MOVEMENT OF DEBBY...IT IS NOT
IMPOSSIBLE FOR THE STORM TO MAKE LANDFALL A LITTLE FURTHER TO THE
EAST. SHOULD THE DEBRIS HIGH CLOUDS FROM THE STORM MOVE INTO OUR
AREA TOWARD THE END OF THE WEEK...THEY WILL DEFINITELY HAVE AN
IMPACT ON TEMPERATURES...MAKING THE CURRENT FORECAST FOR FRIDAY
AND PERHAPS SATURDAY TOO HIGH. WILL HAVE TO SEE WHICH TRACK THE
STORM TAKES OVER THE NEXT DAY OR TWO TO KNOW FOR SURE.

&&

.AVIATION /00Z MONDAY THROUGH FRIDAY/...
AS OF 74 PM EDT SUNDAY...

VFR CONDITIONS OUTSIDE OF SHRA THIS EVENING. EXPECT SOME SHRA
INVOF ROA/LYH/DAN/BLF THIS EVENING BUT OVERALL SEEING A DECREASE
IN INTENSITY. OVERNIGHT...WILL SEE MVFR VSBYS AT LOCATIONS THAT
HAD RAIN THIS AFTN...AND MAYBE EVEN IFR...AS DRIER AIR WITH THE
COLD FRONT WILL BE LAGGING UNTIL MONDAY.

A STRONG COLD FRONT SLIDES SOUTHEAST THRU THE AREA ON MONDAY WITH
PERHAPS ANOTHER ROUND OF SHRA/TSRA AND POTENTIAL SUB-VFR ESPCLY
SOUTHERN/EASTERN AREAS DURING THE AFTERNOON. WIDESPREAD VFR
FOLLOWS THE FRONT WITH GOOD FLYING WEATHER TUESDAY-THURSDAY.

&&

.RNK WATCHES/WARNINGS/ADVISORIES...
VA...NONE.
NC...NONE.
WV...NONE.

&&

SYNOPSIS...RCS
NEAR TERM...RCS/WP
SHORT TERM...NF
LONG TERM...NF
AVIATION...RCS/WP

Hazardous weather outlook, Jun 24, 3:47 PM EDT, 4 hours 51 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BLACKSBURG VA
347 PM EDT SUN JUN 24 2012

NCZ001>006-018>020-VAZ015>017-032-033-043>047-058-059-252000-
ASHE-ALLEGHANY NC-SURRY-STOKES-ROCKINGHAM-CASWELL-WATAUGA-WILKES-
YADKIN-GRAYSON-CARROLL-FLOYD-PATRICK-FRANKLIN-HENRY-PITTSYLVANIA-
CAMPBELL-APPOMATTOX-BUCKINGHAM-HALIFAX-CHARLOTTE-
347 PM EDT SUN JUN 24 2012

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...THIS AFTERNOON AND TONIGHT.

THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON AND
EVENING. ISOLATED TO SCATTERED THUNDERSTORMS HAVE DEVELOPED ALONG
THE MOUNTAINS THIS AFTERNOON. THESE STORMS WILL PROPAGATE EAST
INTO THE FOOTHILLS AND PIEDMONT COUNTIES BY EARLY THIS EVENING.
SOME OF THE STORMS MAY BE SEVERE WITH DAMAGING WINDS AND POSSIBLY
LARGE HAIL.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

THUNDERSTORMS ALONG A COLD FRONT MAY PRODUCE ISOLATED STRONG WINDS
AND HAIL MONDAY AFTERNOON.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

VAZ007-009>014-018>020-022>024-034-035-WVZ042>045-252000-
TAZEWELL-SMYTH-BLAND-GILES-WYTHE-PULASKI-MONTGOMERY-CRAIG-
ALLEGHANY VA-BATH-ROANOKE-BOTETOURT-ROCKBRIDGE-BEDFORD-AMHERST-
MERCER-SUMMERS-MONROE-GREENBRIER-
347 PM EDT SUN JUN 24 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL VIRGINIA...SOUTH
CENTRAL VIRGINIA...SOUTHWEST VIRGINIA...WEST CENTRAL VIRGINIA AND
SOUTHEAST WEST VIRGINIA.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

ISOLATED STRONG THUNDERSTORMS ARE POSSIBLE INTO EARLY THIS
EVENING. A FEW OF THE STORMS MAY BE SEVERE WITH DAMAGING WINDS
AND POSSIBLY LARGE HAIL.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

THUNDERSTORMS ALONG A COLD FRONT MAY PRODUCE ISOLATED STRONG WINDS
AND HAIL MONDAY AFTERNOON.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

RCS

In the hours before

Special weather statement, Jun 24, 6:07 PM EDT, 2 hours 31 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
607 PM EDT SUN JUN 24 2012

VAZ022-033-242245-
FRANKLIN VA-ROANOKE VA-
607 PM EDT SUN JUN 24 2012

...THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A SPECIAL
WEATHER STATEMENT FOR NORTHERN FRANKLIN AND SOUTHERN
ROANOKE COUNTIES UNTIL 645 PM EDT...

AT 604 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS
TRACKING A STRONG THUNDERSTORM NEAR BENT MOUNTAIN...MOVING EAST AT
20 MPH.

PEA SIZE HAIL AND WIND GUSTS UP TO 30 MPH ARE EXPECTED WITH THIS
STORM.

LOCATIONS IMPACTED INCLUDE...
BENT MOUNTAIN...                 BOONES MILL...
CAVE SPRING...                   POAGES MILL...

LAT...LON 3722 7984 3722 7981 3722 7980 3723 7978
      3721 7978 3719 7976 3719 7972 3715 7971
      3716 7968 3711 7965 3709 8011 3712 8013
      3711 8016 3721 8019 3725 7985
TIME...MOT...LOC 2204Z 268DEG 16KT 3715 8013

RAB

Special weather statement, Jun 24, 6:43 PM EDT, 1 hour 55 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
643 PM EDT SUN JUN 24 2012

NCZ003-004-VAZ016-032-242330-
STOKES NC-SURRY NC-PATRICK VA-CARROLL VA-
643 PM EDT SUN JUN 24 2012

...THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A SPECIAL
WEATHER STATEMENT FOR NORTHWESTERN STOKES...NORTHEASTERN SURRY...
SOUTHWESTERN PATRICK AND SOUTHEASTERN CARROLL
COUNTIES UNTIL 730 PM EDT...

AT 642 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS
TRACKING A STRONG THUNDERSTORM NEAR ARARAT...MOVING SOUTHEAST AT
20 MPH.

PEA SIZE HAIL AND WIND GUSTS UP TO 30 MPH ARE EXPECTED WITH THIS
STORM.

LOCATIONS IMPACTED INCLUDE...
ARARAT...                        FRANCISCO...
WESTFIELD...                     WOODVILLE...
COLLINSTOWN...

LAT...LON 3661 8063 3669 8052 3655 8026 3640 8044
TIME...MOT...LOC 2242Z 315DEG 16KT 3658 8052

RAB

Special weather statement, Jun 24, 6:48 PM EDT, 1 hour 50 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
648 PM EDT SUN JUN 24 2012

VAZ011-WVZ044-242330-
GILES VA-MONROE WV-
648 PM EDT SUN JUN 24 2012

...THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A SPECIAL
WEATHER STATEMENT FOR NORTHEASTERN GILES AND SOUTHEASTERN
MONROE COUNTIES
 UNTIL 730 PM EDT...

AT 646 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS
TRACKING A STRONG THUNDERSTORM NEAR ZENITH...OR 6 MILES SOUTH OF
UNION...MOVING EAST AT 10 MPH.

DIME SIZE HAIL AND WIND GUSTS UP TO 30 MPH ARE EXPECTED WITH THIS
STORM.

LOCATIONS IMPACTED INCLUDE...
GAP MILLS...                     LAUREL BRANCH...
WAITEVILLE...                    ZENITH...

LAT...LON 3763 8025 3760 8025 3757 8032 3755 8031
      3754 8033 3753 8031 3753 8028 3751 8030
      3749 8036 3744 8044 3747 8059 3753 8059
TIME...MOT...LOC 2246Z 278DEG 10KT 3749 8053

RAB

Special weather statement, Jun 24, 6:57 PM EDT, 1 hour 41 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
657 PM EDT SUN JUN 24 2012

VAZ022-023-034-242345-
BOTETOURT VA-BEDFORD VA-ROANOKE VA-
657 PM EDT SUN JUN 24 2012

...THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A SPECIAL
WEATHER STATEMENT FOR SOUTHWESTERN BOTETOURT...WEST CENTRAL BEDFORD
AND NORTHEASTERN ROANOKE COUNTIES UNTIL 745 PM EDT...

AT 655 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS
TRACKING A STRONG THUNDERSTORM NEAR HOLLINS...OR 3 MILES NORTH OF
ROANOKE...MOVING EAST AT 5 MPH.

DIME SIZE HAIL AND WIND GUSTS UP TO 30 MPH WILL BE POSSIBLE WITH
THIS STORM.

LOCATIONS IMPACTED INCLUDE...
STEWARTSVILLE...                 MONTVALE...
HOLLINS...                       VINTON...
GOODVIEW...                      BLUE RIDGE...
CHAMBLISSBURG...                 CLOVERDALE...
LAYMANTOWN...

LAT...LON 3743 7966 3716 7969 3717 7971 3719 7972
      3719 7973 3720 7978 3723 7978 3722 7980
      3729 7997 3736 7997
TIME...MOT...LOC 2255Z 273DEG 6KT 3732 7994

RAB

Local storm report, Jun 24, 7:41 PM EDT, 57 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BLACKSBURG VA
741 PM EDT SUN JUN 24 2012

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

0708 PM     TSTM WND DMG     1 ESE MOUNT AIRY        36.50N 80.60W
06/24/2012                   SURRY              NC   TRAINED SPOTTER

            SEVERAL LARGE TREE LIMBS DOWN ON ROUTE 103

0715 PM     HAIL             4 S ARARAT              36.53N 80.51W
06/24/2012  E1.00 INCH       SURRY              NC   TRAINED SPOTTER

            QUARTER SIZE HAIL ON SLATE MOUNTAIN ROAD

0720 PM     TSTM WND DMG     5 SSW ARARAT            36.52N 80.54W
06/24/2012                   SURRY              NC   TRAINED SPOTTER

            OAK TREE DOWN ACROSS LABRADOR LANE. POWER LINES ALSO
            DOWN.

&&

MBS

Special weather statement, Jun 24, 8:38 PM EDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
838 PM EDT SUN JUN 24 2012

VAZ045-250130-
CAMPBELL VA-
838 PM EDT SUN JUN 24 2012

...THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A SPECIAL
WEATHER STATEMENT FOR CAMPBELL COUNTY UNTIL 930 PM EDT...

AT 837 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS
TRACKING A CLUSTER OF STRONG THUNDERSTORMS ACROSS CAMBPELL COUNTY
NEAR RUSTBURG...GLADYS...AND JUST WEST OF BROOKNEAL...MOVING NORTHEAST
AT 25 MPH.

PEA SIZE HAIL WILL BE POSSIBLE WITH THE STRONGER STORMS. VERY HEAVY RAIN
CAN BE EXPECTED WITH SEVERAL OF THESE STORMS...WHICH WILL CAUSE PONDING OF
WATER OF ON ROADS AND CAUSE ROADSIDE DITCHES AND SMALL STREAMS TO REACH
BANKFUL.

LOCATIONS IMPACTED INCLUDE...
CONCORD...                       RUSTBURG...
BROOKNEAL...                     SPRING MILLS...
GLADYS...                        HAT CREEK...
LONG ISLAND...                   MIKE...

LAT...LON 3702 7891 3705 7897 3704 7899 3707 7911
      3709 7912 3708 7915 3724 7926 3737 7909
      3741 7901 3725 7892 3724 7886 3722 7886
      3721 7883
TIME...MOT...LOC 0037Z 241DEG 23KT 3720 7913

RAB

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 24, 10:17 PM EDT	Special Weather Statement	RNK	Roanoke, City of Roanoke, City of Salem	43 min
Jun 25, 1:32 PM EDT	Special Weather Statement	RNK	Amherst, City of Buena Vista	28 min
Jun 25, 2:16 PM EDT	Special Weather Statement	RNK	Amherst, Appomattox	44 min
Jun 25, 2:29 PM EDT	Severe Thunderstorm Warning	RNK	Buckingham	35 min
Jun 25, 3:08 PM EDT	Special Weather Statement	RNK	Appomattox	22 min
Jun 24, 9:16 PM EDT	Special Weather Statement	RNK	Rockingham	44 min
Jun 24, 9:26 PM EDT	Severe Thunderstorm Warning	RNK	Rockingham	49 min

Nearby

Special Weather Statements in Virginia, 2012 Every special weather statement in 2012

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.