Alert archive / Virginia / Special Weather Statements in 2012

Special Weather Statement, NWS Blacksburg, VA

July 15, 2012Rockbridge County, City of Buena Vista, City of Lexington, Virginia

NWS Blacksburg, VA issued this special weather statement at Jul 15, 2012, 9:08 PM EDT for Rockbridge County, City of Buena Vista, City of Lexington, 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: Jul 15, 2012, 9:08 PM EDT (01:08 UTC)
Expired: Jul 15, 2012, 10:00 PM EDT
In force: 52 min
Issued by: NWS Blacksburg, VA

Counties City of Buena Vista, VA, City of Lexington, VA, Rockbridge County, VA

The radar

The Roanoke radar (KFCX), 101 km from the middle of the area, began a volume at 01:11 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

Washington/Dulle, VA (KIAD), launched 00:00Z, 1.1 hours before the alert went out and 230 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: 652 J/kg
Mixed-layer CIN: -91 J/kg
Mixed-layer LCL: 1264 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 90 m²/s²
0-3 km storm-relative helicity: 119 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.5

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 Jul 15, 7:40 PM EDT, 1 hour 28 minutes earlier.

Area forecast discussion, Jul 15, 7:40 PM EDT, 1 hour 28 minutes before

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Hazardous weather outlook, Jul 15, 3:20 AM EDT, 17 hours 48 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BLACKSBURG VA
320 AM EDT SUN JUL 15 2012

NCZ001>004-018>020-VAZ007-009>020-022>024-032>035-045>047-WVZ042>045-
160730-
ASHE-ALLEGHANY NC-SURRY-STOKES-WATAUGA-WILKES-YADKIN-TAZEWELL-SMYTH-
BLAND-GILES-WYTHE-PULASKI-MONTGOMERY-GRAYSON-CARROLL-FLOYD-CRAIG-
ALLEGHANY VA-BATH-ROANOKE-BOTETOURT-ROCKBRIDGE-PATRICK-FRANKLIN-
BEDFORD-AMHERST-CAMPBELL-APPOMATTOX-BUCKINGHAM-MERCER-SUMMERS-MONROE-
GREENBRIER-
320 AM EDT SUN JUL 15 2012

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

.DAY ONE...TODAY AND TONIGHT.

SLOW MOVING THUNDERSTORMS COULD PRODUCE VERY HEAVY RAINFALL AND
LOCALIZED FLOODING THIS AFTERNOON AND EVENING.

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

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

NCZ005-006-VAZ043-044-058-059-160730-
ROCKINGHAM-CASWELL-HENRY-PITTSYLVANIA-HALIFAX-CHARLOTTE-
320 AM EDT SUN JUL 15 2012

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

.DAY ONE...TODAY AND TONIGHT.

ISOLATED THUNDERSTORMS COULD PRODUCE VERY HEAVY RAINFALL AND
LOCALIZED FLOODING THIS AFTERNOON AND EVENING.

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

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

In the hours before

Special weather statement, Jul 15, 4:27 PM EDT, 4 hours 41 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
427 PM EDT SUN JUL 15 2012

VAZ035-047-152045-
AMHERST VA-BUCKINGHAM VA-
427 PM EDT SUN JUL 15 2012

...A STRONG THUNDERSTORM WILL AFFECT PORTIONS OF AMHERST AND
BUCKINGHAM COUNTIES...

AT 421 PM EDT...A STRONG THUNDERSTORM WAS LOCATED 3 MILES SOUTHEAST
OF CLIFFORD...MOVING EAST AT 20 MPH.

WIND GUSTS TO 30 MPH AND HAIL UP TO DIME SIZE ARE POSSIBLE WITH THIS
STORM. VERY HEAVY RAIN WILL FALL FROM THIS STORM...AND WILL CAUSE
WATER TO POND ON ROADS AND QUICKLY FILL ROADSIDE DITCHES AND SMALL
STREAMS.

THIS STORM WILL BE NEAR NEW GLASGOW BY 430 PM AND WINGINA AROUND 445
PM.

LAT...LON 3752 7879 3759 7884 3753 7888 3754 7906
      3771 7906 3771 7901 3770 7898 3755 7889
      3761 7882 3764 7882 3764 7872 3767 7872
      3770 7869 3770 7868 3751 7867

WP

Special weather statement, Jul 15, 4:32 PM EDT, 4 hours 36 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
432 PM EDT SUN JUL 15 2012

VAZ012-013-016-152100-
CARROLL VA-PULASKI VA-WYTHE VA-
432 PM EDT SUN JUL 15 2012

...A STRONG THUNDERSTORM WILL AFFECT PORTIONS OF CARROLL...PULASKI
AND WYTHE COUNTIES...

AT 430 PM EDT...A STRONG THUNDERSTORM WAS DEVELOPING NEAR GRAHAMS
FORGE...MOVING EAST AT 15 MPH.

WIND GUSTS TO 30 MPH AND HAIL UP TO DIME SIZE ARE POSSIBLE WITH THIS
STORM. VERY HEAVY RAIN WILL FALL FROM THIS STORM...AND WILL CAUSE
WATER TO POND ON ROADS AND QUICKLY FILL ROADSIDE DITCHES AND SMALL
STREAMS. IF ON OR NEAR CLAYTOR LAKE...GET OUT OF THE WATER AND MOVE
INDOORS OR INSIDE A VEHICLE. CLOUD TO GROUND LIGHTNING WILL BE CLOSE
TO THE LAKE BY 5 PM.

THIS STORM WILL BE NEAR PATTERSON AROUND 450 PM...DRAPER AROUND 455
PM AND ALLISONIA AROUND 500 PM.

LAT...LON 3708 8063 3694 8060 3693 8064 3689 8060
      3686 8059 3686 8096 3694 8101

WP

Special weather statement, Jul 15, 4:46 PM EDT, 4 hours 22 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
446 PM EDT SUN JUL 15 2012

VAZ024-035-152115-
AMHERST VA-ROCKBRIDGE VA-
446 PM EDT SUN JUL 15 2012

...STRONG THUNDERSTORMS WILL AFFECT PORTIONS OF AMHERST AND
ROCKBRIDGE COUNTIES...

AT 443 PM EDT...STRONG THUNDERSTORMS WERE ALONG A LINE FROM BELLS
VALLEY TO COLLIERSTOWN...MOVING EAST AT 15 MPH.

WIND GUSTS TO 30 MPH AND PEA-SIZED HAIL ARE POSSIBLE WITH THESE
STORMS. VERY HEAVY RAIN WILL FALL FROM THESE STORMS...AND WILL CAUSE
WATER TO POND ON ROADS INCLUDING INTERSTATE 81. EXPECT FREQUENT
CLOUD TO GROUND LIGHTNING FROM THESE STORMS. DO NOT STAY IN THE OPEN
OR SEEK SHELTER UNDER TREES WHEN LIGHTNING THREATENS...MOVE INDOORS
WHEN A THUNDERSTORM APPROACHES.

THESE STORMS WILL BE NEAR ROCKBRIDGE BATHS AROUND 450 PM...LEXINGTON
CITY AROUND 500 PM...FAIRFIELD AROUND 510 PM AND BUENA VISTA CITY
AND THE BLUE RIDGE PARKWAY AROUND 515 PM.

LAT...LON 3793 7920 3789 7915 3787 7914 3764 7931
      3768 7967 3773 7969 3806 7944

WP

Special weather statement, Jul 15, 4:54 PM EDT, 4 hours 14 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
454 PM EDT SUN JUL 15 2012

VAZ047-152145-
BUCKINGHAM VA-
454 PM EDT SUN JUL 15 2012

...STRONG THUNDERSTORMS WILL AFFECT BUCKINGHAM COUNTY...

AT 451 PM EDT...STRONG THUNDERSTORMS WERE ALONG A LINE FROM HARDWARE
TO WINGINA TO BENT CREEK...MOVING EAST AT 25 MPH.

THESE STORMS WILL PRODUCE PEA-SIZED HAIL. VERY HEAVY RAIN WILL FALL
FROM THESE STORMS...AND WILL CAUSE WATER TO POND ON ROADS AND QUICKLY
FILL ROADSIDE DITCHES AND SMALL STREAMS. FREQUENT CLOUD TO GROUND
LIGHTNING IS ASSOCIATED WITH THIS STORM. IF YOU ARE OUT ON THE JAMES
RIVER GET BACK TO LAND AND FIND A SAFE BUILDING OR SAFE VEHICLE.

THESE STORMS WILL BE NEAR TOGA AROUND 510 PM...BUCKINGHAM AROUND 520
PM...GOLD HILL AROUND 525 PM AND DILLWYN AROUND 530 PM.

THE PUBLIC IS ENCOURAGED TO RELAY REPORTS OF STRONG WINDS...HAIL OR
FLOODING TO THE NATIONAL WEATHER SERVICE IN BLACKSBURG BY CALLING
1...8 6 6...2 1 5...4 3 2 4...WHEN YOU CAN DO SO SAFELY.

LAT...LON 3751 7833 3749 7875 3755 7883 3758 7883
      3764 7876 3764 7872 3768 7871 3770 7867
      3768 7865 3771 7866 3777 7854 3776 7851
      3780 7848 3774 7842 3769 7824 3764 7824

WP

Local storm report, Jul 15, 6:34 PM EDT, 2 hours 34 minutes before

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Special weather statement, Jul 15, 9:08 PM EDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 15, 9:57 PM EDT	Special Weather Statement	RNK	Amherst	48 min
Jul 16, 3:34 PM EDT	Special Weather Statement	RNK	City of Salem	26 min
Jul 16, 3:54 PM EDT	Severe Thunderstorm Warning	RNK	Bedford, Botetourt, Franklin, Roanoke, City of Roanoke, City of Salem	53 min
Jul 16, 4:34 PM EDT	Special Weather Statement	RNK	Bedford, Franklin, City of Lynchburg	56 min
Jul 16, 4:41 PM EDT	Severe Thunderstorm Warning	RNK	Franklin	79 min
Jul 16, 5:37 PM EDT	Special Weather Statement	RNK	Franklin	38 min
Jul 16, 5:58 PM EDT	Severe Thunderstorm Warning	RNK	Henry, Pittsylvania, City of Danville	57 min
Jul 16, 6:16 PM EDT	Special Weather Statement	RNK	Buckingham	59 min
Jul 16, 6:21 PM EDT	Severe Thunderstorm Warning	RNK	Buckingham	54 min
Jul 16, 6:30 PM EDT	Special Weather Statement	RNK	Carroll, Pulaski	60 min
Jul 16, 6:31 PM EDT	Special Weather Statement	RNK	Carroll, Pulaski	59 min
Jul 16, 7:18 PM EDT	Special Weather Statement	RNK	Carroll, Patrick	57 min
Jul 16, 7:34 PM EDT	Severe Thunderstorm Warning	RNK	Patrick	56 min
Jul 16, 5:10 PM EDT	Special Weather Statement	RNK	Caswell	65 min
Jul 16, 6:54 PM EDT	Special Weather Statement	RNK	Caswell, Rockingham	51 min
Jul 16, 7:51 PM EDT	Special Weather Statement	RNK	Stokes, Surry	54 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.