Alert archive / Virginia / Special Weather Statements in 2015

Special Weather Statement, NWS Blacksburg, VA

June 20, 2015Floyd County, Virginia

NWS Blacksburg, VA issued this special weather statement at Jun 20, 2015, 2:44 PM EDT for Floyd County, Virginia. It was in force for 61 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 20, 2015, 2:44 PM EDT (18:44 UTC)
Expired: Jun 20, 2015, 3:45 PM EDT
In force: 61 min
Issued by: NWS Blacksburg, VA

County Floyd County, VA

The radar

The Roanoke radar (KFCX), 17 km from the middle of the area, began a volume at 18:45 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

Roanoke, VA (KRNK), launched 12:00Z, 6.7 hours before the alert went out and 72 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: 329 J/kg
Mixed-layer CIN: -70 J/kg
Mixed-layer LCL: 836 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: 88 m²/s²
0-3 km storm-relative helicity: 110 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.8

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 20, 2:02 PM EDT, 42 minutes earlier.

Area forecast discussion, Jun 20, 2:02 PM EDT, 42 minutes before

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        The site you requested is temporarily down for maintenance or an unexpected outage.
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Hazardous weather outlook, Jun 20, 12:39 PM EDT, 2 hours 5 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BLACKSBURG VA
1239 PM EDT SAT JUN 20 2015

VAZ007-009>014-018>020-022>024-WVZ042>044-507-508-211645-
TAZEWELL-SMYTH-BLAND-GILES-WYTHE-PULASKI-MONTGOMERY-CRAIG-
ALLEGHANY VA-BATH-ROANOKE-BOTETOURT-ROCKBRIDGE-MERCER-SUMMERS-MONROE-
EASTERN GREENBRIER-WESTERN GREENBRIER-
1239 PM EDT SAT JUN 20 2015

...FLASH FLOOD WATCH IN EFFECT THROUGH SUNDAY MORNING...

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

.DAY ONE...THIS AFTERNOON 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.

IN ADDITION TO THE HEAVY RAINFALL POTENTIAL...A FEW OF THE
SCATTERED THUNDERSTORMS THIS AFTERNOON AND EVENING COULD BECOME
SEVERE...WITH DAMAGING WINDS THE PRIMARY THREAT.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.

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

   FLASH FLOOD WATCH.

BY LATE SUNDAY...SCATTERED STRONG TO SEVERE THUNDERSTORMS WILL BE
POSSIBLE DURING THE AFTERNOON AND EVENING...WITH DAMAGING WINDS
BEING THE MAIN THREAT. SCATTERED THUNDERSTORMS ARE EXPECTED MONDAY
THROUGH FRIDAY...BUT WILL BE MOST NUMEROUS WEDNESDAY THROUGH
FRIDAY MAINLY DURING THE AFTERNOONS AND EVENINGS. THERE IS A
CHANCE THAT SOME OF THESE STORMS COULD BECOME STRONG TO
SEVERE...WITH DAMAGING WINDS AGAIN BEING THE MAIN HAZARD.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED.

NCZ001>006-018>020-VAZ015>017-211645-
ASHE-ALLEGHANY NC-SURRY-STOKES-ROCKINGHAM-CASWELL-WATAUGA-WILKES-
YADKIN-GRAYSON-CARROLL-FLOYD-
1239 PM EDT SAT JUN 20 2015

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

.DAY ONE...THIS AFTERNOON AND TONIGHT.

SCATTERED THUNDERSTORMS ARE EXPECTED THIS AFTERNOON AND EVENING AS
THE REMNANTS OF TROPICAL STORM BILL TRACK THROUGH THE REGION. AS A
RESULT...A FEW OF THESE THUNDERSTORMS COULD BECOME SEVERE
PRODUCING DAMAGING WINDS. LOCALLY VERY HEAVY TROPICAL RAINFALL
WILL ALSO BE POSSIBLE.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.

SCATTERED THUNDERSTORMS ARE EXPECTED THROUGH THE PERIOD...MAINLY
DURING THE AFTERNOONS AND EVENINGS. A FEW OF THESE COULD BECOME
STRONG TO SEVERE...ESPECIALLY SUNDAY AFTERNOON INTO THE
EVENING...AND AGAIN WEDNESDAY THROUGH FRIDAY DURING THE AFTERNOONS
AND EVENINGS. DAMAGING WINDS WILL BE THE MAIN HAZARD WITH ANY
STRONG TO SEVERE THUNDERSTORMS THROUGH THE PERIOD.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED.

VAZ032>035-043>047-058-059-211645-
PATRICK-FRANKLIN-BEDFORD-AMHERST-HENRY-PITTSYLVANIA-CAMPBELL-
APPOMATTOX-BUCKINGHAM-HALIFAX-CHARLOTTE-
1239 PM EDT SAT JUN 20 2015

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

.DAY ONE...THIS AFTERNOON AND TONIGHT.

SCATTERED THUNDERSTORMS ARE EXPECTED THIS AFTERNOON AND EVENING AS
THE REMNANTS OF TROPICAL STORM BILL TRACK THROUGH THE REGION. AS A
RESULT...A FEW OF THESE THUNDERSTORMS COULD BECOME SEVERE
PRODUCING DAMAGING WINDS. AN ISOLATED TORNADO WILL BE POSSIBLE.
LOCALLY VERY HEAVY TROPICAL RAINFALL WILL ALSO BE POSSIBLE.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.

SCATTERED THUNDERSTORMS ARE EXPECTED THROUGH THE PERIOD...MAINLY
DURING THE AFTERNOONS AND EVENINGS. A FEW OF THESE COULD BECOME
STRONG TO SEVERE...ESPECIALLY SUNDAY AFTERNOON INTO THE
EVENING...AND AGAIN WEDNESDAY THROUGH FRIDAY DURING THE AFTERNOONS
AND EVENINGS. DAMAGING WINDS WILL BE THE MAIN HAZARD WITH ANY
STRONG TO SEVERE THUNDERSTORMS THROUGH THE PERIOD.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED.

SK

In the hours before

Special weather statement, Jun 20, 2:04 PM EDT, 40 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
204 PM EDT SAT JUN 20 2015

VAZ010>014-016>019-022-WVZ044-201900-
WYTHE-ALLEGHANY-CRAIG-MONTGOMERY-FLOYD-ROANOKE-BLAND-PULASKI-GILES-
CARROLL-MONROE-
204 PM EDT SAT JUN 20 2015

...A DEVELOPING CLUSTER OF STRONG THUNDERSTORMS WILL AFFECT CITY OF
RADFORD...WESTERN CRAIG...PULASKI...WEST CENTRAL ROANOKE...
GILES...WESTERN FLOYD...MONTGOMERY...EASTERN WYTHE...NORTHERN
CARROLL...EAST CENTRAL BLAND...SOUTHWESTERN ALLEGHANY AND MONROE
COUNTIES...

AT 202 PM EDT...A LINE OF THUNDERSTORMS WAS EXTENDING FROM NEAR
WAITEVILLE TO NEAR IVANHOE...AND MOVING NORTHEAST AT 40 MPH.

AS THESE STORMS CONTINUE TO DEVELOP...WINDS IN EXCESS OF 40 MPH AND
HALF INCH HAIL WILL BE POSSIBLE WITH THESE STORMS. SEVERE
THUNDERSTORM WARNINGS MAY ALSO BE POSSIBLE WITHIN THE NEXT HOUR OR
SO.

LOCATIONS IMPACTED INCLUDE...
BLACKSBURG...
CHRISTIANSBURG...
RADFORD...
PULASKI...
AND WYTHEVILLE.

THIS INCLUDES VIRGINIA TECH.

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THESE STORMS...AND MAY
CAUSE LOCALIZED FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

LAT...LON 3773 8019 3712 8022 3671 8051 3678 8102
      3680 8104 3679 8107 3680 8114 3767 8059
      3770 8038 3769 8038 3771 8034 3769 8035
      3769 8031 3772 8026
TIME...MOT...LOC 1802Z 228DEG 44KT 3750 8048 3682 8101

SK

Special weather statement, Jun 20, 2:44 PM EDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
244 PM EDT SAT JUN 20 2015

VAZ016-017-032-033-201945-
FLOYD-PATRICK-FRANKLIN-CARROLL-
244 PM EDT SAT JUN 20 2015

...A STRONG THUNDERSTORM WILL AFFECT NORTHERN PATRICK...SOUTHWESTERN
FRANKLIN...FLOYD AND EAST CENTRAL CARROLL COUNTIES...

AT 243 PM EDT...A STRONG THUNDERSTORM WAS NEAR MABRY MILL...MOVING
NORTHEAST AT 45 MPH.

WINDS IN EXCESS OF 40 MPH AND HALF INCH HAIL ARE POSSIBLE WITH THIS
STORM.

LOCATIONS IMPACTED INCLUDE...
FLOYD...
WOOLWINE...
FERRUM...
COPPER HILL...
AND WILLIS.

FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM.
LIGHTNING CAN STRIKE 15 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE
SHELTER INSIDE A BUILDING OR VEHICLE.

LAT...LON 3676 8061 3709 8024 3711 8018 3711 8015
      3689 7986 3683 7999 3683 8000 3682 8000
      3660 8047
TIME...MOT...LOC 1843Z 220DEG 43KT 3678 8046

SK

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 20, 2:04 PM EDT	Special Weather Statement	RNK	Craig, Giles, Montgomery, Pulaski, City of Radford	56 min
Jun 20, 2:56 PM EDT	Special Weather Statement	RNK	Smyth, Tazewell	64 min
Jun 20, 3:19 PM EDT	Special Weather Statement	RNK	City of Covington	41 min
Jun 20, 3:32 PM EDT	Severe Thunderstorm Warning	RNK	Bedford, Franklin	43 min
Jun 20, 3:50 PM EDT	Severe Thunderstorm Warning	RNK	Alleghany, Bath	38 min
Jun 20, 4:01 PM EDT	Special Weather Statement	RNK	Bland, Grayson, Smyth, Tazewell, Wythe	59 min
Jun 20, 4:10 PM EDT	Special Weather Statement	RNK	Pittsylvania	65 min
Jun 20, 4:13 PM EDT	Special Weather Statement	RNK	Buckingham	62 min
Jun 20, 4:16 PM EDT	Severe Thunderstorm Warning	RNK	Campbell, Charlotte, Halifax, Pittsylvania	40 min
Jun 20, 4:37 PM EDT	Special Weather Statement	RNK	Franklin, Henry, Patrick, City of Martinsville	53 min
Jun 20, 4:55 PM EDT	Special Weather Statement	RNK	Appomattox	65 min
Jun 20, 5:22 PM EDT	Special Weather Statement	RNK	Buckingham	53 min
Jun 20, 5:29 PM EDT	Special Weather Statement	RNK	Pittsylvania, City of Danville	46 min
Jun 20, 5:37 PM EDT	Severe Thunderstorm Warning	RNK	Pittsylvania	38 min
Jun 20, 5:59 PM EDT	Special Weather Statement	RNK	Amherst, City of Lynchburg	61 min
Jun 20, 6:13 PM EDT	Special Weather Statement	RNK	Campbell, Halifax, Pittsylvania	62 min
Jun 20, 6:36 PM EDT	Special Weather Statement	RNK	Charlotte	39 min
Jun 20, 6:46 PM EDT	Special Weather Statement	RNK	Appomattox, Buckingham	44 min
Jun 20, 7:05 PM EDT	Severe Thunderstorm Warning	RNK	Appomattox, Buckingham	55 min
Jun 19, 8:09 PM EDT	Special Weather Statement	RNK	Alleghany, Ashe	66 min
Jun 19, 8:40 PM EDT	Special Weather Statement	RNK	Watauga, Wilkes	65 min
Jun 20, 7:09 PM EDT	Special Weather Statement	RNK	Caswell	66 min
Jun 20, 3:08 PM EDT	Special Weather Statement	RNK	Greenbrier	22 min

Nearby

Special Weather Statements in Virginia, 2015 Every special weather statement in 2015

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.