Alert archive / Virginia / Special Weather Statements in 2014

Special Weather Statement, NWS Blacksburg, VA

July 28, 2014Alleghany County, City of Covington, Virginia

NWS Blacksburg, VA issued this special weather statement at Jul 28, 2014, 12:09 AM EDT for Alleghany County, City of Covington, Virginia. It was in force for 51 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 28, 2014, 12:09 AM EDT (04:09 UTC)
Expired: Jul 28, 2014, 1:00 AM EDT
In force: 51 min
Issued by: NWS Blacksburg, VA

Counties Alleghany County, VA, City of Covington, VA

The radar

The Roanoke radar (KFCX), 90 km from the middle of the area, began a volume at 04:10 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 00:00Z, 4.2 hours before the alert went out and 81 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: 369 J/kg
Mixed-layer CIN: -178 J/kg
Mixed-layer LCL: 1196 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 252 m²/s²
0-3 km storm-relative helicity: 344 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 8.7

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 27, 7:51 PM EDT, 4 hours 18 minutes earlier.

Area forecast discussion, Jul 27, 7:51 PM EDT, 4 hours 18 minutes before

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Hazardous weather outlook, Jul 27, 3:14 PM EDT, 8 hours 55 minutes before

HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE BLACKSBURG VA
314 PM EDT SUN JUL 27 2014

NCZ001>003-018>020-VAZ007-009>013-015-016-018>020-WVZ042>045-281915-
ASHE-ALLEGHANY NC-SURRY-WATAUGA-WILKES-YADKIN-TAZEWELL-SMYTH-BLAND-
GILES-WYTHE-PULASKI-GRAYSON-CARROLL-CRAIG-ALLEGHANY VA-BATH-MERCER-
SUMMERS-MONROE-GREENBRIER-
314 PM EDT SUN JUL 27 2014

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

.DAY ONE...THIS AFTERNOON AND TONIGHT.

A FEW STRONG TO SEVERE THUNDERSTORMS CONTAINING DAMAGING WINDS AND
LARGE HAIL WILL BE POSSIBLE INTO THIS EVENING. IN ADDITION...VERY
HEAVY RAINFALL COULD RESULT IN LOCALIZED FLOODING OF SMALLER
CREEKS AND STREAMS.

.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.

NCZ004>006-VAZ014-017-022>024-032>035-043>047-058-059-281915-
STOKES-ROCKINGHAM-CASWELL-MONTGOMERY-FLOYD-ROANOKE-BOTETOURT-
ROCKBRIDGE-PATRICK-FRANKLIN-BEDFORD-AMHERST-HENRY-PITTSYLVANIA-
CAMPBELL-APPOMATTOX-BUCKINGHAM-HALIFAX-CHARLOTTE-
314 PM EDT SUN JUL 27 2014

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

.DAY ONE...THIS AFTERNOON AND TONIGHT.

ISOLATED STRONG TO SEVERE THUNDERSTORMS CONTAINING LOCALIZED
DAMAGING WIND GUSTS AND HAIL WILL BE POSSIBLE INTO THIS EVENING.

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

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

In the hours before

Special weather statement, Jul 27, 6:54 PM EDT, 5 hours 15 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
654 PM EDT SUN JUL 27 2014

NCZ018-272345-
WATAUGA NC-
654 PM EDT SUN JUL 27 2014

THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A

* SPECIAL WEATHER STATEMENT FOR...
  SOUTHWESTERN WATAUGA COUNTY IN NORTHWEST NORTH CAROLINA...

* UNTIL 745 PM EDT

* AT 654 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
  A STRONG THUNDERSTORM NEAR BANNER ELK...MOVING TO THE SOUTHEAST AT
  40 MPH.

* PENNY SIZE HAIL AND WIND GUSTS UP TO 50 MPH ARE EXPECTED WITH THIS
  STORM.

* LOCATIONS IMPACTED INCLUDE...
  BLOWING ROCK...
  SEVEN DEVILS...
  AND FOSCOE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PROLONGED HEAVY RAINFALL MAY CAUSE WATER TO FLOW OVER THE ROADWAY. DO
NOT DRIVE YOUR VEHICLE WHERE THE ROAD HAS BECOME FLOODED.

DO NOT STAY IN THE OPEN OR SHELTER UNDER TREES WHEN LIGHTNING
THREATENS. SEEK SHELTER INSIDE A STURDY BUILDING OR IN A VEHICLE.

&&

LAT...LON 3623 8185 3612 8161 3611 8181 3612 8182
      3616 8182 3619 8185 3619 8189
TIME...MOT...LOC 2251Z 307DEG 33KT 3613 8188

RS

Special weather statement, Jul 27, 7:09 PM EDT, 5 hours before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
709 PM EDT SUN JUL 27 2014

NCZ001-018-272345-
WATAUGA NC-ASHE NC-
709 PM EDT SUN JUL 27 2014

THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A

* SPECIAL WEATHER STATEMENT FOR...
  NORTHWESTERN WATAUGA COUNTY IN NORTHWEST NORTH CAROLINA...
  NORTHWESTERN ASHE COUNTY IN NORTHWEST NORTH CAROLINA...

* UNTIL 745 PM EDT

* AT 705 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS
  TRACKING A STRONG THUNDERSTORM...MOVING TO THE SOUTHEAST AT 30 MPH
  TOWARDS MOUNTAIN CITY. THIS STORM IS EXPECTED TO MOVE ACROSS ASHE
  AND WATAUGA COUNTIES BETWEEN 730 PM AND 815 PM.

* PENNY SIZE HAIL AND WIND GUSTS UP TO 40 MPH ARE EXPECTED WITH THIS
  STORM.

* LOCATIONS IMPACTED INCLUDE...
  JEFFERSON...
  SUGAR GROVE...
  ASHLAND...
  LANSING...
  AND MEAT CAMP.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM WILL LIKELY INTENSIFY...SO MONITOR LOCAL RADIO AND
TELEVISION FOR ADDITIONAL INFORMATION...AND POSSIBLE WARNINGS...FROM
THE NATIONAL WEATHER SERVICE.

&&

LAT...LON 3634 8185 3636 8179 3634 8176 3634 8171
      3635 8172 3641 8174 3643 8172 3646 8171
      3647 8170 3653 8171 3657 8169 3645 8134
      3620 8180 3631 8189
TIME...MOT...LOC 2304Z 302DEG 36KT 3653 8191

RS

Local storm report, Jul 27, 7:56 PM EDT, 4 hours 13 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 27, 10:51 PM EDT	Special Weather Statement	RNK	Tazewell	39 min
Jul 28, 12:36 AM EDT	Special Weather Statement	RNK	Bath	54 min
Jul 28, 1:13 AM EDT	Special Weather Statement	RNK	Tazewell	62 min
Jul 27, 11:20 PM EDT	Special Weather Statement	RNK	Summers	40 min
Jul 28, 12:10 AM EDT	Special Weather Statement	RNK	Greenbrier	50 min

Nearby

Special Weather Statements in Virginia, 2014 Every special weather statement in 2014

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.