Alert archive / Virginia / Special Weather Statements in 2015

Special Weather Statement, NWS Blacksburg, VA

April 30, 2015City of Lynchburg, Virginia

NWS Blacksburg, VA issued this special weather statement at Apr 30, 2015, 2:13 PM EDT for City of Lynchburg, Virginia. It was in force for 32 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
Apr 30, 2015, 2:13 PM EDT (18:13 UTC)
Expired
Apr 30, 2015, 2:45 PM EDT
In force
32 min
Issued by
NWS Blacksburg, VA

County City of Lynchburg, VA

The radar

The Roanoke radar (KFCX), 92 km from the middle of the area, began a volume at 18:16 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 12:00Z, 6.2 hours before the alert went out and 152 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-pSkew-T log-p diagram, Greensboro/Hi Pt, NC at 12:00Z on 2015-04-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Greensboro/Hi Pt, NC at 12:00Z on 2015-04-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 33 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
950 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
33 m²/s²
0-3 km storm-relative helicity
38 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 Apr 30, 1:51 PM EDT, 22 minutes earlier.

Area forecast discussion, Apr 30, 1:51 PM EDT, 22 minutes before
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Hazardous weather outlook, Apr 30, 3:35 AM EDT, 10 hours 38 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BLACKSBURG VA
335 AM EDT THU APR 30 2015

NCZ001>006-018>020-VAZ007-009>020-022>024-032>035-043>047-058-059-
WVZ042>044-507-508-010745-
ASHE-ALLEGHANY NC-SURRY-STOKES-ROCKINGHAM-CASWELL-WATAUGA-WILKES-
YADKIN-TAZEWELL-SMYTH-BLAND-GILES-WYTHE-PULASKI-MONTGOMERY-GRAYSON-
CARROLL-FLOYD-CRAIG-ALLEGHANY VA-BATH-ROANOKE-BOTETOURT-ROCKBRIDGE-
PATRICK-FRANKLIN-BEDFORD-AMHERST-HENRY-PITTSYLVANIA-CAMPBELL-
APPOMATTOX-BUCKINGHAM-HALIFAX-CHARLOTTE-MERCER-SUMMERS-MONROE-
EASTERN GREENBRIER-WESTERN GREENBRIER-
335 AM EDT THU APR 30 2015

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.

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

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, Apr 30, 12:49 PM EDT, 1 hour 24 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
1249 PM EDT THU APR 30 2015

VAZ024-035-301715-
ROCKBRIDGE VA-AMHERST VA-
1249 PM EDT THU APR 30 2015

THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A

* SPECIAL WEATHER STATEMENT FOR...
  NORTHEASTERN ROCKBRIDGE COUNTY IN WEST CENTRAL VIRGINIA...
  NORTHWESTERN AMHERST COUNTY IN CENTRAL VIRGINIA...

* UNTIL 115 PM EDT

* AT 1249 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS
  TRACKING STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM NEAR
  VESUVIUS TO NEAR ALTO TO NEAR FORKS OF BUFFALO...MOVING TO THE
  NORTHEAST AT 10 MPH.

* PEA SIZE HAIL AND WIND GUSTS UP TO 30 MPH ARE EXPECTED WITH THESE
  STORMS. VERY HEAVY RAIN IS FALLING...AND WILL CAUSE WATER TO POND
  ON ROADWAYS AND QUICKLY FILL ROADSIDE DITCHES AND SMALL STREAMS.

* LOCATIONS IMPACTED INCLUDE...
  FORKS OF BUFFALO...
  VESUVIUS...
  ALTO...
  PLEASANT VIEW...
  AND BROWNSBURG.

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.

&&

LAT...LON 3792 7919 3789 7915 3786 7915 3781 7917
      3781 7914 3778 7911 3779 7909 3777 7907
      3773 7907 3758 7922 3767 7932 3782 7919
      3793 7933 3798 7929
TIME...MOT...LOC 1647Z 218DEG 9KT 3792 7922 3778 7915 3765 7922

DS
Special weather statement, Apr 30, 1:11 PM EDT, 1 hour 2 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
111 PM EDT THU APR 30 2015

VAZ022-301745-
ROANOKE VA-
111 PM EDT THU APR 30 2015

THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A

* SPECIAL WEATHER STATEMENT FOR...
  SOUTH CENTRAL ROANOKE COUNTY IN WEST CENTRAL VIRGINIA...

* UNTIL 145 PM EDT

* AT 111 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
  A STRONG THUNDERSTORM NEAR BENT MOUNTAIN...MOVING TO THE NORTHEAST
  AT 5 MPH.

* DIME SIZE HAIL AND WIND GUSTS UP TO 30 MPH ARE EXPECTED WITH THIS
  STORM. VERY HEAVY RAIN IS FALLING...AND WILL CAUSE WATER TO POND ON
  ROADWAYS AND QUICKLY FILL ROADSIDE DITCHES AND SMALL STREAMS.

* LOCATIONS IMPACTED INCLUDE...
  BENT MOUNTAIN.

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.

&&

LAT...LON 3716 8007 3716 8009 3715 8009 3715 8011
      3714 8011 3713 8012 3712 8012 3711 8016
      3714 8017 3719 8010
TIME...MOT...LOC 1708Z 240DEG 4KT 3715 8013

DS
Special weather statement, Apr 30, 1:21 PM EDT, 52 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
121 PM EDT THU APR 30 2015

VAZ035-301745-
AMHERST VA-
121 PM EDT THU APR 30 2015

THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A

* SPECIAL WEATHER STATEMENT FOR...
  NORTHEASTERN AMHERST COUNTY IN CENTRAL VIRGINIA...

* UNTIL 145 PM EDT

* AT 121 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
  STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM NEAR PLEASANT VIEW
  TO NEAR ELON...MOVING TO THE NORTHEAST AT 5 MPH.

* PEA SIZE HAIL AND WIND GUSTS UP TO 30 MPH ARE EXPECTED WITH THESE
  STORMS. VERY HEAVY RAIN IS FALLING...AND WILL CAUSE WATER TO POND
  ON ROADWAYS AND QUICKLY FILL ROADSIDE DITCHES AND SMALL STREAMS.

* LOCATIONS IMPACTED INCLUDE...
  FORKS OF BUFFALO...
  CLIFFORD...
  PLEASANT VIEW...
  AND LOWESVILLE.

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.

&&

LAT...LON 3778 7911 3778 7907 3772 7907 3770 7903
      3770 7899 3768 7898 3768 7897 3766 7896
      3753 7918 3767 7931 3781 7915 3781 7914
TIME...MOT...LOC 1719Z 217DEG 4KT 3765 7926 3758 7918

DS
Special weather statement, Apr 30, 1:58 PM EDT, 15 minutes before
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Special weather statement, Apr 30, 2:13 PM EDT, 0 minutes before
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Special weather statement, Apr 30, 2:13 PM EDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Apr 30, 12:19 PM EDTSpecial Weather StatementRNKAmherst26 min
Apr 30, 12:49 PM EDTSpecial Weather StatementRNKCity of Buena Vista26 min
Apr 30, 1:11 PM EDTSpecial Weather StatementRNKCity of Salem34 min
Apr 30, 1:21 PM EDTSpecial Weather StatementRNKAmherst24 min
Apr 30, 1:58 PM EDTSpecial Weather StatementRNKCity of Martinsville32 min
Apr 30, 2:31 PM EDTSpecial Weather StatementRNKAmherst29 min
Apr 30, 2:33 PM EDTSpecial Weather StatementRNKCity of Danville42 min
Apr 30, 2:36 PM EDTSpecial Weather StatementRNKPittsylvania24 min
Apr 30, 2:46 PM EDTSpecial Weather StatementRNKCity of Lynchburg29 min
Apr 30, 2:47 PM EDTSpecial Weather StatementRNKCity of Lynchburg28 min
Apr 30, 3:04 PM EDTSpecial Weather StatementRNKCampbell26 min
Apr 30, 3:17 PM EDTSpecial Weather StatementRNKCity of Covington28 min
Apr 30, 3:19 PM EDTSpecial Weather StatementRNKPittsylvania, City of Danville26 min
Apr 30, 3:32 PM EDTSpecial Weather StatementRNKCampbell28 min
Apr 30, 3:44 PM EDTSpecial Weather StatementRNKCampbell61 min
Apr 30, 3:47 PM EDTSpecial Weather StatementRNKHalifax58 min
Apr 30, 4:26 PM EDTSpecial Weather StatementRNKBedford64 min
Apr 30, 4:40 PM EDTSpecial Weather StatementRNKFranklin65 min
Apr 30, 5:30 PM EDTSpecial Weather StatementRNKPittsylvania45 min
Apr 30, 5:46 PM EDTSpecial Weather StatementRNKRockbridge59 min
Apr 30, 6:37 PM EDTSpecial Weather StatementRNKBedford68 min
Apr 30, 6:53 PM EDTSpecial Weather StatementRNKBedford67 min

Nearby

Special Weather Statements in Virginia, 2015Every 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.