Alert archive / Virginia / Wind Advisories in 2011
Wind Advisory 24, NWS Blacksburg, VA
NWS Blacksburg, VA issued this wind advisory at Oct 14, 2011, 12:56 PM EDT for 4 counties in Virginia; Alleghany County, Ashe County, Watauga County, North Carolina. It was in force for 7 hr.
The area
The counties it named.
The facts
- Issued
- Oct 14, 2011, 12:56 PM EDT (16:56 UTC)
- Expired
- Oct 14, 2011, 7:29 PM EDT
- In force
- 7 hr
- Issued by
- NWS Blacksburg, VA
Counties Alleghany County, NC, Ashe County, NC, Watauga County, NC, Carroll County, VA, City of Galax, VA, Floyd County, VA, Grayson County, VA
The radar
The Roanoke radar (KFCX), 86 km from the middle of the area, began a volume at 17:00 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, 4.9 hours before the alert went out and 120 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.
- Mixed-layer CAPE
- 161 J/kg
- Mixed-layer CIN
- -19 J/kg
- Mixed-layer LCL
- 724 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 67 m²/s²
- 0-3 km storm-relative helicity
- 98 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
As transmitted, in the capitals the NWS used until 2016.
485 WWUS71 KRNK 141656 NPWRNK URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE BLACKSBURG VA 1256 PM EDT FRI OCT 14 2011 ...VERY GUSTY WINDS EXPECTED THROUGH THIS EVENING... .VERY GUSTY WINDS ARE EXPECTED THROUGH THIS EVENING ON THE BACKSIDE OF A DEPARTING TROUGH OF LOW PRESSURE. WINDS WILL GRADUALLY DECREASE AS MIDNIGHT APPROACHES. NCZ001-002-018-VAZ015>017-150100- /O.NEW.KRNK.WI.Y.0024.111014T1656Z-111015T0400Z/ ASHE-ALLEGHANY NC-WATAUGA-GRAYSON-CARROLL-FLOYD- INCLUDING THE CITIES OF...WEST JEFFERSON...SPARTA...BOONE... INDEPENDENCE...WHITETOP...TROUTDALE...VOLNEY...GALAX...FLOYD 1256 PM EDT FRI OCT 14 2011 ...WIND ADVISORY IN EFFECT UNTIL MIDNIGHT EDT TONIGHT... THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A WIND ADVISORY...WHICH IS IN EFFECT UNTIL MIDNIGHT EDT TONIGHT. * LOCATIONS...NORTHERN MOUNTAINS OF NORTH CAROLINA...ALONG THE CREST OF THE BLUE RIDGE IN VIRGINIA NEAR AND SOUTHWEST OF FLOYD * HAZARDS...GUSTY WINDS MAY DOWN SMALL TREES WHERE THE GROUND IS SATURATED FROM RECENT RAINS AND BREAK OFF BRANCHES * WINDS...WEST 20 TO 30 MPH WITH GUSTS UP TO 50 MPH. * TIMING...NOW THROUGH MAINLY 800 PM...BUT ISOLATED STRONG GUSTS POSSIBLE THROUGH MIDNIGHT. * IMPACTS...POSSIBLE DOWNED BRANCHES...SMALL TREES AND POWER LINES PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT WINDS OF 35 MPH ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION. && $$ DS
2 follow-up statements
487 WWUS71 KRNK 141947 NPWRNK URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE BLACKSBURG VA 347 PM EDT FRI OCT 14 2011 ...VERY GUSTY WINDS EXPECTED THROUGH THIS EVENING... .VERY GUSTY WINDS WILL CONTINUE THROUGH THIS EVENING ON THE BACKSIDE OF A DEPARTING TROUGH OF LOW PRESSURE. WINDS WILL GRADUALLY DECREASE THROUGH THE EVENING...BUT WITH OCCASIONAL STRONG GUSTS. NCZ001-002-018-VAZ015>017-150400- /O.CON.KRNK.WI.Y.0024.000000T0000Z-111015T0400Z/ ASHE-ALLEGHANY NC-WATAUGA-GRAYSON-CARROLL-FLOYD- INCLUDING THE CITIES OF...WEST JEFFERSON...SPARTA...BOONE... INDEPENDENCE...WHITETOP...TROUTDALE...VOLNEY...GALAX...FLOYD 347 PM EDT FRI OCT 14 2011 ...WIND ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT EDT TONIGHT... * LOCATIONS...NORTHERN MOUNTAINS OF NORTH CAROLINA...AND ALONG THE CREST OF THE BLUE RIDGE IN VIRGINIA TO FLOYD COUNTY. * HAZARDS...GUSTY WINDS MAY DOWN SMALL TREES WHERE THE GROUND IS SATURATED FROM RECENT RAINS AND BREAK OFF BRANCHES * WINDS...WEST 20 TO 30 MPH WITH GUSTS UP TO 50 MPH...DECREASING TO 10 TO 25 MPH WITH GUSTS TO AROUND 45 MPH DURING THE EVENING. * TIMING...STRONGEST SUSTAINED WINDS THROUGH MAINLY 700 PM...BUT ISOLATED STRONG GUSTS POSSIBLE THROUGH MIDNIGHT. * IMPACTS...POSSIBLE DOWNED BRANCHES...SMALL TREES AND POWER LINES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT WINDS OF 35 MPH ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION. && $$
020 WWUS71 KRNK 142329 AAA NPWRNK URGENT - WEATHER MESSAGE...UPDATED NATIONAL WEATHER SERVICE BLACKSBURG VA 729 PM EDT FRI OCT 14 2011 ...WEST WINDS DIMINISHING... NCZ001-002-018-VAZ015>017-150030- /O.CAN.KRNK.WI.Y.0024.000000T0000Z-111015T0400Z/ ASHE-ALLEGHANY NC-WATAUGA-GRAYSON-CARROLL-FLOYD- INCLUDING THE CITIES OF...WEST JEFFERSON...SPARTA...BOONE... INDEPENDENCE...WHITETOP...TROUTDALE...VOLNEY...GALAX...FLOYD 729 PM EDT FRI OCT 14 2011 ...WIND ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS CANCELLED THE WIND ADVISORY. STRONG WESTERLY WINDS HAVE QUICKLY DIMINISHED TO WELL BELOW ADVISORY LEVELS WITH THE LOSS OF HEATING. STILL COULD SEE SOME GUSTS TO 35 MPH OVER THE NORTHWEST NORTH CAROLINA RIDGES BUT GIVEN LESS MIXING EXPECT WINDS TO CONTINUE TO LIGHTEN UP OVERNIGHT. $$
Nearby
Wind Advisories in Virginia, 2011Wind Advisories in North Carolina, 2011Every wind advisory in 2011
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.