Alert archive / Virginia / Wind Advisories in 2011
Wind Advisory 3, NWS Blacksburg, VA
NWS Blacksburg, VA issued this wind advisory at Jan 20, 2011, 4:00 PM EST for 17 counties in Virginia; Alleghany County, Ashe County, Watauga County, North Carolina. It took effect at Jan 21, 2011, 12:00 AM EST. It was in force for 4 hr.
The area
The counties it named.
The facts
- Issued
- Jan 20, 2011, 4:00 PM EST (21:00 UTC)
- In effect from
- Jan 21, 2011, 12:00 AM EST
- Expired
- Jan 21, 2011, 4:04 AM EST
- In force
- 4 hr
- Issued by
- NWS Blacksburg, VA
Counties Alleghany County, NC, Ashe County, NC, Watauga County, NC, Alleghany County, VA, Bath County, VA, Carroll County, VA, City of Covington, VA, City of Galax, VA, City of Radford, VA, City of Roanoke, VA, City of Salem, VA, Craig County, VA, Floyd County, VA, Franklin County, VA, Giles County, VA, Grayson County, VA, Montgomery County, VA, Patrick County, VA, Pulaski County, VA, Roanoke County, VA
The radar
The Roanoke radar (KFCX), 21 km from the middle of the area, began a volume at 21:04 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, 9.0 hours before the alert went out and 90 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 932 m above ground
- 0-6 km bulk shear
- 84 kt
- 0-1 km storm-relative helicity
- -174 m²/s²
- 0-3 km storm-relative helicity
- 16 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
938 WWUS71 KRNK 202100 NPWRNK URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE BLACKSBURG VA 400 PM EST THU JAN 20 2011 ...STRONG NORTHWEST WINDS LATER TONIGHT THROUGH FRIDAY... .STRONG COLD AIR ADVECTION COMBINED WITH AN INCREASING PRESSURE GRADIENT BETWEEN A DEVELOPING LOW OFF THE ATLANTIC COAST AND A BUILDING HIGH ACROSS THE MIDWEST...WILL BRING GUSTY NORTHWEST WINDS TO OUR AREA. THE STRONGEST WINDS WILL OCCUR FRIDAY MORNING ALONG THE BLUE RIDGE...WITH GUSTS 50 TO 55 MPH POSSIBLE. NCZ001-002-018-VAZ014>018-022-032-033-210500- /O.NEW.KRNK.WI.Y.0003.110121T0500Z-110121T2100Z/ ASHE-ALLEGHANY NC-WATAUGA-MONTGOMERY-GRAYSON-CARROLL-FLOYD-CRAIG- ROANOKE-PATRICK-FRANKLIN- INCLUDING THE CITIES OF...WEST JEFFERSON...SPARTA...BOONE... BLACKSBURG...INDEPENDENCE...WHITETOP...TROUTDALE...VOLNEY... GALAX...FLOYD...NEW CASTLE...ROANOKE...SALEM...STUART... ROCKY MOUNT 400 PM EST THU JAN 20 2011 ...WIND ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 4 PM EST FRIDAY... THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A WIND ADVISORY...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO 4 PM EST FRIDAY. * WINDS...NORTHWEST WINDS 15 TO 30 MPH WITH GUSTS TO 50 MPH. HIGHEST GUSTS WILL BE ALONG THE HIGHER ELEVATIONS. * TIMING...AFTER MIDNIGHT TONIGHT THROUGH FRIDAY AFTERNOON. STRONGEST WINDS EARLY FRIDAY MORNING. * IMPACTS...WINDS MAY CAUSE A FEW DOWNED TREES AND ISOLATED POWER OUTAGES. 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. && $$ MC
2 follow-up statements
083 WWUS71 KRNK 210146 AAA NPWRNK URGENT - WEATHER MESSAGE...UPDATED NATIONAL WEATHER SERVICE BLACKSBURG VA 846 PM EST THU JAN 20 2011 ...STRONG NORTHWEST WINDS LATER TONIGHT THROUGH FRIDAY... .THE COMBINATION OF MUCH COLDER AIR MOVING INTO THE REGION AND A STRONG PRESSURE GRADIENT BETWEEN LOW PRESSURE OFFSHORE AND BUILDING HIGH PRESSURE ACROSS THE MIDWEST...WILL BRING STRONG NORTHWEST WINDS LATER TONIGHT INTO FRIDAY. THE STRONGEST WINDS WILL OCCUR FRIDAY MORNING ALONG THE BLUE RIDGE...WITH GUSTS 50 TO 55 MPH POSSIBLE. VAZ011-013-019-020-211000- /O.EXA.KRNK.WI.Y.0003.110121T0500Z-110121T2100Z/ GILES-PULASKI-ALLEGHANY VA-BATH- INCLUDING THE CITIES OF...PEARISBURG...RADFORD...PULASKI... CLIFTON FORGE...COVINGTON...HOT SPRINGS 846 PM EST THU JAN 20 2011 ...WIND ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 4 PM EST FRIDAY... THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A WIND ADVISORY...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO 4 PM EST FRIDAY. * WINDS...NORTHWEST WINDS 15 TO 30 MPH WITH GUSTS TO 50 MPH. HIGHEST GUSTS WILL BE ALONG THE HIGHER ELEVATIONS. * TIMING...AFTER MIDNIGHT TONIGHT THROUGH FRIDAY AFTERNOON. STRONGEST WINDS EARLY FRIDAY MORNING. * IMPACTS...WINDS MAY CAUSE A FEW DOWNED TREES AND ISOLATED POWER OUTAGES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT WINDS OF 35 MPH ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION. && $$ NCZ001-002-018-VAZ014>018-022-032-033-211000- /O.CON.KRNK.WI.Y.0003.110121T0500Z-110121T2100Z/ ASHE-ALLEGHANY NC-WATAUGA-MONTGOMERY-GRAYSON-CARROLL-FLOYD-CRAIG- ROANOKE-PATRICK-FRANKLIN- INCLUDING THE CITIES OF...WEST JEFFERSON...SPARTA...BOONE... BLACKSBURG...INDEPENDENCE...WHITETOP...TROUTDALE...VOLNEY... GALAX...FLOYD...NEW CASTLE...ROANOKE...SALEM...STUART... ROCKY MOUNT 846 PM EST THU JAN 20 2011 ...WIND ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 4 PM EST FRIDAY... A WIND ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 4 PM EST FRIDAY. * WINDS...NORTHWEST WINDS 15 TO 30 MPH WITH GUSTS TO 50 MPH. HIGHEST GUSTS WILL BE ALONG THE HIGHER ELEVATIONS. * TIMING...AFTER MIDNIGHT TONIGHT THROUGH FRIDAY AFTERNOON. STRONGEST WINDS EARLY FRIDAY MORNING. * IMPACTS...WINDS MAY CAUSE A FEW DOWNED TREES AND ISOLATED POWER OUTAGES. 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. && $$
862 WWUS71 KRNK 210904 NPWRNK URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE BLACKSBURG VA 404 AM EST FRI JAN 21 2011 NCZ001-002-018-VAZ011-013>020-022-032-033-211015- /O.CAN.KRNK.WI.Y.0003.000000T0000Z-110121T2100Z/ ASHE-ALLEGHANY NC-WATAUGA-GILES-PULASKI-MONTGOMERY-GRAYSON- CARROLL-FLOYD-CRAIG-ALLEGHANY VA-BATH-ROANOKE-PATRICK-FRANKLIN- INCLUDING THE CITIES OF...WEST JEFFERSON...SPARTA...BOONE... PEARISBURG...RADFORD...PULASKI...BLACKSBURG...INDEPENDENCE... WHITETOP...TROUTDALE...VOLNEY...GALAX...FLOYD...NEW CASTLE... CLIFTON FORGE...COVINGTON...HOT SPRINGS...ROANOKE...SALEM... STUART...ROCKY MOUNT 404 AM EST FRI JAN 21 2011 ...WIND ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS CANCELLED THE WIND ADVISORY. WINDS WILL BE BLUSTERY TODAY...BUT SHOULD REMAIN BELOW 50 MPH. THERE MAY BE AN OCCASIONAL GUST OF 40 TO 45 MPH. $$
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.