Alert archive / Virginia / Wind Advisories in 2011
Wind Advisory 30, NWS Blacksburg, VA
NWS Blacksburg, VA issued this wind advisory at Dec 27, 2011, 3:38 AM EST for 9 counties in Virginia; Alleghany County, Ashe County, Watauga County, North Carolina. It took effect at Dec 27, 2011, 4:00 PM EST. It was in force for 19 hr.
The area
The counties it named.
The facts
- Issued
- Dec 27, 2011, 3:38 AM EST (08:38 UTC)
- In effect from
- Dec 27, 2011, 4:00 PM EST
- Expired
- Dec 28, 2011, 11:17 AM EST
- In force
- 19 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, Craig County, VA, Floyd County, VA, Grayson County, VA, Montgomery County, VA
The radar
The Roanoke radar (KFCX), 34 km from the middle of the area, began a volume at 08:40 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, 8.6 hours before the alert went out and 104 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
- 2470 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 87 m²/s²
- 0-3 km storm-relative helicity
- 154 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
813 WWUS71 KRNK 270838 NPWRNK URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE BLACKSBURG VA 338 AM EST TUE DEC 27 2011 ...STRONG NORTHWEST WINDS EXPECTED BEHIND A COLD FRONT... .A LOW PRESSURE SYSTEM WILL LIFT NORTHEAST OUT OF THE TENNESSEE VALLEY TODAY FOLLOWED BY THE PASSING OF A STRONG COLD FRONT. NORTHWEST WINDS WILL BEGIN TO INCREASE THIS AFTERNOON INTO TONIGHT FOR THE ENTIRE AREA WITH THE STRONGEST GUSTS ALONG THE BLUE RIDGE. NCZ001-002-018-VAZ015-271645- /O.NEW.KRNK.WI.Y.0030.111227T2100Z-111228T1700Z/ ASHE-ALLEGHANY NC-WATAUGA-GRAYSON- INCLUDING THE CITIES OF...WEST JEFFERSON...SPARTA...BOONE... INDEPENDENCE...WHITETOP...TROUTDALE...VOLNEY 338 AM EST TUE DEC 27 2011 ...WIND ADVISORY IN EFFECT FROM 4 PM THIS AFTERNOON TO NOON EST WEDNESDAY... THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A WIND ADVISORY...WHICH IS IN EFFECT FROM 4 PM THIS AFTERNOON TO NOON EST WEDNESDAY. * LOCATIONS...NORTHWEST NORTH CAROLINA AND THE GRAYSON HIGHLANDS. * HAZARDS...STRONG AND GUSTY WINDS. * WINDS...WEST 25 TO 35 MPH WITH GUSTS UP TO 55 MPH. * TIMING...NORTHWEST WINDS WILL INCREASE THIS AFTERNOON WITH STRONGER GUSTS OVERNIGHT TONIGHT. * IMPACTS...LOCALIZED DOWNED TREES AND POWER LINES...POSSIBLY RESULTING IN SPOTTY POWER OUTAGES AND ROAD CLOSURES. 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. && $$ VAZ007-009-010-012-WVZ042-271500- /O.CON.KRNK.WI.Y.0029.000000T0000Z-111227T1500Z/ TAZEWELL-SMYTH-BLAND-WYTHE-MERCER- INCLUDING THE CITIES OF...TAZEWELL...MARION...BLAND... WYTHEVILLE...BLUEFIELD...FLAT TOP 338 AM EST TUE DEC 27 2011 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 10 AM EST THIS MORNING... * LOCATIONS...WESTERN FLANKS OF THE HIGHER MOUNTAIN RIDGES AND MOUNTAIN PASSES IN PORTIONS OF SOUTHWESTERN VIRGINIA...MAINLY WEST AND NORTHWEST OF MOUNT ROGERS. * HAZARDS...STRONG WIND GUSTS. * WINDS...SOUTH 15 TO 25 MPH WITH GUSTS UP TO 45 MPH. * TIMING...THIS MORNING. * IMPACTS...LOCALIZED DOWNED TREES AND POWER LINES...POSSIBLY RESULTING IN SPOTTY POWER OUTAGES AND ROAD CLOSURES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT WINDS OF 35 MPH ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION. && $$ RCS
5 follow-up statements
037 WWUS71 KRNK 271459 NPWRNK URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE BLACKSBURG VA 959 AM EST TUE DEC 27 2011 ...STRONG NORTHWEST WINDS EXPECTED BEHIND A COLD FRONT... .A LOW PRESSURE SYSTEM WILL LIFT NORTHEAST OUT OF THE TENNESSEE VALLEY THIS AFTERNOON FOLLOWED BY THE PASSING OF A STRONG COLD FRONT. NORTHWEST WINDS WILL BEGIN TO INCREASE THIS AFTERNOON INTO TONIGHT FOR THE ENTIRE AREA WITH THE STRONGEST GUSTS ALONG THE BLUE RIDGE. VAZ007-009-010-012-WVZ042-271600- /O.EXP.KRNK.WI.Y.0029.000000T0000Z-111227T1500Z/ TAZEWELL-SMYTH-BLAND-WYTHE-MERCER- INCLUDING THE CITIES OF...TAZEWELL...MARION...BLAND... WYTHEVILLE...BLUEFIELD...FLAT TOP 959 AM EST TUE DEC 27 2011 ...WIND ADVISORY WILL EXPIRE AT 10 AM EST THIS MORNING... OCCASIONAL SOUTHEAST WIND GUSTS TO 45 OR 50 MPH WILL BE ENDING SOON. THEREFORE THE WIND ADVISORY IS ALLOWED TO EXPIRE AT 10 AM. $$ NCZ001-002-018-VAZ015-272300- /O.CON.KRNK.WI.Y.0030.111227T2100Z-111228T1700Z/ ASHE-ALLEGHANY NC-WATAUGA-GRAYSON- INCLUDING THE CITIES OF...WEST JEFFERSON...SPARTA...BOONE... INDEPENDENCE...WHITETOP...TROUTDALE...VOLNEY 959 AM EST TUE DEC 27 2011 ...WIND ADVISORY REMAINS IN EFFECT FROM 4 PM THIS AFTERNOON TO NOON EST WEDNESDAY... * LOCATIONS...NORTHWEST NORTH CAROLINA AND THE GRAYSON HIGHLANDS. * HAZARDS...STRONG AND GUSTY WINDS. * WINDS...WEST 25 TO 35 MPH WITH GUSTS UP TO 55 MPH. * TIMING...NORTHWEST WINDS WILL INCREASE THIS AFTERNOON WITH STRONGER GUSTS OVERNIGHT TONIGHT. * IMPACTS...LOCALIZED DOWNED TREES AND POWER LINES...POSSIBLY RESULTING IN SPOTTY POWER OUTAGES AND ROAD CLOSURES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT WINDS OF 35 MPH ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION. && $$
261 WWUS71 KRNK 272012 NPWRNK URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE BLACKSBURG VA 312 PM EST TUE DEC 27 2011 ...EXPECT A PERIOD OF STRONG WINDS THIS EVENING AND AGAIN WEDNESDAY MORNING... .A DEEPENING LOW PRESSURE SYSTEM MOVING INTO THE MID ATLANTIC WILL BRING A SURGE OF COLDER AIR IN TONIGHT ALONG WITH GUSTY WINDS. THESE WINDS SHOULD GUST UP TO 50 MPH ON THE RIDGES...THEN LET UP SOME OVERNIGHT...BEFORE A SECOND SURGE ARRIVES AFTER DAWN WEDNESDAY. HIGH PRESSURE ENTERING THE TENNESSEE VALLEY WEDNESDAY AFTERNOON WILL WEAKEN THE WINDS. NCZ001-002-018-VAZ015-280415- /O.CON.KRNK.WI.Y.0030.111227T2100Z-111228T1700Z/ ASHE-ALLEGHANY NC-WATAUGA-GRAYSON- INCLUDING THE CITIES OF...WEST JEFFERSON...SPARTA...BOONE... INDEPENDENCE...WHITETOP...TROUTDALE...VOLNEY 312 PM EST TUE DEC 27 2011 ...WIND ADVISORY REMAINS IN EFFECT UNTIL NOON EST WEDNESDAY... * LOCATIONS...NORTHWEST NORTH CAROLINA AND THE GRAYSON HIGHLANDS. * HAZARDS...STRONG AND GUSTY WINDS. * WINDS...WEST 20 TO 30 MPH WITH GUSTS UP TO 50 MPH. * TIMING...NORTHWEST WINDS WILL BE STRONGEST THIS EVENING WITH A SECOND SURGE JUST AFTER DAWN WEDNESDAY. * IMPACTS...LOCALIZED DOWNED TREES AND POWER LINES...POSSIBLY RESULTING IN SPOTTY POWER OUTAGES AND ROAD CLOSURES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT WIND GUSTS OVER 45 MPH ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. THESE WINDS COULD ALSO DOWN TREES IF THE GROUND IS WET OR THE TREES ARE SHALLOW ROOTED. EXERCISE CAUTION TRAVELING TONIGHT INTO WEDNESDAY. && $$
554 WWUS71 KRNK 280223 AAA NPWRNK URGENT - WEATHER MESSAGE...UPDATED NATIONAL WEATHER SERVICE BLACKSBURG VA 923 PM EST TUE DEC 27 2011 ...STRONG WINDS TO CONTINUE OVERNIGHT WITH STRONGEST SPEEDS EXPECTED EARLY WEDNESDAY MORNING... .A DEEPENING LOW PRESSURE SYSTEM MOVING INTO THE MID ATLANTIC WILL BRING A SURGE OF COLDER AIR IN TONIGHT ALONG WITH GUSTY WINDS. THESE WINDS SHOULD GUST UP TO 55 MPH ON THE RIDGES...THEN LET UP SOME OVERNIGHT...BEFORE A SECOND SURGE ARRIVES AROUND DAWN WEDNESDAY. HIGH PRESSURE ENTERING THE TENNESSEE VALLEY WEDNESDAY AFTERNOON WILL WEAKEN THE WINDS. VAZ014-016>020-281030- /O.EXA.KRNK.WI.Y.0030.000000T0000Z-111228T1700Z/ MONTGOMERY-CARROLL-FLOYD-CRAIG-ALLEGHANY VA-BATH- INCLUDING THE CITIES OF...BLACKSBURG...GALAX...FLOYD... NEW CASTLE...CLIFTON FORGE...COVINGTON...HOT SPRINGS 923 PM EST TUE DEC 27 2011 ...WIND ADVISORY IN EFFECT UNTIL NOON EST WEDNESDAY... THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A WIND ADVISORY...WHICH IS IN EFFECT UNTIL NOON EST WEDNESDAY. * LOCATIONS...ALONG THE BLUE RIDGE. * HAZARDS...STRONG WINDS. * WINDS...WEST 20 TO 25 MPH WITH GUSTS UP TO 50 MPH. * TIMING...OVERNIGHT WITH THE STRONGEST WINDS NEAR DAWN ON WEDNESDAY. * IMPACTS...DOWNED TREES AND POWER LINES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT WINDS OF 35 MPH ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION. && $$ NCZ001-002-018-VAZ015-281030- /O.CON.KRNK.WI.Y.0030.000000T0000Z-111228T1700Z/ ASHE-ALLEGHANY NC-WATAUGA-GRAYSON- INCLUDING THE CITIES OF...WEST JEFFERSON...SPARTA...BOONE... INDEPENDENCE...WHITETOP...TROUTDALE...VOLNEY 923 PM EST TUE DEC 27 2011 ...WIND ADVISORY REMAINS IN EFFECT UNTIL NOON EST WEDNESDAY... * LOCATIONS...NORTHWEST NORTH CAROLINA AND THE GRAYSON HIGHLANDS. * HAZARDS...STRONG AND GUSTY WINDS. * WINDS...WEST 20 TO 30 MPH WITH GUSTS UP TO 55 MPH. * TIMING...NORTHWEST WINDS WILL REMAIN STRONG TONIGHT AND INCREASE AGAIN AROUND DAWN WEDNESDAY. * IMPACTS...LOCALIZED DOWNED TREES AND POWER LINES...POSSIBLY RESULTING IN SPOTTY POWER OUTAGES AND ROAD CLOSURES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT WIND GUSTS OVER 45 MPH ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. THESE WINDS COULD ALSO DOWN TREES IF THE GROUND IS WET OR THE TREES ARE SHALLOW ROOTED. EXERCISE CAUTION TRAVELING TONIGHT INTO WEDNESDAY. && $$
965 WWUS71 KRNK 280816 NPWRNK URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE BLACKSBURG VA 316 AM EST WED DEC 28 2011 ...STRONG WINDS TO CONTINUE THIS MORNING... .A LOW PRESSURE OVER MAINE AND HIGH PRESSURE ALONG THE GULF WILL KEEP A TIGHT PRESSURE GRADIENT OVER THE AREA THIS MORNING. THESE WINDS SHOULD GUST UP TO 55 MPH ON THE RIDGES. HIGH PRESSURE ENTERING THE TENNESSEE VALLEY THIS AFTERNOON WILL WEAKEN THE WINDS. NCZ001-002-018-VAZ015-281615- /O.CON.KRNK.WI.Y.0030.000000T0000Z-111228T1700Z/ ASHE-ALLEGHANY NC-WATAUGA-GRAYSON- INCLUDING THE CITIES OF...WEST JEFFERSON...SPARTA...BOONE... INDEPENDENCE...WHITETOP...TROUTDALE...VOLNEY 316 AM EST WED DEC 28 2011 ...WIND ADVISORY REMAINS IN EFFECT UNTIL NOON EST TODAY... * LOCATIONS...NORTHWEST NORTH CAROLINA AND THE GRAYSON HIGHLANDS. * HAZARDS...STRONG AND GUSTY WINDS. * WINDS...NORTHWEST 20 TO 35 MPH WITH GUSTS UP TO 55 MPH. * TIMING...THIS MORNING. * IMPACTS...LOCALIZED DOWNED TREES AND POWER LINES...POSSIBLY RESULTING IN SPOTTY POWER OUTAGES AND ROAD CLOSURES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT WIND GUSTS OVER 45 MPH ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. THESE WINDS COULD ALSO DOWN TREES IF THE GROUND IS WET OR THE TREES ARE SHALLOW ROOTED. EXERCISE CAUTION TRAVELING TONIGHT INTO WEDNESDAY. && $$ VAZ014-016>020-281615- /O.CON.KRNK.WI.Y.0030.000000T0000Z-111228T1700Z/ MONTGOMERY-CARROLL-FLOYD-CRAIG-ALLEGHANY VA-BATH- INCLUDING THE CITIES OF...BLACKSBURG...GALAX...FLOYD... NEW CASTLE...CLIFTON FORGE...COVINGTON...HOT SPRINGS 316 AM EST WED DEC 28 2011 ...WIND ADVISORY REMAINS IN EFFECT UNTIL NOON EST TODAY... * LOCATIONS...ALONG THE BLUE RIDGE. * HAZARDS...STRONG WINDS. * WINDS...WEST 20 TO 30 MPH WITH GUSTS UP TO 50 MPH. * TIMING...THIS MORNING. * IMPACTS...DOWNED 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. && $$ RCS
543 WWUS71 KRNK 281617 NPWRNK URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE BLACKSBURG VA 1117 AM EST WED DEC 28 2011 NCZ001-002-018-VAZ014>020-281730- /O.CAN.KRNK.WI.Y.0030.000000T0000Z-111228T1700Z/ ASHE-ALLEGHANY NC-WATAUGA-MONTGOMERY-GRAYSON-CARROLL-FLOYD-CRAIG- ALLEGHANY VA-BATH- INCLUDING THE CITIES OF...WEST JEFFERSON...SPARTA...BOONE... BLACKSBURG...INDEPENDENCE...WHITETOP...TROUTDALE...VOLNEY... GALAX...FLOYD...NEW CASTLE...CLIFTON FORGE...COVINGTON... HOT SPRINGS 1117 AM EST WED DEC 28 2011 ...WIND ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS CANCELLED THE WIND ADVISORY. WINDS ARE BEGINNING TO WEAKEN BELOW ADVISORY LEVELS OF 45 MPH GUSTS...AND WITH HIGH PRESSURE ARRIVING INTO THE TENNESSEE VALLEY...THE WINDS SHOULD CONTINUE TO GRADUALLY WEAKEN THIS AFTERNOON. THERE WILL STILL BE GUSTS UP TO 40 MPH IN THE HIGHER ELEVATIONS AND THROUGH SOME MOUNTAIN PASSES. $$
The office that day
Everything else NWS Blacksburg, VA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 27, 3:38 AM EST | Winter Weather Advisory | RNK | Ashe, Watauga | 32 hr |
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.