Alert archive / North Carolina / Wind Advisories in 2012
Wind Advisory 19, NWS Blacksburg, VA
NWS Blacksburg, VA issued this wind advisory at Dec 29, 2012, 6:15 AM EST for 5 counties in North Carolina; 5 counties in Virginia. It took effect at Dec 29, 2012, 12:00 PM EST. It was in force for 24 hr.
The area
The counties it named.
The facts
- Issued
- Dec 29, 2012, 6:15 AM EST (11:15 UTC)
- In effect from
- Dec 29, 2012, 12:00 PM EST
- Expired
- Dec 30, 2012, 12:00 PM EST
- In force
- 24 hr
- Issued by
- NWS Blacksburg, VA
Counties Alleghany County, NC, Ashe County, NC, Surry County, NC, Watauga County, NC, Wilkes County, NC, Carroll County, VA, City of Galax, VA, Floyd County, VA, Grayson County, VA, Patrick County, VA
The radar
The Roanoke radar (KFCX), 82 km from the middle of the area, began a volume at 11:16 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 00:00Z, 11.3 hours before the alert went out and 109 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
- 1255 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- 66 m²/s²
- 0-3 km storm-relative helicity
- 110 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
370 WWUS71 KRNK 291115 NPWRNK URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE BLACKSBURG VA 615 AM EST SAT DEC 29 2012 ...LOW PRESSURE WILL DEEPEN OFF THE EAST COAST TONIGHT AND SUNDAY... .STRONG GUSTY WINDS AROUND THE DEVELOPING LOW WILL RESULT IN GUSTY WINDS BY THIS AFTERNOON. NCZ001>003-018-019-VAZ015>017-032-292100- /O.NEW.KRNK.WI.Y.0019.121229T1700Z-121230T1700Z/ ASHE-ALLEGHANY NC-SURRY-WATAUGA-WILKES-GRAYSON-CARROLL-FLOYD- PATRICK- INCLUDING THE CITIES OF...WEST JEFFERSON...SPARTA...DOBSON... BOONE...WILKESBORO...INDEPENDENCE...WHITETOP...TROUTDALE... VOLNEY...GALAX...FLOYD...STUART 615 AM EST SAT DEC 29 2012 ...WIND ADVISORY IN EFFECT FROM NOON TODAY TO NOON EST SUNDAY... THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A WIND ADVISORY...WHICH IS IN EFFECT FROM NOON TODAY TO NOON EST SUNDAY. * LOCATIONS...ALONG THE BLUE RIDGE FROM SOUTH OF ROANOKE INTO THE NORTHWEST NORTH CAROLINA MOUNTAINS. * HAZARDS...STRONG GUSTY NORTHWEST WINDS. * WINDS...NORTHWEST 15 TO 25 MPH WITH GUSTS UP TO 45 MPH. * TIMING...WINDS SPEEDS WILL INCREASE THIS AFTERNOON WITH THE STRONGEST WINDS LATE TONIGHT AND SUNDAY MORNING. * IMPACTS...LOOSE OBJECTS OUTDOORS MAY BE BLOWN AROUND. DOWNED TRESS LIMB AND BRANCHES ARE POSSIBLE. 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. && $$
4 follow-up statements
786 WWUS71 KRNK 291918 NPWRNK URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE BLACKSBURG VA 218 PM EST SAT DEC 29 2012 ...STRONG WINDS TO OVERSPREAD THE AREA TONIGHT INTO EARLY SUNDAY... .AN INTENSE LOW PRESSURE SYSTEM WILL MOVE NORTHEAST ALONG THE NEW ENGLAND COAST TONIGHT INTO SUNDAY AS HIGH PRESSURE BEGINS TO BUILD EAST INTO THE MID APPALACHIANS. A STRONG PRESSURE GRADIENT BETWEEN THE TWO SYSTEMS WILL RESULT IN INCREASING WINDS FROM THE WEST AND NORTHWEST...GUSTING TO 45 MPH AT TIMES TONIGHT INTO SUNDAY MORNING ACROSS THE HIGHER TERRAIN AND BETWEEN MOUNTAIN PASSES. NCZ001>003-018-019-VAZ015>017-032-301100- /O.CON.KRNK.WI.Y.0019.000000T0000Z-121230T1700Z/ ASHE-ALLEGHANY NC-SURRY-WATAUGA-WILKES-GRAYSON-CARROLL-FLOYD- PATRICK- INCLUDING THE CITIES OF...WEST JEFFERSON...SPARTA...DOBSON... BOONE...WILKESBORO...INDEPENDENCE...WHITETOP...TROUTDALE... VOLNEY...GALAX...FLOYD...STUART 218 PM EST SAT DEC 29 2012 ...WIND ADVISORY REMAINS IN EFFECT UNTIL NOON EST SUNDAY... * LOCATIONS...ALONG THE BLUE RIDGE FROM SOUTH OF ROANOKE INTO THE NORTHWEST NORTH CAROLINA MOUNTAINS. * HAZARDS...STRONG GUSTY NORTHWEST WINDS. * WINDS...NORTHWEST 15 TO 25 MPH WITH GUSTS UP TO 45 MPH. * TIMING...WINDS WILL CONTINUE TO SLOWLY INCREASE...WITH THE STRONGEST GUSTS EXPECTED LATE TONIGHT INTO SUNDAY MORNING. * IMPACTS...LOOSE OBJECTS OUTDOORS MAY BE BLOWN AROUND. DOWNED TRESS LIMB AND BRANCHES ARE POSSIBLE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT WINDS OF 35 MPH ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION. && $$ WERT
414 WWUS71 KRNK 300303 NPWRNK URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE BLACKSBURG VA 1003 PM EST SAT DEC 29 2012 ...STRONG WINDS WILL CONTINUE INTO EARLY SUNDAY... .STRONG LOW PRESSURE IS MOVING OFF THE NEW ENGLAND COAST LATE TONIGHT AS HIGH PRESSURE BUILDS EAST INTO THE MID APPALACHIANS. THE PRESSURE GRADIENT BETWEEN THESE TWO SYSTEMS IS CAUSING WEST TO NORTHWEST WINDS TO GUST UP TO 45 MPH AT TIMES ACROSS THE HIGHER TERRAIN AND BETWEEN MOUNTAIN PASSES. THIS ACTIVITY WILL DIMINISH EARLY SUNDAY MORNING. NCZ001>003-018-019-VAZ015>017-032-301115- /O.CON.KRNK.WI.Y.0019.000000T0000Z-121230T1700Z/ ASHE-ALLEGHANY NC-SURRY-WATAUGA-WILKES-GRAYSON-CARROLL-FLOYD- PATRICK- INCLUDING THE CITIES OF...WEST JEFFERSON...SPARTA...DOBSON... BOONE...WILKESBORO...INDEPENDENCE...WHITETOP...TROUTDALE... VOLNEY...GALAX...FLOYD...STUART 1003 PM EST SAT DEC 29 2012 ...WIND ADVISORY REMAINS IN EFFECT UNTIL NOON EST SUNDAY... * LOCATIONS...ALONG THE BLUE RIDGE FROM SOUTH OF ROANOKE INTO THE NORTHWEST NORTH CAROLINA MOUNTAINS. * HAZARDS...STRONG GUSTY NORTHWEST WINDS. * WINDS...NORTHWEST 15 TO 25 MPH WITH GUSTS UP TO 45 MPH. * TIMING...WINDS WILL CONTINUE TO SLOWLY INCREASE...WITH THE STRONGEST GUSTS EXPECTED LATE TONIGHT INTO SUNDAY MORNING. * IMPACTS...LOOSE OBJECTS OUTDOORS MAY BE BLOWN AROUND. DOWNED TRESS LIMB AND BRANCHES ARE POSSIBLE. 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. && $$
522 WWUS71 KRNK 300954 NPWRNK URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE BLACKSBURG VA 454 AM EST SUN DEC 30 2012 ...STRONG WINDS WILL CONTINUE THIS MORNING... .STRONG LOW PRESSURE WAS OFF THE NEW ENGLAND COAST EARLY THIS MORNING AS HIGH PRESSURE BUILDS EAST OVER THE TENNESSEE VALLEY AND SOUTHERN APPALACHIANS. THE PRESSURE GRADIENT BETWEEN THESE TWO SYSTEMS WILL CAUSE STRONG GUSTY WINDS. NCZ001>003-018-019-VAZ015>017-032-301700- /O.CON.KRNK.WI.Y.0019.000000T0000Z-121230T1700Z/ ASHE-ALLEGHANY NC-SURRY-WATAUGA-WILKES-GRAYSON-CARROLL-FLOYD- PATRICK- INCLUDING THE CITIES OF...WEST JEFFERSON...SPARTA...DOBSON... BOONE...WILKESBORO...INDEPENDENCE...WHITETOP...TROUTDALE... VOLNEY...GALAX...FLOYD...STUART 454 AM EST SUN DEC 30 2012 ...WIND ADVISORY REMAINS IN EFFECT UNTIL NOON EST TODAY... * LOCATIONS...ALONG THE BLUE RIDGE FROM SOUTH OF ROANOKE INTO THE NORTHWEST NORTH CAROLINA MOUNTAINS. * HAZARDS...STRONG GUSTY NORTHWEST WINDS. * WINDS...NORTHWEST 15 TO 25 MPH WITH GUSTS UP TO 45 MPH. * TIMING...THE STRONGEST GUSTS WILL BE EARLY THIS MORNING...THEN WINDS WILL DIMINISH THIS AFTERNOON. * IMPACTS...LOOSE OBJECTS OUTDOORS MAY BE BLOWN AROUND. DOWNED TRESS LIMB AND BRANCHES ARE POSSIBLE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT WINDS OF 35 MPH ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION. && $$
999 WWUS71 KRNK 301721 NPWRNK URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE BLACKSBURG VA 1221 PM EST SUN DEC 30 2012 ...THE WIND ADVISORY HAS EXPIRED... NCZ001>003-018-019-VAZ015>017-032-301830- /O.EXP.KRNK.WI.Y.0019.000000T0000Z-121230T1700Z/ ASHE-ALLEGHANY NC-SURRY-WATAUGA-WILKES-GRAYSON-CARROLL-FLOYD- PATRICK- INCLUDING THE CITIES OF...WEST JEFFERSON...SPARTA...DOBSON... BOONE...WILKESBORO...INDEPENDENCE...WHITETOP...TROUTDALE... VOLNEY...GALAX...FLOYD...STUART 1221 PM EST SUN DEC 30 2012 ...THE WIND ADVISORY HAS EXPIRED... HIGH PRESSURE CONTINUES TO BUILD ACROSS THE AREA TODAY...ALLOWING THE TIGHTENED PRESSURE GRADIENT TO RELAX. AS THIS OCCURS...WINDS SPEEDS HAVE ALREADY DROPPED BELOW ADVISORY CRITERIA...AND WILL CONTINUE TO DIMINISH THROUGH THE AFTERNOON. $$
Nearby
Wind Advisories in North Carolina, 2012Wind Advisories in Virginia, 2012Every wind advisory in 2012
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.