Alert archive / Virginia / Wind Advisories in 2026
Wind Advisory 3, NWS Blacksburg, VA
NWS Blacksburg, VA issued this wind advisory at Jan 31, 2026, 11:36 AM EST for Alleghany County, Ashe County, Watauga County, North Carolina; 7 counties in Virginia. It took effect at Jan 31, 2026, 7:00 PM EST. It was in force for 18 hr.
The area
The counties it named.
The facts
- Issued
- Jan 31, 2026, 11:36 AM EST (16:36 UTC)
- In effect from
- Jan 31, 2026, 7:00 PM EST
- Expired
- Feb 1, 2026, 12:44 PM EST
- In force
- 18 hr
- Issued by
- NWS Blacksburg, VA
Counties Alleghany County, NC, Ashe County, NC, Watauga County, NC, Carroll County, VA, City of Galax, VA, City of Roanoke, VA, City of Salem, VA, Floyd County, VA, Grayson County, VA, Roanoke County, VA
The radar
The Roanoke radar (KFCX), 50 km from the middle of the area, began a volume at 16:39 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, 4.6 hours before the alert went out and 110 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
- 705 m above ground
- 0-6 km bulk shear
- 87 kt
- 0-1 km storm-relative helicity
- -5 m²/s²
- 0-3 km storm-relative helicity
- 227 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
586 WWUS71 KRNK 311636 NPWRNK URGENT - WEATHER MESSAGE National Weather Service Blacksburg VA 1136 AM EST Sat Jan 31 2026 NCZ001-002-018-VAZ015>017-022-010000- /O.NEW.KRNK.WI.Y.0003.260201T0000Z-260201T2100Z/ /O.CON.KRNK.EC.W.0003.260131T1800Z-260201T1800Z/ Ashe-Alleghany NC-Watauga-Grayson-Carroll-Floyd-Roanoke- Including the cities of Sparta, West Jefferson, Boone, Galax, Volney, Salem, Independence, Whitetop, Roanoke, Troutdale, and Floyd 1136 AM EST Sat Jan 31 2026 ...EXTREME COLD WARNING REMAINS IN EFFECT UNTIL 1 PM EST SUNDAY... ...WIND ADVISORY IN EFFECT FROM 7 PM THIS EVENING TO 4 PM EST SUNDAY... * WHAT...For the Extreme Cold Warning, dangerously cold wind chills as low as 20 below expected. For the Wind Advisory, northwest winds 15 to 25 mph with gusts up to 50 mph expected. * WHERE...In North Carolina, Alleghany NC, Ashe, and Watauga Counties. In Virginia, Carroll, Floyd, Grayson, and Roanoke Counties. * WHEN...For the Extreme Cold Warning, until 1 PM EST Sunday. For the Wind Advisory, from 7 PM this evening to 4 PM EST Sunday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. The dangerously cold wind chills as low as 20 below zero could cause frostbite on exposed skin in as little as 30 minutes. Frostbite and hypothermia will occur if unprotected skin is exposed to these temperatures. PRECAUTIONARY/PREPAREDNESS ACTIONS... Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. Dress in layers including a hat, face mask, and gloves if you must go outside. Keep pets indoors as much as possible. && $$ NCZ003-019-020-VAZ007-009>014-018>020-023-024-032>035-WVZ042>044-507- 508-010000- /O.CON.KRNK.EC.W.0003.260131T1800Z-260201T1800Z/ Surry-Wilkes-Yadkin-Tazewell-Smyth-Bland-Giles-Wythe-Pulaski- Montgomery-Craig-Alleghany VA-Bath-Botetourt-Rockbridge-Patrick- Franklin-Bedford-Amherst-Mercer-Summers-Monroe-Eastern Greenbrier- Western Greenbrier- Including the cities of Union, Buena Vista, Hix, Alderson, Stuart, White Sulphur Springs, Lexington, Pulaski, Radford, Yadkinville, Marion, Tazewell, Blacksburg, Amherst, Bland, Wilkesboro, Covington, Clifton Forge, Rainelle, Hot Springs, Lewisburg, Bedford, Rocky Mount, Hinton, Flat Top, Quinwood, New Castle, Dobson, Pearisburg, Duo, Bluefield, Fincastle, and Wytheville 1136 AM EST Sat Jan 31 2026 ...EXTREME COLD WARNING REMAINS IN EFFECT UNTIL 1 PM EST SUNDAY... * WHAT...Dangerously cold wind chills as low as 15 below expected. * WHERE...Portions of north central and northwest North Carolina, central, south central, southwest, and west central Virginia, and southeast West Virginia. * WHEN...Until 1 PM EST Sunday. * IMPACTS...The cold wind chills as low as 15 below zero could result in hypothermia or frostbite if precautions are not taken. Frostbite and hypothermia will occur if unprotected skin is exposed to these temperatures. PRECAUTIONARY/PREPAREDNESS ACTIONS... Dress in layers including a hat, face mask, and gloves if you must go outside. Keep pets indoors as much as possible. && $$ NCZ004>006-VAZ043>047-058-059-010000- /O.CON.KRNK.CW.Y.0006.260201T0000Z-260201T1500Z/ Stokes-Rockingham-Caswell-Henry-Pittsylvania-Campbell-Appomattox- Buckingham-Halifax-Charlotte- Including the cities of Keysville, Eden, South Boston, Danville, Lynchburg, Martinsville, Appomattox, Danbury, and Yanceyville 1136 AM EST Sat Jan 31 2026 ...COLD WEATHER ADVISORY REMAINS IN EFFECT FROM 7 PM THIS EVENING TO 10 AM EST SUNDAY... * WHAT...Very cold wind chills as low as 5 below expected. * WHERE...In North Carolina, Caswell, Rockingham, and Stokes Counties. In Virginia, Appomattox, Buckingham, Campbell, Charlotte, Halifax, Henry, and Pittsylvania Counties. * WHEN...From 7 PM this evening to 10 AM EST Sunday. * IMPACTS...Very cold temperatures can lead to hypothermia with prolonged exposure. PRECAUTIONARY/PREPAREDNESS ACTIONS... Dress in layers including a hat, face mask, and gloves if you must go outside. Keep pets indoors as much as possible. If you do not have heat in your home or lack shelter, you can call 211 for assistance locating appropriate shelter from the cold. && $$ BMG
4 follow-up statements
937 WWUS71 KRNK 010013 NPWRNK URGENT - WEATHER MESSAGE National Weather Service Blacksburg VA 713 PM EST Sat Jan 31 2026 NCZ001-002-018-VAZ015>017-022-011200- /O.CON.KRNK.EC.W.0003.000000T0000Z-260201T1800Z/ /O.CON.KRNK.WI.Y.0003.000000T0000Z-260201T2100Z/ Ashe-Alleghany NC-Watauga-Grayson-Carroll-Floyd-Roanoke- Including the cities of Independence, Volney, Sparta, Troutdale, Galax, Salem, Boone, West Jefferson, Floyd, Roanoke, and Whitetop 713 PM EST Sat Jan 31 2026 ...EXTREME COLD WARNING REMAINS IN EFFECT UNTIL 1 PM EST SUNDAY... ...WIND ADVISORY REMAINS IN EFFECT UNTIL 4 PM EST SUNDAY... * WHAT...For the Extreme Cold Warning, dangerously cold wind chills as low as 20 below expected. For the Wind Advisory, northwest winds 15 to 25 mph with gusts up to 50 mph expected. * WHERE...In North Carolina, Alleghany NC, Ashe, and Watauga Counties. In Virginia, Carroll, Floyd, Grayson, and Roanoke Counties. * WHEN...For the Extreme Cold Warning, until 1 PM EST Sunday. For the Wind Advisory, until 4 PM EST Sunday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. The dangerously cold wind chills as low as 20 below zero could cause frostbite on exposed skin in as little as 30 minutes. Frostbite and hypothermia will occur if unprotected skin is exposed to these temperatures. PRECAUTIONARY/PREPAREDNESS ACTIONS... Dress in layers including a hat, face mask, and gloves if you must go outside. Keep pets indoors as much as possible. If you do not have heat in your home or lack shelter, you can call 211 for assistance locating appropriate shelter from the cold. && $$ NCZ003-019-020-VAZ007-009>014-018>020-023-024-032>035-WVZ042>044-507- 508-011200- /O.CON.KRNK.EC.W.0003.000000T0000Z-260201T1800Z/ Surry-Wilkes-Yadkin-Tazewell-Smyth-Bland-Giles-Wythe-Pulaski- Montgomery-Craig-Alleghany VA-Bath-Botetourt-Rockbridge-Patrick- Franklin-Bedford-Amherst-Mercer-Summers-Monroe-Eastern Greenbrier- Western Greenbrier- Including the cities of Pearisburg, Union, Bluefield, Pulaski, Marion, Rocky Mount, Tazewell, New Castle, Quinwood, Lewisburg, Wilkesboro, Hix, White Sulphur Springs, Rainelle, Hot Springs, Fincastle, Yadkinville, Bland, Dobson, Wytheville, Amherst, Stuart, Hinton, Lexington, Alderson, Covington, Duo, Bedford, Blacksburg, Flat Top, Radford, Buena Vista, and Clifton Forge 713 PM EST Sat Jan 31 2026 ...EXTREME COLD WARNING REMAINS IN EFFECT UNTIL 1 PM EST SUNDAY... * WHAT...Dangerously cold wind chills as low as 15 below expected. * WHERE...Portions of north central and northwest North Carolina, central, south central, southwest, and west central Virginia, and southeast West Virginia. * WHEN...Until 1 PM EST Sunday. * IMPACTS...The cold wind chills as low as 15 below zero could result in hypothermia or frostbite if precautions are not taken. Frostbite and hypothermia will occur if unprotected skin is exposed to these temperatures. PRECAUTIONARY/PREPAREDNESS ACTIONS... Dress in layers including a hat, face mask, and gloves if you must go outside. Keep pets indoors as much as possible. && $$ NCZ004>006-VAZ043>047-058-059-011200- /O.CON.KRNK.CW.Y.0006.000000T0000Z-260201T1500Z/ Stokes-Rockingham-Caswell-Henry-Pittsylvania-Campbell-Appomattox- Buckingham-Halifax-Charlotte- Including the cities of Danville, Yanceyville, Keysville, Eden, South Boston, Appomattox, Danbury, Martinsville, and Lynchburg 713 PM EST Sat Jan 31 2026 ...COLD WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM EST SUNDAY... * WHAT...Very cold wind chills as low as 5 below. * WHERE...In North Carolina, Caswell, Rockingham, and Stokes Counties. In Virginia, Appomattox, Buckingham, Campbell, Charlotte, Halifax, Henry, and Pittsylvania Counties. * WHEN...Until 10 AM EST Sunday. * IMPACTS...Very cold temperatures can lead to hypothermia with prolonged exposure. PRECAUTIONARY/PREPAREDNESS ACTIONS... Dress in layers including a hat, face mask, and gloves if you must go outside. Keep pets indoors as much as possible. If you do not have heat in your home or lack shelter, you can call 211 for assistance locating appropriate shelter from the cold. && $$ EB
045 WWUS71 KRNK 010635 NPWRNK URGENT - WEATHER MESSAGE National Weather Service Blacksburg VA 135 AM EST Sun Feb 1 2026 WVZ507-508-011530- /O.NEW.KRNK.CW.Y.0007.260201T2100Z-260202T1600Z/ /O.CON.KRNK.EC.W.0003.000000T0000Z-260201T1800Z/ Eastern Greenbrier-Western Greenbrier- Including the cities of Alderson, White Sulphur Springs, Rainelle, Lewisburg, Quinwood, and Duo 135 AM EST Sun Feb 1 2026 ...EXTREME COLD WARNING REMAINS IN EFFECT UNTIL 1 PM EST THIS AFTERNOON... ...COLD WEATHER ADVISORY IN EFFECT FROM 4 PM THIS AFTERNOON TO 11 AM EST MONDAY... * WHAT...For the Extreme Cold Warning, dangerously cold wind chills as low as 23 below. For the Cold Weather Advisory, very cold wind chills as low as 10 below expected. * WHERE...Eastern Greenbrier and Western Greenbrier Counties. * WHEN...For the Extreme Cold Warning, until 1 PM EST this afternoon. For the Cold Weather Advisory, from 4 PM this afternoon to 11 AM EST Monday. * IMPACTS...The dangerously cold wind chills as low as 25 below zero could cause frostbite on exposed skin in as little as 30 minutes. Frostbite and hypothermia will occur if unprotected skin is exposed to these temperatures. PRECAUTIONARY/PREPAREDNESS ACTIONS... Dress in layers including a hat, face mask, and gloves if you must go outside. Keep pets indoors as much as possible. && $$ NCZ001-002-018-VAZ015>017-022-011530- /O.CON.KRNK.EC.W.0003.000000T0000Z-260201T1800Z/ /O.CON.KRNK.WI.Y.0003.000000T0000Z-260201T2100Z/ Ashe-Alleghany NC-Watauga-Grayson-Carroll-Floyd-Roanoke- Including the cities of Floyd, Galax, Salem, Roanoke, Whitetop, Boone, Sparta, Volney, Independence, West Jefferson, and Troutdale 135 AM EST Sun Feb 1 2026 ...EXTREME COLD WARNING REMAINS IN EFFECT UNTIL 1 PM EST THIS AFTERNOON... ...WIND ADVISORY REMAINS IN EFFECT UNTIL 4 PM EST THIS AFTERNOON... * WHAT...For the Extreme Cold Warning, dangerously cold wind chills as low as 20 below expected. For the Wind Advisory, northwest winds 15 to 25 mph with gusts up to 50 mph expected. * WHERE...In North Carolina, Alleghany NC, Ashe, and Watauga Counties. In Virginia, Carroll, Floyd, Grayson, and Roanoke Counties. * WHEN...For the Extreme Cold Warning, until 1 PM EST this afternoon. For the Wind Advisory, until 4 PM EST this afternoon. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. The dangerously cold wind chills as low as 20 below zero could cause frostbite on exposed skin in as little as 30 minutes. Frostbite and hypothermia will occur if unprotected skin is exposed to these temperatures. PRECAUTIONARY/PREPAREDNESS ACTIONS... Dress in layers including a hat, face mask, and gloves if you must go outside. Keep pets indoors as much as possible. If you do not have heat in your home or lack shelter, you can call 211 for assistance locating appropriate shelter from the cold. && $$ NCZ003-019-020-VAZ007-009>014-018>020-023-024-032>035-WVZ042>044- 011530- /O.CON.KRNK.EC.W.0003.000000T0000Z-260201T1800Z/ Surry-Wilkes-Yadkin-Tazewell-Smyth-Bland-Giles-Wythe-Pulaski- Montgomery-Craig-Alleghany VA-Bath-Botetourt-Rockbridge-Patrick- Franklin-Bedford-Amherst-Mercer-Summers-Monroe- Including the cities of Wilkesboro, Marion, Stuart, Hinton, Covington, Rocky Mount, Buena Vista, Pearisburg, Bland, Tazewell, Pulaski, Hix, Radford, Amherst, Union, Hot Springs, Blacksburg, Bluefield, Wytheville, Lexington, Yadkinville, Dobson, New Castle, Fincastle, Bedford, Flat Top, and Clifton Forge 135 AM EST Sun Feb 1 2026 ...EXTREME COLD WARNING REMAINS IN EFFECT UNTIL 1 PM EST THIS AFTERNOON... * WHAT...Dangerously cold wind chills as low as 16 below. * WHERE...Portions of north central and northwest North Carolina, central, south central, southwest, and west central Virginia, and southeast West Virginia. * WHEN...Until 1 PM EST this afternoon. * IMPACTS...The cold wind chills as low as 15 below zero could result in hypothermia or frostbite if precautions are not taken. Frostbite and hypothermia will occur if unprotected skin is exposed to these temperatures. PRECAUTIONARY/PREPAREDNESS ACTIONS... Dress in layers including a hat, face mask, and gloves if you must go outside. Keep pets indoors as much as possible. && $$ NCZ004>006-VAZ043>047-058-059-011500- /O.CON.KRNK.CW.Y.0006.000000T0000Z-260201T1500Z/ Stokes-Rockingham-Caswell-Henry-Pittsylvania-Campbell-Appomattox- Buckingham-Halifax-Charlotte- Including the cities of Lynchburg, Yanceyville, Martinsville, Danbury, South Boston, Eden, Appomattox, Keysville, and Danville 135 AM EST Sun Feb 1 2026 ...COLD WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM EST THIS MORNING... * WHAT...Very cold wind chills as low as 5 below. * WHERE...In North Carolina, Caswell, Rockingham, and Stokes Counties. In Virginia, Appomattox, Buckingham, Campbell, Charlotte, Halifax, Henry, and Pittsylvania Counties. * WHEN...Until 10 AM EST this morning. * IMPACTS...Very cold temperatures can lead to hypothermia with prolonged exposure. PRECAUTIONARY/PREPAREDNESS ACTIONS... Dress in layers including a hat, face mask, and gloves if you must go outside. Keep pets indoors as much as possible. If you do not have heat in your home or lack shelter, you can call 211 for assistance locating appropriate shelter from the cold. && $$ AS
085 WWUS71 KRNK 011453 NPWRNK URGENT - WEATHER MESSAGE National Weather Service Blacksburg VA 953 AM EST Sun Feb 1 2026 NCZ004>006-VAZ043>047-058-059-011600- /O.EXP.KRNK.CW.Y.0006.000000T0000Z-260201T1500Z/ Stokes-Rockingham-Caswell-Henry-Pittsylvania-Campbell-Appomattox- Buckingham-Halifax-Charlotte- Including the cities of Martinsville, Danville, Keysville, South Boston, Yanceyville, Lynchburg, Danbury, Eden, and Appomattox 953 AM EST Sun Feb 1 2026 ...COLD WEATHER ADVISORY WILL EXPIRE AT 10 AM EST THIS MORNING... $$ NCZ001-002-018-VAZ015>017-022-012100- /O.CON.KRNK.EC.W.0003.000000T0000Z-260201T1800Z/ /O.CON.KRNK.WI.Y.0003.000000T0000Z-260201T2100Z/ Ashe-Alleghany NC-Watauga-Grayson-Carroll-Floyd-Roanoke- Including the cities of Floyd, Roanoke, Galax, Salem, West Jefferson, Boone, Whitetop, Sparta, Troutdale, Independence, and Volney 953 AM EST Sun Feb 1 2026 ...EXTREME COLD WARNING REMAINS IN EFFECT UNTIL 1 PM EST THIS AFTERNOON... ...WIND ADVISORY REMAINS IN EFFECT UNTIL 4 PM EST THIS AFTERNOON... * WHAT...For the Extreme Cold Warning, dangerously cold wind chills as low as 20 below expected. For the Wind Advisory, northwest winds 15 to 25 mph with gusts up to 45 mph expected. * WHERE...In North Carolina, Alleghany NC, Ashe, and Watauga Counties. In Virginia, Carroll, Floyd, Grayson, and Roanoke Counties. * WHEN...For the Extreme Cold Warning, until 1 PM EST this afternoon. For the Wind Advisory, until 4 PM EST this afternoon. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. The dangerously cold wind chills as low as 20 below zero could cause frostbite on exposed skin in as little as 30 minutes. Frostbite and hypothermia will occur if unprotected skin is exposed to these temperatures. PRECAUTIONARY/PREPAREDNESS ACTIONS... Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. Dress in layers including a hat, face mask, and gloves if you must go outside. Keep pets indoors as much as possible. && $$ WVZ507-508-012100- /O.CON.KRNK.EC.W.0003.000000T0000Z-260201T1800Z/ /O.CON.KRNK.CW.Y.0007.260201T2100Z-260202T1600Z/ Eastern Greenbrier-Western Greenbrier- Including the cities of White Sulphur Springs, Duo, Quinwood, Rainelle, Alderson, and Lewisburg 953 AM EST Sun Feb 1 2026 ...EXTREME COLD WARNING REMAINS IN EFFECT UNTIL 1 PM EST THIS AFTERNOON... ...COLD WEATHER ADVISORY REMAINS IN EFFECT FROM 4 PM THIS AFTERNOON TO 11 AM EST MONDAY... * WHAT...For the Extreme Cold Warning, dangerously cold wind chills as low as 20 below. For the Cold Weather Advisory, very cold wind chills as low as 10 below expected. * WHERE...Eastern Greenbrier and Western Greenbrier Counties. * WHEN...For the Extreme Cold Warning, until 1 PM EST this afternoon. For the Cold Weather Advisory, from 4 PM this afternoon to 11 AM EST Monday. * IMPACTS...The dangerously cold wind chills as low as 20 below zero could result in hypothermia or frostbite if precautions are not taken. Frostbite and hypothermia will occur if unprotected skin is exposed to these temperatures. PRECAUTIONARY/PREPAREDNESS ACTIONS... Dress in layers including a hat, face mask, and gloves if you must go outside. Keep pets indoors as much as possible. Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. && $$ NCZ003-019-020-VAZ007-009>014-018>020-023-024-032>035-WVZ042>044- 011800- /O.CON.KRNK.EC.W.0003.000000T0000Z-260201T1800Z/ Surry-Wilkes-Yadkin-Tazewell-Smyth-Bland-Giles-Wythe-Pulaski- Montgomery-Craig-Alleghany VA-Bath-Botetourt-Rockbridge-Patrick- Franklin-Bedford-Amherst-Mercer-Summers-Monroe- Including the cities of Yadkinville, Tazewell, Pearisburg, Union, Lexington, Dobson, Bedford, Bland, Covington, Bluefield, Blacksburg, Stuart, Hot Springs, Marion, New Castle, Wilkesboro, Rocky Mount, Amherst, Radford, Pulaski, Hinton, Wytheville, Clifton Forge, Buena Vista, Hix, Flat Top, and Fincastle 953 AM EST Sun Feb 1 2026 ...EXTREME COLD WARNING REMAINS IN EFFECT UNTIL 1 PM EST THIS AFTERNOON... * WHAT...Dangerously cold wind chills as low as 10 below. * WHERE...Portions of north central and northwest North Carolina, central, south central, southwest, and west central Virginia, and southeast West Virginia. * WHEN...Until 1 PM EST this afternoon. * IMPACTS...The cold wind chills as low as 10 below zero could result in hypothermia if precautions are not taken. Frostbite and hypothermia will occur if unprotected skin is exposed to these temperatures. PRECAUTIONARY/PREPAREDNESS ACTIONS... Dress in layers including a hat, face mask, and gloves if you must go outside. Keep pets indoors as much as possible. && $$ BMG
335 WWUS71 KRNK 011744 NPWRNK URGENT - WEATHER MESSAGE National Weather Service Blacksburg VA 1244 PM EST Sun Feb 1 2026 NCZ001-002-018-VAZ015>017-020145- /O.CAN.KRNK.WI.Y.0003.000000T0000Z-260201T2100Z/ /O.EXP.KRNK.EC.W.0003.000000T0000Z-260201T1800Z/ /O.EXB.KRNK.CW.Y.0007.260201T2300Z-260202T1400Z/ Ashe-Alleghany NC-Watauga-Grayson-Carroll-Floyd- Including the cities of Floyd, Galax, West Jefferson, Boone, Whitetop, Sparta, Troutdale, Independence, and Volney 1244 PM EST Sun Feb 1 2026 ...COLD WEATHER ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO 9 AM EST MONDAY... ...WIND ADVISORY IS CANCELLED... ...EXTREME COLD WARNING WILL EXPIRE AT 1 PM EST THIS AFTERNOON... * WHAT...Very cold wind chills as low as 10 below expected. * WHERE...In North Carolina, Alleghany NC, Ashe, and Watauga Counties. In Virginia, Carroll, Floyd, and Grayson Counties. * WHEN...From 6 PM this evening to 9 AM EST Monday. * IMPACTS...The cold wind chills as low as 10 below zero could result in hypothermia if precautions are not taken. PRECAUTIONARY/PREPAREDNESS ACTIONS... Dress in layers including a hat, face mask, and gloves if you must go outside. Keep pets indoors as much as possible. If you do not have heat in your home or lack shelter, you can call 211 for assistance locating appropriate shelter from the cold. && $$ VAZ022-011845- /O.CAN.KRNK.WI.Y.0003.000000T0000Z-260201T2100Z/ /O.EXP.KRNK.EC.W.0003.000000T0000Z-260201T1800Z/ Roanoke- Including the cities of Salem and Roanoke 1244 PM EST Sun Feb 1 2026 ...WIND ADVISORY IS CANCELLED... ...EXTREME COLD WARNING WILL EXPIRE AT 1 PM EST THIS AFTERNOON... $$ VAZ007-009>014-018>020-WVZ042>044-020145- /O.EXP.KRNK.EC.W.0003.000000T0000Z-260201T1800Z/ /O.EXB.KRNK.CW.Y.0007.260201T2300Z-260202T1400Z/ Tazewell-Smyth-Bland-Giles-Wythe-Pulaski-Montgomery-Craig- Alleghany VA-Bath-Mercer-Summers-Monroe- Including the cities of Radford, Tazewell, Pearisburg, Bland, Pulaski, Covington, Bluefield, Hinton, Union, Wytheville, Clifton Forge, Blacksburg, Hot Springs, Marion, Hix, Flat Top, and New Castle 1244 PM EST Sun Feb 1 2026 ...COLD WEATHER ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO 9 AM EST MONDAY... ...EXTREME COLD WARNING WILL EXPIRE AT 1 PM EST THIS AFTERNOON... * WHAT...Very cold wind chills as low as 10 below expected. * WHERE...Portions of southwest and west central Virginia and southeast West Virginia. * WHEN...From 6 PM this evening to 9 AM EST Monday. * IMPACTS...The cold wind chills as low as 10 below zero could result in hypothermia if precautions are not taken. PRECAUTIONARY/PREPAREDNESS ACTIONS... Dress in layers including a hat, face mask, and gloves if you must go outside. Keep pets indoors as much as possible. If you do not have heat in your home or lack shelter, you can call 211 for assistance locating appropriate shelter from the cold. && $$ WVZ507-508-020145- /O.EXP.KRNK.EC.W.0003.000000T0000Z-260201T1800Z/ /O.CON.KRNK.CW.Y.0007.260201T2100Z-260202T1600Z/ Eastern Greenbrier-Western Greenbrier- Including the cities of White Sulphur Springs, Duo, Quinwood, Rainelle, Alderson, and Lewisburg 1244 PM EST Sun Feb 1 2026 ...COLD WEATHER ADVISORY REMAINS IN EFFECT FROM 4 PM THIS AFTERNOON TO 11 AM EST MONDAY... ...EXTREME COLD WARNING WILL EXPIRE AT 1 PM EST THIS AFTERNOON... * WHAT...Very cold wind chills as low as 13 below expected. * WHERE...Eastern Greenbrier and Western Greenbrier Counties. * WHEN...From 4 PM this afternoon to 11 AM EST Monday. * IMPACTS...The cold wind chills as low as 13 below zero could result in hypothermia if precautions are not taken. PRECAUTIONARY/PREPAREDNESS ACTIONS... Dress in layers including a hat, face mask, and gloves if you must go outside. Keep pets indoors as much as possible. If you do not have heat in your home or lack shelter, you can call 211 for assistance locating appropriate shelter from the cold. && $$ NCZ003-019-020-VAZ023-024-032>035-011845- /O.EXP.KRNK.EC.W.0003.000000T0000Z-260201T1800Z/ Surry-Wilkes-Yadkin-Botetourt-Rockbridge-Patrick-Franklin-Bedford- Amherst- Including the cities of Wilkesboro, Bedford, Stuart, Yadkinville, Lexington, Dobson, Buena Vista, Amherst, Rocky Mount, and Fincastle 1244 PM EST Sun Feb 1 2026 ...EXTREME COLD WARNING WILL EXPIRE AT 1 PM EST THIS AFTERNOON... $$ BMG
What forecasters said that day
The local office's own words before this wind advisory 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 wind advisory went out at Jan 31, 6:40 AM EST, 4 hours 56 minutes earlier. Its key messages:
- 1) A Winter Storm continues across the lower Mid-Atlantic this morning, with additional accumulating snow through tonight. 2) Blowing and drifting snow associated with strong winds and extreme cold is forecasted for late tonight into Sunday. 3) Another opportunity for wintry precipitation midweek. Temperatures remain below normal.
Area forecast discussion, Jan 31, 6:40 AM EST, 4 hours 56 minutes before
Area Forecast Discussion
National Weather Service Blacksburg VA
640 AM EST Sat Jan 31 2026
.WHAT HAS CHANGED...
The Extreme Cold Warning has been expanded eastward to include
the foothills of the Blue Ridge, while a Cold Weather Advisory
has been issued for the Piedmont.
Modest decreases were made to snowfall totals through the
remainder of the storm, though they remain similar to what was
previously forecasted.
The gradient of where heavy snow will occur vs where it will
remain light remains tight, as latest forecast data indicates
the potential for a few bands of localized heavier totals across
the Piedmont near where drier air is trying to invade.
&&
.KEY MESSAGES...
1) A Winter Storm continues across the lower Mid-Atlantic this
morning, with additional accumulating snow through tonight.
2) Blowing and drifting snow associated with strong winds and
extreme cold is forecasted for late tonight into Sunday.
3) Another opportunity for wintry precipitation midweek.
Temperatures remain below normal.
&&
.DISCUSSION...
KEY MESSAGE 1...A Winter Storm continues across the lower Mid-
Atlantic this morning, with additional accumulating snow through
tonight.
A closed upper level low pressure system continues to approach
the central Appalachians this morning as a surface low pressure
system continues to develop off the SC/GA coast. Currently, the
upper level system is supporting the light to moderate snow
falling across the lower Mid-Atlantic, with the more pronounced
activity occurring south of Highway 460. However, still
expecting snowfall rates to increase later this morning into
early afternoon as the coastal low deepens, adding both
increased Atlantic moisture to fuel the snowfall, and extra
convergence to enhance snowfall rates.
That stated, it appears the axis of heaviest snowfall has
shifted slightly further south yet again in the latest round of
weather data as the upper low is forecasted to dive as far south
as the Atlanta GA area, taking its energy with it. As such,
additional snowfall totals have again been nudged downward
across the Piedmont, though they remain in Winter Storm Warning
criteria across the mountains and along the Highway 58 corridor.
A tight gradient in snowfall totals remains in the forecast
just to the north given the dry air from New England being
carried into the area to fight the moisture currently in place.
Through the duration of the storm, the following forecast
philosophy still applies: the heaviest of the snow this morning
is forecasted to occur between Bluefield and Mount Rogers, and
into the North Carolina High Country along the TN border...with
additional amounts 3 to locally 6 inches there. Some of this
activity continues to pass east across the foothills and the
Piedmont, with totals in the 1-3 inch range through late morning.
As the coastal low strengthens during late morning into early
afternoon, this will cause bands of enhanced snowfall to develop
over the Piedmont, potentially adding another 1-3 inches to
areas east of the Blue Ridge. Keep in mind that, given these
bands are fighting the dry air incoming from the northeast,
believe the higher totals will be more localized to 20-30 mile
wide swathes intermixed with lower totals, as opposed to
larger, more spatially uniform accumulations. Still seeing
signals in the latest data of downslope northerly wind flow off
the Blue Ridge escarpment in NC cause lower totals over Wilkes
and Surry counties.
Any snow that falls will be a dry, fluffy, push broom-able snow
with snow ratios of 15:1 to 20:1. You should not have to do as
much heavy lifting like we did with last weekend's storm.
The snow is forecasted to taper off from west to east beginning
during early evening through shortly after midnight, with then
only upslope snow showers lingering across southeast West
Virginia through Sunday afternoon.
KEY MESSAGE 2...Blowing and drifting snow associated with
strong winds and extreme cold is forecasted for late tonight
into Sunday.
Despite the departure of the storm early tonight, conditions
will remain hazardous due to increasing wind speeds. As low
pressure deepens along the coast, wind speeds from the northwest
will increase areawide late tonight into Sunday, with gusts
ranging from 40 mph in the Piedmont to potentially as much as 60
mph across the mountain ridges, including along the crest of
the Blue Ridge south of Roanoke. Given the powdery nature of
today's snow, this is likely to be lofted by the wind...making
for high potential of drifting and roads being inundated from
wind swept snow, as well as localized whiteout conditions. Will
consider the possibility of a Wind Advisory as new data comes
in later today.
In addition, low temperatures are expected to plummet into the
single digits by Sunday morning, and wind chill values will fall
towards 0 to -10 degrees across the Piedmont, and from -10 to
-20 degrees from the foothills of the Blue Ridge westward. As
such, an Extreme Cold Warning has been issued for the mountains
and foothills through early afternoon Sunday, while a Cold
Weather Advisory has been issued for the Piedmont.
KEY MESSAGE 3...Another opportunity for wintry precipitation
midweek. Temperatures remain below normal.
Broad 500mb troughing remains over the eastern US into the
beginning of the work week, becoming briefly zonal Tuesday,
before the trough amplifies again by midweek, as another wave
dips into the south central US. This upper level pattern will
allow for the cool, northwest to westerly flow to persist over
the area, keeping temperatures below normal Monday. Flow turns
southwesterly Tuesday and Wednesday, as high pressure builds
into the area from the south. This will lead to a warm up in
temperatures, near to just below seasonal norms across the area,
and the Piedmont and VA Southside could reach the mid 40s
during that time. Overnight lows look to still fall below
freezing through the week, and the daytime melting and overnight
refreeze of snow/ice cycle will continue through the week.
As the shortwave rounds the base of the trough, the surface low
tracks eastward by Wednesday, and moisture will start to surge
northward into the area. Although this surface pattern isn't a
true overrunning type of scenario, with the high pressure and a
slightly warmer airmass in place, precipitation type remains
uncertain at this time. The track of the surface low and surface
temperatures will determine what the dominant p-type will be.
Some models keep this low going to the south of the area, which
favors more snow for the region; others have it crossing the
area, which would mean more of a mix of p-types. Given the
current uncertainty, and with coordination with neighboring
offices, have a rain/snow mix in the forecast for this time
frame.
&&
.AVIATION /12Z SATURDAY THROUGH WEDNESDAY/...
Radar indicates light to moderate snow falling across the lower
Mid-Atlantic this morning, which is forecast to persist through
00Z this evening for most airports along and south of a KBLF to
KROA to KLYH line. This will impact most airports with variable
visibilities at times as low as 1/2SM as snow intensity
increases and decreases. Along and north of this line, ceilings
will vary between MVFR and VFR as drier air builds in from the
northeast, and will be increasingly IFR in coverage southward
toward the NC/VA state border, where the higher intensity
snowfall will be located.
Snowfall will decrease from north to south between 00Z and 06Z
Sunday as supporting low pressure passes overhead.
Gusty northwest winds will increase tonight behind the
low pressure system, with gusts in the higher elevations in the
30 to 40kt range at times. Widespread gusts in excess of 20kts
will be likely through the end of the valid 24 hour TAF period.
EXTENDED AVIATION OUTLOOK...
Low pressure will rapidly intensify off the Atlantic coast
during early Sunday, creating strong northwest winds into
Sunday night. This will result in blowing snow, which can
significantly reduce visibilities from time to time. High
pressure will begin to build in by Monday morning, allowing the
tight pressure gradient to relax and winds to finally subside. A
much quieter weather pattern will then take hold, with dry
conditions and clear skies expected through Tuesday.
&&
.RNK WATCHES/WARNINGS/ADVISORIES...
VA...Winter Storm Warning until 1 PM EST Sunday for VAZ007-009>017.
Extreme Cold Warning from 1 PM this afternoon to 1 PM EST
Sunday for VAZ007-009>020-022>024-032>035.
Winter Storm Warning until 7 AM EST Sunday for VAZ032-033-043-
044-058-059.
Cold Weather Advisory from 7 PM this evening to 10 AM EST
Sunday for VAZ043>047-058-059.
Winter Weather Advisory until 1 PM EST Sunday for VAZ018.
Winter Weather Advisory until 7 AM EST Sunday for VAZ022-023-
034-035-045>047.
NC...Winter Storm Warning until 1 PM EST Sunday for NCZ001-002-018.
Extreme Cold Warning from 1 PM this afternoon to 1 PM EST
Sunday for NCZ001>003-018>020.
Winter Storm Warning until 7 AM EST Sunday for NCZ003>006-019-
020.
Cold Weather Advisory from 7 PM this evening to 10 AM EST
Sunday for NCZ004>006.
WV...Winter Storm Warning until 1 PM EST Sunday for WVZ042.
Extreme Cold Warning from 1 PM this afternoon to 1 PM EST
Sunday for WVZ042>044-507-508.
Winter Weather Advisory until 1 PM EST Sunday for WVZ043-044.
&&
DISCUSSION...AS/NF/PM
AVIATION...BMG/NFHazardous weather outlook, Jan 31, 3:43 AM EST, 7 hours 53 minutes before
Hazardous Weather Outlook National Weather Service Blacksburg VA 343 AM EST Sat Jan 31 2026 NCZ003-019-020-VAZ032-033-010845- Surry-Wilkes-Yadkin-Patrick-Franklin- 343 AM EST Sat Jan 31 2026 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 AM EST SUNDAY... ...EXTREME COLD WARNING REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON TO 1 PM EST SUNDAY... This Hazardous Weather Outlook is for north central North Carolina, northwest North Carolina, southwest Virginia and west central Virginia. .DAY ONE...Today and tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Winter Storm Warning. Extreme Cold Warning. .DAYS TWO THROUGH SEVEN...Sunday through Friday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Winter Storm Warning. Extreme Cold Warning. .SPOTTER INFORMATION STATEMENT... Weather spotters are requested to report accumulations of any snow, sleet and ice, as well as any damage observed in their area. NCZ001-002-018-VAZ007-009>017-WVZ042-010845- Ashe-Alleghany NC-Watauga-Tazewell-Smyth-Bland-Giles-Wythe-Pulaski- Montgomery-Grayson-Carroll-Floyd-Mercer- 343 AM EST Sat Jan 31 2026 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 1 PM EST SUNDAY... ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 1 PM EST SUNDAY... ...EXTREME COLD WARNING REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON TO 1 PM EST SUNDAY... This Hazardous Weather Outlook is for northwest North Carolina, southwest Virginia and southeast West Virginia. .DAY ONE...Today and tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Winter Storm Warning. Extreme Cold Warning. .DAYS TWO THROUGH SEVEN...Sunday through Friday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Winter Storm Warning. Extreme Cold Warning. .SPOTTER INFORMATION STATEMENT... Weather spotters are requested to report accumulations of any snow, sleet and ice, as well as any damage observed in their area. VAZ018-WVZ043-044-010845- Craig-Summers-Monroe- 343 AM EST Sat Jan 31 2026 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 1 PM EST SUNDAY... ...EXTREME COLD WARNING REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON TO 1 PM EST SUNDAY... This Hazardous Weather Outlook is for southwest Virginia and southeast West Virginia. .DAY ONE...Today and tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Winter Weather Advisory. Extreme Cold Warning. .DAYS TWO THROUGH SEVEN...Sunday through Friday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Winter Weather Advisory. Extreme Cold Warning. .SPOTTER INFORMATION STATEMENT... Weather spotters are requested to report accumulations of any snow, sleet and ice, as well as any damage observed in their area. VAZ022-023-034-035-010845- Roanoke-Botetourt-Bedford-Amherst- 343 AM EST Sat Jan 31 2026 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST SUNDAY... ...EXTREME COLD WARNING REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON TO 1 PM EST SUNDAY... This Hazardous Weather Outlook is for central Virginia, south central Virginia and west central Virginia. .DAY ONE...Today and tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Winter Weather Advisory. Extreme Cold Warning. .DAYS TWO THROUGH SEVEN...Sunday through Friday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Winter Weather Advisory. Extreme Cold Warning. .SPOTTER INFORMATION STATEMENT... Weather spotters are requested to report accumulations of any snow, sleet and ice, as well as any damage observed in their area. VAZ019-020-024-WVZ507-508-010845- Alleghany VA-Bath-Rockbridge-Eastern Greenbrier-Western Greenbrier- 343 AM EST Sat Jan 31 2026 ...EXTREME COLD WARNING REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON TO 1 PM EST SUNDAY... This Hazardous Weather Outlook is for west central Virginia and southeast West Virginia. .DAY ONE...Today and tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Extreme Cold Warning. .DAYS TWO THROUGH SEVEN...Sunday through Friday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Extreme Cold Warning. .SPOTTER INFORMATION STATEMENT... Weather spotters are requested to report accumulations of any snow, sleet and ice, as well as any damage observed in their area. NCZ004>006-VAZ043-044-058-059-010845- Stokes-Rockingham-Caswell-Henry-Pittsylvania-Halifax-Charlotte- 343 AM EST Sat Jan 31 2026 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 AM EST SUNDAY... ...COLD WEATHER ADVISORY IN EFFECT FROM 7 PM THIS EVENING TO 10 AM EST SUNDAY... This Hazardous Weather Outlook is for north central North Carolina and south central Virginia. .DAY ONE...Today and tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Winter Storm Warning. Cold Weather Advisory. .DAYS TWO THROUGH SEVEN...Sunday through Friday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Winter Storm Warning. Cold Weather Advisory. .SPOTTER INFORMATION STATEMENT... Weather spotters are requested to report accumulations of any snow, sleet and ice, as well as any damage observed in their area. VAZ045>047-010845- Campbell-Appomattox-Buckingham- 343 AM EST Sat Jan 31 2026 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST SUNDAY... ...COLD WEATHER ADVISORY IN EFFECT FROM 7 PM THIS EVENING TO 10 AM EST SUNDAY... This Hazardous Weather Outlook is for central Virginia. .DAY ONE...Today and tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Winter Weather Advisory. Cold Weather Advisory. .DAYS TWO THROUGH SEVEN...Sunday through Friday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Winter Weather Advisory. Cold Weather Advisory. .SPOTTER INFORMATION STATEMENT... Weather spotters are requested to report accumulations of any snow, sleet and ice, as well as any damage observed in their area.
In the hours before
Local storm report, Jan 31, 10:49 AM EST, 47 minutes before
Preliminary Local Storm Report
National Weather Service Blacksburg VA
1049 AM EST Sat Jan 31 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0700 AM Snow 1 ESE Richlands 37.09N 81.79W
01/31/2026 M3.2 Inch Tazewell VA CO-OP Observer
&&
JCBLocal storm report, Jan 31, 10:50 AM EST, 46 minutes before
Preliminary Local Storm Report
National Weather Service Blacksburg VA
1050 AM EST Sat Jan 31 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0700 AM Snow 2 SSW Rocky Mount 36.98N 79.90W
01/31/2026 M2.1 Inch Franklin VA CO-OP Observer
&&
JCBLocal storm report, Jan 31, 10:51 AM EST, 45 minutes before
Preliminary Local Storm Report
National Weather Service Blacksburg VA
1051 AM EST Sat Jan 31 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0700 AM Snow Saltville 36.88N 81.76W
01/31/2026 M4.0 Inch Smyth VA CO-OP Observer
&&
JCBLocal storm report, Jan 31, 10:53 AM EST, 43 minutes before
Preliminary Local Storm Report
National Weather Service Blacksburg VA
1053 AM EST Sat Jan 31 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0700 AM Snow 2 ENE Whitetop 36.61N 81.58W
01/31/2026 M4.8 Inch Grayson VA CO-OP Observer
&&
JCBLocal storm report, Jan 31, 10:54 AM EST, 42 minutes before
Preliminary Local Storm Report
National Weather Service Blacksburg VA
1054 AM EST Sat Jan 31 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0700 AM Snow 1 SE Wytheville 36.94N 81.06W
01/31/2026 M3.5 Inch Wythe VA CO-OP Observer
&&
JCBLocal storm report, Jan 31, 10:58 AM EST, 38 minutes before
Preliminary Local Storm Report
National Weather Service Blacksburg VA
1058 AM EST Sat Jan 31 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1015 AM Snow 4 ENE Bedford 37.35N 79.46W
01/31/2026 M0.5 Inch Bedford VA Trained Spotter
&&
JCBThe office that day
Everything else NWS Blacksburg, VA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 31, 2:12 AM EST | Cold Weather Advisory | RNK | Caswell, Rockingham, Stokes | 32 hr |
Nearby
Wind Advisories in Virginia, 2026Wind Advisories in North Carolina, 2026Every wind advisory in 2026
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.