Alert archive / North Carolina / Winter Storm Warnings in 2021
Winter Storm Warning 1, NWS Raleigh, NC
NWS Raleigh, NC issued this winter storm warning at Jan 7, 2021, 3:36 PM EST for 4 counties in North Carolina. It took effect at Jan 8, 2021, 1:00 AM EST. It was in force for 15 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jan 7, 2021, 3:36 PM EST (20:36 UTC)
- In effect from
- Jan 8, 2021, 1:00 AM EST
- Expired
- Jan 8, 2021, 3:45 PM EST
- In force
- 15 hr
- Issued by
- NWS Raleigh, NC
Counties Davidson County, NC, Forsyth County, NC, Guilford County, NC, Randolph County, NC
The radar
The Roanoke radar (KFCX), 124 km from the middle of the area, began a volume at 20:35 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, 8.6 hours before the alert went out and 20 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
- 955 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 56 m²/s²
- 0-3 km storm-relative helicity
- 77 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
796 WWUS42 KRAH 072036 WSWRAH URGENT - WINTER WEATHER MESSAGE National Weather Service Raleigh NC 336 PM EST Thu Jan 7 2021 ...Accumulating Wet Snow Likely Across the NC Piedmont Late Tonight Through Early Friday night... .An area of low pressure will strengthen while tracking up the Southeast coast through Friday night. The low pressure and associated moisture will interact with marginally cold high pressure over the middle Atlantic states. Wet snow accumulations, with surface temperatures near and just above freezing, will result. Hazardous travel conditions may result. NCZ021-022-038-081200- /O.UPG.KRAH.WS.A.0001.210108T0600Z-210109T0300Z/ /O.NEW.KRAH.WS.W.0001.210108T0600Z-210109T0600Z/ Forsyth-Guilford-Davidson- Including the cities of Winston-Salem, Greensboro, High Point, Lexington, and Thomasville 336 PM EST Thu Jan 7 2021 ...WINTER STORM WARNING IN EFFECT FROM 1 AM FRIDAY TO 1 AM EST SATURDAY... * WHAT...Snow, possibly beginning as a wintry mix, will overspread the Warning area late tonight through Friday morning, then continue through early Friday night. Total snow accumulations of 2 to 3 inches are expected, with locally higher amounts possible. * WHERE...The northwest Piedmont, including Forsyth, Guilford and Davidson Counties. * WHEN...From 1 AM Friday to 1 AM EST Saturday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact both the Friday morning and evening commutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for North Carolina can be obtained by visiting DriveNC.gov. && $$ NCZ039-081200- /O.NEW.KRAH.WS.W.0001.210108T0600Z-210109T0600Z/ Randolph- Including the cities of Asheboro and Archdale 336 PM EST Thu Jan 7 2021 ...WINTER STORM WARNING IN EFFECT FROM 1 AM FRIDAY TO 1 AM EST SATURDAY... * WHAT...Snow, possibly beginning as a wintry mix, will overspread the Warning area late tonight through Friday morning, then continue through early Friday night. Total snow accumulations of 2 to 3 inches are expected, with locally higher amounts possible. * WHERE...Randolph County. * WHEN...From 1 AM Friday to 1 AM EST Saturday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact both the Friday morning and evening commutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for North Carolina can be obtained by visiting DriveNC.gov. && $$ NCZ007>010-023>026-040-041-073>076-081200- /O.NEW.KRAH.WW.Y.0001.210108T0600Z-210109T0600Z/ Person-Granville-Vance-Warren-Alamance-Orange-Durham-Franklin- Chatham-Wake-Stanly-Montgomery-Moore-Lee- Including the cities of Roxboro, Oxford, Creedmoor, Henderson, Kittrell, Warrenton, Norlina, Burlington, Graham, Mebane, Hillsborough, Chapel Hill, Carrboro, Durham, Rougemont, Louisburg, Franklinton, Siler City, Pittsboro, Raleigh, Cary, Apex, Wake Forest, Knightdale, Albemarle, Troy, Southern Pines, Pinehurst, Aberdeen, Carthage, and Sanford 336 PM EST Thu Jan 7 2021 ...WINTER WEATHER ADVISORY IN EFFECT FROM 1 AM FRIDAY TO 1 AM EST SATURDAY... * WHAT...A wintry mix of snow, sleet, and rain will overspread the Advisory area late tonight through Friday morning, with a few hour period of all snow possible Friday morning. The precipitation will likely turn to a cold rain during the midday and afternoon hours, before changing back to snow Friday evening and early Friday night. Total snow accumulations of 1 to 2 inches are expected, with lesser amounts --generally a coating to an inch-- along the southeast edge of the Advisory area. * WHERE...The Piedmont and western Sandhills of central North Carolina. * WHEN...From 1 AM Friday to 1 AM EST Saturday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact both the Friday morning and evening commutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for North Carolina can be obtained by visiting DriveNC.gov. && $$
4 follow-up statements
368 WWUS42 KRAH 080623 WSWRAH URGENT - WINTER WEATHER MESSAGE National Weather Service Raleigh NC 123 AM EST Fri Jan 8 2021 ...Accumulating Wet Snow Likely Across the NC Piedmont Through Early Tonight... .An area of low pressure will move up the Southeast coast and strengthen through tonight. The low pressure and associated moisture will interact with marginally cold high pressure over the middle Atlantic states. Wet snow accumulations, with surface temperatures near and just above freezing, will result. Hazardous travel conditions are possible. NCZ021-022-038-039-081430- /O.CON.KRAH.WS.W.0001.000000T0000Z-210109T0600Z/ Forsyth-Guilford-Davidson-Randolph- Including the cities of Winston-Salem, Greensboro, High Point, Lexington, Thomasville, Asheboro, and Archdale 123 AM EST Fri Jan 8 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 1 AM EST SATURDAY... * WHAT...Snow, possibly beginning as a wintry mix, will overspread the Warning area early this morning, then continue through early tonight. Total snow accumulations of 2 to 3 inches are expected, with locally higher amounts possible. * WHERE...The northwest Piedmont, including Forsyth, Guilford and Davidson Counties. * WHEN...Through 1 AM EST Saturday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact both the morning and evening commutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for North Carolina can be obtained by visiting DriveNC.gov. && $$ NCZ007>010-023>026-040-041-073>076-081430- /O.CON.KRAH.WW.Y.0001.000000T0000Z-210109T0600Z/ Person-Granville-Vance-Warren-Alamance-Orange-Durham-Franklin- Chatham-Wake-Stanly-Montgomery-Moore-Lee- Including the cities of Roxboro, Oxford, Creedmoor, Henderson, Kittrell, Warrenton, Norlina, Burlington, Graham, Mebane, Hillsborough, Chapel Hill, Carrboro, Durham, Rougemont, Louisburg, Franklinton, Siler City, Pittsboro, Raleigh, Cary, Apex, Wake Forest, Knightdale, Albemarle, Troy, Southern Pines, Pinehurst, Aberdeen, Carthage, and Sanford 123 AM EST Fri Jan 8 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 1 AM EST SATURDAY... * WHAT...A wintry mix of snow, sleet, and rain will overspread the Advisory area early this morning, with a few hour period of all snow possible. The precipitation will likely turn to a cold rain during the midday and afternoon hours, before changing back to snow in the evening and early overnight hours. Total snow accumulations of 1 to 2 inches are expected, with lesser amounts generally -a coating to an inch- -along the southeast edge of the Advisory area. * WHERE...The Piedmont and western Sandhills of central North Carolina. * WHEN...Through 1 AM EST Saturday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact both the Friday morning and evening commutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for North Carolina can be obtained by visiting DriveNC.gov. && $$
077 WWUS42 KRAH 080929 WSWRAH URGENT - WINTER WEATHER MESSAGE National Weather Service Raleigh NC 429 AM EST Fri Jan 8 2021 ...Accumulating Wet Snow Likely Across the NC Piedmont Through Early Tonight... .An area of low pressure off the Southeast coast will strengthen as it moves northeast, remaining off the NC coast through tonight. The low pressure and associated moisture will interact with marginally cold high pressure over the middle Atlantic states. Wet snow accumulations, with surface temperatures near and just above freezing, will result. Hazardous travel conditions are possible. NCZ021-022-038-039-082130- /O.CON.KRAH.WS.W.0001.000000T0000Z-210109T0600Z/ Forsyth-Guilford-Davidson-Randolph- Including the cities of Winston-Salem, Greensboro, High Point, Lexington, Thomasville, Asheboro, and Archdale 429 AM EST Fri Jan 8 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 1 AM EST SATURDAY... * WHAT...Snow will overspread the Warning area this morning, then continue through early tonight. Total snow accumulations of 2 to 3 inches are expected, with locally higher amounts possible. * WHERE...The northwest Piedmont, including the Triad. * WHEN...Through 1 AM EST Saturday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact both the morning and evening commutes. * ADDITIONAL DETAILS...Temperatures in the upper 20s Saturday morning could result in a continuation of slick and icy road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for North Carolina can be obtained by visiting DriveNC.gov. && $$ NCZ007>010-023>026-040-041-073>076-082130- /O.CON.KRAH.WW.Y.0001.000000T0000Z-210109T0600Z/ Person-Granville-Vance-Warren-Alamance-Orange-Durham-Franklin- Chatham-Wake-Stanly-Montgomery-Moore-Lee- Including the cities of Roxboro, Oxford, Creedmoor, Henderson, Kittrell, Warrenton, Norlina, Burlington, Graham, Mebane, Hillsborough, Chapel Hill, Carrboro, Durham, Rougemont, Louisburg, Franklinton, Siler City, Pittsboro, Raleigh, Cary, Apex, Wake Forest, Knightdale, Albemarle, Troy, Southern Pines, Pinehurst, Aberdeen, Carthage, and Sanford 429 AM EST Fri Jan 8 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 1 AM EST SATURDAY... * WHAT...A wintry mix of snow, sleet, and rain will overspread the Advisory area early this morning. The precipitation will likely turn to a cold rain during the midday and afternoon hours, before changing back to snow in the evening and early overnight hours. Total snow accumulations of 1 to 2 inches are expected, highest across the north. * WHERE...The Piedmont of central North Carolina, including the Triangle. * WHEN...Through 1 AM EST Saturday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact both the Friday morning and evening commutes. * ADDITIONAL DETAILS...Near freezing temperatures Saturday morning could result in a continuation of slick and icy road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for North Carolina can be obtained by visiting DriveNC.gov. && $$
908 WWUS42 KRAH 081707 WSWRAH URGENT - WINTER WEATHER MESSAGE National Weather Service Raleigh NC 1207 PM EST Fri Jan 8 2021 ...Accumulating Wet Snow Likely Across the NC Piedmont Through Early Tonight... .An area of low pressure off the Southeast coast will strengthen as it moves northeast, remaining off the NC coast through tonight. The low pressure and associated moisture will interact with marginally cold high pressure over the middle Atlantic states. Wet snow accumulations, with surface temperatures near and just above freezing, will result. Hazardous travel conditions are possible. NCZ021-022-038-039-090600- /O.CON.KRAH.WS.W.0001.000000T0000Z-210109T0600Z/ Forsyth-Guilford-Davidson-Randolph- Including the cities of Winston-Salem, Greensboro, High Point, Lexington, Thomasville, Asheboro, and Archdale 1207 PM EST Fri Jan 8 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 1 AM EST SATURDAY... * WHAT...Periods of rain and snow today will change to all snow late this afternoon and evening. Associated snow accumulation of one to two inches will result, especially after dark. * WHERE...Davidson, Randolph, Guilford and Forsyth Counties. * WHEN...Until 1 AM EST Saturday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the evening commute. * ADDITIONAL DETAILS...Temperatures in the upper 20s Saturday morning could result in a continuation of slick and icy road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for North Carolina can be obtained by visiting DriveNC.gov. && $$ NCZ007>010-023>026-040-041-073>076-090600- /O.CON.KRAH.WW.Y.0001.000000T0000Z-210109T0600Z/ Person-Granville-Vance-Warren-Alamance-Orange-Durham-Franklin- Chatham-Wake-Stanly-Montgomery-Moore-Lee- Including the cities of Roxboro, Oxford, Creedmoor, Henderson, Kittrell, Warrenton, Norlina, Burlington, Graham, Mebane, Hillsborough, Chapel Hill, Carrboro, Durham, Rougemont, Louisburg, Franklinton, Siler City, Pittsboro, Raleigh, Cary, Apex, Wake Forest, Knightdale, Albemarle, Troy, Southern Pines, Pinehurst, Aberdeen, Carthage, and Sanford 1207 PM EST Fri Jan 8 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 1 AM EST SATURDAY... * WHAT...Rain today will begin to mix with and then change to snow this evening. Snow accumulations of a coating to around one inch are expected to result. * WHERE...Portions of central North Carolina. * WHEN...Until 1 AM EST Saturday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the evening commute. * ADDITIONAL DETAILS...Near freezing temperatures Saturday morning could result in a continuation of slick and icy road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for North Carolina can be obtained by visiting DriveNC.gov. && $$
267 WWUS42 KRAH 082045 WSWRAH URGENT - WINTER WEATHER MESSAGE National Weather Service Raleigh NC 345 PM EST Fri Jan 8 2021 ...Accumulating Wet Snow Likely Across the NC Piedmont Through Early Tonight... .An area of low pressure will strengthen as it moves northeast along the NC coast through tonight. The low pressure and associated moisture will interact with marginally cold high pressure over the middle Atlantic states. Wet snow accumulations, with surface temperatures near and just above freezing, will result. Hazardous travel conditions are possible. NCZ021-022-038-039-090600- /O.CAN.KRAH.WS.W.0001.000000T0000Z-210109T0600Z/ /O.EXA.KRAH.WW.Y.0001.000000T0000Z-210109T0600Z/ Forsyth-Guilford-Davidson-Randolph- Including the cities of Winston-Salem, Greensboro, High Point, Lexington, Thomasville, Asheboro, and Archdale 345 PM EST Fri Jan 8 2021 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 1 AM EST SATURDAY... ...WINTER STORM WARNING IS CANCELLED... * WHAT...Rain will mix with and change to snow from west to east through this evening. Snow accumulations around one inch are expected. * WHERE...Forsyth, Guilford, Davidson and Randolph Counties. * WHEN...Until 1 AM EST Saturday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the evening commute. * ADDITIONAL DETAILS...Temperatures in the upper 20s Saturday morning could result in a continuation of slick and icy road conditions, particularly on bridges and overpasses. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for North Carolina can be obtained by visiting DriveNC.gov. && $$ NCZ007>010-023>026-040-041-073>076-090600- /O.CON.KRAH.WW.Y.0001.000000T0000Z-210109T0600Z/ Person-Granville-Vance-Warren-Alamance-Orange-Durham-Franklin- Chatham-Wake-Stanly-Montgomery-Moore-Lee- Including the cities of Roxboro, Oxford, Creedmoor, Henderson, Kittrell, Warrenton, Norlina, Burlington, Graham, Mebane, Hillsborough, Chapel Hill, Carrboro, Durham, Rougemont, Louisburg, Franklinton, Siler City, Pittsboro, Raleigh, Cary, Apex, Wake Forest, Knightdale, Albemarle, Troy, Southern Pines, Pinehurst, Aberdeen, Carthage, and Sanford 345 PM EST Fri Jan 8 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 1 AM EST SATURDAY... * WHAT...Rain this afternoon will begin to mix with and then change to snow this evening. Snow accumulations of a coating to locally around one inch are expected to result. * WHERE...Portions of central North Carolina. * WHEN...Until 1 AM EST Saturday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the evening commute. * ADDITIONAL DETAILS...Near freezing temperatures Saturday morning could result in a continuation of slick and icy road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for North Carolina can be obtained by visiting DriveNC.gov. && $$
The office that day
Everything else NWS Raleigh, NC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 7, 3:36 PM EST | Winter Weather Advisory | RAH | Alamance, Chatham, Davidson, Durham, Forsyth, Franklin and 12 more | 30 hr |
Nearby
Winter Storm Warnings in North Carolina, 2021Every winter storm warning in 2021
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.