Alert archive / North Carolina / Winter Storm Watches in 2021
Winter Storm Watch 2, NWS Raleigh, NC
NWS Raleigh, NC issued this winter storm watch at Feb 16, 2021, 3:57 AM EST for 9 counties in North Carolina. It took effect at Feb 18, 2021, 12:00 AM EST. It was in force for .
The area
The counties it named.
The facts
- Issued
- Feb 16, 2021, 3:57 AM EST (08:57 UTC)
- In effect from
- Feb 18, 2021, 12:00 AM EST
- Expired
- Feb 17, 2021, 3:13 AM EST
- In force
- Issued by
- NWS Raleigh, NC
Counties Alamance County, NC, Durham County, NC, Forsyth County, NC, Granville County, NC, Guilford County, NC, Orange County, NC, Person County, NC, Vance County, NC, Warren County, NC
The radar
The Raleigh/Durham radar (KRAX), 79 km from the middle of the area, began a volume at 08:59 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, 9.0 hours before the alert went out and 76 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
- 13 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 403 m above ground
- 0-6 km bulk shear
- 78 kt
- 0-1 km storm-relative helicity
- 592 m²/s²
- 0-3 km storm-relative helicity
- 770 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
511 WWUS42 KRAH 160857 WSWRAH URGENT - WINTER WEATHER MESSAGE National Weather Service Raleigh NC 357 AM EST Tue Feb 16 2021 NCZ007-021-022-162100- /O.NEW.KRAH.WS.A.0002.210218T0500Z-210219T0500Z/ Person-Forsyth-Guilford- Including the cities of Roxboro, Winston-Salem, Greensboro, and High Point 357 AM EST Tue Feb 16 2021 ...WINTER STORM WATCH IN EFFECT FROM LATE WEDNESDAY NIGHT THROUGH THURSDAY EVENING... * WHAT...Significant icing possible. Total ice accumulations of at least one quarter of an inch possible. * WHERE...Person, Forsyth and Guilford Counties. * WHEN...From late Wednesday night through Thursday evening. * IMPACTS...Power outages and tree damage are likely due to the ice. Travel could be nearly impossible. The hazardous conditions could impact the morning or evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts for updates on this situation. && $$
3 follow-up statements
232 WWUS42 KRAH 161546 WSWRAH URGENT - WINTER WEATHER MESSAGE National Weather Service Raleigh NC 1046 AM EST Tue Feb 16 2021 NCZ008>010-023>025-170400- /O.EXA.KRAH.WS.A.0002.210218T0500Z-210219T0500Z/ Granville-Vance-Warren-Alamance-Orange-Durham- Including the cities of Oxford, Creedmoor, Henderson, Kittrell, Warrenton, Norlina, Burlington, Graham, Mebane, Hillsborough, Chapel Hill, Carrboro, Durham, and Rougemont 1046 AM EST Tue Feb 16 2021 ...WINTER STORM WATCH IN EFFECT FROM LATE WEDNESDAY NIGHT THROUGH THURSDAY EVENING... * WHAT...Significant icing possible. Total ice accumulations of one tenth to two tenths of an inch possible. * WHERE...Portions of central North Carolina. * WHEN...From late Wednesday night through Thursday evening. * IMPACTS...Power outages and tree damage are likely due to the ice. Travel could be nearly impossible. The hazardous conditions could impact the morning or evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts for updates on this situation. && $$ NCZ007-021-022-170400- /O.CON.KRAH.WS.A.0002.210218T0500Z-210219T0500Z/ Person-Forsyth-Guilford- Including the cities of Roxboro, Winston-Salem, Greensboro, and High Point 1046 AM EST Tue Feb 16 2021 ...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE WEDNESDAY NIGHT THROUGH THURSDAY EVENING... * WHAT...Significant icing possible. Total ice accumulations of at least one quarter of an inch possible. * WHERE...Person, Forsyth and Guilford Counties. * WHEN...From late Wednesday night through Thursday evening. * IMPACTS...Power outages and tree damage are likely due to the ice. Travel could be nearly impossible. The hazardous conditions could impact the morning or evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts for updates on this situation. && $$
651 WWUS42 KRAH 170331 WSWRAH URGENT - WINTER WEATHER MESSAGE National Weather Service Raleigh NC 1031 PM EST Tue Feb 16 2021 NCZ007>010-021>025-171145- /O.CON.KRAH.WS.A.0002.210218T0500Z-210219T0500Z/ Person-Granville-Vance-Warren-Forsyth-Guilford-Alamance-Orange- Durham- Including the cities of Roxboro, Oxford, Creedmoor, Henderson, Kittrell, Warrenton, Norlina, Winston-Salem, Greensboro, High Point, Burlington, Graham, Mebane, Hillsborough, Chapel Hill, Carrboro, Durham, and Rougemont 1031 PM EST Tue Feb 16 2021 ...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE WEDNESDAY NIGHT THROUGH THURSDAY EVENING... * WHAT...Significant icing possible. Total ice accumulations of two tenth to three tenths of an inch possible. * WHERE...Portions of central North Carolina. * WHEN...From late Wednesday night through Thursday evening. * IMPACTS...Power outages and tree damage are likely due to the ice. Travel could be nearly impossible. The hazardous conditions could impact the morning or evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts for updates on this situation. && $$
664 WWUS42 KRAH 170813 WSWRAH URGENT - WINTER WEATHER MESSAGE National Weather Service Raleigh NC 313 AM EST Wed Feb 17 2021 NCZ007>010-021>025-171700- /O.UPG.KRAH.WS.A.0002.210218T0500Z-210219T0500Z/ /O.NEW.KRAH.WS.W.0004.210218T0500Z-210219T1200Z/ Person-Granville-Vance-Warren-Forsyth-Guilford-Alamance-Orange- Durham- Including the cities of Roxboro, Oxford, Creedmoor, Henderson, Kittrell, Warrenton, Norlina, Winston-Salem, Greensboro, High Point, Burlington, Graham, Mebane, Hillsborough, Chapel Hill, Carrboro, Durham, and Rougemont 313 AM EST Wed Feb 17 2021 ...WINTER STORM WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 7 AM EST FRIDAY... * WHAT...Significant icing expected. Total ice accumulations of one quarter to one half inch, with locally higher accumulations. * WHERE...Portions of central North Carolina. * WHEN...From midnight tonight to 7 AM EST Friday. * IMPACTS...Power outages and tree damage are likely due to the ice. Travel could be nearly impossible. The hazardous conditions could impact morning and evening commutes. * ADDITIONAL DETAILS...Some sleet could initially mix in with rain and freezing rain north of Interstate 85 tonight after midnight, but should come to an end by Thursday morning. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. Prepare for possible power outages. The latest road conditions for North Carolina can be obtained by visiting DriveNC.gov. && $$ NCZ038-039-171700- /O.NEW.KRAH.WS.W.0004.210218T0500Z-210219T1200Z/ Davidson-Randolph- Including the cities of Lexington, Thomasville, Asheboro, and Archdale 313 AM EST Wed Feb 17 2021 ...WINTER STORM WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 7 AM EST FRIDAY... * WHAT...Significant icing expected. Total ice accumulations of one quarter to one half inch. * WHERE...Davidson and Randolph Counties. * WHEN...From midnight tonight to 7 AM EST Friday. * IMPACTS...Power outages and tree damage are likely due to the ice. Travel could be nearly impossible. The hazardous conditions could impact morning and evening commutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. Prepare for possible power outages. The latest road conditions for North Carolina can be obtained by visiting DriveNC.gov. && $$ NCZ011-026-027-040-041-073>076-171700- /O.NEW.KRAH.WW.Y.0006.210218T0500Z-210219T1200Z/ Halifax-Franklin-Nash-Chatham-Wake-Stanly-Montgomery-Moore-Lee- Including the cities of Roanoke Rapids, Enfield, Scotland Neck, Louisburg, Franklinton, Nashville, Spring Hope, Rocky Mount, Siler City, Pittsboro, Raleigh, Cary, Apex, Wake Forest, Knightdale, Albemarle, Troy, Southern Pines, Pinehurst, Aberdeen, Carthage, and Sanford 313 AM EST Wed Feb 17 2021 ...WINTER WEATHER ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 7 AM EST FRIDAY... * WHAT...Freezing rain expected. Total ice accumulations of around one tenth of an inch. * WHERE...Portions of central North Carolina. * WHEN...From midnight tonight to 7 AM EST Friday. * IMPACTS...Hazardous travel conditions are possible, mainly on bridges and overpasses. The hazardous conditions could impact the morning or evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. Prepare for possible power outages. 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 |
|---|---|---|---|---|
| Feb 15, 8:02 PM EST | River Flood Warning | RAH | Halifax, Northampton | 21 days |
| Feb 15, 8:02 PM EST | River Flood Warning | RAH | Halifax, Northampton | 19 days |
| Feb 15, 10:40 PM EST | Special Weather Statement | RAH | Hoke, Scotland | 50 min |
| Feb 15, 11:33 PM EST | Areal Flood Advisory | RAH | Durham, Edgecombe, Franklin, Granville, Halifax, Johnston and 6 more | 3 hr |
| Feb 16, 2:43 AM EST | River Flood Warning | RAH | Cumberland | 7 hr |
| Feb 16, 4:54 AM EST | River Flood Warning | RAH | Chatham | 21 hr |
| Feb 16, 12:49 PM EST | River Flood Warning | RAH | Edgecombe | 55 hr |
Nearby
Winter Storm Watches in North Carolina, 2021Every winter storm watch 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.