Alert archive / North Carolina / Tornado Warnings in 2011
Tornado Warning 3, NWS Raleigh, NC
NWS Raleigh, NC issued this tornado warning at Apr 5, 2011, 2:40 AM EDT for 4 counties in North Carolina. It was in force for 18 min. 4 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Apr 5, 2011, 2:40 AM EDT (06:40 UTC)
- Expired
- Apr 5, 2011, 2:58 AM EDT
- In force
- 18 min
- Issued by
- NWS Raleigh, NC
- Area
- Storm-based polygon
Counties Davidson County, NC, Forsyth County, NC, Guilford County, NC, Randolph County, NC
The radar
The Roanoke radar (KFCX), 113 km from the middle of the area, began a volume at 06:43 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 5, 2:43 AM EDT | TSTM WND GST 59 | Piedmont Triad Airport, NC | |
| Apr 5, 2:45 AM EDT | TSTM WND DMG | 1 Ese Greensboro, NC | ROOF DAMAGE TO A BUILDING AND NUMEROUS TREES DOWN THE UNCG CAMPUS. LARGE STATUE TOPPLED. TIME ESTIMATED BY RADAR. |
| Apr 5, 2:45 AM EDT | TSTM WND DMG | Greensboro, NC | 20 HOMES DAMAGED... TREES ON HOMES THROUGHOUT GREENSBORO. |
| Apr 5, 3:00 AM EDT | TSTM WND DMG | 4 Sw Greensboro, NC | LARGE TREE DOWN ON GLENOAKS DR. IN GREENSBORO |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Apr 5, 12:48 AM EDT | Tornado Watch | SPC | 5 hr |
The nearest sounding before it
Greensboro/Hi Pt, NC (KGSO), launched 00:00Z, 6.7 hours before the alert went out and 3 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
- 2364 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 144 m²/s²
- 0-3 km storm-relative helicity
- 291 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
830 WFUS52 KRAH 050640 TORRAH NCC057-067-081-151-050715- /O.NEW.KRAH.TO.W.0003.110405T0640Z-110405T0715Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE RALEIGH NC 240 AM EDT TUE APR 5 2011 THE NATIONAL WEATHER SERVICE IN RALEIGH HAS ISSUED A * TORNADO WARNING FOR... NORTHWESTERN RANDOLPH COUNTY IN CENTRAL NORTH CAROLINA NORTHEASTERN DAVIDSON COUNTY IN CENTRAL NORTH CAROLINA GUILFORD COUNTY IN CENTRAL NORTH CAROLINA SOUTHEASTERN FORSYTH COUNTY IN CENTRAL NORTH CAROLINA * UNTIL 315 AM EDT * AT 235 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A TORNADO OVER THOMASVILLE...OR 6 MILES SOUTHWEST OF HIGH POINT... MOVING NORTHEAST AT 60 MPH. DAMAGING STRAIGHT LINE WINDS IN EXCESS OF 58 MPH ARE ALSO LIKELY WITH THIS STORM. * LOCATIONS IMPACTED INCLUDE... JAMESTOWN... PLEASANT GARDEN... GREENSBORO...FOREST OAKS... HIGH POINT PRECAUTIONARY/PREPAREDNESS ACTIONS... NIGHTTIME TORNADOES ARE EXTREMELY DANGEROUS AS THEY ARE DIFFICULT TO SEE. TAKE COVER NOW. DO NOT SEEK VISUAL CONFIRMATION. PLEASE REPORT SEVERE WEATHER TO THE NATIONAL WEATHER SERVICE BY CALLING...1...8 7 7...6 3 3...6 7 7 2 OR NOTIFY YOUR LOCAL LAW ENFORCEMENT AGENCY. A TORNADO WATCH REMAINS IN EFFECT UNTIL 600 AM EDT TUESDAY MORNING FOR CENTRAL NORTH CAROLINA. && LAT...LON 3622 7980 3596 7964 3584 8011 3601 8020 TIME...MOT...LOC 0639Z 247DEG 51KT 3596 8003 $$ ELLIS
1 follow-up statement
147 WWUS52 KRAH 050658 SVSRAH SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE RALEIGH NC 258 AM EDT TUE APR 5 2011 NCC057-067-081-151-050707- /O.CAN.KRAH.TO.W.0003.000000T0000Z-110405T0715Z/ RANDOLPH NC-DAVIDSON NC-GUILFORD NC-FORSYTH NC- 258 AM EDT TUE APR 5 2011 ...THE TORNADO WARNING FOR SOUTHEASTERN FORSYTH...GUILFORD... NORTHEASTERN DAVIDSON AND NORTHWESTERN RANDOLPH COUNTIES IS CANCELLED... THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE AREA AND THE WARNING IS NO LONGER IN EFFECT. IF YOU OBSERVED SEVERE WEATHER INCLUDING DAMAGING WINDS OR LARGE HAIL...PLEASE CONTACT THE NATIONAL WEATHER SERVICE BY CALLING TOLL FREE 1...8 7 7...6 3 3...6 7 7 2...OR NOTIFY YOUR NEAREST LAW ENFORCEMENT AGENCY AND ASK THEM TO RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN RALEIGH. A TORNADO WATCH REMAINS IN EFFECT UNTIL 600 AM EDT TUESDAY MORNING FOR CENTRAL NORTH CAROLINA. LAT...LON 3622 7980 3596 7964 3584 8011 3601 8020 TIME...MOT...LOC 0657Z 247DEG 51KT 3606 7974 $$ ELLIS
The office that day
Everything else NWS Raleigh, NC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 5, 1:32 AM EDT | Severe Thunderstorm Warning | RAH | Davidson, Forsyth | 43 min |
| Apr 5, 2:11 AM EDT | Severe Thunderstorm Warning | RAH | Davidson, Forsyth, Guilford, Randolph | 49 min |
| Apr 5, 2:16 AM EDT | Severe Thunderstorm Warning | RAH | Anson, Montgomery, Randolph, Richmond, Stanly | 44 min |
| Apr 5, 2:50 AM EDT | Severe Thunderstorm Warning | RAH | Alamance, Chatham, Guilford, Randolph | 40 min |
| Apr 5, 2:56 AM EDT | Tornado Warning | RAH | Alamance, Guilford | 34 min |
| Apr 5, 2:58 AM EDT | Severe Thunderstorm Warning | RAH | Anson, Montgomery, Moore, Richmond | 47 min |
| Apr 5, 3:15 AM EDT | Severe Thunderstorm Warning | RAH | Alamance, Durham, Orange, Person | 45 min |
| Apr 5, 3:25 AM EDT | Severe Thunderstorm Warning | RAH | Chatham, Wake | 50 min |
| Apr 5, 3:40 AM EDT | Severe Thunderstorm Warning | RAH | Franklin, Granville, Vance, Wake | 37 min |
| Apr 5, 3:42 AM EDT | Special Weather Statement | RAH | Harnett, Hoke, Lee, Scotland | 63 min |
| Apr 5, 4:08 AM EDT | Severe Thunderstorm Warning | RAH | Franklin, Johnston, Nash, Wake | 37 min |
| Apr 5, 4:12 AM EDT | Special Weather Statement | RAH | Warren | 63 min |
| Apr 5, 4:25 AM EDT | Severe Thunderstorm Warning | RAH | Cumberland, Harnett, Johnston, Sampson, Wayne | 65 min |
| Apr 5, 4:36 AM EDT | Severe Thunderstorm Warning | RAH | Edgecombe, Halifax, Johnston, Nash, Wilson | 54 min |
| Apr 5, 5:36 AM EDT | Special Weather Statement | RAH | Sampson, Wayne | 54 min |
| Apr 5, 6:41 AM EDT | Special Weather Statement | RAH | Sampson, Wayne | 64 min |
| Apr 5, 7:06 AM EDT | Frost Advisory | RAH | Alamance, Anson, Chatham, Cumberland, Davidson, Durham and 25 more | 26 hr |
| Apr 5, 8:18 AM EDT | Special Weather Statement | RAH | Alamance, Chatham, Durham, Franklin, Granville, Lee and 6 more | 87 min |
| Apr 5, 8:25 AM EDT | Special Weather Statement | RAH | Cumberland, Harnett, Hoke, Johnston, Lee, Montgomery and 5 more | 95 min |
| Apr 5, 9:33 AM EDT | Severe Thunderstorm Warning | RAH | Cumberland, Harnett, Johnston, Sampson, Wake, Wayne and 1 more | 87 min |
| Apr 5, 9:33 AM EDT | Severe Thunderstorm Warning | RAH | Edgecombe, Franklin, Halifax, Nash, Warren | 87 min |
Nearby
Tornado Warnings in North Carolina, 2011Every tornado warning in 2011Tornadoes 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.