Alert archive / North Carolina / Tornado Warnings in 2011
Tornado Warning 17, NWS Blacksburg, VA
NWS Blacksburg, VA issued this tornado warning at Apr 16, 2011, 2:10 PM EDT for Caswell County, North Carolina. It was in force for 35 min. 3 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 16, 2011, 2:10 PM EDT (18:10 UTC)
- Expired
- Apr 16, 2011, 2:45 PM EDT
- In force
- 35 min
- Issued by
- NWS Blacksburg, VA
- Area
- Storm-based polygon
County Caswell County, NC
The radar
The Raleigh/Durham radar (KRAX), 98 km from the middle of the area, began a volume at 18:13 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 16, 2:13 PM EDT | TSTM WND DMG | 1 Se Jericho, NC | PRELIMINARY INFORMATION FROM EMERGENCY MANAGER OF DAMAGE TO NUMEROUS HOMES IN THE AREA WITH SOME ROOFS BLOWN OFF. ALSO TREES DOWN. |
| Apr 16, 2:13 PM EDT | TSTM WND DMG | 3 Sse Jericho, NC | POSSIBLE TORNADO FROM 36.25N...M79.34W TO 36.27N...M79.305W. 15 SHEDS DESTROYED. 1 HOME DESTROYED. 4 HOMES WITH MODERATE DAMAGE. NUMEROUS TREES DOWN. NWS WILL SEND INVESTIGATION TEAM SUNDAY 4/17/2011. |
| Apr 16, 2:13 PM EDT | TORNADO | 3 Sse Jericho, NC | CONFIRMED EF-1 TORNADO. ENTERED THE COUNTY FROM ALAMANCE COUNTY AND MOVED NORTHEAST. MAXIMUM WIND SPEED 90 MPH. MAXIMUM PATH WIDTH 300 YARDS. PATH LENGTH 3.4 MILES. 18 BARNS...ONE SHED AND TEN HOMES DAMAGED. ENDED 218 PM AT 36.27N...79.30W. |
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 16, 12:02 PM EDT | Tornado Watch | SPC | 11 hr |
The nearest sounding before it
Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 6.2 hours before the alert went out and 64 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
- 516 m above ground
- 0-6 km bulk shear
- 54 kt
- 0-1 km storm-relative helicity
- 605 m²/s²
- 0-3 km storm-relative helicity
- 909 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
979
WFUS51 KRNK 161810
TORRNK
NCC033-161845-
/O.NEW.KRNK.TO.W.0017.110416T1810Z-110416T1845Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE BLACKSBURG VA
210 PM EDT SAT APR 16 2011
THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A
* TORNADO WARNING FOR...
SOUTHEASTERN CASWELL COUNTY IN NORTH CENTRAL NORTH CAROLINA
* UNTIL 245 PM EDT.
* AT 207 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 7 MILES
SOUTHWEST OF JERICHO...MOVING NORTHEAST AT 55 MPH.
* LOCATIONS IMPACTED INCLUDE...
BAYNES...
PROSPECT HILL...
HIGHTOWERS...
LEASBURG...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED
BUILDING. AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH OR LOW
SPOT AND COVER YOUR HEAD WITH YOUR HANDS.
WHEN IT IS SAFE TO DO SO...PLEASE RELAY YOUR SEVERE WEATHER REPORTS
TO THE NATIONAL WEATHER SERVICE BY CALLING TOLL FREE AT...1...8 6
6...2 1 5...4 3 2 4.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM EDT SATURDAY EVENING
FOR NORTHWESTERN NORTH CAROLINA AND SOUTHWESTERN VIRGINIA.
&&
LAT...LON 3636 7932 3641 7914 3629 7914 3625 7915
3624 7916 3624 7946
TIME...MOT...LOC 1810Z 234DEG 46KT 3622 7939
$$
RCS3 follow-up statements
955
WWUS51 KRNK 161823
SVSRNK
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
223 PM EDT SAT APR 16 2011
NCC033-161845-
/O.CON.KRNK.TO.W.0017.000000T0000Z-110416T1845Z/
CASWELL NC-
223 PM EDT SAT APR 16 2011
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 245 PM EDT FOR
SOUTHEASTERN CASWELL COUNTY...
AT 221 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO. THIS TORNADO WAS LOCATED NEAR HIGHTOWERS...OR
NEAR PROSPECT HILL...MOVING NORTHEAST AT 55 MPH.
LOCATIONS IMPACTED INCLUDE...
HIGHTOWERS...
LEASBURG...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
DO NOT USE YOUR CAR TO TRY TO OUTRUN A TORNADO. CARS ARE EASILY
TOSSED AROUND BY TORNADO WINDS. IF YOU ARE CAUGHT IN THE PATH OF A
TORNADO...LEAVE THE CAR AND GO TO A STRONG BUILDING. IF NO SAFE
STRUCTURE IS NEARBY...SEEK SHELTER IN A DITCH OR LOW SPOT AND COVER
YOUR HEAD.
TO REPORT SEVERE WEATHER...PLEASE CONTACT THE NATIONAL WEATHER
SERVICE IN BLACKSBURG AT...1...8 6 6...2 1 5...4 3 2 4...WHEN YOU CAN
DO SO SAFELY.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM EDT SATURDAY EVENING
FOR NORTHWESTERN NORTH CAROLINA AND SOUTHWESTERN VIRGINIA.
&&
LAT...LON 3624 7928 3636 7931 3641 7914 3629 7914
3625 7915 3624 7916
TIME...MOT...LOC 1823Z 234DEG 48KT 3632 7922
$$
RCS990
WWUS51 KRNK 161836
SVSRNK
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
236 PM EDT SAT APR 16 2011
NCC033-161845-
/O.CON.KRNK.TO.W.0017.000000T0000Z-110416T1845Z/
CASWELL NC-
236 PM EDT SAT APR 16 2011
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 245 PM EDT FOR
SOUTHEASTERN CASWELL COUNTY...
AT 235 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO. THIS TORNADO WAS LOCATED NEAR PROSPECT HILL...
MOVING NORTHEAST AT 65 MPH.
LOCATIONS IMPACTED INCLUDE...
PROSPECT HILL...
LEASBURG...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED
BUILDING. AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH OR LOW
SPOT AND COVER YOUR HEAD WITH YOUR HANDS.
TO REPORT SEVERE WEATHER...PLEASE CONTACT THE NATIONAL WEATHER
SERVICE IN BLACKSBURG AT...1...8 6 6...2 1 5...4 3 2 4...WHEN YOU CAN
DO SO SAFELY.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM EDT SATURDAY EVENING
FOR NORTHWESTERN NORTH CAROLINA AND SOUTHWESTERN VIRGINIA.
&&
LAT...LON 3624 7928 3636 7931 3641 7914 3629 7914
3625 7915 3624 7916
TIME...MOT...LOC 1837Z 233DEG 54KT 3624 7920
$$
RCS011
WWUS51 KRNK 161841
SVSRNK
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
241 PM EDT SAT APR 16 2011
NCC033-161851-
/O.EXP.KRNK.TO.W.0017.000000T0000Z-110416T1845Z/
CASWELL NC-
241 PM EDT SAT APR 16 2011
...THE TORNADO WARNING FOR SOUTHEASTERN CASWELL COUNTY EXPIRES AT 245
PM EDT...
REPORT ANY SEVERE WEATHER OR STORM RELATED DAMAGE TO LOCAL LAW
ENFORCEMENT OFFICIALS AND ASK THEM TO IMMEDIATELY RELAY THE REPORT TO
THE NATIONAL WEATHER SERVICE OFFICE IN BLACKSBURG.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM EDT SATURDAY EVENING
FOR NORTHWESTERN NORTH CAROLINA AND SOUTHWESTERN VIRGINIA.
LAT...LON 3624 7928 3636 7931 3641 7914 3629 7914
3625 7915 3624 7916
TIME...MOT...LOC 1841Z 233DEG 54KT 3627 7914
$$
RCSThe office that day
Everything else NWS Blacksburg, VA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 16, 5:13 AM EDT | Flash Flood Warning | RNK | Watauga | 9 hr |
| Apr 16, 9:35 AM EDT | Flash Flood Warning | RNK | Alleghany, Ashe, Wilkes | 5 hr |
| Apr 16, 9:58 AM EDT | Special Weather Statement | RNK | Ashe | 32 min |
| Apr 16, 11:38 AM EDT | Special Weather Statement | RNK | Surry | 67 min |
| Apr 16, 1:51 PM EDT | Severe Thunderstorm Warning | RNK | Caswell, Rockingham | 69 min |
| Apr 16, 1:57 PM EDT | Tornado Warning | RNK | Caswell, Rockingham | 48 min |
| Apr 16, 2:22 PM EDT | Areal Flood Advisory | RNK | Caswell | 3 hr |
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.