Alert archive / North Carolina / Flash Flood Warnings in 2011
Flash Flood Warning 50, NWS Blacksburg, VA
NWS Blacksburg, VA issued this flash flood warning at Jul 5, 2011, 5:42 PM EDT for Ashe County, North Carolina. It was in force for 108 min. 1 report 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
- Jul 5, 2011, 5:42 PM EDT (21:42 UTC)
- Expired
- Jul 5, 2011, 7:30 PM EDT
- In force
- 108 min
- Issued by
- NWS Blacksburg, VA
- Area
- Storm-based polygon
- Flood severity
- None
County Ashe County, NC
The radar
The Roanoke radar (KFCX), 118 km from the middle of the area, began a volume at 21:45 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 |
|---|---|---|---|
| Jul 5, 6:03 PM EDT | FLASH FLOOD | 2 Nw Jefferson, NC | CLAYBANK CREEK CAME OUT OF ITS BANKS. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 9.7 hours before the alert went out and 143 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
- 16 J/kg
- Mixed-layer CIN
- -250 J/kg
- Mixed-layer LCL
- 907 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 24 m²/s²
- 0-3 km storm-relative helicity
- 43 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
660
WGUS51 KRNK 052142
FFWRNK
NCC009-060345-
/O.NEW.KRNK.FF.W.0050.110705T2142Z-110706T0345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BLACKSBURG VA
542 PM EDT TUE JUL 5 2011
THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A
* FLASH FLOOD WARNING FOR...
CENTRAL ASHE COUNTY IN NORTHWEST NORTH CAROLINA
* UNTIL 1145 PM EDT.
* AT 536 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
VERY HEAVY RAIN FROM A STATIONARY THUNDERSTORM OVER THE WARNED
AREA.
* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO SHATLEY
SPRINGS...LANSING AND CLIFTON.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
ADDITIONAL RAINFALL AMOUNTS OF 1 TO 3 INCHES ARE POSSIBLE IN THE
WARNED AREA. SOME SPOTS HAVE ALREADY RECEIVED 1 TO 2 INCHES TODAY.
THE HEAVIEST RAIN IS CURRENTLY NEAR BUFFALO CREEK WHICH IN THE
PAST...HAS FLOODED THE INTERSECTIONS OF STATE ROUTE 1125 AND 1133.
EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES
AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.
PLEASE RELAY ANY REPORTS OF FLOODING INCLUDING MUDSLIDES...OR ROAD
CLOSURES TO THE NATIONAL WEATHER SERVICE IN BLACKSBURG BY CALLING
TOLL FREE...1...8 6 6...2 1 5...4 3 2 4. DELAYED REPORTS ARE WELCOME.
&&
LAT...LON 3650 8160 3657 8135 3656 8134 3654 8135
3652 8133 3648 8132 3647 8130 3641 8126
3630 8146 3637 8164
$$2 follow-up statements
163
WGUS71 KRNK 052232
FFSRNK
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
632 PM EDT TUE JUL 5 2011
NCC009-060345-
/O.CON.KRNK.FF.W.0050.000000T0000Z-110706T0345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ASHE NC-
632 PM EDT TUE JUL 5 2011
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1145 PM EDT FOR ASHE
COUNTY...
AT 627 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
VERY HEAVY RAIN HAD FALLEN OVER THE WARNED AREA. ESPECIALLY NEAR
WEST JEFFERSON WHERE 2 TO 3 INCHES HAS FALLEN WITHIN THE PAST FEW
HOURS.
LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO SHATLEY
SPRINGS AND LANSING
PRECAUTIONARY/PREPAREDNESS ACTIONS...
EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES
AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.
EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE
BANKS OF CREEKS AND STREAMS.
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. MOVE TO HIGHER GROUND.
&&
LAT...LON 3650 8160 3657 8135 3656 8134 3654 8135
3652 8133 3648 8132 3647 8130 3641 8126
3630 8146 3637 8164
$$673
WGUS71 KRNK 052330
FFSRNK
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
730 PM EDT TUE JUL 5 2011
NCC009-052341-
/O.CAN.KRNK.FF.W.0050.000000T0000Z-110706T0345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ASHE NC-
730 PM EDT TUE JUL 5 2011
...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR ASHE COUNTY...
HEAVY RAIN HAS ENDED OVER THE WARNED AREA...THUS THE FLASH FLOOD
WARNING HAS BEEN CANCELLED.
LAT...LON 3650 8160 3657 8135 3656 8134 3654 8135
3652 8133 3648 8132 3647 8130 3641 8126
3630 8146 3637 8164
$$The office that day
Everything else NWS Blacksburg, VA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 5, 3:38 AM EDT | Dense Fog Advisory | RNK | Alleghany, Ashe, Caswell, Rockingham, Stokes, Surry and 3 more | 5 hr |
| Jul 5, 3:02 PM EDT | Special Weather Statement | RNK | Alleghany | 28 min |
| Jul 5, 5:28 PM EDT | Special Weather Statement | RNK | Ashe | 32 min |
| Jul 5, 6:28 PM EDT | Special Weather Statement | RNK | Surry | 32 min |
| Jul 5, 6:40 PM EDT | Severe Thunderstorm Warning | RNK | Surry | 29 min |
Nearby
Flash Flood Warnings in North Carolina, 2011Every flash flood warning 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.