Alert archive / North Carolina / Flash Flood Warnings in 2011
Flash Flood Warning 83, NWS Blacksburg, VA
NWS Blacksburg, VA issued this flash flood warning at Sep 6, 2011, 9:27 AM EDT for Ashe County, Watauga County, Wilkes County, North Carolina. It was in force for 5 hr. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Sep 6, 2011, 9:27 AM EDT (13:27 UTC)
- Expired
- Sep 6, 2011, 2:00 PM EDT
- In force
- 5 hr
- Issued by
- NWS Blacksburg, VA
- Area
- Storm-based polygon
- Flood severity
- None
Counties Ashe County, NC, Watauga County, NC, Wilkes County, NC
The radar
The Roanoke radar (KFCX), 129 km from the middle of the area, began a volume at 13:31 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, 1.5 hours before the alert went out and 136 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
- 1434 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 515 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 246 m²/s²
- 0-3 km storm-relative helicity
- 274 m²/s²
- Significant tornado parameter
- 1.9
- Supercell composite
- 11.1
The text
As transmitted, in the capitals the NWS used until 2016.
251
WGUS51 KRNK 061327
FFWRNK
NCC009-189-193-061915-
/O.NEW.KRNK.FF.W.0083.110906T1327Z-110906T1915Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BLACKSBURG VA
927 AM EDT TUE SEP 6 2011
THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A
* FLASH FLOOD WARNING FOR...
SOUTHEASTERN ASHE COUNTY IN NORTHWEST NORTH CAROLINA
WATAUGA COUNTY IN NORTHWEST NORTH CAROLINA
NORTHWESTERN WILKES COUNTY IN NORTHWEST NORTH CAROLINA
* UNTIL 315 PM EDT.
* AT 912 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
VERY HEAVY RAIN FROM STORMS WILL MOVE OVER THE WARNED AREA THROUGH
EARLY AFTERNOON. IN THE LAST 24 HOURS...4 TO 7 INCHES OF RAIN HAS
FALLEN ACROSS THE AREA. WITH THE GROUND BEING SATURATED AND
ADDITIONAL RAINFALL EXPECTED...FLASH FLOODING IS HIGHLY LIKELY. A
FLOOD WARNING FOR CREEKS AND STREAMS IS ALSO IN EFFECT INTO TONIGHT.
* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO MOSES CONE
MEMORIAL PARK...CASCADE FALLS...MOUNT JEFFERSON...GRANDFATHER
MOUNTAIN...WAGONER...OTHELLO...IDLEWILD...GLENDALE SPRINGS...
FLEETWOOD...BALDWIN...LAUREL SPRINGS...WILBAR...SUMMIT...MC
GRADY...HALLS MILLS...DARBY...MAPLE SPRINGS...TODD...SEVEN
DEVILS...SANDS...RUTHERWOOD...FOSCOE...DEEP GAP...BOONE...BLOWING
ROCK AND AHO.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
ADDITIONAL RAINFALL AMOUNTS OF AN INCH OR MORE ARE POSSIBLE THROUGH
2 PM THIS AFTERNOON. HIGHER AMOUNTS OF 2 TO 3 INCHES ARE POSSIBLE ON
EASTERN SLOPES OF THE BLUE RIDGE ACROSS THE NORTH CAROLINA HIGH
COUNTY.
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.
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 3651 8133 3648 8132 3645 8127 3640 8126
3639 8124 3637 8125 3640 8119 3630 8112
3606 8141 3609 8149 3609 8152 3611 8155
3611 8182 3616 8183
$$
RCS2 follow-up statements
290
WGUS71 KRNK 061452
FFSRNK
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
1052 AM EDT TUE SEP 6 2011
NCC009-189-193-061915-
/O.CON.KRNK.FF.W.0083.000000T0000Z-110906T1915Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ASHE NC-WATAUGA NC-WILKES NC-
1052 AM EDT TUE SEP 6 2011
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 315 PM EDT FOR
SOUTHEASTERN ASHE...WATAUGA AND WESTERN WILKES COUNTIES...
AT 1040 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUES TO
SHOW BANDS OF HEAVY RAIN TRACKING NORTHWARD OVER THE WARNED AREA.
THESE BANDS SHOULD EXIT THE WARNED AREA BY 1130 AM. THE THREAT OF
FLASH FLOODING IS DECLINING...HOWEVER...AREAL FLOODING FROM CREEKS
AND STREAM REMAINS. RUNOFF WILL CONTINUE TO KEEP CREEKS AND STREAMS
HIGH INTO THIS EVENING. ALONG WITH RUNOFF...LANDSLIDES ALSO
POSSIBLE. EXERCISE CAUTION WHEN DRIVING TODAY.
LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO MOUNT
JEFFERSON...WAGONER...OTHELLO...IDLEWILD...GLENDALE SPRINGS...
FLEETWOOD...BALDWIN...LAUREL SPRINGS...MC GRADY...HALLS MILLS AND
TODD
PRECAUTIONARY/PREPAREDNESS ACTIONS...
EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY
ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW
LYING AREAS ARE SUBJECT TO FLOODING.
RAINFALL ASSOCIATED WITH THIS FLASH FLOOD WILL INCREASE THE RISK OF
LANDSLIDES. IF YOU ARE NEAR STEEP SLOPES OR A MOUNTAINSIDE STREAM OR
RIVER...SEEK REFUGE ON HIGHER GROUND AWAY FROM THE STREAM
IMMEDIATELY...PREFERABLY IN A STURDY SHELTER. POTENTIAL HAZARDS TO
DRIVERS INCLUDE WASHED-OUT ROADS OR BRIDGES...FALLING ROCKS...MUD...
TREES...AND OTHER LARGE DEBRIS. REMAIN ALERT!
A TORNADO WATCH REMAINS IN EFFECT UNTIL 200 PM EDT TUESDAY AFTERNOON
FOR NORTHWESTERN NORTH CAROLINA AND SOUTHWESTERN VIRGINIA.
&&
LAT...LON 3651 8133 3648 8132 3645 8127 3640 8126
3639 8124 3637 8125 3640 8119 3630 8112
3606 8141 3609 8149 3609 8152 3611 8155
3611 8182 3616 8183
$$
RCS581
WGUS71 KRNK 061800
FFSRNK
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
200 PM EDT TUE SEP 6 2011
NCC009-189-193-061810-
/O.CAN.KRNK.FF.W.0083.000000T0000Z-110906T1915Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ASHE NC-WATAUGA NC-WILKES NC-
200 PM EDT TUE SEP 6 2011
...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR SOUTHEASTERN
ASHE...WATAUGA AND WESTERN WILKES COUNTIES...
THE FLOOD WARNING REMAINS IN EFFECT INTO THIS EVENING. CREEKS AND
STREAMS WILL REMAIN HIGH FOR THE NEXT 24 HOURS.
LAT...LON 3651 8133 3648 8132 3645 8127 3640 8126
3639 8124 3637 8125 3640 8119 3630 8112
3606 8141 3609 8149 3609 8152 3611 8155
3611 8182 3616 8183
$$
RCSThe office that day
Everything else NWS Blacksburg, VA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 5, 8:44 PM EDT | Flash Flood Warning | RNK | Watauga, Wilkes | 6 hr |
| Sep 5, 9:01 PM EDT | Special Weather Statement | RNK | Surry | 29 min |
| Sep 5, 9:13 PM EDT | Severe Thunderstorm Warning | RNK | Wilkes | 47 min |
| Sep 5, 9:20 PM EDT | Special Weather Statement | RNK | Rockingham, Stokes, Surry, Yadkin | 55 min |
| Sep 5, 9:40 PM EDT | Severe Thunderstorm Warning | RNK | Stokes, Surry, Wilkes, Yadkin | 45 min |
| Sep 5, 10:19 PM EDT | Flash Flood Warning | RNK | Surry | 6 hr |
| Sep 6, 12:17 AM EDT | Flash Flood Warning | RNK | Alleghany, Surry, Wilkes | 6 hr |
| Sep 6, 6:58 AM EDT | Areal Flood Warning | RNK | Ashe, Watauga | 3 hr |
| Sep 6, 9:48 AM EDT | Tornado Warning | RNK | Stokes, Surry | 27 min |
| Sep 6, 9:57 AM EDT | Areal Flood Warning | RNK | Alleghany, Ashe, Surry, Watauga, Wilkes | 12 hr |
| Sep 6, 11:38 AM EDT | Special Weather Statement | RNK | Surry | 37 min |
| Sep 6, 1:10 PM EDT | Tornado Warning | RNK | Caswell | 35 min |
| Sep 6, 3:07 PM EDT | Special Weather Statement | RNK | Rockingham | 23 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.