Alert archive / North Carolina / Flash Flood Warnings in 2011
Flash Flood Warning 84, NWS Blacksburg, VA
NWS Blacksburg, VA issued this flash flood warning at Sep 25, 2011, 2:03 AM EDT for Watauga County, North Carolina. It was in force for 5 hr. 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
- Sep 25, 2011, 2:03 AM EDT (06:03 UTC)
- Expired
- Sep 25, 2011, 7:27 AM EDT
- In force
- 5 hr
- Issued by
- NWS Blacksburg, VA
- Area
- Storm-based polygon
- Flood severity
- None
County Watauga County, NC
The radar
The Knoxville radar (KMRX), 148 km from the middle of the area, began a volume at 06:06 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 |
|---|---|---|---|
| Sep 25, 3:30 AM EDT | FLASH FLOOD | Boone, NC | FLASH FLOODING REPORTED ALONG HIGHWAY 321 IN BOONE. |
| Sep 25, 4:00 AM EDT | FLASH FLOOD | 1 Wnw Boone, NC | BOONE CREEK FLOODED SEVERAL BUILDINGS ON THE APPALACHIAN STATE CAMPUS. |
| Sep 25, 4:00 AM EDT | FLASH FLOOD | Boone, NC | KRAUT CREEK FLOODED MALL ROAD. |
| Sep 25, 7:20 AM EDT | FLASH FLOOD | 6 W Boone, NC | WATAUGA RIVER FLOODED A BRIDGE ALONG DEWITT BARNETT ROAD IN THE VALLE CRUCIS AREA. |
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 00:00Z, 6.1 hours before the alert went out and 168 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
- 367 J/kg
- Mixed-layer CIN
- -3 J/kg
- Mixed-layer LCL
- 666 m above ground
- 0-6 km bulk shear
- 58 kt
- 0-1 km storm-relative helicity
- 41 m²/s²
- 0-3 km storm-relative helicity
- 11 m²/s²
- Significant tornado parameter
- -0.0
- Supercell composite
- -0.0
The text
As transmitted, in the capitals the NWS used until 2016.
114
WGUS51 KRNK 250603
FFWRNK
NCC189-251200-
/O.NEW.KRNK.FF.W.0084.110925T0603Z-110925T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BLACKSBURG VA
203 AM EDT SUN SEP 25 2011
THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A
* FLASH FLOOD WARNING FOR...
WATAUGA COUNTY IN NORTHWEST NORTH CAROLINA
* UNTIL 800 AM EDT.
* AT 158 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
VERY HEAVY RAIN FROM SHOWERS AND ISOLATED THUNDERSTORMS OVER THE
WARNED AREA. ADDITIONAL RAINFALL OF ONE TO THREE INCHES IS
POSSIBLE.
* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO MOSES CONE
MEMORIAL PARK...GRANDFATHER MOUNTAIN...VALLE CRUCIS...SUGAR
GROVE...SILVERSTONE...SEVEN DEVILS...SANDS...RUTHERWOOD...
ROMINGER...REESE...PEORIA...MEAT CAMP...LOVILL...FOSCOE...DEEP
GAP...BOONE...BLOWING ROCK...BEECH MOUNTAIN AND AHO.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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.
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE
UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS
SUBJECT TO FLOODING WHEN WATER BEGINS RISING.
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 3634 8185 3636 8179 3622 8147 3620 8146
3614 8150 3611 8155 3612 8171 3611 8181
3619 8185 3619 8189 3621 8191 3623 8192
3627 8190 3629 8192
$$
KK3 follow-up statements
913
WGUS71 KRNK 250639
FFSRNK
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
239 AM EDT SUN SEP 25 2011
NCC189-251200-
/O.CON.KRNK.FF.W.0084.000000T0000Z-110925T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WATAUGA NC-
239 AM EDT SUN SEP 25 2011
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 800 AM EDT FOR
WATAUGA COUNTY...
AT 232 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE SHOWERS AND ISOLATED THUNDERSTORMS PRODUCING VERY HEAVY
RAIN OVER THE WARNED AREA.
LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO VALLE
CRUCIS...SUGAR GROVE...SILVERSTONE...SANDS...RUTHERWOOD...ROMINGER...
REESE...PEORIA...MEAT CAMP...LOVILL...DEEP GAP...BOONE AND BEECH
MOUNTAIN
WATCH FOR FLOODING ALONG SEVEN DEVILS ROAD...ALONG LANCE CREEK IN
THE FOSCOE AREA...AND ALONG KRAUT CREEK IN THE BOONE AREA.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
ADDITIONAL RAINFALL AMOUNTS OF ONE TO THREE INCHES ARE POSSIBLE IN
THE WARNED AREA.
EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY
ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW
LYING AREAS ARE SUBJECT TO FLOODING.
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE
UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS
SUBJECT TO FLOODING WHEN WATER BEGINS RISING.
&&
LAT...LON 3634 8185 3636 8179 3622 8147 3620 8146
3614 8150 3611 8155 3612 8171 3611 8181
3619 8185 3619 8189 3621 8191 3623 8192
3627 8190 3629 8192
$$
KK106
WGUS71 KRNK 250844
FFSRNK
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
444 AM EDT SUN SEP 25 2011
NCC189-251200-
/O.CON.KRNK.FF.W.0084.000000T0000Z-110925T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WATAUGA NC-
444 AM EDT SUN SEP 25 2011
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 800 AM EDT FOR
WATAUGA COUNTY...
AT 440 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE SHOWERS AND ISOLATED THUNDERSTORM...SOME WITH HEAVY RAIN
OVER THE WARNED AREA. THE BOONE FIRE DEPARTMENT REPORTED FLASH
FLOODING ALONG HIGHWAY 321 IN BOONE. THE PUBLIC REPORTED FLOODING ON
RIVER STREET AND HIGHWAY 421 AT NEW MARKET NEAR BOONE.
LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO VALLE
CRUCIS...SUGAR GROVE...SILVERSTONE...SANDS...RUTHERWOOD...ROMINGER...
REESE...PEORIA...MEAT CAMP...LOVILL...BOONE AND DEEP GAP
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.
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE
UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS
SUBJECT TO FLOODING WHEN WATER BEGINS RISING.
&&
LAT...LON 3634 8185 3636 8179 3622 8147 3620 8146
3614 8150 3611 8155 3612 8171 3611 8181
3619 8185 3619 8189 3621 8191 3623 8192
3627 8190 3629 8192
$$
KK826
WGUS71 KRNK 251127
FFSRNK
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
727 AM EDT SUN SEP 25 2011
NCC189-251137-
/O.CAN.KRNK.FF.W.0084.000000T0000Z-110925T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WATAUGA NC-
727 AM EDT SUN SEP 25 2011
...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR WATAUGA COUNTY...
HEAVY RAIN HAS ENDED OVER THE WARNED AREA...THUS THE FLASH FLOOD
WARNING HAS BEEN CANCELLED.
LAT...LON 3634 8185 3636 8179 3622 8147 3620 8146
3614 8150 3611 8155 3612 8171 3611 8181
3619 8185 3619 8189 3621 8191 3623 8192
3627 8190 3629 8192
$$The office that day
Everything else NWS Blacksburg, VA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 24, 9:47 PM EDT | Special Weather Statement | RNK | Watauga | 118 min |
| Sep 24, 11:44 PM EDT | Special Weather Statement | RNK | Ashe, Watauga | 76 min |
| Sep 25, 1:00 AM EDT | Special Weather Statement | RNK | Ashe, Watauga | 60 min |
| Sep 25, 2:45 AM EDT | Special Weather Statement | RNK | Ashe | 60 min |
| Sep 25, 2:59 AM EDT | Flash Flood Warning | RNK | Ashe | 4 hr |
| Sep 25, 3:08 AM EDT | Special Weather Statement | RNK | Alleghany, Wilkes | 52 min |
| Sep 25, 5:20 PM EDT | Severe Thunderstorm Warning | RNK | Surry, Wilkes, Yadkin | 40 min |
| Sep 25, 6:09 PM EDT | Special Weather Statement | RNK | Surry | 36 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.