Alert archive / North Carolina / Flash Flood Warnings in 2011

Flash Flood Warning 38, NWS Blacksburg, VA

June 5, 2011Wilkes County, North Carolina

NWS Blacksburg, VA issued this flash flood warning at Jun 5, 2011, 10:25 PM EDT for Wilkes County, North Carolina. It was in force for 6 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
Jun 5, 2011, 10:25 PM EDT (02:25 UTC)
Expired
Jun 6, 2011, 4:30 AM EDT
In force
6 hr
Issued by
NWS Blacksburg, VA
Area
Storm-based polygon
Flood severity
None

County Wilkes County, NC

The radar

The Roanoke radar (KFCX), 107 km from the middle of the area, began a volume at 02:27 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 00:00Z, 2.4 hours before the alert went out and 118 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.

Skew-T log-pSkew-T log-p diagram, Greensboro/Hi Pt, NC at 00:00Z on 2011-06-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 390 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Greensboro/Hi Pt, NC at 00:00Z on 2011-06-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -17 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
390 J/kg
Mixed-layer CIN
-62 J/kg
Mixed-layer LCL
1785 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
-17 m²/s²
0-3 km storm-relative helicity
39 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

564 
WGUS51 KRNK 060225
FFWRNK
NCC193-060830-
/O.NEW.KRNK.FF.W.0038.110606T0225Z-110606T0830Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BLACKSBURG VA
1025 PM EDT SUN JUN 5 2011

THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTH CENTRAL WILKES COUNTY IN NORTHWEST NORTH CAROLINA

* UNTIL 430 AM EDT MONDAY.

* AT 1023 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  VERY HEAVY RAIN FROM A THUNDERSTORM OVER THE WARNED AREA.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO DOUGHTON
  PARK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

ADDITIONAL RAINFALL AMOUNTS OF 1 TO 3 INCHES ARE POSSIBLE IN THE 
WARNED AREA.

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 3637 8124 3640 8119 3643 8117 3642 8114
      3643 8112 3633 8107 3627 8115

$$

AMS
2 follow-up statements
537 
WGUS71 KRNK 060508
FFSRNK

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
108 AM EDT MON JUN 6 2011

NCC193-060830-
/O.CON.KRNK.FF.W.0038.000000T0000Z-110606T0830Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WILKES NC-
108 AM EDT MON JUN 6 2011

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 430 AM EDT FOR
NORTHERN WILKES COUNTY...

AT 1257 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
THAT THE HEAVY RAIN PRODUCING THUNDERSTORMS HAVE ENDED ACROSS THE 
WARNED AREA. CONCERN CONTINUES THOUGH FOR COLLECTION OF RUNOFF WATER 
FROM THE EARLIER STORMS FILLING AND OVERFLOWING STREAMS AND CREEKS 
IN THE AREA. AREAS OF GREATEST CONCERN INCLUDE...BUT ARE NOT LIMITED 
TO...WEST PRONG ROARING RIVER INCLUDING CABIN CREEK ROAD...CANE 
CREEK INCLUDING CANE CREEK ROAD...AND MIDDLE PRONG ROARING RIVER 
INCLUDING LONG BOTTOM ROAD.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO DOUGHTON PARK

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

FLOODING IS OCCURRING OR IS IMMINENT. IT IS IMPORTANT TO KNOW WHERE
YOU ARE RELATIVE TO STREAMS...RIVERS...OR CREEKS WHICH CAN BECOME
KILLERS IN HEAVY RAINS. CAMPERS AND HIKERS SHOULD AVOID STREAMS OR
CREEKS.

&&

LAT...LON 3637 8124 3640 8119 3643 8117 3642 8114
      3643 8112 3633 8107 3627 8115

$$

DS
587 
WGUS71 KRNK 060824
FFSRNK

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
424 AM EDT MON JUN 6 2011

NCC193-060833-
/O.EXP.KRNK.FF.W.0038.000000T0000Z-110606T0830Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WILKES NC-
424 AM EDT MON JUN 6 2011

...THE FLASH FLOOD WARNING WILL EXPIRE AT 430 AM EDT FOR NORTHERN
WILKES COUNTY...

NO HEAVY RAIN HAS FALLEN ACROSS THE WARNED AREA IN OVER FOUR 
HOURS...AND NO REPORTS OF FLASH FLOODING HAVE BEEN RECEIVED. 
THEREFORE...THE WARNING WILL BE ALLOWED TO EXPIRE.

LAT...LON 3637 8124 3640 8119 3643 8117 3642 8114
      3643 8112 3633 8107 3627 8115

$$

DS

The office that day

Everything else NWS Blacksburg, VA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 5, 8:07 PM EDTSpecial Weather StatementRNKStokes53 min
Jun 5, 8:08 PM EDTSpecial Weather StatementRNKAlleghany, Wilkes67 min
Jun 5, 9:14 PM EDTSpecial Weather StatementRNKWilkes61 min
Jun 5, 9:50 PM EDTSevere Thunderstorm WarningRNKAlleghany, Ashe, Wilkes55 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.