Alert archive / North Carolina / Flash Flood Warnings in 2016

Flash Flood Warning 1, NWS Blacksburg, VA

February 3, 2016Alleghany County, Ashe County, Watauga County, North Carolina

NWS Blacksburg, VA issued this flash flood warning at Feb 3, 2016, 8:42 AM EST for Alleghany County, Ashe County, Watauga County, North Carolina. It was in force for 7 hr. 7 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
Feb 3, 2016, 8:42 AM EST (13:42 UTC)
Expired
Feb 3, 2016, 3:45 PM EST
In force
7 hr
Issued by
NWS Blacksburg, VA
Area
Storm-based polygon
Flood severity
None

Counties Alleghany County, NC, Ashe County, NC, Watauga County, NC

The radar

The Roanoke radar (KFCX), 133 km from the middle of the area, began a volume at 13:44 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

TimeReportWhereRemark
Feb 3, 10:00 AM ESTHEAVY RAIN 23 W Lansing, NCRAIN HAS CAUSED FLOODING ON OLD HWY 16 AT CHESTNUT HILL
Feb 3, 10:00 AM ESTHEAVY RAIN 2.52 Nnw Aho, NCENOUGH RAIN HAS FALLEN TO FLOOD LOW LYING AREAS. DEERFIIELD RD. AT AIRPORT AND THE MALL ARE FLOODED.
Feb 3, 10:45 AM ESTFLASH FLOOD1 Se Boone, NCSWIFT WATER RESCUE OCCURRED ON MEADOW VIEW RD.
Feb 3, 10:50 AM ESTFLASH FLOODFoscoe, NCWATER FLOWING ACROSS THE FOLLOWING ROADS IN FOSCOE...CHURCHES HOLLOW...SHAWS MILL...BAMBOO AND DEWITT BARNETT ROADS.
Feb 3, 12:00 PM ESTFLASH FLOOD4 Ne Boone, NCNEW RIVER OVERRUNNING NEW RIVER HILL AND ROBY GREENE RD. TIME ESTIMATED VIA REPORT.
Feb 3, 3:00 PM ESTHEAVY RAIN 2.473 Ene Glade Valley, NCCOCORAHS OBSERVER REPORTS RAINFALL AMOUNTS OF 2.47 INCHES RESULTING IN MINOR FLOODING ALONG BRUSH CREEK BRIDGE ON SCENIC VALLEY ROAD.
Feb 3, 3:17 PM ESTHEAVY RAIN 2.392 Ne Sparta, NCTOTAL 2.39 INCHES MEASURED.

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, 1.7 hours before the alert went out and 145 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 12:00Z on 2016-02-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 12:00Z on 2016-02-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 411 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
500 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
411 m²/s²
0-3 km storm-relative helicity
494 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

667 
WGUS51 KRNK 031342
FFWRNK
NCC005-009-189-032045-
/O.NEW.KRNK.FF.W.0001.160203T1342Z-160203T2045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BLACKSBURG VA
842 AM EST WED FEB 3 2016

THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  ASHE COUNTY IN NORTHWESTERN NORTH CAROLINA...
  WATAUGA COUNTY IN NORTHWESTERN NORTH CAROLINA...
  ALLEGHANY COUNTY IN NORTHWESTERN NORTH CAROLINA...

* UNTIL 345 PM EST WEDNESDAY

* AT 841 AM EST...DOPPLER RADAR AND AUTOMATED RAIN GAUGES INDICATED
  HEAVY RAIN FALLING ACROSS THE WARNED AREA. UP TO TWO INCHES OF
  RAIN HAVE ALREADY FALLEN. FLASH FLOODING IS EXPECTED TO BEGIN
  SHORTLY AS ADDED HEAVY RAIN PASSES ACROSS THE REGION.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  BOONE...
  SPARTA...
  JEFFERSON...
  WEST JEFFERSON...
  AND BLOWING ROCK. 

THIS INCLUDES APPALACHIAN STATE UNIVERSITY.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.

TURN AROUND...DONT DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

WHEN IT IS SAFE TO DO SO...PLEASE SEND YOUR REPORTS OF FLOODING...
INCLUDING MUDSLIDES OR ROAD CLOSURES...TO THE NATIONAL WEATHER
SERVICE BY CALLING TOLL FREE AT 1...8 6 6...2 1 5...4 3 2 4. REPORTS
AND PICTURES CAN ALSO BE SHARED ON THE NATIONAL WEATHER SERVICE
BLACKSBURG FACEBOOK PAGE AND ON TWITTER.

&&

LAT...LON 3634 8185 3634 8171 3641 8174 3659 8168
      3656 8090 3645 8098 3637 8098 3643 8108
      3643 8117 3636 8126 3637 8136 3629 8137
      3629 8141 3625 8147 3619 8146 3612 8154
      3611 8181 3616 8183 3621 8191 3629 8192

$$

JH
4 follow-up statements
917 
WGUS71 KRNK 031524
FFSRNK

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
1024 AM EST WED FEB 3 2016

NCC005-009-189-032045-
/O.CON.KRNK.FF.W.0001.000000T0000Z-160203T2045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ASHE NC-WATAUGA NC-ALLEGHANY NC-
1024 AM EST WED FEB 3 2016

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 345 PM EST
WEDNESDAY FOR
ASHE...WATAUGA AND ALLEGHANY COUNTIES...

AT 1021 AM EST...DOPPLER RADAR AND AUTOMATED RAIN GAUGES INDICATED
THAT HEAVY RAIN WAS FALLING OVER THE AREA. UP TO TWO INCHES OF RAIN
HAVE ALREADY FALLEN RESULTING IN MINOR FLOODING OF TYPICAL FLOOD
PRONE AREAS NEAR THE BOONE MALL AND A FEW LOW WATER CROSSINGS.
HOWEVER ADDED FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY AS HEAVY
RAINFALL CONTINUES TO TRAIN ACROSS THE REGION INTO EARLY THIS
AFTERNOON.

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
BOONE...
SPARTA...
JEFFERSON...
WEST JEFFERSON...
AND BLOWING ROCK. 

THIS INCLUDES APPALACHIAN STATE UNIVERSITY.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.

TURN AROUND...DONT DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

WHEN IT IS SAFE TO DO SO...PLEASE SEND YOUR REPORTS OF FLOODING...
INCLUDING MUDSLIDES OR ROAD CLOSURES...TO THE NATIONAL WEATHER
SERVICE BY CALLING TOLL FREE AT 1...8 6 6...2 1 5...4 3 2 4. REPORTS
AND PICTURES CAN ALSO BE SHARED ON THE NATIONAL WEATHER SERVICE
BLACKSBURG FACEBOOK PAGE AND ON TWITTER.

&&

LAT...LON 3634 8185 3634 8171 3641 8174 3659 8168
      3656 8090 3645 8098 3637 8098 3643 8108
      3643 8117 3636 8126 3637 8136 3629 8137
      3629 8141 3625 8147 3619 8146 3612 8154
      3611 8181 3616 8183 3621 8191 3629 8192

$$

JH
323 
WGUS71 KRNK 031638
FFSRNK

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
1138 AM EST WED FEB 3 2016

NCC005-009-189-032045-
/O.CON.KRNK.FF.W.0001.000000T0000Z-160203T2045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ASHE NC-WATAUGA NC-ALLEGHANY NC-
1138 AM EST WED FEB 3 2016

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 345 PM EST
WEDNESDAY FOR
ASHE...WATAUGA AND ALLEGHANY COUNTIES...

AT 1134 AM EST...DOPPLER RADAR AND AUTOMATED RAIN GAUGES INDICATED
THAT HEAVY RAIN CONTINUED TO FALL OVER THE AREA. UP TO TWO INCHES OF
RAIN HAVE ALREADY FALLEN RESULTING IN FLOODING AROUND THE BOONE MALL
AS WELL AS SEVERAL ROAD CLOSURES ACROSS WATAUGA COUNTY. THE WATAUGA
RIVER AT SUGAR GROVE WAS AT 6.4 AT 1130 AM. FLOOD STAGE IS 6.0 FEET.
ADDITIONAL RAINFALL COMBINED WITH RUNOFF WILL CONTINUE TO RESULT IN
ADDITIONAL FLOODING OVER WATAUGA COUNTY. FLOODING OR FLASH FLOODING
MAY ALSO DEVELOP ACROSS PARTS OF ASHE AND ALLEGHANY COUNTIES EARLY
THIS AFTERNOON.

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
BOONE...
SPARTA...
JEFFERSON...
WEST JEFFERSON...
AND BLOWING ROCK. 

THIS INCLUDES APPALACHIAN STATE UNIVERSITY.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.

TURN AROUND...DONT DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

WHEN IT IS SAFE TO DO SO...PLEASE SEND YOUR REPORTS OF FLOODING...
INCLUDING MUDSLIDES OR ROAD CLOSURES...TO THE NATIONAL WEATHER
SERVICE BY CALLING TOLL FREE AT 1...8 6 6...2 1 5...4 3 2 4. REPORTS
AND PICTURES CAN ALSO BE SHARED ON THE NATIONAL WEATHER SERVICE
BLACKSBURG FACEBOOK PAGE AND ON TWITTER.

&&

LAT...LON 3634 8185 3634 8171 3641 8174 3659 8168
      3656 8090 3645 8098 3637 8098 3643 8108
      3643 8117 3636 8126 3637 8136 3629 8137
      3629 8141 3625 8147 3619 8146 3612 8154
      3611 8181 3616 8183 3621 8191 3629 8192

$$

JH
610 
WGUS71 KRNK 031845
FFSRNK

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
145 PM EST WED FEB 3 2016

NCC005-009-189-032045-
/O.CON.KRNK.FF.W.0001.000000T0000Z-160203T2045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ASHE NC-WATAUGA NC-ALLEGHANY NC-
145 PM EST WED FEB 3 2016

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 345 PM EST
WEDNESDAY FOR
ASHE...WATAUGA AND ALLEGHANY COUNTIES...

AT 142 PM EST...DOPPLER RADAR INDICATED THAT RAINFALL WAS SLOWLY
TAPERING OFF ACROSS THE AREA. HOWEVER RUNOFF FROM EARLIER HEAVY RAIN
WILL CAUSE STREAM AND CREEKS TO REMAIN FLOODED THIS AFTERNOON. THE
STAGE AT SUGAR GROVE ON THE WATAUGA RIVER WAS OVER 9 FEET AND STILL
RISING. FLOOD STAGE IS 6 FEET. IN ADDITION...SEVERAL ROADS REMAIN
CLOSED ACROSS THE REGION AND WILL LIKELY REMAIN SO INTO MID
AFTERNOON.

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
BOONE...
SPARTA...
JEFFERSON...
WEST JEFFERSON...
AND BLOWING ROCK. 

THIS INCLUDES APPALACHIAN STATE UNIVERSITY.
 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.

TURN AROUND...DONT DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

WHEN IT IS SAFE TO DO SO...PLEASE SEND YOUR REPORTS OF FLOODING...
INCLUDING MUDSLIDES OR ROAD CLOSURES...TO THE NATIONAL WEATHER
SERVICE BY CALLING TOLL FREE AT 1...8 6 6...2 1 5...4 3 2 4. REPORTS
AND PICTURES CAN ALSO BE SHARED ON THE NATIONAL WEATHER SERVICE
BLACKSBURG FACEBOOK PAGE AND ON TWITTER.

&&

LAT...LON 3634 8185 3634 8171 3641 8174 3659 8168
      3656 8090 3645 8098 3637 8098 3643 8108
      3643 8117 3636 8126 3637 8136 3629 8137
      3629 8141 3625 8147 3619 8146 3612 8154
      3611 8181 3616 8183 3621 8191 3629 8192

$$

JH
104 
WGUS71 KRNK 032050
FFSRNK

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
350 PM EST WED FEB 3 2016

NCC005-009-189-032057-
/O.EXP.KRNK.FF.W.0001.000000T0000Z-160203T2045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ASHE NC-WATAUGA NC-ALLEGHANY NC-
350 PM EST WED FEB 3 2016

...THE FLASH FLOOD WARNING FOR ASHE...WATAUGA AND ALLEGHANY COUNTIES
HAS EXPIRED...

THE FLASH FLOOD WARNING WAS REPLACED WITH FLOOD WARNING FOR FLOODING
OF SMALL CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES IN URBAN
AREAS. FLOOD WATERS ARE RECEDING...AND ARE NO LONGER EXPECTED TO
POSE A THREAT TO LIFE OR PROPERTY. PLEASE CONTINUE TO HEED ANY ROAD
CLOSURES.

WHEN IT IS SAFE TO DO SO...PLEASE SEND YOUR REPORTS OF FLOODING...
INCLUDING MUDSLIDES OR ROAD CLOSURES...TO THE NATIONAL WEATHER
SERVICE BY CALLING TOLL FREE AT 1...8 6 6...2 1 5...4 3 2 4. REPORTS
AND PICTURES CAN ALSO BE SHARED ON THE NATIONAL WEATHER SERVICEFLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES IN URBAN AREAS.
BLACKSBURG FACEBOOK PAGE AND ON TWITTER.

LAT...LON 3634 8185 3634 8171 3641 8174 3659 8168
      3656 8090 3645 8098 3637 8098 3643 8108
      3643 8117 3636 8126 3637 8136 3629 8137
      3629 8141 3625 8147 3619 8146 3612 8154
      3611 8181 3616 8183 3621 8191 3629 8192

$$

KK

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 3, 4:00 AM ESTFlash Flood WatchRNKAlleghany, Ashe, Surry, Watauga, Wilkes11 hr
Feb 3, 10:45 AM ESTAreal Flood AdvisoryRNKStokes, Surry, Wilkes, Yadkin5 hr
Feb 3, 12:03 PM ESTAreal Flood AdvisoryRNKStokes, Yadkin4 hr
Feb 3, 12:21 PM ESTSpecial Weather StatementRNKRockingham24 min
Feb 3, 12:46 PM ESTSpecial Weather StatementRNKRockingham29 min
Feb 3, 1:15 PM ESTSpecial Weather StatementRNKCaswell30 min
Feb 3, 1:51 PM ESTSpecial Weather StatementRNKCaswell39 min
Feb 3, 2:31 PM ESTSpecial Weather StatementRNKCaswell59 min
Feb 3, 3:47 PM ESTAreal Flood WarningRNKAlleghany, Ashe, Watauga6 hr
Feb 3, 5:19 PM ESTAreal Flood WarningRNKSurry, Yadkin3 hr

Nearby

Flash Flood Warnings in North Carolina, 2016Every flash flood warning in 2016

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.