Alert archive / North Carolina / Flash Flood Warnings in 2012
Flash Flood Warning 10, NWS Blacksburg, VA
NWS Blacksburg, VA issued this flash flood warning at Mar 24, 2012, 6:05 PM EDT for Surry County, North Carolina. It was in force for 4 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
- Mar 24, 2012, 6:05 PM EDT (22:05 UTC)
- Expired
- Mar 24, 2012, 10:00 PM EDT
- In force
- 4 hr
- Issued by
- NWS Blacksburg, VA
- Area
- Storm-based polygon
- Flood severity
- None
County Surry County, NC
The radar
The Roanoke radar (KFCX), 72 km from the middle of the area, began a volume at 22:08 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, 10.1 hours before the alert went out and 79 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
- 226 J/kg
- Mixed-layer CIN
- -8 J/kg
- Mixed-layer LCL
- 526 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 167 m²/s²
- 0-3 km storm-relative helicity
- 153 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 0.5
The text
As transmitted, in the capitals the NWS used until 2016.
025
WGUS51 KRNK 242205
FFWRNK
NCC171-250400-
/O.NEW.KRNK.FF.W.0010.120324T2205Z-120325T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BLACKSBURG VA
605 PM EDT SAT MAR 24 2012
THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A
* FLASH FLOOD WARNING FOR...
SURRY COUNTY IN NORTH CENTRAL NORTH CAROLINA
* UNTIL MIDNIGHT EDT.
* AT 558 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
VERY HEAVY RAIN FROM A THUNDERSTORMS OVER THE WARNED AREA. RADAR
ESTIMATES THAT UP TO 2 TO 3 INCHES OF RAIN HAVE FALLEN ALONG THE
RIDGE...AND RUNOFF FROM THESE STORMS IS LIKELY TO CAUSE FLASH
FLOODING ALONG LOVILLS CREEK AND SMALLER STREAMS AND CREEKS FROM
THE MOUNT AIRY AREA...SOUTHWEST TOWARD DOBSON.
* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
WOODVILLE...TOAST...MOUNTAIN PARK...MOUNT AIRY...FLAT ROCK...
DOBSON...ARARAT AND WHITE PLAINS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY
DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL
ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED
ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.
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 8089 3643 8079 3656 8061 3655 8046
3655 8044 3654 8044 3634 8057 3633 8079
$$
WP2 follow-up statements
828
WGUS71 KRNK 250016
FFSRNK
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
816 PM EDT SAT MAR 24 2012
NCC171-250400-
/O.CON.KRNK.FF.W.0010.000000T0000Z-120325T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SURRY NC-
816 PM EDT SAT MAR 24 2012
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL MIDNIGHT EDT FOR
NORTHEASTERN SURRY COUNTY...
AT 813 PM EDT...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED THAT
LOVILLS CREEK WAS NEAR BANKFULL IN THE MOUNT AIRY AREA. HEAVIER RAIN
HAVE ENDED...BUT RUNOFF FROM THE STORMS EARLIER WILL KEEP FLOODING
GOING THIS EVENING ACROSS NORTHEASTERN SURRY COUNTY...ESPECIALLY
ALONG LOVILLS CREEK.
LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO WOODVILLE...
TOAST...MOUNT AIRY AND FLAT ROCK
PRECAUTIONARY/PREPAREDNESS ACTIONS...
EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE
BANKS OF CREEKS AND STREAMS.
MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY
DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL
ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED
ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.
&&
LAT...LON 3634 8077 3640 8076 3656 8061 3656 8057
3655 8057 3655 8044 3654 8044 3634 8057
$$
WP218
WGUS71 KRNK 250200
FFSRNK
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
1000 PM EDT SAT MAR 24 2012
NCC171-250209-
/O.CAN.KRNK.FF.W.0010.000000T0000Z-120325T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SURRY NC-
1000 PM EDT SAT MAR 24 2012
...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR NORTHEASTERN SURRY
COUNTY...
NO FLASH FLOODING HAS BEEN REPORTED...AND TORRENTIAL RAINS ARE
OVER...THEREFORE THE FLASH FLOOD WARNING HAS BEEN CANCELLED. A FLOOD
ADVISORY WILL BE ISSUED TO COVER ANY SMALL STREAMS AND CREEKS...SUCH
AS LOVILLS CREEK THAT WILL BE RISING TO NEAR BANKFULL THROUGH THE
NIGHT.
LAT...LON 3634 8077 3640 8076 3656 8061 3656 8057
3655 8057 3655 8044 3654 8044 3634 8057
$$
WPThe office that day
Everything else NWS Blacksburg, VA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 24, 12:24 PM EDT | Special Weather Statement | RNK | Alleghany | 51 min |
| Mar 24, 12:43 PM EDT | Special Weather Statement | RNK | Wilkes | 47 min |
| Mar 24, 12:48 PM EDT | Special Weather Statement | RNK | Stokes | 42 min |
| Mar 24, 1:30 PM EDT | Severe Thunderstorm Warning | RNK | Ashe | 60 min |
| Mar 24, 2:00 PM EDT | Severe Thunderstorm Warning | RNK | Alleghany, Surry | 60 min |
| Mar 24, 2:34 PM EDT | Severe Thunderstorm Warning | RNK | Alleghany, Ashe | 56 min |
| Mar 24, 2:34 PM EDT | Severe Thunderstorm Warning | RNK | Alleghany, Surry, Wilkes | 56 min |
| Mar 24, 2:44 PM EDT | Severe Thunderstorm Warning | RNK | Surry | 61 min |
| Mar 24, 2:52 PM EDT | Flash Flood Warning | RNK | Surry | 6 hr |
| Mar 24, 3:26 PM EDT | Severe Thunderstorm Warning | RNK | Alleghany, Surry | 64 min |
| Mar 24, 4:08 PM EDT | Severe Thunderstorm Warning | RNK | Stokes, Surry, Wilkes, Yadkin | 67 min |
| Mar 24, 4:31 PM EDT | Severe Thunderstorm Warning | RNK | Stokes, Surry, Yadkin | 44 min |
| Mar 24, 5:35 PM EDT | Severe Thunderstorm Warning | RNK | Surry | 55 min |
| Mar 24, 6:07 PM EDT | Severe Thunderstorm Warning | RNK | Stokes | 53 min |
| Mar 24, 6:16 PM EDT | Special Weather Statement | RNK | Alleghany | 29 min |
| Mar 24, 6:45 PM EDT | Severe Thunderstorm Warning | RNK | Caswell, Rockingham | 60 min |
| Mar 24, 7:39 PM EDT | Severe Thunderstorm Warning | RNK | Caswell | 81 min |
Nearby
Flash Flood Warnings in North Carolina, 2012Every flash flood warning in 2012
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.