Alert archive / North Carolina / Flash Flood Warnings in 2012
Flash Flood Warning 18, NWS Blacksburg, VA
NWS Blacksburg, VA issued this flash flood warning at May 14, 2012, 7:04 PM EDT for Yadkin 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
- May 14, 2012, 7:04 PM EDT (23:04 UTC)
- Expired
- May 15, 2012, 1:00 AM EDT
- In force
- 6 hr
- Issued by
- NWS Blacksburg, VA
- Area
- Storm-based polygon
- Flood severity
- None
County Yadkin County, NC
The radar
The Roanoke radar (KFCX), 107 km from the middle of the area, began a volume at 23:05 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, 11.1 hours before the alert went out and 66 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
- 26 J/kg
- Mixed-layer CIN
- -122 J/kg
- Mixed-layer LCL
- 713 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 100 m²/s²
- 0-3 km storm-relative helicity
- 160 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
WGUS51 KRNK 142304
FFWRNK
NCC197-150500-
/O.NEW.KRNK.FF.W.0018.120514T2304Z-120515T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BLACKSBURG VA
704 PM EDT MON MAY 14 2012
THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A
* FLASH FLOOD WARNING FOR...
SOUTH CENTRAL YADKIN COUNTY IN NORTHWEST NORTH CAROLINA
* UNTIL 100 AM EDT.
* AT 700 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 YADKINVILLE
AND SHACKTOWN.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. MOVE TO HIGHER GROUND.
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 3613 8074 3616 8060 3612 8052 3609 8052
3608 8057 3605 8061 3605 8074
$$
DS1 follow-up statement
822
WGUS71 KRNK 150022
FFSRNK
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
822 PM EDT MON MAY 14 2012
NCC197-150500-
/O.CON.KRNK.FF.W.0018.000000T0000Z-120515T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
YADKIN NC-
822 PM EDT MON MAY 14 2012
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 100 AM EDT FOR
SOUTHERN YADKIN COUNTY...
AT 817 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
LIGHT TO MODERATE RAIN FALLING OVER THE WARNED AREA. THIS ADDITIONAL
RAIN WILL SLOW THE RATE WHICH WATER FROM EARLIER HEAVY RAINS RECEDE.
LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO YADKINVILLE
AND SHACKTOWN
PRECAUTIONARY/PREPAREDNESS ACTIONS...
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE
UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS
SUBJECT TO FLOODING WHEN WATER BEGINS RISING.
&&
LAT...LON 3613 8074 3616 8060 3612 8052 3609 8052
3608 8057 3605 8061 3605 8074
$$
DSThe office that day
Everything else NWS Blacksburg, VA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 14, 4:30 PM EDT | Special Weather Statement | RNK | Yadkin | 30 min |
| May 14, 4:38 PM EDT | Special Weather Statement | RNK | Watauga | 37 min |
| May 14, 5:05 PM EDT | Special Weather Statement | RNK | Wilkes | 25 min |
| May 14, 5:21 PM EDT | Flash Flood Warning | RNK | Wilkes | 6 hr |
| May 14, 5:35 PM EDT | Severe Thunderstorm Warning | RNK | Wilkes | 39 min |
| May 14, 5:53 PM EDT | Severe Thunderstorm Warning | RNK | Wilkes | 34 min |
| May 14, 6:16 PM EDT | Severe Thunderstorm Warning | RNK | Wilkes, Yadkin | 59 min |
| May 14, 6:20 PM EDT | Flash Flood Watch | RNK | Stokes, Surry, Wilkes, Yadkin | 11 hr |
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.