Alert archive / Virginia / Flash Flood Warnings in 2012
Flash Flood Warning 33, NWS Blacksburg, VA
NWS Blacksburg, VA issued this flash flood warning at Jun 12, 2012, 8:13 PM EDT for Appomattox County, Campbell County, Virginia. It was in force for 3 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 12, 2012, 8:13 PM EDT (00:13 UTC)
- Expired
- Jun 12, 2012, 11:36 PM EDT
- In force
- 3 hr
- Issued by
- NWS Blacksburg, VA
- Area
- Storm-based polygon
- Flood severity
- None
Counties Appomattox County, VA, Campbell County, VA
The radar
The Roanoke radar (KFCX), 122 km from the middle of the area, began a volume at 00:13 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
Roanoke, VA (KRNK), launched 00:00Z, 0.2 hours before the alert went out and 50 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
- 726 J/kg
- Mixed-layer CIN
- -7 J/kg
- Mixed-layer LCL
- 1492 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- -15 m²/s²
- 0-3 km storm-relative helicity
- -11 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.4
The text
As transmitted, in the capitals the NWS used until 2016.
917
WGUS51 KRNK 130013
FFWRNK
VAC011-031-130615-
/O.NEW.KRNK.FF.W.0033.120613T0013Z-120613T0615Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BLACKSBURG VA
813 PM EDT TUE JUN 12 2012
THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A
* FLASH FLOOD WARNING FOR...
NORTHEASTERN CAMPBELL COUNTY IN CENTRAL VIRGINIA
SOUTHWESTERN APPOMATTOX COUNTY IN CENTRAL VIRGINIA
* UNTIL 215 AM EDT WEDNESDAY.
* AT 804 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
VERY HEAVY RAIN FROM A THUNDERSTORM OVER THE WARNED AREA. NAKED AND
REEDY CREEK AND PLUM BRANCH COULD BE OVERFLOWING THEIR BANKS AND
COVERING NEARBY ROADWAYS.
* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
STONEWALL...SPOUT SPRING AND CONCORD.
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.
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 3723 7878 3717 7897 3739 7909 3739 7907
3741 7906 3748 7894
$$
RCS1 follow-up statement
187
WGUS71 KRNK 130336
FFSRNK
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
1136 PM EDT TUE JUN 12 2012
VAC011-031-130346-
/O.CAN.KRNK.FF.W.0033.000000T0000Z-120613T0615Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CAMPBELL VA-APPOMATTOX VA-
1136 PM EDT TUE JUN 12 2012
...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR NORTHEASTERN
CAMPBELL AND SOUTHWESTERN APPOMATTOX COUNTIES...
HEAVY RAIN HAS ENDED OVER THE WARNED AREA...THUS THE FLASH FLOOD
WARNING HAS BEEN CANCELLED.
LAT...LON 3723 7878 3717 7897 3739 7909 3739 7907
3741 7906 3748 7894
$$
AMSThe office that day
Everything else NWS Blacksburg, VA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 12, 8:15 PM EDT | Special Weather Statement | RNK | Campbell | 60 min |
| Jun 12, 8:34 PM EDT | Special Weather Statement | RNK | Franklin | 56 min |
| Jun 12, 9:33 PM EDT | Severe Thunderstorm Warning | RNK | Patrick | 57 min |
| Jun 12, 10:14 PM EDT | Special Weather Statement | RNK | Halifax, Pittsylvania, City of Danville | 46 min |
| Jun 12, 10:26 PM EDT | Severe Thunderstorm Warning | RNK | Halifax, Pittsylvania | 64 min |
Nearby
Flash Flood Warnings in Virginia, 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.