Alert archive / Virginia / Flash Flood Warnings in 2015
Flash Flood Warning 21, NWS Blacksburg, VA
NWS Blacksburg, VA issued this flash flood warning at Aug 18, 2015, 7:31 PM EDT for Patrick County, Virginia. It was in force for 5 hr. 2 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
- Aug 18, 2015, 7:31 PM EDT (23:31 UTC)
- Expired
- Aug 19, 2015, 12:30 AM EDT
- In force
- 5 hr
- Issued by
- NWS Blacksburg, VA
- Area
- Storm-based polygon
- Flood severity
- None
County Patrick County, VA
The radar
The Roanoke radar (KFCX), 41 km from the middle of the area, began a volume at 23:31 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
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 18, 8:05 PM EDT | FLASH FLOOD | 3 Se Meadows Of Dan, VA | WATER FROM BIG CHERRY CREEK FLOODED SHOTGUN ROAD. THE DEPTH OF THE WATER WAS ESTIMATED TO BE AT LEAST A FOOT DEEP. |
| Aug 18, 8:35 PM EDT | FLASH FLOOD | 3 Ese Meadows Of Dan, VA | AN ESTIMATED 6 TO 8 INCHES OF WATER FLOWING ACROSS HIGHWAY 58 WHERE IT CROSSES BIG IVY CREEK. |
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, 11.5 hours before the alert went out and 82 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
- 40 J/kg
- Mixed-layer CIN
- -83 J/kg
- Mixed-layer LCL
- 1043 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 21 m²/s²
- 0-3 km storm-relative helicity
- 29 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
235
WGUS51 KRNK 182331
FFWRNK
VAC141-190430-
/O.NEW.KRNK.FF.W.0021.150818T2331Z-150819T0430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BLACKSBURG VA
731 PM EDT TUE AUG 18 2015
THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A
* FLASH FLOOD WARNING FOR...
CENTRAL PATRICK COUNTY IN SOUTHWESTERN VIRGINIA...
* UNTIL 1230 AM EDT
* AT 730 PM EDT...DOPPLER RADAR INDICATED HEAVY RAIN ACROSS THE
WARNED AREA. UP TO THREE INCHES OF RAIN HAVE ALREADY FALLEN. FLASH
FLOODING IS EXPECTED TO BEGIN SHORTLY.
* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
AND STUART.
ADDITIONAL RAINFALL AMOUNTS OF ONE TO TWO INCHES ARE POSSIBLE IN THE
WARNED AREA.
THIS INCLUDES THE FOLLOWING STREAMS AND DRAINAGES...
IVY CREEK...
HOOKERS CREEK...
SQUALL CREEK...
AND TUGGLE CREEK...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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 3664 8050 3665 8049 3667 8049 3667 8047
3670 8045 3671 8046 3673 8045 3674 8028
3663 8027
$$
PH2 follow-up statements
162
WGUS71 KRNK 190049
FFSRNK
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
849 PM EDT TUE AUG 18 2015
VAC141-190430-
/O.CON.KRNK.FF.W.0021.000000T0000Z-150819T0430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
PATRICK VA-
849 PM EDT TUE AUG 18 2015
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1230 AM EDT FOR
CENTRAL PATRICK COUNTY...
AT 843 PM EDT...THE PUBLIC REPORTED RAINFALL OVER 4.5 INCHES SOUTH
OF MEADOWS OF DAN. THIS HAS RESULTED FLOODING OF SMALL STREAMS AND
CREEKS...INCLUDING BIG CHERRY CREEK. RUNOFF FROM THIS HEAVY
RAIN IS EXPECTED TO BRING ADDITIONAL FLASH FLOODING THIS EVENING.
SHOWERS AND THUNDERSTORMS WITH HEAVY RAIN ARE MOVING NORTH AND
ADDITIONAL RAINFALL AMOUNTS OF ONE-HALF INCH OR LESS ARE EXPECTED IN
THE WARNED AREA.
SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
AREAS BETWEEN MEADOWS OF DAN AND STUART.
THIS INCLUDES THE FOLLOWING STREAMS AND DRAINAGES...
IVY CREEK...
HOOKERS CREEK...
SQUALL CREEK...
TUGGLE CREEK...
BIG CHERRY CREEK.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TURN AROUND...DONT DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.
WHEN IT IS SAFE TO DO SO...PLEASE SEND YOUR REPORTS OF FLOODING...
INCLUDING MUDSLIDES OR ROAD CLOSURES...TO THE NATIONAL WEATHER
SERVICE BY CALLING TOLL FREE AT 1...8 6 6...2 1 5...4 3 2 4. REPORTS
AND PICTURES CAN ALSO BE SHARED ON THE NATIONAL WEATHER SERVICE
BLACKSBURG FACEBOOK PAGE AND ON TWITTER.
&&
LAT...LON 3664 8050 3665 8049 3667 8049 3667 8047
3670 8045 3671 8046 3673 8045 3674 8028
3663 8027
$$
PH943
WGUS71 KRNK 190424
FFSRNK
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
1224 AM EDT WED AUG 19 2015
VAC141-190433-
/O.EXP.KRNK.FF.W.0021.000000T0000Z-150819T0430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
PATRICK VA-
1224 AM EDT WED AUG 19 2015
...THE FLASH FLOOD WARNING FOR CENTRAL PATRICK COUNTY WILL EXPIRE AT
1230 AM EDT...
THE HEAVY RAIN HAS ENDED...AND FLOODING IS NO LONGER EXPECTED TO POSE
A THREAT.
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 3664 8050 3665 8049 3667 8049 3667 8047
3670 8045 3671 8046 3673 8045 3674 8028
3663 8027
$$
07The office that day
Everything else NWS Blacksburg, VA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 18, 2:27 PM EDT | Special Weather Statement | RNK | Halifax, City of Danville | 63 min |
| Aug 18, 2:40 PM EDT | Special Weather Statement | RNK | Craig, Roanoke | 65 min |
| Aug 18, 2:45 PM EDT | Special Weather Statement | RNK | City of Roanoke | 60 min |
| Aug 18, 3:13 PM EDT | Special Weather Statement | RNK | Appomattox, Buckingham | 62 min |
| Aug 18, 3:34 PM EDT | Special Weather Statement | RNK | Botetourt | 56 min |
| Aug 18, 4:20 PM EDT | Special Weather Statement | RNK | Alleghany | 55 min |
| Aug 18, 4:27 PM EDT | Special Weather Statement | RNK | Bedford | 63 min |
| Aug 18, 4:37 PM EDT | Special Weather Statement | RNK | Rockbridge, City of Lexington | 53 min |
| Aug 18, 6:09 PM EDT | Special Weather Statement | RNK | Patrick | 51 min |
| Aug 18, 6:28 PM EDT | Areal Flood Advisory | RNK | Patrick | 3 hr |
Nearby
Flash Flood Warnings in Virginia, 2015Every flash flood warning in 2015
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.