Alert archive / Virginia / Flash Flood Warnings in 2006

Flash Flood Warning 21, NWS Blacksburg, VA

July 5, 2006Rockbridge County, Virginia

NWS Blacksburg, VA issued this flash flood warning at Jul 5, 2006, 4:22 PM EDT for Rockbridge County, Virginia. 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: Jul 5, 2006, 4:22 PM EDT (20:22 UTC)
Expired: Jul 5, 2006, 10:15 PM EDT
In force: 6 hr
Issued by: NWS Blacksburg, VA
Area: Counties, with a storm outline in the text

County Rockbridge County, VA

The radar

The Roanoke radar (KFCX), 123 km from the middle of the area, began a volume at 20:24 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 12:00Z, 8.4 hours before the alert went out and 75 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 353 J/kg
Mixed-layer CIN: -88 J/kg
Mixed-layer LCL: 877 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 22 m²/s²
0-3 km storm-relative helicity: 40 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WGUS51 KRNK 052026
FFWRNK
VAC163-060215-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BLACKSBURG VA
422 PM EDT WED JUL 5 2006

THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHEASTERN ROCKBRIDGE COUNTY IN WEST CENTRAL VIRGINIA

* UNTIL 1015 PM EDT

* AT 420 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  VERY HEAVY RAIN FROM THUNDERSTORMS MOVING BACK INTO THE WARNED 
  AREA.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO VESUVIUS...
  ROCKBRIDGE BATHS...FAIRFIELD...CORNWALL AND BROWNSBURG

EXCESSIVE RUNOFF FROM PREVIOUS HEAVY RAINS...COMBINING WITH 
ADDITIONAL HEAVY RAIN EXPECTED FOR THE REST OF THIS AFTERNOON INTO 
THIS EVENING...WILL RESULT IN FLOODING OF SMALL CREEKS AND 
STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE BANKS OF 
CREEKS AND STREAMS. 

FLOODING WILL BE MOST PRONOUNCED NORTHEAST OF LEXINGTON AND BUENA 
VISTA...WHERE UP TO 3 INCHES OF RAIN FELL EARLIER THIS AFTERNOON. 
GROUND CONDITIONS ARE SATURATED...AND WATER LEVELS ARE ALREADY 
HIGH...SO ANY ADDITIONAL HEAVY RAIN WILL RESULT IN FLASH FLOODING IN 
THE WARNED AREA.  

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. REMEMBER TURN AROUND...DONT DROWN.

PLEASE RELAY REPORTS OF FLOODING TO THE NATIONAL WEATHER SERVICE BY
CALLING TOLL FREE...1...8 6 6...2 1 5...4 3 2 4.

LAT...LON 3784 7951 3775 7933 3789 7916 3803 7939

$$

WERT

1 follow-up statement

000 
WGUS71 KRNK 052238
FFSRNK

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
635 PM EDT WED JUL 5 2006

VAC163-052255-
ROCKBRIDGE VA-
635 PM EDT WED JUL 5 2006

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR NORTHEASTERN
ROCKBRIDGE COUNTY...

AT 635 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
THAT THE THREAT OF PROLONGED HEAVY RAIN HAD ENDED ACROSS THE AREA... 
THEREFORE THE FLASH FLOOD WARNING THAT HAD BEEN IN EFFECT FOR 
NORTHEASTERN ROCKBRIDGE COUNTY UNTIL 1015 PM EDT HAS BEEN CANCELLED.

LAT...LON 3784 7951 3775 7933 3789 7916 3803 7939

$$

WERT

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 5, 1:14 AM EDT	Severe Thunderstorm Warning	RNK	Halifax	73 min
Jul 5, 4:18 AM EDT	Flash Flood Watch	RNK	Appomattox, Bedford, Bland, Buckingham, Campbell, Carroll and 22 more	23 hr
Jul 5, 2:47 PM EDT	Flash Flood Warning	RNK	Amherst, Bedford, City of Lynchburg	6 hr
Jul 5, 2:57 PM EDT	Flash Flood Warning	RNK	Montgomery	4 hr

Nearby

Flash Flood Warnings in Virginia, 2006 Every flash flood warning in 2006

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.