Alert archive / Virginia / Flash Flood Warnings in 2012
Flash Flood Warning 5, NWS Morristown, TN
NWS Morristown, TN issued this flash flood warning at Apr 3, 2012, 4:39 PM EDT for Lee County, Virginia. It was in force for 3 hr. 1 report 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
- Apr 3, 2012, 4:39 PM EDT (20:39 UTC)
- Expired
- Apr 3, 2012, 7:45 PM EDT
- In force
- 3 hr
- Issued by
- NWS Morristown, TN
- Area
- Storm-based polygon
- Flood severity
- None
County Lee County, VA
The radar
The Knoxville radar (KMRX), 70 km from the middle of the area, began a volume at 20:41 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 |
|---|---|---|---|
| Apr 3, 7:00 PM EDT | FLASH FLOOD | Jonesville, VA | CUNNINGHAM STREET CLOSED DUE TO HIGH WATER. |
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, 8.7 hours before the alert went out and 296 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1108 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 75 m²/s²
- 0-3 km storm-relative helicity
- 237 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
320
WGUS54 KMRX 032039
FFWMRX
VAC105-032345-
/O.NEW.KMRX.FF.W.0005.120403T2039Z-120403T2345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MORRISTOWN TN
439 PM EDT TUE APR 3 2012
THE NATIONAL WEATHER SERVICE IN MORRISTOWN HAS ISSUED A
* FLASH FLOOD WARNING FOR...
LEE COUNTY IN SOUTHWEST VIRGINIA...
* UNTIL 745 PM EDT
* AT 433 PM EDT...DOPPLER RADAR INDICATED SLOW MOVING THUNDERSTORMS
NEAR BEN HUR...WHICH HAVE PRODUCED AROUND THREE INCHES OF RAIN IN THE
PAST HOUR. ADDITIONAL RAINFALL AMOUNTS AROUND AN INCH OR TWO WILL BE
POSSIBLE IN THE NEXT COUPLE OF HOURS. RAINFALL OF THIS MAGNITUDE
WILL LIKELY CAUSE FLOODING OF ROADWAYS AND LOW LYING AREAS.
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.
&&
LAT...LON 3679 8283 3664 8299 3670 8335 3671 8335
3675 8320 3675 8315 3678 8314 3682 8310
$$
DMG1 follow-up statement
018
WGUS74 KMRX 032133
FFSMRX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MORRISTOWN TN
533 PM EDT TUE APR 3 2012
VAC105-032345-
/O.CON.KMRX.FF.W.0005.000000T0000Z-120403T2345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LEE VA-
533 PM EDT TUE APR 3 2012
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 745 PM FOR LEE
COUNTY...
AT 530 PM...DOPPLER RADAR REVEALED LIGHT TO MODERATE RAIN OVER THE
WARNED AREA. HOWEVER...RUNOFF FROM EARLIER RAINFALL WILL CONTINUE TO
PRODUCE FLOODING FOR THE NEXT FEW HOURS...ESPECIALLY AROUND THE TOWN
OF BEN HUR.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. MOVE TO HIGHER GROUND.
&&
LAT...LON 3679 8283 3664 8299 3670 8335 3671 8335
3675 8320 3675 8315 3678 8314 3682 8310
$$
DMGThe office that day
Everything else NWS Morristown, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 3, 3:51 PM EDT | Severe Thunderstorm Warning | MRX | Lee | 24 min |
| Apr 3, 4:17 PM EDT | Severe Thunderstorm Warning | MRX | Wise, City of Norton | 28 min |
| Apr 3, 4:27 PM EDT | Areal Flood Advisory | MRX | Lee | 2 hr |
| Apr 3, 4:39 PM EDT | Severe Thunderstorm Warning | MRX | Scott | 36 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.