Alert archive / North Carolina / Flash Flood Warnings in 2012
Flash Flood Warning 44, NWS Blacksburg, VA
NWS Blacksburg, VA issued this flash flood warning at Aug 3, 2012, 6:59 PM EDT for Rockingham County, North Carolina. 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
- Aug 3, 2012, 6:59 PM EDT (22:59 UTC)
- Expired
- Aug 3, 2012, 9:56 PM EDT
- In force
- 3 hr
- Issued by
- NWS Blacksburg, VA
- Area
- Storm-based polygon
- Flood severity
- None
County Rockingham County, NC
The radar
The Roanoke radar (KFCX), 83 km from the middle of the area, began a volume at 23:00 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, 11.0 hours before the alert went out and 48 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
- 967 J/kg
- Mixed-layer CIN
- -71 J/kg
- Mixed-layer LCL
- 626 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 6 m²/s²
- 0-3 km storm-relative helicity
- 7 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.4
The text
As transmitted, in the capitals the NWS used until 2016.
004
WGUS51 KRNK 032259
FFWRNK
NCC157-040500-
/O.NEW.KRNK.FF.W.0044.120803T2259Z-120804T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BLACKSBURG VA
659 PM EDT FRI AUG 3 2012
THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A
* FLASH FLOOD WARNING FOR...
NORTHEASTERN ROCKINGHAM COUNTY IN NORTH CENTRAL NORTH CAROLINA
* UNTIL 100 AM EDT SATURDAY.
* AT 651 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
VERY HEAVY RAIN FROM THUNDERSTORMS OVER THE WARNED AREA.
* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO RUFFIN...
OREGON HILL...MAYFIELD AND HARRISONS CROSSROADS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
RAINFALL UP TO 2 INCHES HAS FALLEN ACROSS THIS AREA...AND ADDITIONAL
RAINFALL AMOUNTS UP TO 2 INCHES ARE LIKELY IN THE WARNED AREA AS
ADDITIONAL THUNDERSTORMS DEVELOP BACK TO THE SOUTHWEST AND MOVE
ACROSS THIS REGION. SOME ROADS IN THE AREA ALREADY HAVE CONSIDERABLE
AMOUNTS OF WATER ON THEM. CREEKS AND STREAMS IN THE REGION ARE
RUNNING AT OR ABOVE BANKFULL.
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.
A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.
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 3645 7984 3655 7959 3654 7952 3653 7951
3641 7952 3633 7979
$$
RAB2 follow-up statements
918
WGUS71 KRNK 032351
FFSRNK
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
751 PM EDT FRI AUG 3 2012
NCC157-040500-
/O.CON.KRNK.FF.W.0044.000000T0000Z-120804T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ROCKINGHAM NC-
751 PM EDT FRI AUG 3 2012
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 100 AM EDT FOR
NORTHEASTERN ROCKINGHAM COUNTY...
AT 747 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE THUNDERSTORMS PERSISTING ACROSS THE WARNED AREA PRODUCING
VERY HEAVY RAIN.
LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
MAYFIELD...HARRISONS CROSSROADS...WENTWORTH...AND RUFFIN. NATIONAL
WEATHER SERVICE DOPPLER RADAR INDICATES THAT UP TO 3 INCHES OF RAIN
HAS FALLEN ACROSS PARTS OF THE WARNED AREA...ESPECIALLY BETWEEN
WENTWORTH AND HARRISONS CROSSROADS. THERE HAVE BEEN REPORTS OF ROAD
AND STREET FLOODING FROM THESE AREAS. CREEKS AND STREAMS ARE AT OR
ABOVE BANKFUL. ADDITIONAL THUNDERSTORMS WITH VERY HEAVY RAIN WERE
MOVING FROM SOUTHWEST TO NORTHEAST ACROSS THE WARNED AREA. AN
ADDITIONAL 2 INCHES OF RAIN IS POSSIBLE IN THE WARNED AREA DURING
THE NEXT 1 TO 2 HOURS...WHICH WILL RESULT IN EXCESSIVE RUNOFF AND
FLASH FLOODING.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. MOVE TO HIGHER GROUND.
A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.
&&
LAT...LON 3645 7984 3655 7959 3654 7952 3653 7951
3641 7952 3633 7979
$$
RAB628
WGUS71 KRNK 040156
FFSRNK
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
956 PM EDT FRI AUG 3 2012
NCC157-040203-
/O.CAN.KRNK.FF.W.0044.000000T0000Z-120804T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ROCKINGHAM NC-
956 PM EDT FRI AUG 3 2012
...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR NORTHEASTERN
ROCKINGHAM COUNTY...
THE HEAVY RAIN AND THUNDERSTORMS THAT EARLIER PROMPTED THE FLASH
FLOOD WARNING FOR THIS AREA HAVE ENDED. ADDITIONAL HEAVY RAIN IS NOT
INDICATED AT THIS TIME. RAINFALL OF 2 TO 3 INCHES FELL ACROSS THE
EASTERN PART OF THE COUNTY...ESPECIALLY BETWEEN REIDSVILLE AND
WENTWORTH. SMALL CREEKS AND STREAMS IN THIS PORTION OF THE COUNTY
LIKELY REMAIN NEAR BANKFULL...BUT SHOULD CONTINUE TO FALL DURING THE
REMAINDER OF THE NIGHT. THUS...THE FLASH FLOOD WARNING HAS BEEN
CANCELLED.
IF YOU OBSERVED ANY FLOODING THIS EVENING..PLEASE RELAY YOUR REPORTS
OF FLOODING TO THE NATIONAL WEATHER SERVICE IN BLACKSBURG BY CALLING
TOLL FREE...1...8 6 6...2 1 5...4 3 2 4.
LAT...LON 3645 7984 3655 7959 3654 7952 3653 7951
3641 7952 3633 7979
$$
RABThe office that day
Everything else NWS Blacksburg, VA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 3, 6:50 PM EDT | Special Weather Statement | RNK | Rockingham | 55 min |
| Aug 3, 7:27 PM EDT | Severe Thunderstorm Warning | RNK | Rockingham | 48 min |
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.