Alert archive / North Carolina / Flash Flood Warnings in 2011
Flash Flood Warning 24, NWS Blacksburg, VA
NWS Blacksburg, VA issued this flash flood warning at May 14, 2011, 7:00 PM EDT for 4 counties in North Carolina; Carroll County, Grayson County, City of Galax, Virginia. It was in force for 4 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
- May 14, 2011, 7:00 PM EDT (23:00 UTC)
- Expired
- May 14, 2011, 11:17 PM EDT
- In force
- 4 hr
- Issued by
- NWS Blacksburg, VA
- Area
- Storm-based polygon
- Flood severity
- None
Counties Alleghany County, NC, Ashe County, NC, Surry County, NC, Wilkes County, NC, Carroll County, VA, City of Galax, VA, Grayson County, VA
The radar
The Roanoke radar (KFCX), 99 km from the middle of the area, began a volume at 23:01 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 122 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
- 473 J/kg
- Mixed-layer CIN
- -81 J/kg
- Mixed-layer LCL
- 735 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- -2 m²/s²
- 0-3 km storm-relative helicity
- 97 m²/s²
- Significant tornado parameter
- -0.0
- Supercell composite
- -0.0
The text
As transmitted, in the capitals the NWS used until 2016.
130
WGUS51 KRNK 142300
FFWRNK
NCC005-009-171-193-VAC035-077-640-150500-
/O.NEW.KRNK.FF.W.0024.110514T2300Z-110515T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BLACKSBURG VA
700 PM EDT SAT MAY 14 2011
THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A
* FLASH FLOOD WARNING FOR...
ALLEGHANY COUNTY IN NORTHWEST NORTH CAROLINA
SOUTHEASTERN ASHE COUNTY IN NORTHWEST NORTH CAROLINA
WESTERN SURRY COUNTY IN NORTH CENTRAL NORTH CAROLINA
WILKES COUNTY IN NORTHWEST NORTH CAROLINA
CITY OF GALAX IN SOUTHWEST VIRGINIA
EASTERN GRAYSON COUNTY IN SOUTHWEST VIRGINIA
WESTERN CARROLL COUNTY IN SOUTHWEST VIRGINIA
* UNTIL 100 AM EDT SUNDAY.
* AT 657 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 DOUGHTON
PARK...CUMBERLAND KNOB...STONE MOUNTAIN STATE PARK...BYLLESBY...
GALAX HILLSVILLE AIRPORT...SPRING VALLEY...INDEPENDENCE...FRIES...
ELK CREEK...COMERS ROCK...BRIDLE CREEK...BAYWOOD...GALAX CITY...
GLENDALE SPRINGS...LAUREL SPRINGS...WHITEHEAD...TWIN OAKS...
STRATFORD...SPARTA...SCOTTVILLE...ROARING GAP...PINEY CREEK.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY
ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW
LYING AREAS ARE SUBJECT TO FLOODING.
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.
EXCESSIVE RUNOFF FROM THESE STORMS WILL CAUSE FLASH FLOODING OF
CREEKS AND STREAMS...ROADS AND ROADSIDE CULVERTS. THE HEAVY RAIN
COULD ALSO CAUSE ROCK AND MUDSLIDES.
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 3611 8150 3675 8128 3677 8109 3680 8107
3685 8081 3605 8088
$$
KK2 follow-up statements
931
WGUS71 KRNK 150022
FFSRNK
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
822 PM EDT SAT MAY 14 2011
NCC005-009-171-193-VAC035-077-640-150500-
/O.CON.KRNK.FF.W.0024.000000T0000Z-110515T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ALLEGHANY NC-ASHE NC-SURRY NC-WILKES NC-CITY OF GALAX VA-GRAYSON VA-
CARROLL VA-
822 PM EDT SAT MAY 14 2011
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 100 AM EDT FOR THE
CITY OF GALAX... WESTERN CARROLL...EASTERN GRAYSON...WILKES...WESTERN
SURRY...EASTERN ASHE AND ALLEGHANY COUNTIES...
AT 814 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
THAT THE VERY HEAVY RAIN HAD MOVED OUT OF THE WARNED AREA.
HOWEVER...RADAR ESTIMATES THAT SOME LOCATIONS RECEIVED 1.5 TO 2.0
INCHES OF RAIN. RUNOFF FROM THIS HEAVY RAIN MAY STILL CAUSE SOME
CREEKS AND SMALL STREAMS TO COME OUT OF THEIR BANKS.
SOME OF THE CREEKS THAT RECEIVED THE HEAVIEST RAIN INCLUDE...GULLY
CREEK AND ROARING FORK IN THE LOW GAP AREA...PINE SWAMP
CREEK...LITTLE RIVER AND BRUSH CREEK IN ALLEGHANY COUNTY...AND
CHESTNUT CREEK IN GRAYSON COUNTY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE
BANKS OF CREEKS AND STREAMS.
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE
UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS
SUBJECT TO FLOODING WHEN WATER BEGINS RISING.
&&
LAT...LON 3611 8150 3675 8128 3677 8109 3680 8107
3685 8081 3605 8088
$$
JJ263
WGUS71 KRNK 150317
FFSRNK
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
1117 PM EDT SAT MAY 14 2011
NCC005-009-171-193-VAC035-077-640-150326-
/O.CAN.KRNK.FF.W.0024.000000T0000Z-110515T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ALLEGHANY NC-ASHE NC-SURRY NC-WILKES NC-CITY OF GALAX VA-GRAYSON VA-
CARROLL VA-
1117 PM EDT SAT MAY 14 2011
...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR THE CITY OF
GALAX... WESTERN CARROLL...EASTERN GRAYSON...WILKES...WESTERN
SURRY...EASTERN ASHE AND ALLEGHANY COUNTIES...
ANY HIGH WATER FROM THE HEAVY RAIN EARLIER IN THE EVENING SHOULD BE
RECEDING. THERE HAVE BEEN NO REPORTS OF FLOODING TO THE NATIONAL
WEATHER SERVICE. NO ADDITIONAL HEAVY RAIN IS EXPECTED THIS
EVENING...THUS THE FLASH FLOOD WARNING HAS BEEN CANCELLED.
LAT...LON 3611 8150 3675 8128 3677 8109 3680 8107
3685 8081 3605 8088
$$
JJThe office that day
Everything else NWS Blacksburg, VA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 14, 1:28 PM EDT | Special Weather Statement | RNK | Rockingham, Stokes | 62 min |
| May 14, 5:29 PM EDT | Flash Flood Warning | RNK | Watauga | 3 hr |
| May 14, 6:11 PM EDT | Special Weather Statement | RNK | Alleghany, Ashe | 79 min |
| May 14, 6:49 PM EDT | Flash Flood Watch | RNK | Alleghany, Stokes, Surry, Wilkes, Yadkin | 5 hr |
| May 14, 7:16 PM EDT | Special Weather Statement | RNK | Stokes, Surry, Yadkin | 59 min |
| May 14, 7:54 PM EDT | Flash Flood Warning | RNK | Stokes, Surry | 3 hr |
| May 14, 1:48 PM EDT | Special Weather Statement | RNK | Craig, Montgomery, Roanoke | 57 min |
| May 14, 3:38 PM EDT | Special Weather Statement | RNK | Craig, Roanoke | 67 min |
| May 14, 3:42 PM EDT | Special Weather Statement | RNK | Charlotte | 63 min |
| May 14, 5:17 PM EDT | Areal Flood Advisory | RNK | Craig, Roanoke | 3 hr |
| May 14, 7:12 PM EDT | Special Weather Statement | RNK | Giles, Montgomery, Pulaski, City of Radford | 63 min |
Nearby
Flash Flood Warnings in North Carolina, 2011Flash Flood Warnings in Virginia, 2011Every flash flood warning in 2011
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.