Alert archive / North Carolina / Flash Flood Warnings in 2016
Flash Flood Warning 37, NWS Blacksburg, VA
NWS Blacksburg, VA issued this flash flood warning at Sep 29, 2016, 10:22 PM EDT for 4 counties in North Carolina. 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
- Sep 29, 2016, 10:22 PM EDT (02:22 UTC)
- Expired
- Sep 30, 2016, 4:15 AM EDT
- In force
- 6 hr
- Issued by
- NWS Blacksburg, VA
- Area
- Storm-based polygon
- Flood severity
- None
Counties Alleghany County, NC, Ashe County, NC, Watauga County, NC, Wilkes County, NC
The radar
The Roanoke radar (KFCX), 140 km from the middle of the area, began a volume at 02:24 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
Greensboro/Hi Pt, NC (KGSO), launched 00:00Z, 2.4 hours before the alert went out and 138 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
- 1097 J/kg
- Mixed-layer CIN
- -10 J/kg
- Mixed-layer LCL
- 743 m above ground
- 0-6 km bulk shear
- 54 kt
- 0-1 km storm-relative helicity
- 101 m²/s²
- 0-3 km storm-relative helicity
- 136 m²/s²
- Significant tornado parameter
- 0.5
- Supercell composite
- 4.0
The text
As transmitted.
933
WGUS51 KRNK 300222
FFWRNK
NCC005-009-189-193-300815-
/O.NEW.KRNK.FF.W.0037.160930T0222Z-160930T0815Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BLACKSBURG VA
1022 PM EDT THU SEP 29 2016
THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A
* FLASH FLOOD WARNING FOR...
WESTERN WILKES COUNTY IN NORTHWESTERN NORTH CAROLINA...
EASTERN WATAUGA COUNTY IN NORTHWESTERN NORTH CAROLINA...
EXTREME WESTERN ALLEGHANY COUNTY IN NORTHWESTERN NORTH CAROLINA...
EASTERN ASHE COUNTY IN NORTHWESTERN NORTH CAROLINA...
* UNTIL 415 AM EDT
* AT 1018 PM EDT...DOPPLER RADAR AND AUTOMATED RAIN GAUGES INDICATED
THUNDERSTORMS PRODUCING HEAVY RAIN ACROSS THE WARNED AREA. RAINFALL
AMOUNTS OF 3.0 TO 3.5 INCHES HAVE BEEN OBSERVED FROM OTHELLO TO
TO PINEY CREEK...WITH AMOUNTS OF 1.5 TO 2.5 INCHES ACROSS MUCH OF
THE REMAINDER OF THE WARNED AREA. HEAVY RAIN AND THUNDERSTORMS
WILL CONTINUE TO TRACK ACROSS THIS REGION OVER THE NEXT SEVERAL
HOURS WITH ADDITIONAL RAINFALL AMOUNTS OF POTENTIALLY UP TO 3
ADDITIONAL INCHES POSSIBLE DURING THE WARNED PERIOD. FLASH FLOODING
IS EXPECTED TO BEGIN SHORTLY.
* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
JEFFERSON...
WEST JEFFERSON...
DEEP GAP...
GLENDALE SPRINGS...
AND WILBAR.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.
IN HILLY TERRAIN THERE ARE HUNDREDS OF LOW WATER CROSSINGS WHICH ARE
POTENTIALLY DANGEROUS IN HEAVY RAIN. DO NOT ATTEMPT TO CROSS FLOODED
ROADS. FIND AN ALTERNATE ROUTE.
WHEN IT IS SAFE TO DO SO...PLEASE SEND YOUR REPORTS OF FLOODING...
INCLUDING MUDSLIDES OR FLOODED ROADS...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 3605 8139 3607 8141 3608 8143 3607 8144
3609 8146 3610 8151 3612 8156 3658 8149
3657 8128 3604 8135
$$
RAB2 follow-up statements
858
WGUS71 KRNK 300408
FFSRNK
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
1208 AM EDT FRI SEP 30 2016
NCC005-009-189-193-300815-
/O.CON.KRNK.FF.W.0037.000000T0000Z-160930T0815Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WILKES NC-WATAUGA NC-ALLEGHANY NC-ASHE NC-
1208 AM EDT FRI SEP 30 2016
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 415 AM EDT FOR
WESTERN WILKES...EASTERN WATAUGA...EXTREME WESTERN ALLEGHANY AND
EASTERN ASHE COUNTIES IN NORTHWESTERN NORTH CAROLINA...
AT 1201 AM EDT...DOPPLER RADAR AND AUTOMATED RAIN GAUGES INDICATED
THAT RAINFALL HAD DECREASED ACROSS ASHE...WATAUGA...AND WESTERN
WILKES COUNTIES...BUT CONTINUED ACROSS WESTERN ALLEGHANY COUNTY.
RAINFALL OF 2 TO 3 INCHES HAS BEEN OBSERVED OVER THE LAST FEW HOURS
WITHIN THE FLASH FLOOD WARNING AREA...WITH A FEW SPOTS HAVING
RAINFALL AROUND 4 INCHES NEAR WAGONER...OTHELLO...AND GLENDALE
SPRINGS. FLASH FLOODING REMAINS POSSIBLE THROUGHOUT THE WARNED AREA.
SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
JEFFERSON...
WEST JEFFERSON...
DEEP GAP...
GLENDALE SPRINGS...
AND WILBAR.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.
IN HILLY TERRAIN THERE ARE HUNDREDS OF LOW WATER CROSSINGS WHICH ARE
POTENTIALLY DANGEROUS IN HEAVY RAIN. DO NOT ATTEMPT TO CROSS FLOODED
ROADS. FIND AN ALTERNATE ROUTE.
WHEN IT IS SAFE TO DO SO...PLEASE SEND YOUR REPORTS OF FLOODING...
INCLUDING MUDSLIDES OR FLOODED ROADS...TO THE NATIONAL WEATHER
SERVICE BY CALLING TOLL FREE AT 1...8 6 6...2 1 5...4 3 2 4. REPORTS
AND PICTURES CAN ALSO BE SHARED ON THE NATIONAL WEATHER SERVICE
BLACKSBURG FACEBOOK PAGE AND ON TWITTER.
&&
LAT...LON 3605 8139 3607 8141 3608 8143 3607 8144
3609 8146 3610 8151 3612 8156 3658 8149
3657 8128 3604 8135
$$
RAB763
WGUS71 KRNK 300449
FFSRNK
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
1249 AM EDT FRI SEP 30 2016
NCC005-009-189-193-300459-
/O.CAN.KRNK.FF.W.0037.000000T0000Z-160930T0815Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WILKES NC-WATAUGA NC-ALLEGHANY NC-ASHE NC-
1249 AM EDT FRI SEP 30 2016
...THE FLASH FLOOD WARNING FOR
WESTERN WILKES...SOUTHEASTERN WATAUGA...NORTHWESTERN ALLEGHANY AND
CENTRAL ASHE COUNTIES IN NORTHWESTERN NORTH CAROLINA IS CANCELLED...
THE HEAVY RAIN HAS ENDED. PLEASE CONTINUE TO HEED ANY REMAINING ROAD
CLOSURES.
WHEN IT IS SAFE TO DO SO...PLEASE SEND YOUR REPORTS OF FLOODING...
INCLUDING MUDSLIDES OR FLOODED ROADS...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 3605 8139 3607 8141 3608 8143 3607 8144
3609 8146 3610 8151 3612 8156 3658 8149
3657 8128 3604 8135
$$
RSThe office that day
Everything else NWS Blacksburg, VA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 29, 8:02 PM EDT | Special Weather Statement | RNK | Alleghany, Wilkes | 88 min |
| Sep 29, 8:21 PM EDT | Areal Flood Advisory | RNK | Alleghany, Ashe, Surry, Wilkes | 3 hr |
| Sep 29, 8:30 PM EDT | Special Weather Statement | RNK | Surry, Yadkin | 60 min |
| Sep 29, 9:19 PM EDT | Flash Flood Warning | RNK | Surry | 3 hr |
| Sep 29, 11:54 PM EDT | Areal Flood Advisory | RNK | Alleghany, Wilkes | 6 hr |
| Sep 30, 12:50 AM EDT | Special Weather Statement | RNK | Surry | 40 min |
| Sep 30, 3:22 AM EDT | Special Weather Statement | RNK | Wilkes | 53 min |
| Sep 30, 4:01 AM EDT | Special Weather Statement | RNK | Alleghany | 29 min |
| Sep 30, 6:35 AM EDT | Special Weather Statement | RNK | Stokes | 40 min |
| Sep 30, 6:58 AM EDT | Severe Thunderstorm Warning | RNK | Stokes | 47 min |
| Sep 30, 11:48 AM EDT | Areal Flood Advisory | RNK | Rockingham | 6 hr |
Nearby
Flash Flood Warnings in North Carolina, 2016Every flash flood warning in 2016
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.