Alert archive / Virginia / Flash Flood Watches in 2015
Flash Flood Watch 5, NWS Blacksburg, VA
NWS Blacksburg, VA issued this flash flood watch at Jul 8, 2015, 3:47 PM EDT for 7 counties in Virginia; 4 counties in West Virginia. It took effect at Jul 8, 2015, 4:00 PM EDT. It was in force for 5 hr.
The area
The counties it named.
The facts
- Issued
- Jul 8, 2015, 3:47 PM EDT (19:47 UTC)
- In effect from
- Jul 8, 2015, 4:00 PM EDT
- Expired
- Jul 8, 2015, 8:49 PM EDT
- In force
- 5 hr
- Issued by
- NWS Blacksburg, VA
- Flood severity
- None
Counties Alleghany County, VA, Bath County, VA, Bland County, VA, City of Covington, VA, Craig County, VA, Giles County, VA, Tazewell County, VA, Greenbrier County, WV, Mercer County, WV, Monroe County, WV, Summers County, WV
The radar
The Roanoke radar (KFCX), 66 km from the middle of the area, began a volume at 19:47 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, 7.8 hours before the alert went out and 176 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
- 19 J/kg
- Mixed-layer CIN
- -183 J/kg
- Mixed-layer LCL
- 1515 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- -113 m²/s²
- 0-3 km storm-relative helicity
- -82 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The office that day
Everything else NWS Blacksburg, VA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 8, 6:09 PM EDT | Special Weather Statement | RNK | Smyth, Wythe | 36 min |
Nearby
Flash Flood Watches in Virginia, 2015Flash Flood Watches in West Virginia, 2015Every flash flood watch in 2015
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.