Alert archive / Virginia / Areal Flood Warnings in 2011
Areal Flood Warning 2, NWS Blacksburg, VA
NWS Blacksburg, VA issued this areal flood warning at Mar 6, 2011, 4:12 AM EST for Giles County, Virginia. It was in force for 12 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Mar 6, 2011, 4:12 AM EST (09:12 UTC)
- Expired
- Mar 6, 2011, 4:00 PM EST
- In force
- 12 hr
- Issued by
- NWS Blacksburg, VA
- Area
- Storm-based polygon
- Flood severity
- None
County Giles County, VA
The radar
The Roanoke radar (KFCX), 50 km from the middle of the area, began a volume at 09:13 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, 9.2 hours before the alert went out and 155 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
- 1 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1135 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 130 m²/s²
- 0-3 km storm-relative helicity
- 302 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this areal flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Blacksburg, VA wrote its last area forecast discussion before this areal flood warning went out at Mar 6, 4:07 AM EST, 5 minutes earlier.
Area forecast discussion, Mar 6, 4:07 AM EST, 5 minutes before
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</html>The office that day
Everything else NWS Blacksburg, VA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 6, 5:40 AM EST | Special Weather Statement | RNK | Carroll, Floyd, Giles, Montgomery, Pulaski, City of Galax and 1 more | 65 min |
| Mar 6, 6:44 AM EST | Areal Flood Warning | RNK | Smyth, Tazewell | 6 hr |
| Mar 6, 7:43 AM EST | Areal Flood Warning | RNK | Bland | 6 hr |
| Mar 6, 8:03 AM EST | Areal Flood Warning | RNK | Carroll, Floyd, Grayson, Patrick, City of Galax | 6 hr |
| Mar 6, 9:08 AM EST | Areal Flood Warning | RNK | Carroll, Grayson, Wythe | 6 hr |
| Mar 6, 9:13 AM EST | Areal Flood Warning | RNK | Carroll, Craig, Floyd, Franklin, Montgomery, Patrick and 3 more | 6 hr |
| Mar 6, 10:09 AM EST | Areal Flood Warning | RNK | Alleghany, Amherst, Bath, Bedford, Botetourt, Craig and 8 more | 6 hr |
| Mar 6, 10:16 AM EST | Winter Weather Advisory | RNK | Bland, Grayson, Smyth, Tazewell | 8 hr |
| Mar 6, 12:32 PM EST | River Flood Warning | RNK | Giles | 18 hr |
| Mar 6, 12:32 PM EST | River Flood Warning | RNK | Giles | 18 hr |
| Mar 6, 1:50 PM EST | Areal Flood Warning | RNK | Carroll, Floyd, Grayson, Patrick, City of Galax | 6 hr |
| Mar 6, 2:46 PM EST | Areal Flood Warning | RNK | Carroll, Grayson, Wythe | 3 hr |
| Mar 6, 3:10 PM EST | Areal Flood Warning | RNK | Carroll, Craig, Floyd, Franklin, Montgomery, Patrick and 3 more | 7 hr |
| Mar 6, 3:28 PM EST | Areal Flood Warning | RNK | Amherst, Bedford, Franklin, City of Lynchburg | 5 hr |
| Mar 6, 3:45 PM EST | Areal Flood Warning | RNK | Alleghany, Amherst, Bath, Bedford, Botetourt, Craig and 8 more | 8 hr |
| Mar 6, 4:41 AM EST | Areal Flood Warning | RNK | Alleghany, Ashe, Watauga, Wilkes | 12 hr |
| Mar 6, 8:37 AM EST | Areal Flood Warning | RNK | Alleghany, Surry, Wilkes, Yadkin | 8 hr |
| Mar 6, 12:39 PM EST | River Flood Warning | RNK | Surry, Yadkin | 15 hr |
| Mar 6, 6:03 AM EST | Areal Flood Warning | RNK | Greenbrier | 6 hr |
| Mar 6, 7:51 AM EST | Areal Flood Warning | RNK | Monroe | 6 hr |
| Mar 6, 11:30 AM EST | Areal Flood Warning | RNK | Greenbrier | 9 hr |
Nearby
Areal Flood Warnings in Virginia, 2011Every areal 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.