Alert archive / Virginia / Special Weather Statements in 2011
Special Weather Statement, NWS Blacksburg, VA
NWS Blacksburg, VA issued this special weather statement at Jul 24, 2011, 4:21 PM EDT for Franklin County, Virginia. It was in force for 39 min. 3 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jul 24, 2011, 4:21 PM EDT (20:21 UTC)
- Expired
- Jul 24, 2011, 5:00 PM EDT
- In force
- 39 min
- Issued by
- NWS Blacksburg, VA
County Franklin County, VA
The radar
The Roanoke radar (KFCX), 46 km from the middle of the area, began a volume at 20:21 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 24, 4:40 PM EDT | TSTM WND DMG | 3 N Sydnorsville, VA | TREES DOWN ON GOOSE DAM RD |
| Jul 24, 4:48 PM EDT | TSTM WND DMG | 3 Nne Sydnorsville, VA | TREES DOWN ON MCNEIL MILL RD |
| Jul 24, 4:50 PM EDT | TSTM WND DMG | 3 Ene Sydnorsville, VA | 2 TREES AND SEVERAL BRANCHES DOWN ON SONTAG RD |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Roanoke, VA (KRNK), launched 12:00Z, 8.4 hours before the alert went out and 47 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
- 1079 J/kg
- Mixed-layer CIN
- -28 J/kg
- Mixed-layer LCL
- 764 m above ground
- 0-6 km bulk shear
- 4 kt
- 0-1 km storm-relative helicity
- -81 m²/s²
- 0-3 km storm-relative helicity
- -34 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
748
WWUS81 KRNK 242021
SPSRNK
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
421 PM EDT SUN JUL 24 2011
VAZ033-242100-
FRANKLIN VA-
421 PM EDT SUN JUL 24 2011
...A STRONG THUNDERSTORM WILL AFFECT FRANKLIN COUNTY...
AT 417 PM EDT...A STRONG THUNDERSTORM WAS LOCATED 4 MILES SOUTH OF
ROCKY MOUNT...MOVING SOUTHEAST AT 10 MPH.
WIND GUSTS TO 40 MPH ARE POSSIBLE WITH THIS STORM. VERY HEAVY RAIN
WILL FALL FROM THIS STORM...AND WILL CAUSE WATER TO POND ON ROADS AND
QUICKLY FILL ROADSIDE DITCHES AND SMALL STREAMS.
THIS STORM WILL BE NEAR SONTAG AROUND 445 PM AND SYDNORSVILLE AROUND
500 PM.
LAT...LON 3680 7977 3679 7982 3682 7994 3697 8004
3707 7985 3686 7964 3683 7967 3681 7974
3679 7976
$$
RCSThe office that day
Everything else NWS Blacksburg, VA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 24, 2:24 PM EDT | Special Weather Statement | RNK | City of Radford | 51 min |
| Jul 24, 3:08 PM EDT | Special Weather Statement | RNK | Patrick | 37 min |
| Jul 24, 3:26 PM EDT | Special Weather Statement | RNK | Bedford | 64 min |
| Jul 24, 3:28 PM EDT | Special Weather Statement | RNK | Smyth | 47 min |
| Jul 24, 3:42 PM EDT | Special Weather Statement | RNK | Henry | 63 min |
| Jul 24, 4:30 PM EDT | Severe Thunderstorm Warning | RNK | Franklin | 44 min |
| Jul 24, 4:34 PM EDT | Special Weather Statement | RNK | Pulaski | 41 min |
| Jul 24, 4:57 PM EDT | Severe Thunderstorm Warning | RNK | Pittsylvania | 63 min |
| Jul 24, 5:19 PM EDT | Special Weather Statement | RNK | City of Lynchburg | 56 min |
| Jul 24, 5:53 PM EDT | Special Weather Statement | RNK | Appomattox | 37 min |
| Jul 24, 6:08 PM EDT | Severe Thunderstorm Warning | RNK | Appomattox | 46 min |
| Jul 24, 6:12 PM EDT | Severe Thunderstorm Warning | RNK | Charlotte, Halifax | 48 min |
| Jul 24, 2:02 PM EDT | Special Weather Statement | RNK | Ashe | 28 min |
| Jul 24, 2:06 PM EDT | Severe Thunderstorm Warning | RNK | Ashe, Wilkes | 39 min |
| Jul 24, 2:50 PM EDT | Severe Thunderstorm Warning | RNK | Surry, Wilkes, Yadkin | 55 min |
| Jul 24, 3:19 PM EDT | Special Weather Statement | RNK | Stokes | 56 min |
| Jul 24, 5:40 PM EDT | Severe Thunderstorm Warning | RNK | Caswell | 65 min |
Nearby
Special Weather Statements in Virginia, 2011Every special weather statement 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.