Alert archive / Virginia / Special Weather Statements in 2017

Special Weather Statement, NWS Blacksburg, VA

June 16, 2017City of Lynchburg, Virginia

NWS Blacksburg, VA issued this special weather statement at Jun 16, 2017, 3:08 AM EDT for City of Lynchburg, Virginia. It was in force for 52 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jun 16, 2017, 3:08 AM EDT (07:08 UTC)
Expired
Jun 16, 2017, 4:00 AM EDT
In force
52 min
Issued by
NWS Blacksburg, VA

County City of Lynchburg, VA

The radar

The Roanoke radar (KFCX), 99 km from the middle of the area, began a volume at 07:09 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

Roanoke, VA (KRNK), launched 00:00Z, 7.1 hours before the alert went out and 30 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.

Skew-T log-pSkew-T log-p diagram, Roanoke, VA at 00:00Z on 2017-06-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 179 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Roanoke, VA at 00:00Z on 2017-06-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 109 square meters per square second.1939Sfc1 km3 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
179 J/kg
Mixed-layer CIN
-68 J/kg
Mixed-layer LCL
1037 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
109 m²/s²
0-3 km storm-relative helicity
156 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

922 
WWUS81 KRNK 160708
SPSRNK

Special Weather Statement
National Weather Service BLACKSBURG VA
308 AM EDT FRI JUN 16 2017

VAZ034-035-045-160800-
Amherst-Campbell-Bedford-
308 AM EDT FRI JUN 16 2017

...AN AREA OF THUNDERSTORMS PRODUCING BRIEF DOWNPOURS WILL AFFECT 
NORTH CENTRAL CAMPBELL...EAST CENTRAL BEDFORD...AND SOUTH CENTRAL 
AMHERST COUNTIES AND THE CITY OF LYNCHBURG...

At 303 AM EDT, thunderstorms were clustered over Forest, moving 
northeast at 10 mph. 

Doppler radar estimates one-hourly rainfall rates up to 1.25" with 
these thunderstorms. Rainfall estimates this high may lead to 
localized ponding of water and poor drainage flooding, especially in 
areas that received torrential rains from thunderstorms Thursday 
afternoon, as well as in the city of Lynchburg. 

Locations impacted include...
Lynchburg...
Forest...
Madison Heights...
Boonsboro...
and Goode.

Be especially cautious at night when it is harder to recognize the 
dangers of flooding.

LAT...LON 3728 7936 3741 7944 3758 7909 3737 7898
TIME...MOT...LOC 0703Z 247DEG 9KT 3736 7931 

$$

Loconto

The office that day

Everything else NWS Blacksburg, VA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 15, 8:02 PM EDTSpecial Weather StatementRNKAmherst43 min
Jun 15, 8:06 PM EDTFlash Flood WarningRNKAmherst, Bedford, City of Lynchburg3 hr
Jun 15, 8:06 PM EDTSevere Thunderstorm WarningRNKAmherst, Bedford35 min
Jun 15, 8:10 PM EDTSevere Thunderstorm WarningRNKHenry65 min
Jun 15, 8:33 PM EDTSpecial Weather StatementRNKAppomattox27 min
Jun 15, 8:46 PM EDTSpecial Weather StatementRNKBuckingham29 min
Jun 15, 8:54 PM EDTSevere Thunderstorm WarningRNKHenry, Pittsylvania, City of Martinsville30 min
Jun 15, 10:30 PM EDTSpecial Weather StatementRNKHalifax60 min
Jun 15, 10:48 PM EDTSpecial Weather StatementRNKCharlotte42 min
Jun 15, 11:34 PM EDTSpecial Weather StatementRNKHalifax41 min
Jun 16, 12:13 AM EDTSpecial Weather StatementRNKHenry, City of Martinsville62 min
Jun 16, 12:54 AM EDTAreal Flood AdvisoryRNKHenry3 hr
Jun 16, 1:21 AM EDTSpecial Weather StatementRNKPittsylvania, City of Danville54 min
Jun 16, 2:09 AM EDTAreal Flood AdvisoryRNKHalifax, Pittsylvania, City of Danville3 hr
Jun 16, 2:09 AM EDTFlash Flood WarningRNKHenry, City of Martinsville3 hr
Jun 16, 5:24 AM EDTAreal Flood WarningRNKHenry, City of Martinsville3 hr
Jun 16, 10:28 AM EDTSpecial Weather StatementRNKFranklin, Henry, Patrick, Pittsylvania, City of Martinsville62 min
Jun 16, 11:18 AM EDTSpecial Weather StatementRNKCity of Danville42 min
Jun 16, 11:33 AM EDTSpecial Weather StatementRNKPittsylvania42 min
Jun 16, 12:31 PM EDTSpecial Weather StatementRNKCraig29 min
Jun 16, 1:21 PM EDTSpecial Weather StatementRNKBland24 min
Jun 16, 4:57 PM EDTSpecial Weather StatementRNKBuckingham48 min
Jun 16, 5:02 PM EDTSpecial Weather StatementRNKCity of Buena Vista58 min
Jun 16, 6:46 PM EDTAreal Flood AdvisoryRNKBland, Smyth, Tazewell3 hr
Jun 15, 11:57 PM EDTSpecial Weather StatementRNKRockingham63 min
Jun 16, 1:16 PM EDTSpecial Weather StatementRNKAshe, Watauga44 min
Jun 16, 6:14 PM EDTSpecial Weather StatementRNKYadkin31 min
Jun 16, 6:51 PM EDTAreal Flood AdvisoryRNKSurry, Wilkes, Yadkin3 hr

Nearby

Special Weather Statements in Virginia, 2017Every special weather statement in 2017

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.