Alert archive / Virginia / Special Weather Statements in 2009

Special Weather Statement, NWS Blacksburg, VA

August 5, 2009Buckingham County, Virginia

NWS Blacksburg, VA issued this special weather statement at Aug 5, 2009, 11:45 PM EDT for Buckingham County, Virginia. It was in force for 60 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: Aug 5, 2009, 11:45 PM EDT (03:45 UTC)
Expired: Aug 6, 2009, 12:45 AM EDT
In force: 60 min
Issued by: NWS Blacksburg, VA

County Buckingham County, VA

The radar

The Norfolk radar (KAKQ), 151 km from the middle of the area, began a volume at 03:45 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, 3.8 hours before the alert went out and 93 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 291 J/kg
Mixed-layer CIN: -37 J/kg
Mixed-layer LCL: 606 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: 11 m²/s²
0-3 km storm-relative helicity: 27 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Aug 5, 11:08 PM EDT, 37 minutes earlier.

Area forecast discussion, Aug 5, 11:08 PM EDT, 37 minutes before

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Hazardous weather outlook, Aug 5, 11:18 PM EDT, 27 minutes before

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In the hours before

Local storm report, Aug 5, 8:31 PM EDT, 3 hours 14 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BLACKSBURG VA
831 PM EDT WED AUG 05 2009

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0755 PM     TSTM WND DMG     5 S MILTON              36.46N 79.22W
08/05/2009                   CASWELL            NC   LAW ENFORCEMENT

            TREE REPORTED DOWN ON LONGS MILL ROAD.

&&

CHENARD

Special weather statement, Aug 5, 8:34 PM EDT, 3 hours 11 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
834 PM EDT WED AUG 5 2009

VAZ058-059-060100-
CHARLOTTE VA-HALIFAX VA-
834 PM EDT WED AUG 5 2009

...A STRONG THUNDERSTORM WILL AFFECT CHARLOTTE AND HALIFAX
COUNTIES...

AT 831 PM EDT...A CLUSTER OF STRONG THUNDERSTORM WAS LOCATED 7 MILES
SOUTHEAST OF TURBEVILLE...MOVING NORTHEAST AT 30 MPH.

WIND GUSTS TO 50 MPH...FREQUENT LIGHTNIGHT...LOCALLY HEAVY RAIN AND
SMALL HAIL ARE POSSIBLE WITH THESE STORMS.

THIS STORM WILL BE NEAR SOUTH BOSTON AROUND 840 PM...VIRGILINA AROUND
845 PM...CRYSTAL HILL AROUND 850 PM...HITESBURG AROUND 855 PM AND
STAUNTON RIVER STATE PARK AROUND 900 PM.

LAT...LON 3671 7863 3669 7863 3664 7854 3663 7857
      3669 7865 3667 7869 3655 7874 3655 7908
      3674 7918 3688 7912 3705 7883 3690 7849

EXPERIMENTAL

DS

Local storm report, Aug 5, 8:42 PM EDT, 3 hours 3 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BLACKSBURG VA
842 PM EDT WED AUG 05 2009

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0608 PM     FLASH FLOOD      1 NW LANSING            36.51N 81.52W
08/05/2009                   ASHE               NC   LAW ENFORCEMENT

            LITTLE HORSE CREEK AND SOUTH FORK OF LITTLE HORSE CREEK
            OUT OF BANKS ALONG LITTLE HORSE CREEK ROAD AND JOE
            HAMPTON ROAD.

&&

WERT

Local storm report, Aug 5, 9:46 PM EDT, 1 hour 59 minutes before

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Local storm report, Aug 5, 10:09 PM EDT, 1 hour 36 minutes before

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Special weather statement, Aug 5, 11:45 PM EDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 5, 8:12 PM EDT	Severe Thunderstorm Warning	RNK	Appomattox, Campbell, Charlotte	45 min
Aug 5, 8:13 PM EDT	Areal Flood Advisory	RNK	Amherst, Bedford, Campbell, City of Lynchburg	3 hr
Aug 5, 8:34 PM EDT	Special Weather Statement	RNK	Halifax	26 min
Aug 5, 9:00 PM EDT	Flash Flood Warning	RNK	Appomattox, Campbell, Charlotte, Halifax	5 hr

Nearby

Special Weather Statements in Virginia, 2009 Every special weather statement in 2009

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.