Alert archive / Virginia / Special Weather Statements in 2009

Special Weather Statement, NWS Blacksburg, VA

July 28, 2009City of Lynchburg, Virginia

NWS Blacksburg, VA issued this special weather statement at Jul 28, 2009, 8:10 PM EDT for City of Lynchburg, Virginia. It was in force for 65 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: Jul 28, 2009, 8:10 PM EDT (00:10 UTC)
Expired: Jul 28, 2009, 9:15 PM EDT
In force: 65 min
Issued by: NWS Blacksburg, VA

County City of Lynchburg, VA

The radar

The Roanoke radar (KFCX), 109 km from the middle of the area, began a volume at 00:14 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, 0.2 hours before the alert went out and 38 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: 762 J/kg
Mixed-layer CIN: -16 J/kg
Mixed-layer LCL: 1248 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 27 m²/s²
0-3 km storm-relative helicity: 33 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 1.9

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 Jul 28, 8:01 PM EDT, 9 minutes earlier.

Area forecast discussion, Jul 28, 8:01 PM EDT, 9 minutes before

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Hazardous weather outlook, Jul 28, 4:08 AM EDT, 16 hours 2 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BLACKSBURG VA
408 AM EDT TUE JUL 28 2009

NCZ003>006-019-020-VAZ022>024-032>035-043>047-058-059-290815-
SURRY-STOKES-ROCKINGHAM-CASWELL-WILKES-YADKIN-ROANOKE-BOTETOURT-
ROCKBRIDGE-PATRICK-FRANKLIN-BEDFORD-AMHERST-HENRY-PITTSYLVANIA-
CAMPBELL-APPOMATTOX-BUCKINGHAM-HALIFAX-CHARLOTTE-
408 AM EDT TUE JUL 28 2009

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL NORTH
CAROLINA...NORTHWEST NORTH CAROLINA...CENTRAL VIRGINIA...SOUTH
CENTRAL VIRGINIA...SOUTHWEST VIRGINIA AND WEST CENTRAL VIRGINIA.

.DAY ONE...TODAY AND TONIGHT.

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

NCZ001-002-018-VAZ007-009>020-WVZ042>045-290815-
ASHE-ALLEGHANY NC-WATAUGA-TAZEWELL-SMYTH-BLAND-GILES-WYTHE-PULASKI-
MONTGOMERY-GRAYSON-CARROLL-FLOYD-CRAIG-ALLEGHANY VA-BATH-MERCER-
SUMMERS-MONROE-GREENBRIER-
408 AM EDT TUE JUL 28 2009

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHWEST NORTH
CAROLINA...SOUTHWEST VIRGINIA...WEST CENTRAL VIRGINIA AND SOUTHEAST
WEST VIRGINIA.

.DAY ONE...TODAY AND TONIGHT.

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.
HOWEVER...THE POTENTIAL FOR ISOLATED FLASH FLOODING EXISTS
WEDNESDAY AS A DISTURBANCE MOVES ACROSS. ISOLATED SEVERE
THUNDERSTORMS ARE ALSO POSSIBLE WEDNESDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

In the hours before

Special weather statement, Jul 28, 6:43 PM EDT, 1 hour 27 minutes before

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Special weather statement, Jul 28, 6:45 PM EDT, 1 hour 25 minutes before

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Special weather statement, Jul 28, 7:05 PM EDT, 1 hour 5 minutes before

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Special weather statement, Jul 28, 7:16 PM EDT, 54 minutes before

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Special weather statement, Jul 28, 7:38 PM EDT, 32 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
738 PM EDT TUE JUL 28 2009

NCZ001-VAZ009-015-290045-
ASHE NC-GRAYSON VA-SMYTH VA-
738 PM EDT TUE JUL 28 2009

...A STRONG THUNDERSTORM WILL AFFECT WESTERN ASHE...WESTERN GRAYSON
AND EASTERN SMYTH COUNTIES...

AT 737 PM EDT...A STRONG THUNDERSTORM WAS LOCATED 6 MILES SOUTH OF
WHITETOP...MOVING NORTHEAST AT 20 MPH.

WIND GUSTS TO 40 MPH AND PEA-SIZED HAIL 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 LANSING AROUND 745 PM...NELLA...AND WHITETOP
AROUND 750 PM...GRAYSON HIGHLANDS STATE PARK...MOUNT ROGERS SUMMIT...
AND GRASSY CREEK AROUND 805 PM...RUGBY AROUND 810 PM...VOLNEY...AND
THOMAS BRIDGE AROUND 815 PM AND TROUTDALE AROUND 820 PM.

LAT...LON 3648 8171 3653 8171 3660 8168 3663 8161
      3664 8163 3667 8165 3688 8149 3672 8118
      3639 8160 3647 8172

EXPERIMENTAL

RCS

Special weather statement, Jul 28, 8:10 PM EDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
810 PM EDT TUE JUL 28 2009

VAZ045-290115-
CAMPBELL VA-
810 PM EDT TUE JUL 28 2009

...A STRONG THUNDERSTORM WILL AFFECT CAMPBELL COUNTY AND THE CITY OF
LYNCHBURG...

AT 808 PM EDT...A STRONG THUNDERSTORM WAS LOCATED 3 MILES NORTH OF
EVINGTON...MOVING NORTHEAST AT 5 MPH.

WIND GUSTS TO 40 MPH AND SMALL HAIL 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 TIMBERLAKE AROUND 840 PM...LYNCHBURG AIRPORT
AROUND 855 PM AND CITY OF LYNCHBURG AROUND 915 PM.

LAT...LON 3734 7897 3722 7925 3727 7931 3743 7922
      3746 7919 3743 7914 3738 7912 3741 7910
      3739 7907 3740 7906

EXPERIMENTAL

RCS

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 28, 8:55 PM EDT	Special Weather Statement	RNK	Appomattox, Buckingham	35 min
Jul 28, 8:57 PM EDT	Special Weather Statement	RNK	Smyth, Tazewell	63 min
Jul 29, 12:21 AM EDT	Special Weather Statement	RNK	Amherst, City of Lynchburg	39 min
Jul 29, 12:29 AM EDT	Special Weather Statement	RNK	Alleghany, City of Covington	31 min
Jul 29, 1:04 AM EDT	Special Weather Statement	RNK	Amherst, Appomattox, Buckingham, Rockbridge, City of Buena Vista, City of Lexington	56 min
Jul 29, 4:52 PM EDT	Special Weather Statement	RNK	Bedford, City of Roanoke	53 min
Jul 29, 5:40 PM EDT	Special Weather Statement	RNK	Bedford, City of Lynchburg	65 min
Jul 29, 6:54 PM EDT	Special Weather Statement	RNK	Bedford, City of Lynchburg	51 min
Jul 29, 12:19 AM EDT	Special Weather Statement	RNK	Caswell	26 min
Jul 29, 4:54 PM EDT	Special Weather Statement	RNK	Yadkin	66 min
Jul 29, 5:37 PM EDT	Special Weather Statement	RNK	Rockingham, Stokes	53 min
Jul 29, 6:26 PM EDT	Special Weather Statement	RNK	Greenbrier	64 min

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.