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Tornado Watch #642 – CANCELED

[ 0 ] September 18, 2012 | Nelson County Life

Via NWS: A tornado watch continues for all of the areas highlighted in red until 7PM EDT in Central Virginia. This includes Wintergreen & Nelson.

Statement as of 2:56 PM EDT on September 18, 2012
The National Weather Service has cancelled Tornado Watch 642 for
the following areas

In Maryland this cancels 1 County

In north central Maryland

Washington

In Virginia this cancels 11 counties

In central Virginia

Albemarle Greene Nelson

In northwest Virginia

Clarke Frederick Madison
Page Shenandoah Warren

In western Virginia

Augusta Rockingham

In West Virginia this cancels 3 counties

In northeast West Virginia

Berkeley Jefferson Morgan

In Virginia this cancels 5 independent cities

In central Virginia

Charlottesville

In northwest Virginia

City of Harrisonburg City of Winchester

In western Virginia

City of Staunton City of Waynesboro

This includes the cities of…Berryville…Charles Town…
Charlottesville…Front Royal…Greenfield…Hagerstown…
Harrisonburg…Luray…Madison…Martinsburg…Paw Paw…
Stanardsville…Staunton…Strasburg…Waynesboro…
Winchester and Woodstock.

TORNADO WATCH NUMBER 642
Scroll down for city, county specific outlines

URGENT – IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 642
NWS STORM PREDICTION CENTER NORMAN OK
1055 AM EDT TUE SEP 18 2012

THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF

DISTRICT OF COLUMBIA
MARYLAND
NORTHERN NORTH CAROLINA
CENTRAL AND EASTERN VIRGINIA
EASTERN WEST VIRGINIA PANHANDLE
COASTAL WATERS

EFFECTIVE THIS TUESDAY MORNING AND EVENING FROM 1055 AM UNTIL 700
PM EDT.

TORNADOES…HAIL TO 0.5 INCH IN DIAMETER…THUNDERSTORM WIND
GUSTS TO 70 MPH…AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
AREAS.

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 90 STATUTE
MILES EAST AND WEST OF A LINE FROM 35 MILES EAST SOUTHEAST OF
SOUTH HILL VIRGINIA TO 40 MILES NORTH NORTHEAST OF BALTIMORE
MARYLAND. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU2).

REMEMBER…A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH
AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR
THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS
AND POSSIBLE WARNINGS.

OTHER WATCH INFORMATION…CONTINUE…WW 641…

DISCUSSION…A GRADUAL INCREASE IN STORM COVERAGE AND INTENSITY IS
EXPECTED TODAY AS LARGE-SCALE FORCING FOR ASCENT INCREASES ACROSS A
VERY MOIST AND MARGINALLY UNSTABLE WARM SECTOR. CURRENT VAD AND
MODEL FORECAST DATA INDICATE A CONTINUED STRENGTHENING OF THE
DEEP-LAYER WIND FIELD THROUGH THE PEAK OF THE DIURNAL HEATING CYCLE
WITH THE ENVIRONMENT BECOMING SUPPORTIVE OF EMBEDDED BOW/LEWP AND
SUPERCELL STRUCTURES CAPABLE OF TORNADOES AND DAMAGING WINDS.

AVIATION…TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 0.5 INCH. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
500. MEAN STORM MOTION VECTOR 23040.

TORNADO WATCH 642 IS IN EFFECT UNTIL 700 PM EDT FOR THE
FOLLOWING LOCATIONS

DCC001-182300-
/O.NEW.KWNS.TO.A.0642.120918T1455Z-120918T2300Z/

DC
. DISTRICT OF COLUMBIA COUNTIES INCLUDED ARE

DISTRICT OF COLUMBIA

MDC003-005-009-013-017-019-021-025-027-031-033-037-039-043-045-
047-510-182300-
/O.NEW.KWNS.TO.A.0642.120918T1455Z-120918T2300Z/

MD
. MARYLAND COUNTIES INCLUDED ARE

ANNE ARUNDEL BALTIMORE CALVERT
CARROLL CHARLES DORCHESTER
FREDERICK HARFORD HOWARD
MONTGOMERY PRINCE GEORGES SOMERSET
ST. MARYS WASHINGTON WICOMICO
WORCESTER

MARYLAND INDEPENDENT CITIES INCLUDED ARE

BALTIMORE CITY

NCC015-029-033-041-053-073-091-131-139-143-182300-
/O.NEW.KWNS.TO.A.0642.120918T1455Z-120918T2300Z/

NC
. NORTH CAROLINA COUNTIES INCLUDED ARE

BERTIE CAMDEN CASWELL
CHOWAN CURRITUCK GATES
HERTFORD NORTHAMPTON PASQUOTANK
PERQUIMANS

VAC001-003-007-009-011-013-015-025-029-031-033-036-037-041-043-
047-049-053-057-059-061-065-069-073-075-079-081-083-085-087-093-
095-097-099-101-103-107-109-111-113-115-117-119-125-127-131-133-
135-137-139-143-145-147-149-153-157-159-165-171-175-177-179-181-
183-187-193-199-510-540-550-570-590-595-600-610-620-630-650-660-
670-680-683-685-700-710-730-735-740-760-790-800-810-820-830-840-
182300-
/O.NEW.KWNS.TO.A.0642.120918T1455Z-120918T2300Z/

VA
. VIRGINIA COUNTIES INCLUDED ARE

ACCOMACK ALBEMARLE AMELIA
AMHERST APPOMATTOX ARLINGTON
AUGUSTA BRUNSWICK BUCKINGHAM
CAMPBELL CAROLINE CHARLES CITY
CHARLOTTE CHESTERFIELD CLARKE
CULPEPER CUMBERLAND DINWIDDIE
ESSEX FAIRFAX FAUQUIER
FLUVANNA FREDERICK GLOUCESTER
GOOCHLAND GREENE GREENSVILLE
HALIFAX HANOVER HENRICO
ISLE OF WIGHT JAMES CITY KING AND QUEEN
KING GEORGE KING WILLIAM LANCASTER
LOUDOUN LOUISA LUNENBURG
MADISON MATHEWS MECKLENBURG
MIDDLESEX NELSON NEW KENT
NORTHAMPTON NORTHUMBERLAND NOTTOWAY
ORANGE PAGE PITTSYLVANIA
POWHATAN PRINCE EDWARD PRINCE GEORGE
PRINCE WILLIAM RAPPAHANNOCK RICHMOND
ROCKINGHAM SHENANDOAH SOUTHAMPTON
SPOTSYLVANIA STAFFORD SURRY
SUSSEX WARREN WESTMORELAND
YORK

VIRGINIA INDEPENDENT CITIES INCLUDED ARE

ALEXANDRIA CHARLOTTESVILLE CHESAPEAKE
COLONIAL HEIGHTS DANVILLE EMPORIA
FAIRFAX FALLS CHURCH FRANKLIN
FREDERICKSBURG HAMPTON HARRISONBURG
HOPEWELL LYNCHBURG MANASSAS
MANASSAS PARK NEWPORT NEWS NORFOLK
PETERSBURG POQUOSON PORTSMOUTH
RICHMOND STAUNTON SUFFOLK
VIRGINIA BEACH WAYNESBORO WILLIAMSBURG
WINCHESTER

WVC003-037-065-182300-
/O.NEW.KWNS.TO.A.0642.120918T1455Z-120918T2300Z/

WV
. WEST VIRGINIA COUNTIES INCLUDED ARE

BERKELEY JEFFERSON MORGAN

ANZ530-531-532-533-534-535-536-537-538-539-540-541-542-543-630-
631-632-633-634-650-652-654-656-658-182300-
/O.NEW.KWNS.TO.A.0642.120918T1455Z-120918T2300Z/

CW

. ADJACENT COASTAL WATERS INCLUDED ARE

CHESAPEAKE BAY NORTH OF POOLES ISLAND MD

CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT MD

CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH MD

CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT MD

CHESAPEAKE BAY FROM DRUM POINT MD TO SMITH POINT VA

TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD MD

TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND MD

TIDAL POTOMAC FROM COBB ISLAND MD TO SMITH POINT VA

PATAPSCO RIVER INCLUDING BALTIMORE HARBOR

CHESTER RIVER TO QUEENSTOWN MD

EASTERN BAY

CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER

PATUXENT RIVER TO BROOMES ISLAND MD

TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH
ISLAND

CHESAPEAKE BAY FROM SMITH POINT TO WINDMILL POINT VA

CHESAPEAKE BAY FROM WINDMILL POINT TO NEW POINT COMFORT VA

CHESAPEAKE BAY FROM NEW POINT COMFORT TO LITTLE CREEK VA

CURRITUCK SOUND

CHESAPEKE BAY FROM LITTLE CREEK VA TO CAPE HENRY VA INCLUDING THE
CHESAPEKE BAY BRIDGE TUNNEL

COASTAL WATERS FROM FENWICK ISLAND DE TO CHINCOTEAGUE VA OUT 20
NM

COASTAL WATERS FROM CHINCOTEAGUE TO PARRAMORE ISLAND VA OUT 20 NM

COASTAL WATERS FROM PARRAMORE ISLAND TO CAPE CHARLES LIGHT VA OUT
20 NM

COASTAL WATERS FROM CAPE CHARLES LIGHT TO VIRGINIA-NORTH CAROLINA
BORDER OUT TO 20 NM

COASTAL WATERS FROM NC VA BORDER TO CURRITUCK BEACH LIGHT NC OUT
20 NM

ATTN…WFO…LWX…AKQ…RNK…

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