Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
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Watch Status Reports.
SEL2
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 322
NWS STORM PREDICTION CENTER NORMAN OK
155 PM EDT TUE JUN 2 2009
THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
DISTRICT OF COLUMBIA
DELAWARE
EASTERN MARYLAND
SOUTHERN NEW JERSEY
SOUTHEASTERN PENNSYLVANIA
NORTHEASTERN VIRGINIA
COASTAL WATERS
EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING FROM 155 PM UNTIL
800 PM EDT.
HAIL TO 1.5 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 75
STATUTE MILES EAST AND WEST OF A LINE FROM 30 MILES NORTH OF
LAKEHURST NEW JERSEY TO 15 MILES WEST SOUTHWEST OF PATUXENT RIVER
MARYLAND. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU2).
REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
FAVORABLE FOR 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. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY
DO PRODUCE TORNADOES.
OTHER WATCH INFORMATION...CONTINUE...WW 321...
DISCUSSION...AN UPPER LEVEL IMPULSE MOVING EWD THROUGH ERN PA WAS
HELPING TO INITIATE STORMS IN SRN PA. THESE STORMS ARE EXPECTED TO
INCREASE IN NUMBER AND INTENSIFY AS THEY MOVE SEWD AT 30-40 MPH.
DEEP LAYER SHEAR AND 30-40 KT MID LEVEL WINDS ARE SUPPORTIVE OF LINE
SEGMENTS/BOWS WITH WIND DAMAGE THE GREATER THREAT. HOWEVER...THE
AMOUNT OF SHEAR COMBINED WITH MODERATE INSTABILITY WILL ALSO SUPPORT
STORMS WITH MID LEVEL ROTATION AND SEVERE HAIL.
AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 450. MEAN STORM
MOTION VECTOR 30035.
...IMY
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW2
WW 322 SEVERE TSTM DC DE MD NJ PA VA CW 021755Z - 030000Z
AXIS..75 STATUTE MILES EAST AND WEST OF LINE..
30N NEL/LAKEHURST NJ/ - 15WSW NHK/PATUXENT RIVER MD/
..AVIATION COORDS.. 65NM E/W /27WSW JFK - 43SSE DCA/
HAIL SURFACE AND ALOFT..1.5 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 450. MEAN STORM MOTION VECTOR 30035.
LAT...LON 40477290 38187529 38187805 40477576
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU2.
Watch 322 Status Report Messages:
STATUS REPORT #4 ON WW 322
VALID 022335Z - 030040Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 30 NE CHO TO
35 SSW DCA TO 15 N NHK TO 45 E SBY.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 928
..HURLBUT..06/02/09
ATTN...WFO...LWX...PHI...AKQ...
&&
STATUS REPORT FOR WS 322
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
MDC009-019-037-039-045-047-030040-
MD
. MARYLAND COUNTIES INCLUDED ARE
CALVERT DORCHESTER ST. MARYS
SOMERSET WICOMICO WORCESTER
$$
VAC001-003-033-099-103-125-133-137-159-177-193-540-630-030040-
VA
. VIRGINIA COUNTIES INCLUDED ARE
ACCOMACK ALBEMARLE CAROLINE
KING GEORGE LANCASTER NELSON
NORTHUMBERLAND ORANGE RICHMOND
SPOTSYLVANIA WESTMORELAND
VIRGINIA INDEPENDENT CITIES INCLUDED ARE
CHARLOTTESVILLE FREDERICKSBURG
$$
ANZ533-534-537-630-650-652-030040-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT MD
CHESAPEAKE BAY FROM DRUM POINT MD TO SMITH POINT VA
TIDAL POTOMAC FROM COBB ISLAND MD TO SMITH POINT VA
CHESAPEAKE BAY FROM SMITH POINT TO WINDMILL POINT VA
COASTAL WATERS FROM FENWICK ISLAND DE TO CHINCOTEAGUE VA OUT 20
NM
COASTAL WATERS FROM CHINCOTEAGUE TO PARRAMORE ISLAND VA OUT 20 NM
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #3 ON WW 322
VALID 022225Z - 022340Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 30 NE CHO TO
25 N NHK TO 40 E SBY.
..HURLBUT..06/02/09
ATTN...WFO...LWX...PHI...AKQ...
&&
STATUS REPORT FOR WS 322
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
MDC009-017-019-037-039-045-047-022340-
MD
. MARYLAND COUNTIES INCLUDED ARE
CALVERT CHARLES DORCHESTER
ST. MARYS SOMERSET WICOMICO
WORCESTER
$$
VAC001-003-033-099-103-125-133-137-159-177-179-193-540-630-
022340-
VA
. VIRGINIA COUNTIES INCLUDED ARE
ACCOMACK ALBEMARLE CAROLINE
KING GEORGE LANCASTER NELSON
NORTHUMBERLAND ORANGE RICHMOND
SPOTSYLVANIA STAFFORD WESTMORELAND
VIRGINIA INDEPENDENT CITIES INCLUDED ARE
CHARLOTTESVILLE FREDERICKSBURG
$$
ANZ533-534-537-630-650-652-022340-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT MD
CHESAPEAKE BAY FROM DRUM POINT MD TO SMITH POINT VA
TIDAL POTOMAC FROM COBB ISLAND MD TO SMITH POINT VA
CHESAPEAKE BAY FROM SMITH POINT TO WINDMILL POINT VA
COASTAL WATERS FROM FENWICK ISLAND DE TO CHINCOTEAGUE VA OUT 20
NM
COASTAL WATERS FROM CHINCOTEAGUE TO PARRAMORE ISLAND VA OUT 20 NM
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #2 ON WW 322
VALID 022145Z - 022240Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 924
..HURLBUT..06/02/09
ATTN...WFO...LWX...PHI...AKQ...
&&
STATUS REPORT FOR WS 322
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
DEC001-003-005-022240-
DE
. DELAWARE COUNTIES INCLUDED ARE
KENT NEW CASTLE SUSSEX
$$
DCC001-022240-
DC
. DISTRICT OF COLUMBIA COUNTIES INCLUDED ARE
DISTRICT OF COLUMBIA
$$
MDC003-005-009-011-013-015-017-019-021-025-027-029-031-033-035-
037-039-041-045-047-510-022240-
MD
. MARYLAND COUNTIES INCLUDED ARE
ANNE ARUNDEL BALTIMORE CALVERT
CAROLINE CARROLL CECIL
CHARLES DORCHESTER FREDERICK
HARFORD HOWARD KENT
MONTGOMERY PRINCE GEORGES QUEEN ANNE'S
ST. MARYS SOMERSET TALBOT
WICOMICO WORCESTER
MARYLAND INDEPENDENT CITIES INCLUDED ARE
BALTIMORE CITY
$$
NJC001-005-007-009-011-015-021-025-029-033-022240-
NJ
. NEW JERSEY COUNTIES INCLUDED ARE
ATLANTIC BURLINGTON CAMDEN
CAPE MAY CUMBERLAND GLOUCESTER
MERCER MONMOUTH OCEAN
SALEM
$$
PAC017-029-045-091-101-022240-
PA
. PENNSYLVANIA COUNTIES INCLUDED ARE
BUCKS CHESTER DELAWARE
MONTGOMERY PHILADELPHIA
$$
VAC001-013-059-061-099-103-107-133-153-159-179-193-510-600-610-
630-683-685-022240-
VA
. VIRGINIA COUNTIES INCLUDED ARE
ACCOMACK ARLINGTON FAIRFAX
FAUQUIER KING GEORGE LANCASTER
LOUDOUN NORTHUMBERLAND PRINCE WILLIAM
RICHMOND STAFFORD WESTMORELAND
VIRGINIA INDEPENDENT CITIES INCLUDED ARE
ALEXANDRIA FAIRFAX FALLS CHURCH
FREDERICKSBURG MANASSAS MANASSAS PARK
$$
ANZ430-431-450-451-452-453-454-455-530-531-532-533-534-535-536-
537-630-650-022240-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
DELAWARE BAY WATERS NORTH OF EAST POINT NJ TO SLAUGHTER BEACH DE
DELAWARE BAY WATERS SOUTH OF EAST POINT NJ TO SLAUGHTER BEACH DE
COASTAL WATERS FROM SANDY HOOK TO MANASQUAN INLET NJ OUT 20 NM
COASTAL WATERS FROM MANASQUAN INLET TO LITTLE EGG INLET NJ OUT 20
NM
COASTAL WATERS FROM LITTLE EGG INLET TO GREAT EGG INLET NJ OUT 20
NM
COASTAL WATERS FROM GREAT EGG INLET TO CAPE MAY NJ OUT 20 NM
COASTAL WATERS FROM CAPE MAY NJ TO CAPE HENLOPEN DE OUT 20 NM
COASTAL WATERS FROM CAPE HENLOPEN TO FENWICK ISLAND DE OUT 20 NM
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
CHESAPEAKE BAY FROM SMITH POINT TO WINDMILL POINT VA
COASTAL WATERS FROM FENWICK ISLAND DE TO CHINCOTEAGUE VA OUT 20
NM
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #1 ON WW 322
VALID 021925Z - 022040Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..GUYER..06/02/09
ATTN...WFO...LWX...PHI...AKQ...
&&
STATUS REPORT FOR WS 322
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
DEC001-003-005-022040-
DE
. DELAWARE COUNTIES INCLUDED ARE
KENT NEW CASTLE SUSSEX
$$
DCC001-022040-
DC
. DISTRICT OF COLUMBIA COUNTIES INCLUDED ARE
DISTRICT OF COLUMBIA
$$
MDC003-005-009-011-013-015-017-019-021-025-027-029-031-033-035-
037-039-041-045-047-510-022040-
MD
. MARYLAND COUNTIES INCLUDED ARE
ANNE ARUNDEL BALTIMORE CALVERT
CAROLINE CARROLL CECIL
CHARLES DORCHESTER FREDERICK
HARFORD HOWARD KENT
MONTGOMERY PRINCE GEORGES QUEEN ANNE'S
ST. MARYS SOMERSET TALBOT
WICOMICO WORCESTER
MARYLAND INDEPENDENT CITIES INCLUDED ARE
BALTIMORE CITY
$$
NJC001-005-007-009-011-015-021-025-029-033-022040-
NJ
. NEW JERSEY COUNTIES INCLUDED ARE
ATLANTIC BURLINGTON CAMDEN
CAPE MAY CUMBERLAND GLOUCESTER
MERCER MONMOUTH OCEAN
SALEM
$$
PAC017-029-045-091-101-022040-
PA
. PENNSYLVANIA COUNTIES INCLUDED ARE
BUCKS CHESTER DELAWARE
MONTGOMERY PHILADELPHIA
$$
VAC001-013-059-061-099-103-107-133-153-159-179-193-510-600-610-
630-683-685-022040-
VA
. VIRGINIA COUNTIES INCLUDED ARE
ACCOMACK ARLINGTON FAIRFAX
FAUQUIER KING GEORGE LANCASTER
LOUDOUN NORTHUMBERLAND PRINCE WILLIAM
RICHMOND STAFFORD WESTMORELAND
VIRGINIA INDEPENDENT CITIES INCLUDED ARE
ALEXANDRIA FAIRFAX FALLS CHURCH
FREDERICKSBURG MANASSAS MANASSAS PARK
$$
ANZ430-431-450-451-452-453-454-455-530-531-532-533-534-535-536-
537-630-650-022040-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
DELAWARE BAY WATERS NORTH OF EAST POINT NJ TO SLAUGHTER BEACH DE
DELAWARE BAY WATERS SOUTH OF EAST POINT NJ TO SLAUGHTER BEACH DE
COASTAL WATERS FROM SANDY HOOK TO MANASQUAN INLET NJ OUT 20 NM
COASTAL WATERS FROM MANASQUAN INLET TO LITTLE EGG INLET NJ OUT 20
NM
COASTAL WATERS FROM LITTLE EGG INLET TO GREAT EGG INLET NJ OUT 20
NM
COASTAL WATERS FROM GREAT EGG INLET TO CAPE MAY NJ OUT 20 NM
COASTAL WATERS FROM CAPE MAY NJ TO CAPE HENLOPEN DE OUT 20 NM
COASTAL WATERS FROM CAPE HENLOPEN TO FENWICK ISLAND DE OUT 20 NM
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
CHESAPEAKE BAY FROM SMITH POINT TO WINDMILL POINT VA
COASTAL WATERS FROM FENWICK ISLAND DE TO CHINCOTEAGUE VA OUT 20
NM
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
Note:
Click for Complete Product Text.
Tornadoes
Probability of 2 or more tornadoes
|
Low (20%)
|
Probability of 1 or more strong (F2-F5) tornadoes
|
Low (5%)
|
Wind
Probability of 10 or more severe wind events
|
Mod (40%)
|
Probability of 1 or more wind events > 65 knots
|
Mod (30%)
|
Hail
Probability of 10 or more severe hail events
|
Mod (40%)
|
Probability
of 1 or
more hailstones > 2 inches
|
Low (20%)
|
Combined Severe Hail/Wind
Probability of 6 or more combined severe hail/wind events
|
High (80%)
|
For each watch, probabilities for particular events inside the watch
(listed above in each table) are determined by the issuing forecaster.
The "Low" category contains probability values ranging from less than 2%
to 20% (F2-F5 tornadoes), less than 5% to 20% (all other probabilities),
"Moderate" from 30% to 60%, and "High" from 70% to greater than 95%.
High values are bolded and lighter in color to provide awareness of
an increased threat for a particular event.