Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
Note: Click for
Watch Status Reports.
SEL3
0-
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 253
NWS STORM PREDICTION CENTER NORMAN OK
945 AM EDT THU APR 28 2011
THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
WESTERN CONNECTICUT
MUCH OF DELAWARE
WESTERN MASSACHUSETTS
EASTERN MARYLAND
MUCH OF NEW JERSEY
EASTERN NEW YORK
EASTERN PENNSYLVANIA
SOUTHERN VERMONT
COASTAL WATERS
EFFECTIVE THIS THURSDAY MORNING AND AFTERNOON FROM 945 AM UNTIL
400 PM EDT.
HAIL TO 1 INCH 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 55
STATUTE MILES EAST AND WEST OF A LINE FROM 45 MILES NORTH OF
GLENS FALLS NEW YORK TO 20 MILES SOUTHEAST OF DOVER DELAWARE.
FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU3).
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 249...WW 250...WW
251...WW 252...
DISCUSSION...LINE OF STRONG TO SEVERE STORMS OVER EASTERN NY/PA WILL
MOVE EASTWARD ACROSS THE WATCH AREA THROUGH THE AFTERNOON. DESPITE
ONLY MARGINAL INSTABILITY...STRONG WINDS ALOFT WILL POSE A RISK OF
LOCALLY DAMAGING WIND GUSTS NEAR THE STRONGER CONVECTIVE CORES.
AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS.
A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 450. MEAN STORM MOTION
VECTOR 22040.
...HART
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW3
WW 253 SEVERE TSTM CT DE MA MD NJ NY PA VT CW 281345Z - 282000Z
AXIS..55 STATUTE MILES EAST AND WEST OF LINE..
45N GFL/GLENS FALLS NY/ - 20SE DOV/DOVER DE/
..AVIATION COORDS.. 50NM E/W /43S PLB - 22WSW SIE/
HAIL SURFACE AND ALOFT..1 INCH. WIND GUSTS..60 KNOTS.
MAX TOPS TO 450. MEAN STORM MOTION VECTOR 22040.
LAT...LON 43977251 38917418 38917623 43977473
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU3.
Watch 253 Status Report Messages:
STATUS REPORT #4 ON WW 253
VALID 281940Z - 282Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 E NEL TO
15 SW EWR TO 30 E POU.
WW 253 WILL BE ALLOWED TO EXPIRE AT 282000Z.
..GARNER..04/28/11
ATTN...WFO...OKX...ALY...PHI...
&&
STATUS REPORT FOR WS 253
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
CTC001-282000-
CT
. CONNECTICUT COUNTIES INCLUDED ARE
FAIRFIELD
$$
NYC005-047-059-061-081-085-119-282000-
NY
. NEW YORK COUNTIES INCLUDED ARE
BRONX KINGS NASSAU
NEW YORK QUEENS RICHMOND
WESTCHESTER
$$
ANZ335-338-355-282000-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
LONG ISLAND SOUND WEST OF NEW HAVEN CT/PORT JEFFERSON NY
NEW YORK HARBOR
SANDY HOOK NJ TO FIRE ISLAND INLET NY 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 253
VALID 281835Z - 281Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 30 WSW ILG
TO 10 WNW TTN TO 25 NW POU TO 35 SE SLK.
..GARNER..04/28/11
ATTN...WFO...OKX...ALY...PHI...
&&
STATUS REPORT FOR WS 253
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
CTC001-005-281940-
CT
. CONNECTICUT COUNTIES INCLUDED ARE
FAIRFIELD LITCHFIELD
$$
DEC001-003-005-281940-
DE
. DELAWARE COUNTIES INCLUDED ARE
KENT NEW CASTLE SUSSEX
$$
MDC011-029-035-041-281940-
MD
. MARYLAND COUNTIES INCLUDED ARE
CAROLINE KENT QUEEN ANNE'S
TALBOT
$$
MAC003-281940-
MA
. MASSACHUSETTS COUNTIES INCLUDED ARE
BERKSHIRE
$$
NJC001-003-005-007-009-011-013-015-017-021-023-025-029-033-035-
039-281940-
NJ
. NEW JERSEY COUNTIES INCLUDED ARE
ATLANTIC BERGEN BURLINGTON
CAMDEN CAPE MAY CUMBERLAND
ESSEX GLOUCESTER HUDSON
MERCER MIDDLESEX MONMOUTH
OCEAN SALEM SOMERSET
UNION
$$
NYC005-021-027-047-059-061-079-081-083-085-087-115-119-281940-
NY
. NEW YORK COUNTIES INCLUDED ARE
BRONX COLUMBIA DUTCHESS
KINGS NASSAU NEW YORK
PUTNAM QUEENS RENSSELAER
RICHMOND ROCKLAND WASHINGTON
WESTCHESTER
$$
VTC003-025-281940-
VT
. VERMONT COUNTIES INCLUDED ARE
BENNINGTON WINDHAM
$$
ANZ335-338-355-430-431-450-451-452-453-454-455-281940-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
LONG ISLAND SOUND WEST OF NEW HAVEN CT/PORT JEFFERSON NY
NEW YORK HARBOR
SANDY HOOK NJ TO FIRE ISLAND INLET NY OUT 20 NM
DELAWARE BAY WATERS NORTH OF EAST POINT NJ TO SLAUGHTER BEACH DE
DELAWARE BAY WATERS SOUTH OF EAST POINT NJ TO SLAUGHTER BEACH DE
COASTAL WATERS FROM SANDY HOOK TO MANASQUAN INLET NJ OUT 20 NM
COASTAL WATERS FROM MANASQUAN INLET TO LITTLE EGG INLET NJ OUT 20
NM
COASTAL WATERS FROM LITTLE EGG INLET TO GREAT EGG INLET NJ OUT 20
NM
COASTAL WATERS FROM GREAT EGG INLET TO CAPE MAY NJ OUT 20 NM
COASTAL WATERS FROM CAPE MAY NJ TO CAPE HENLOPEN DE OUT 20 NM
COASTAL WATERS FROM CAPE HENLOPEN TO FENWICK ISLAND DE OUT 20 NM
$$
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.
$$
STATUS REPORT #2 ON WW 253
VALID 281745Z - 281Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..GARNER..04/28/11
ATTN...WFO...OKX...ALY...PHI...
&&
STATUS REPORT FOR WS 253
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
CTC001-005-281840-
CT
. CONNECTICUT COUNTIES INCLUDED ARE
FAIRFIELD LITCHFIELD
$$
DEC001-003-005-281840-
DE
. DELAWARE COUNTIES INCLUDED ARE
KENT NEW CASTLE SUSSEX
$$
MDC011-015-029-035-041-281840-
MD
. MARYLAND COUNTIES INCLUDED ARE
CAROLINE CECIL KENT
QUEEN ANNE'S TALBOT
$$
MAC003-281840-
MA
. MASSACHUSETTS COUNTIES INCLUDED ARE
BERKSHIRE
$$
NJC001-003-005-007-009-011-013-015-017-019-021-023-025-027-029-
031-033-035-037-039-041-281840-
NJ
. NEW JERSEY COUNTIES INCLUDED ARE
ATLANTIC BERGEN BURLINGTON
CAMDEN CAPE MAY CUMBERLAND
ESSEX GLOUCESTER HUDSON
HUNTERDON MERCER MIDDLESEX
MONMOUTH MORRIS OCEAN
PASSAIC SALEM SOMERSET
SUSSEX UNION WARREN
$$
NYC001-005-021-027-035-039-041-043-047-057-059-061-071-079-081-
083-085-087-091-093-095-111-113-115-119-281840-
NY
. NEW YORK COUNTIES INCLUDED ARE
ALBANY BRONX COLUMBIA
DUTCHESS FULTON GREENE
HAMILTON HERKIMER KINGS
MONTGOMERY NASSAU NEW YORK
ORANGE PUTNAM QUEENS
RENSSELAER RICHMOND ROCKLAND
SARATOGA SCHENECTADY SCHOHARIE
ULSTER WARREN WASHINGTON
WESTCHESTER
$$
PAC017-029-045-089-091-095-101-281840-
PA
. PENNSYLVANIA COUNTIES INCLUDED ARE
BUCKS CHESTER DELAWARE
MONROE MONTGOMERY NORTHAMPTON
PHILADELPHIA
$$
VTC003-025-281840-
VT
. VERMONT COUNTIES INCLUDED ARE
BENNINGTON WINDHAM
$$
ANZ335-338-355-430-431-450-451-452-453-454-455-281840-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
LONG ISLAND SOUND WEST OF NEW HAVEN CT/PORT JEFFERSON NY
NEW YORK HARBOR
SANDY HOOK NJ TO FIRE ISLAND INLET NY OUT 20 NM
DELAWARE BAY WATERS NORTH OF EAST POINT NJ TO SLAUGHTER BEACH DE
DELAWARE BAY WATERS SOUTH OF EAST POINT NJ TO SLAUGHTER BEACH DE
COASTAL WATERS FROM SANDY HOOK TO MANASQUAN INLET NJ OUT 20 NM
COASTAL WATERS FROM MANASQUAN INLET TO LITTLE EGG INLET NJ OUT 20
NM
COASTAL WATERS FROM LITTLE EGG INLET TO GREAT EGG INLET NJ OUT 20
NM
COASTAL WATERS FROM GREAT EGG INLET TO CAPE MAY NJ OUT 20 NM
COASTAL WATERS FROM CAPE MAY NJ TO CAPE HENLOPEN DE OUT 20 NM
COASTAL WATERS FROM CAPE HENLOPEN TO FENWICK ISLAND DE OUT 20 NM
$$
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.
$$
STATUS REPORT #1 ON WW 253
VALID 281630Z - 281Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 662
..GARNER..04/28/11
ATTN...WFO...OKX...ALY...PHI...
&&
STATUS REPORT FOR WS 253
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
CTC001-005-281740-
CT
. CONNECTICUT COUNTIES INCLUDED ARE
FAIRFIELD LITCHFIELD
$$
DEC001-003-005-281740-
DE
. DELAWARE COUNTIES INCLUDED ARE
KENT NEW CASTLE SUSSEX
$$
MDC011-015-029-035-041-281740-
MD
. MARYLAND COUNTIES INCLUDED ARE
CAROLINE CECIL KENT
QUEEN ANNE'S TALBOT
$$
MAC003-281740-
MA
. MASSACHUSETTS COUNTIES INCLUDED ARE
BERKSHIRE
$$
NJC001-003-005-007-009-011-013-015-017-019-021-023-025-027-029-
031-033-035-037-039-041-281740-
NJ
. NEW JERSEY COUNTIES INCLUDED ARE
ATLANTIC BERGEN BURLINGTON
CAMDEN CAPE MAY CUMBERLAND
ESSEX GLOUCESTER HUDSON
HUNTERDON MERCER MIDDLESEX
MONMOUTH MORRIS OCEAN
PASSAIC SALEM SOMERSET
SUSSEX UNION WARREN
$$
NYC001-005-021-027-035-039-041-043-047-057-059-061-071-079-081-
083-085-087-091-093-095-111-113-115-119-281740-
NY
. NEW YORK COUNTIES INCLUDED ARE
ALBANY BRONX COLUMBIA
DUTCHESS FULTON GREENE
HAMILTON HERKIMER KINGS
MONTGOMERY NASSAU NEW YORK
ORANGE PUTNAM QUEENS
RENSSELAER RICHMOND ROCKLAND
SARATOGA SCHENECTADY SCHOHARIE
ULSTER WARREN WASHINGTON
WESTCHESTER
$$
PAC017-029-045-089-091-095-101-281740-
PA
. PENNSYLVANIA COUNTIES INCLUDED ARE
BUCKS CHESTER DELAWARE
MONROE MONTGOMERY NORTHAMPTON
PHILADELPHIA
$$
VTC003-025-281740-
VT
. VERMONT COUNTIES INCLUDED ARE
BENNINGTON WINDHAM
$$
ANZ335-338-355-430-431-450-451-452-453-454-455-281740-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
LONG ISLAND SOUND WEST OF NEW HAVEN CT/PORT JEFFERSON NY
NEW YORK HARBOR
SANDY HOOK NJ TO FIRE ISLAND INLET NY OUT 20 NM
DELAWARE BAY WATERS NORTH OF EAST POINT NJ TO SLAUGHTER BEACH DE
DELAWARE BAY WATERS SOUTH OF EAST POINT NJ TO SLAUGHTER BEACH DE
COASTAL WATERS FROM SANDY HOOK TO MANASQUAN INLET NJ OUT 20 NM
COASTAL WATERS FROM MANASQUAN INLET TO LITTLE EGG INLET NJ OUT 20
NM
COASTAL WATERS FROM LITTLE EGG INLET TO GREAT EGG INLET NJ OUT 20
NM
COASTAL WATERS FROM GREAT EGG INLET TO CAPE MAY NJ OUT 20 NM
COASTAL WATERS FROM CAPE MAY NJ TO CAPE HENLOPEN DE OUT 20 NM
COASTAL WATERS FROM CAPE HENLOPEN TO FENWICK ISLAND DE OUT 20 NM
$$
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 (30%)
|
Probability of 1 or more wind events > 65 knots
|
Mod (30%)
|
Hail
Probability of 10 or more severe hail events
|
Low (10%)
|
Probability
of 1 or
more hailstones > 2 inches
|
Low (<5%)
|
Combined Severe Hail/Wind
Probability of 6 or more combined severe hail/wind events
|
High (70%)
|
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.