Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
Note: Click for
Watch Status Reports.
SEL8
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 128
NWS Storm Prediction Center Norman OK
125 PM EDT Tue Apr 21 2020
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Delaware
Eastern Maryland
New Jersey
Western Long Island New York
Eastern Pennsylvania
Coastal Waters
* Effective this Tuesday afternoon from 125 PM until 500 PM EDT.
* Primary threats include...
Scattered damaging wind gusts to 70 mph possible
SUMMARY...A fast-moving line of showers and thunderstorms will move
across the watch area this afternoon, with the potential for locally
damaging wind gusts.
The severe thunderstorm watch area is approximately along and 60
statute miles east and west of a line from 35 miles northwest of
Islip NY to 40 miles south southwest of Dover DE. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU8).
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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.
&&
AVIATION...A few severe thunderstorms with hail surface and aloft to
0.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A
few cumulonimbi with maximum tops to 400. Mean storm motion vector
27040.
...Hart
SEL8
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 128
NWS Storm Prediction Center Norman OK
125 PM EDT Tue Apr 21 2020
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Delaware
Eastern Maryland
New Jersey
Western Long Island New York
Eastern Pennsylvania
Coastal Waters
* Effective this Tuesday afternoon from 125 PM until 500 PM EDT.
* Primary threats include...
Scattered damaging wind gusts to 70 mph possible
SUMMARY...A fast-moving line of showers and thunderstorms will move
across the watch area this afternoon, with the potential for locally
damaging wind gusts.
The severe thunderstorm watch area is approximately along and 60
statute miles east and west of a line from 35 miles northwest of
Islip NY to 40 miles south southwest of Dover DE. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU8).
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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.
&&
AVIATION...A few severe thunderstorms with hail surface and aloft to
0.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A
few cumulonimbi with maximum tops to 400. Mean storm motion vector
27040.
...Hart
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW8
WW 128 SEVERE TSTM DE MD NJ NY PA CW 211725Z - 212100Z
AXIS..60 STATUTE MILES EAST AND WEST OF LINE..
35NW ISP/ISLIP NY/ - 40SSW DOV/DOVER DE/
..AVIATION COORDS.. 50NM E/W /32NNE JFK - 18NW SBY/
HAIL SURFACE AND ALOFT..0.5 INCH. WIND GUSTS..60 KNOTS.
MAX TOPS TO 400. MEAN STORM MOTION VECTOR 27040.
LAT...LON 41147241 38597464 38597686 41147472
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU8.
Watch 128 Status Report Messages:
STATUS REPORT #2 ON WW 128
VALID 211935Z - 212040Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 20 NNE SBY
TO 15 ENE ACY TO 30 ENE NEL TO 15 W ISP TO BDR.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 426
..DIAL..04/21/20
ATTN...WFO...PHI...OKX...
&&
STATUS REPORT FOR WS 128
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
NJC001-009-212040-
NJ
. NEW JERSEY COUNTIES INCLUDED ARE
ATLANTIC CAPE MAY
$$
NYC059-212040-
NY
. NEW YORK COUNTIES INCLUDED ARE
NASSAU
$$
ANZ355-431-450-451-452-453-454-455-212040-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
SANDY HOOK NJ TO FIRE ISLAND INLET NY OUT 20 NM
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 128
VALID 211830Z - 211940Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 ENE BWI
TO 15 SSW ILG TO 15 SSW TTN TO 15 SW EWR TO 30 W BDR.
..DIAL..04/21/20
ATTN...WFO...PHI...OKX...
&&
STATUS REPORT FOR WS 128
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
DEC001-003-005-211940-
DE
. DELAWARE COUNTIES INCLUDED ARE
KENT NEW CASTLE SUSSEX
$$
MDC011-015-029-035-041-211940-
MD
. MARYLAND COUNTIES INCLUDED ARE
CAROLINE CECIL KENT
QUEEN ANNE'S TALBOT
$$
NJC001-005-009-011-015-017-021-023-025-029-033-039-211940-
NJ
. NEW JERSEY COUNTIES INCLUDED ARE
ATLANTIC BURLINGTON CAPE MAY
CUMBERLAND GLOUCESTER HUDSON
MERCER MIDDLESEX MONMOUTH
OCEAN SALEM UNION
$$
NYC005-047-059-061-081-085-211940-
NY
. NEW YORK COUNTIES INCLUDED ARE
BRONX KINGS NASSAU
NEW YORK QUEENS RICHMOND
$$
ANZ338-355-430-431-450-451-452-453-454-455-211940-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
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 (<5%)
|
Probability of 1 or more strong (EF2-EF5) tornadoes
|
Low (<2%)
|
Wind
Probability of 10 or more severe wind events
|
Mod (40%)
|
Probability of 1 or more wind events > 65 knots
|
Low (10%)
|
Hail
Probability of 10 or more severe hail events
|
Low (<5%)
|
Probability of 1 or more hailstones > 2 inches
|
Low (<5%)
|
Combined Severe Hail/Wind
Probability of 6 or more combined severe hail/wind events
|
Mod (50%)
|
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% (EF2-EF5 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.
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