Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
Note: Click for
Watch Status Reports.
SEL0
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 310
NWS Storm Prediction Center Norman OK
315 PM EDT Sat Jun 27 2020
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Parts of central and southern New Jersey
Extreme southeast Pennsylvania
Coastal Waters
* Effective this Saturday afternoon and evening from 315 PM until
800 PM EDT.
* Primary threats include...
Scattered damaging wind gusts to 70 mph possible
Isolated large hail events to 1.5 inches in diameter possible
A tornado or two possible
SUMMARY...A small cluster of storms is expected to intensify while
moving east-southeastward from southeast Pennsylvania into New
Jersey this afternoon. The storm environment will favor a mix of
short line segments and supercells capable of producing damaging
winds, though an isolated tornado and hail may occur with the
strongest storms.
The severe thunderstorm watch area is approximately along and 35
statute miles north and south of a line from 30 miles north
northwest of Philadelphia PA to 30 miles east southeast of Lakehurst
NJ. For a complete depiction of the watch see the associated watch
outline update (WOUS64 KWNS WOU0).
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
1.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
29035.
...Thompson
SEL0
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 310
NWS Storm Prediction Center Norman OK
315 PM EDT Sat Jun 27 2020
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Parts of central and southern New Jersey
Extreme southeast Pennsylvania
Coastal Waters
* Effective this Saturday afternoon and evening from 315 PM until
800 PM EDT.
* Primary threats include...
Scattered damaging wind gusts to 70 mph possible
Isolated large hail events to 1.5 inches in diameter possible
A tornado or two possible
SUMMARY...A small cluster of storms is expected to intensify while
moving east-southeastward from southeast Pennsylvania into New
Jersey this afternoon. The storm environment will favor a mix of
short line segments and supercells capable of producing damaging
winds, though an isolated tornado and hail may occur with the
strongest storms.
The severe thunderstorm watch area is approximately along and 35
statute miles north and south of a line from 30 miles north
northwest of Philadelphia PA to 30 miles east southeast of Lakehurst
NJ. For a complete depiction of the watch see the associated watch
outline update (WOUS64 KWNS WOU0).
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
1.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
29035.
...Thompson
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW0
WW 310 SEVERE TSTM NJ PA CW 271915Z - 280000Z
AXIS..35 STATUTE MILES NORTH AND SOUTH OF LINE..
30NNW PHL/PHILADELPHIA PA/ - 30ESE NEL/LAKEHURST NJ/
..AVIATION COORDS.. 30NM N/S /21SSE ETX - 29E CYN/
HAIL SURFACE AND ALOFT..1.5 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 29035.
LAT...LON 40777547 40387381 39377381 39757547
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU0.
Watch 310 Status Report Messages:
STATUS REPORT #4 ON WW 310
VALID 272305Z - 280040Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 WNW PHL
TO 10 S TTN TO 10 ENE NEL TO 45 SSE JFK.
..BENTLEY..06/27/20
ATTN...WFO...PHI...
&&
STATUS REPORT FOR WS 310
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
NJC001-005-007-015-029-280040-
NJ
. NEW JERSEY COUNTIES INCLUDED ARE
ATLANTIC BURLINGTON CAMDEN
GLOUCESTER OCEAN
$$
PAC029-045-091-101-280040-
PA
. PENNSYLVANIA COUNTIES INCLUDED ARE
CHESTER DELAWARE MONTGOMERY
PHILADELPHIA
$$
ANZ450-451-452-280040-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
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
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #3 ON WW 310
VALID 272225Z - 272340Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 SSW ABE
TO 10 S TTN TO 15 E NEL TO 45 SSE JFK.
..BENTLEY..06/27/20
ATTN...WFO...PHI...
&&
STATUS REPORT FOR WS 310
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
NJC001-005-007-015-021-025-029-272340-
NJ
. NEW JERSEY COUNTIES INCLUDED ARE
ATLANTIC BURLINGTON CAMDEN
GLOUCESTER MERCER MONMOUTH
OCEAN
$$
PAC011-017-029-045-091-101-272340-
PA
. PENNSYLVANIA COUNTIES INCLUDED ARE
BERKS BUCKS CHESTER
DELAWARE MONTGOMERY PHILADELPHIA
$$
ANZ450-451-452-272340-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
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
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #2 ON WW 310
VALID 272200Z - 272340Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 10 WNW ABE
TO 20 N TTN TO 15 SE JFK.
..BENTLEY..06/27/20
ATTN...WFO...PHI...
&&
STATUS REPORT FOR WS 310
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
NJC001-005-007-015-019-021-023-025-029-035-272340-
NJ
. NEW JERSEY COUNTIES INCLUDED ARE
ATLANTIC BURLINGTON CAMDEN
GLOUCESTER HUNTERDON MERCER
MIDDLESEX MONMOUTH OCEAN
SOMERSET
$$
PAC011-017-029-045-091-101-272340-
PA
. PENNSYLVANIA COUNTIES INCLUDED ARE
BERKS BUCKS CHESTER
DELAWARE MONTGOMERY PHILADELPHIA
$$
ANZ450-451-452-272340-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
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
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #1 ON WW 310
VALID 272030Z - 272140Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1024
..JEWELL..06/27/20
ATTN...WFO...PHI...
&&
STATUS REPORT FOR WS 310
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
NJC001-005-007-015-019-021-023-025-029-035-272140-
NJ
. NEW JERSEY COUNTIES INCLUDED ARE
ATLANTIC BURLINGTON CAMDEN
GLOUCESTER HUNTERDON MERCER
MIDDLESEX MONMOUTH OCEAN
SOMERSET
$$
PAC011-017-029-045-091-101-272140-
PA
. PENNSYLVANIA COUNTIES INCLUDED ARE
BERKS BUCKS CHESTER
DELAWARE MONTGOMERY PHILADELPHIA
$$
ANZ450-451-452-272140-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
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
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
Note:
Click for Complete Product Text.
Tornadoes
Probability of 2 or more tornadoes
|
Low (20%)
|
Probability of 1 or more strong (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 (20%)
|
Hail
Probability of 10 or more severe hail events
|
Low (20%)
|
Probability of 1 or more hailstones > 2 inches
|
Low (10%)
|
Combined Severe Hail/Wind
Probability of 6 or more combined severe hail/wind events
|
Mod (60%)
|
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.