Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
Note: Click for
Watch Status Reports.
SEL4
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 484
NWS Storm Prediction Center Norman OK
455 PM EDT Sat Jun 29 2024
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Western New Jersey
Eastern Pennsylvania
* Effective this Saturday afternoon and evening from 455 PM until
1100 PM EDT.
* Primary threats include...
Scattered damaging wind gusts to 70 mph possible
A tornado or two possible
SUMMARY...A line of thunderstorms moving eastward should pose some
risk for severe/damaging winds late this afternoon into the evening,
perhaps up to 60-70 mph.
The severe thunderstorm watch area is approximately along and 40
statute miles east and west of a line from 35 miles north of
Allentown PA to 30 miles west southwest of Philadelphia PA. For a
complete depiction of the watch see the associated watch outline
update (WOUS64 KWNS WOU4).
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.
&&
OTHER WATCH INFORMATION...CONTINUE...WW 482...WW 483...
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 500. Mean storm motion vector
27035.
...Gleason
SEL4
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 484
NWS Storm Prediction Center Norman OK
455 PM EDT Sat Jun 29 2024
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Western New Jersey
Eastern Pennsylvania
* Effective this Saturday afternoon and evening from 455 PM until
1100 PM EDT.
* Primary threats include...
Scattered damaging wind gusts to 70 mph possible
A tornado or two possible
SUMMARY...A line of thunderstorms moving eastward should pose some
risk for severe/damaging winds late this afternoon into the evening,
perhaps up to 60-70 mph.
The severe thunderstorm watch area is approximately along and 40
statute miles east and west of a line from 35 miles north of
Allentown PA to 30 miles west southwest of Philadelphia PA. For a
complete depiction of the watch see the associated watch outline
update (WOUS64 KWNS WOU4).
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.
&&
OTHER WATCH INFORMATION...CONTINUE...WW 482...WW 483...
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 500. Mean storm motion vector
27035.
...Gleason
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW4
WW 484 SEVERE TSTM NJ PA 292055Z - 300300Z
AXIS..40 STATUTE MILES EAST AND WEST OF LINE..
35N ABE/ALLENTOWN PA/ - 30WSW PHL/PHILADELPHIA PA/
..AVIATION COORDS.. 35NM E/W /36NNE ETX - 53S ETX/
HAIL SURFACE AND ALOFT..1 INCH. WIND GUSTS..60 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 27035.
LAT...LON 41157466 39687501 39687651 41157619
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU4.
Watch 484 Status Report Messages:
STATUS REPORT #4 ON WW 484
VALID 300130Z - 300300Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 5 N ILG TO
20 N TTN.
WW 484 WILL BE ALLOWED TO EXPIRE AT 300300Z.
..GRAMS..06/30/24
ATTN...WFO...PHI...
&&
STATUS REPORT FOR WS 484
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
NJC019-300300-
NJ
. NEW JERSEY COUNTIES INCLUDED ARE
HUNTERDON
$$
PAC017-045-101-300300-
PA
. PENNSYLVANIA COUNTIES INCLUDED ARE
BUCKS DELAWARE PHILADELPHIA
$$
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.
$$
STATUS REPORT #3 ON WW 484
VALID 300040Z - 300140Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 15 ESE CXY
TO 15 WNW EWR.
..WEINMAN..06/30/24
ATTN...WFO...PHI...
&&
STATUS REPORT FOR WS 484
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
NJC019-300140-
NJ
. NEW JERSEY COUNTIES INCLUDED ARE
HUNTERDON
$$
PAC017-029-045-091-101-300140-
PA
. PENNSYLVANIA COUNTIES INCLUDED ARE
BUCKS CHESTER DELAWARE
MONTGOMERY PHILADELPHIA
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #2 ON WW 484
VALID 292345Z - 300040Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 20 NNE CXY
TO 30 N EWR.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1481
..WEINMAN..06/29/24
ATTN...WFO...PHI...
&&
STATUS REPORT FOR WS 484
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
NJC019-041-300040-
NJ
. NEW JERSEY COUNTIES INCLUDED ARE
HUNTERDON WARREN
$$
PAC011-017-029-045-077-091-095-101-300040-
PA
. PENNSYLVANIA COUNTIES INCLUDED ARE
BERKS BUCKS CHESTER
DELAWARE LEHIGH MONTGOMERY
NORTHAMPTON PHILADELPHIA
$$
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.
$$
STATUS REPORT #1 ON WW 484
VALID 292250Z - 292340Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1481
..WEINMAN..06/29/24
ATTN...WFO...PHI...
&&
STATUS REPORT FOR WS 484
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
NJC019-041-292340-
NJ
. NEW JERSEY COUNTIES INCLUDED ARE
HUNTERDON WARREN
$$
PAC011-017-025-029-045-077-089-091-095-101-292340-
PA
. PENNSYLVANIA COUNTIES INCLUDED ARE
BERKS BUCKS CARBON
CHESTER DELAWARE LEHIGH
MONROE MONTGOMERY NORTHAMPTON
PHILADELPHIA
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
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 (5%)
|
Wind
Probability of 10 or more severe wind events
|
Mod (50%)
|
Probability of 1 or more wind events > 65 knots
|
Low (20%)
|
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
|
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.