Storm Prediction Center Severe Thunderstorm Watch 471
4 min read
7 hours ago
Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended. Note: Click for Watch Status Reports.
SEL1
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 471
NWS Storm Prediction Center Norman OK
1150 AM EDT Sat Jun 28 2025
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Southern New York
Western and Central Pennsylvania
* Effective this Saturday morning and evening from 1150 AM until
800 PM EDT.
* Primary threats include...
Scattered damaging wind gusts to 70 mph possible
SUMMARY...Thunderstorms will increase in coverage and intensity
through the day across the watch area, ahead of an approaching cold
front. The strongest cells will pose a risk of locally damaging
wind gusts.
The severe thunderstorm watch area is approximately along and 60
statute miles north and south of a line from 15 miles north of
Latrobe PA to 50 miles east northeast of Binghamton NY. For a
complete depiction of the watch see the associated watch outline
update (WOUS64 KWNS WOU1).
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 inch. Extreme turbulence and surface wind gusts to 60 knots. A few
cumulonimbi with maximum tops to 500. Mean storm motion vector
24025.
...Hart
SEL1
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 471
NWS Storm Prediction Center Norman OK
1150 AM EDT Sat Jun 28 2025
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Southern New York
Western and Central Pennsylvania
* Effective this Saturday morning and evening from 1150 AM until
800 PM EDT.
* Primary threats include...
Scattered damaging wind gusts to 70 mph possible
SUMMARY...Thunderstorms will increase in coverage and intensity
through the day across the watch area, ahead of an approaching cold
front. The strongest cells will pose a risk of locally damaging
wind gusts.
The severe thunderstorm watch area is approximately along and 60
statute miles north and south of a line from 15 miles north of
Latrobe PA to 50 miles east northeast of Binghamton NY. For a
complete depiction of the watch see the associated watch outline
update (WOUS64 KWNS WOU1).
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 inch. Extreme turbulence and surface wind gusts to 60 knots. A few
cumulonimbi with maximum tops to 500. Mean storm motion vector
24025.
...Hart
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW1
WW 471 SEVERE TSTM NY PA 281550Z - 290000Z
AXIS..60 STATUTE MILES NORTH AND SOUTH OF LINE..
15N LBE/LATROBE PA/ - 50ENE BGM/BINGHAMTON NY/
..AVIATION COORDS.. 50NM N/S /28WNW JST - 27NNE HNK/
HAIL SURFACE AND ALOFT..1 INCH. WIND GUSTS..60 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 24025.
LAT...LON 41377940 43347507 41617507 39637940
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU1.
Watch 471 Status Report Messages:
STATUS REPORT #1 ON WW 471
VALID 281630Z - 281740Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..GRAMS..06/28/25
ATTN...WFO...BUF...BGM...PBZ...CTP...
&&
STATUS REPORT FOR WS 471
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
NYC003-007-009-011-015-017-023-053-065-067-097-099-101-107-109-
123-281740-
NY
. NEW YORK COUNTIES INCLUDED ARE
ALLEGANY BROOME CATTARAUGUS
CAYUGA CHEMUNG CHENANGO
CORTLAND MADISON ONEIDA
ONONDAGA SCHUYLER SENECA
STEUBEN TIOGA TOMPKINS
YATES
$$
PAC005-009-013-015-021-023-027-031-033-035-037-041-043-047-053-
055-057-061-063-065-067-069-079-081-083-087-093-097-099-105-107-
109-111-113-115-117-119-127-129-131-281740-
PA
. PENNSYLVANIA COUNTIES INCLUDED ARE
ARMSTRONG BEDFORD BLAIR
BRADFORD CAMBRIA CAMERON
CENTRE CLARION CLEARFIELD
CLINTON COLUMBIA CUMBERLAND
DAUPHIN ELK FOREST
FRANKLIN FULTON HUNTINGDON
INDIANA JEFFERSON JUNIATA
LACKAWANNA LUZERNE LYCOMING
MCKEAN MIFFLIN MONTOUR
NORTHUMBERLAND PERRY POTTER
SCHUYLKILL SNYDER SOMERSET
SULLIVAN SUSQUEHANNA TIOGA
UNION WAYNE WESTMORELAND
WYOMING
$$
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.
$$
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 (<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.
