Special Weather Statement, NWS State College, PA

Area Forecast Discussion
National Weather Service State College PA
247 PM EDT Wed Jul 22 2020

.SYNOPSIS...
As a weak cold front slowly approaches the Commonwealth, at
least scattered showers and thunderstorms will be in the
forecast into Thursday evening.

Friday through the weekend looks drier, as high pressure builds
back into the region. Temperatures will also trend hotter again
over the course of the weekend.

&&

.NEAR TERM /THROUGH TONIGHT/...
245 pm update... An environment supportive of isolated damaging
wind gusts (ML CAPE of 1000-2000 j/kg and DCAPE near 1000 j/kg)
will persist late this afternoon over the south-central
mountains and the Lower-Middle Susquehanna Valley, hence
continuation of a Severe Thunderstorm Watch. Elsewhere,
convection looks much more isolated-widely scattered.

Tonight, as a weak surface boundary slowly approaches the
Commonwealth from the Ohio Valley and the eastern Great Lakes,
coverage of showers/embedded thunderstorms should begin to
increase late at night, particularly over the Alleghenies.

Lows by daybreak should range from the mid 60s over the higher
terrain, to the lower 70s in the Susquehanna Valley.

&&

.SHORT TERM /THURSDAY THROUGH THURSDAY NIGHT/...
3 pm update... Thursday should again feature numerous and diurnally
enhanced showers and thunderstorms, as the weak frontal
boundary mentioned in the previous section trudges across the
Commonwealth. Overall, more in the way of cloud cover as
compared to what we saw today should temper instability
somewhat, but a few stronger storms cannot be ruled out over
the Susquehanna Valley. Afternoon highs will be a tad cooler
Thursday, ranging from the upper 70s in the Alleghenies, to near
90 in the Lower Susquehanna Valley.

Thursday night, any residual convection will push slowly
southeastward, with much of central PA most likely staying
rain-free. Lows by daybreak will range from near 60 in the
northern mountains, to around 70 in the Lower Susquehanna
Valley.

&&

.LONG TERM /FRIDAY THROUGH TUESDAY/...
A drier pattern appears likely into the weekend under building
high pressure surface and aloft. Chance of showers and storms
once again will increase early nest week, as dewpoints creep
back up, the ridge flattens and the next frontal system drops
across the Great Lakes into the area. Pattern favors weak
ridging across the mountains, and a lee trough to the east. This
will play a factor in the daily or lack of daily afternoon
showers and storms. Temperatures will remain above average and
trend hotter for late weekend into early next week before
gradually slipping back toward normal midweek.

&&

.AVIATION /19Z WEDNESDAY THROUGH MONDAY/...
18z update... Any restrictions this afternoon and early evening
will be fairly brief and due to showers and thunderstorms, most
likely at KIPT, KMDT, and KLNS.

During the pre-dawn hours, another batch of showers will
approach the Alleghenies, with restrictive ceilings most likely
to occur at KBFD and KJST.

Thursday, residual early morning restrictions at KBFD and KJST
should lift by 13-15z. Elsewhere, any additional restrictions
from showers and thunderstorms will probably hold off until near
or after 18z.

Outlook...

Fri...Early morning fog/low ceilings possible, otherwise VFR.

Sat-Mon...Mostly VFR expected.

&&

.CLIMATE...
Through 7/21, the average July temperature at Harrisburg is
81.8F or +5.9 degrees above normal - ranking as a tie for the
warmest on record so far with 1999. With persistent heat/above
average temps expected through the end of the month, it's
looking increasingly likely that July 2020 could be the warmest
July on record. Williamsport is tracking 4th warmest July month-
to-date while State College is having its warmest July on
record besting 1955 by 0.3 degrees.

&&

.CTP WATCHES/WARNINGS/ADVISORIES...
Heat Advisory until 8 PM EDT this evening for PAZ036-056-057-
059-063>066.

&&

SYNOPSIS...Jurewicz
NEAR TERM...Jurewicz
SHORT TERM...Jurewicz
LONG TERM...DeVoir/RXR
AVIATION...Jurewicz
CLIMATE...

Hazardous Weather Outlook
National Weather Service State College PA
109 PM EDT Wed Jul 22 2020

PAZ004-005-231100-
Warren-McKean-
109 PM EDT Wed Jul 22 2020

This Hazardous Weather Outlook is for central Pennsylvania.

.DAY ONE...This afternoon and tonight.

Isolated strong to severe thunderstorms with gusty winds are
possible this afternoon.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to report significant hazardous weather.

PAZ006-010>012-037-041-042-045-046-231100-
Potter-Elk-Cameron-Northern Clinton-Tioga-Northern Lycoming-Sullivan-
Southern Clinton-Southern Lycoming-
109 PM EDT Wed Jul 22 2020

This Hazardous Weather Outlook is for central Pennsylvania.

.DAY ONE...This afternoon and tonight.

Widely scattered severe thunderstorms with damaging winds 60 mph or
greater are possible this afternoon and evening.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to report significant hazardous weather.

PAZ051-053-231100-
Montour-Columbia-
109 PM EDT Wed Jul 22 2020

...SEVERE THUNDERSTORM WATCH 393 IN EFFECT UNTIL 7 PM EDT THIS
EVENING...

This Hazardous Weather Outlook is for central Pennsylvania.

.DAY ONE...This afternoon and tonight.

Please listen to NOAA Weather Radio or go to
weather.gov/StateCollege on the internet for more
information about the following hazards.

   Severe Thunderstorm Watch.

Severe thunderstorms with damaging winds 60 mph or greater are
are expected this afternoon and evening.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to report significant hazardous weather.

PAZ018-019-025>028-049-050-052-058-231100-
Northern Centre-Southern Centre-Blair-Huntingdon-Mifflin-Juniata-
Union-Snyder-Northumberland-Schuylkill-
109 PM EDT Wed Jul 22 2020

...SEVERE THUNDERSTORM WATCH 393 IN EFFECT UNTIL 7 PM EDT THIS
EVENING...

This Hazardous Weather Outlook is for central Pennsylvania.

.DAY ONE...This afternoon and tonight.

Please listen to NOAA Weather Radio or go to
weather.gov/StateCollege on the internet for more
information about the following hazards.

   Severe Thunderstorm Watch.

Severe thunderstorms with damaging winds 60 mph or greater are
expected this afternoon and evening. Localized flooding is also
possible mainly in areas that can experience rapid runoff from heavy
rainfall.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to report significant hazardous weather.

PAZ017-231100-
Clearfield-
109 PM EDT Wed Jul 22 2020

This Hazardous Weather Outlook is for central Pennsylvania.

.DAY ONE...This afternoon and tonight.

Widely scattered severe thunderstorms with damaging winds 60 mph or
greater are possible this afternoon and evening. Localized flooding
is also possible mainly in areas that can experience rapid runoff
from heavy rainfall.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to report significant hazardous weather.

PAZ024-033>035-231100-
Cambria-Somerset-Bedford-Fulton-
109 PM EDT Wed Jul 22 2020

...SEVERE THUNDERSTORM WATCH 393 IN EFFECT UNTIL 7 PM EDT THIS
EVENING...

This Hazardous Weather Outlook is for central Pennsylvania.

.DAY ONE...This afternoon and tonight.

Please listen to NOAA Weather Radio or go to
weather.gov/StateCollege on the internet for more
information about the following hazards.

   Severe Thunderstorm Watch.

Severe thunderstorms with damaging winds 60 mph or greater are
expected this afternoon and evening. Isolated flooding is also
possible mainly in areas that can experience rapid runoff from heavy
rainfall.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to report significant hazardous weather.

PAZ036-231100-
Franklin-
109 PM EDT Wed Jul 22 2020

...HEAT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING...
...SEVERE THUNDERSTORM WATCH 393 IN EFFECT UNTIL 7 PM EDT THIS
EVENING...

This Hazardous Weather Outlook is for central Pennsylvania.

.DAY ONE...This afternoon and tonight.

Please listen to NOAA Weather Radio or go to
weather.gov/StateCollege on the internet for more
information about the following hazards.

   Heat Advisory.
   Severe Thunderstorm Watch.

Severe thunderstorms with damaging winds 60 mph or greater are
expected this afternoon and evening. Isolated flooding is also
possible mainly in areas that can experience rapid runoff from heavy
rainfall.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to report significant hazardous weather.

PAZ056-057-059-063>066-231100-
Perry-Dauphin-Lebanon-Cumberland-Adams-York-Lancaster-
109 PM EDT Wed Jul 22 2020

...HEAT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING...
...SEVERE THUNDERSTORM WATCH 393 IN EFFECT UNTIL 7 PM EDT THIS
EVENING...

This Hazardous Weather Outlook is for central Pennsylvania.

.DAY ONE...This afternoon and tonight.

Please listen to NOAA Weather Radio or go to
weather.gov/StateCollege on the internet for more
information about the following hazards.

   Heat Advisory.
   Severe Thunderstorm Watch.

Severe thunderstorms with damaging winds 60 mph or greater are
expected this afternoon and evening. Isolated flooding is also
possible mainly in areas that can experience rapid runoff from heavy
rainfall.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to report significant hazardous weather.

Martin

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
311 PM EDT WED JUL 22 2020

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0146 PM     TSTM WND DMG     HANOVER                 39.81N 76.98W
07/22/2020                   YORK               PA   911 CALL CENTER

            TREES AND WIRES DOWN. REPORTED ALONG THE
            LINE BETWEEN HANOVER AND SPRING GROVE.

&&

AW

Special Weather Statement
National Weather Service State College PA
313 PM EDT Wed Jul 22 2020

PAZ042-046-053-221945-
Columbia PA-Southern Lycoming PA-Sullivan PA-
313 PM EDT Wed Jul 22 2020

...A STRONG THUNDERSTORM WILL AFFECT PARTS OF LYCOMING...COLUMBIA...
AND SULLIVAN COUNTIES UNTIL 345 PM EDT...

At 312 PM EDT, Doppler radar indicated a strong thunderstorm over
Lairdsville, moving east at 30 mph.

Wind gusts 40 to 50 mph and pea size hail are possible.

Locations impacted include...
Jamison City, Waller, Fairmount Spgs, Biggertown, Lairdsville,
Ricketts Glen State Park, Central, Muncy Valley and Benton.

LAT...LON 4131 7631 4120 7632 4117 7630 4116 7667
      4134 7670 4131 7660 4135 7665 4143 7627
TIME...MOT...LOC 1912Z 261DEG 25KT 4126 7658

Martin

Special Weather Statement
National Weather Service State College PA
321 PM EDT Wed Jul 22 2020

PAZ057>059-221945-
Lebanon PA-Dauphin PA-Schuylkill PA-
321 PM EDT Wed Jul 22 2020

...STRONG THUNDERSTORMS WILL AFFECT PARTS OF SCHUYLKILL...DAUPHIN...
AND LEBANON COUNTIES UNTIL 345 PM EDT...

At 321 PM EDT, Doppler radar indicated strong thunderstorms along a
line extending from near Williamstown to Rutherford. Movement was
east at 30 mph.

Wind gusts 40 to 50 mph are possible.

Locations impacted include...
Harrisburg, Lebanon, Hershey, Colonial Park, Progress, Palmyra,
Linglestown, Steelton, Annville, Hummelstown, Cornwall, Paxtonia,
Rutherford, Skyline View, Lawnton, Campbelltown,
Bressler-Enhaut-Oberlin, Pleasant Hill, Sand Hill and Lebanon South.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with these storms, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with these storms.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

These storms may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

&&

LAT...LON 4051 7626 4052 7634 4049 7644 4041 7631
      4025 7639 4019 7657 4023 7686 4060 7667
      4065 7620
TIME...MOT...LOC 1921Z 272DEG 28KT 4054 7662 4029 7674

Banghoff

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