Severe Thunderstorm Warning 179, NWS State College, PA

622 
WWUS51 KCTP 230021
SVSCTP

Severe Weather Statement
National Weather Service State College PA
821 PM EDT TUE AUG 22 2017

PAC043-075-230045-
/O.CON.KCTP.SV.W.0179.000000T0000Z-170823T0045Z/
Dauphin PA-Lebanon PA-
821 PM EDT TUE AUG 22 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 PM EDT
FOR EAST CENTRAL DAUPHIN AND LEBANON COUNTIES...

At 820 PM EDT, a severe thunderstorm was located over Fredericksburg,
moving east at 35 mph.

HAZARD...60 mph wind gusts. 

SOURCE...Radar indicated. 

IMPACT...Expect damage to trees and power lines. 

Locations impacted include...
Myerstown, Cornwall, Palmyra, Annville, Lebanon, Hershey, Harper
Tavern, Timber Hills, Lawn and Richland.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

This thunderstorm is capable of producing all types of severe weather
including extremely large hail, destructive straight line winds and
tornadoes. Move quickly to a safe shelter, such as an interior room,
a bathroom or closet or basement.

&&

LAT...LON 4026 7629 4021 7657 4045 7675 4050 7645
      4037 7625 4036 7620 4032 7615
TIME...MOT...LOC 0020Z 257DEG 31KT 4045 7639 

HAIL...<.75IN
WIND...60MPH
 
$$

CR

Area Forecast Discussion
National Weather Service State College PA
751 PM EDT Tue Aug 22 2017

.SYNOPSIS...

A strong cold front will move through the region overnight.
Much cooler and drier conditions will return for the second half
of the week into the weekend. Temperatures will average a few
degrees below normal highs starting tomorrow and lasting into
early next week.

&&

.NEAR TERM /UNTIL 8 AM WEDNESDAY MORNING/...

The convection is moving into what's left of the best
instability over my SERN zones. RAP indicates helicity is very
impressive and we have seen individual cells display rotation as
they race ENE. The best chance for a severe storm remains over
these eastern areas with the best shear and instability.

The actual cold front is still just entering central Ohio so
there will be a chance of a shower or thunderstorm until the
boundary ultimately passes later this evening.

POPs will taper off rapidly after midnight as drier air moves in
behind the front.

Behind the line POPS drop fast and drier air comes. Some areas
of fog possible. But a cooler and drier AM Wednesday.

&&

.SHORT TERM /8 AM WEDNESDAY MORNING THROUGH 6 PM WEDNESDAY/...
Wednesday will be noticeably drier as the PW values crash to -1
sigma below normal after being well +1 to +2 sigma above
normal. It will also be significantly cooler. The 850 hPa
temperatures fall to near normal Wednesday and will fall below
normal overnight Wednesday into Thursday.

Chance of rain should be very low Wednesday.

The cool air aloft will likely produce some cumulus in the
mountains during the afternoon hours.

It should be a nice and notably cooler day.

&&

.LONG TERM /WEDNESDAY NIGHT THROUGH TUESDAY/...
An extended period of early autumn-like weather will begin
Wednesday and continue right through the upcoming weekend as a
-2 sigma upper trough (and similarly anomalous/cool 850 mb
 temps) move over the Great Lakes and NE U.S.

1026-1028 mb SFC High (+2-3 Sigma) over south-central Canada
will drift slowly to the Great Lakes by this weekend

Daytime high temps will be about 5-7 Deg F below normal across
the Western Mtns on Wednesday, though still just slightly below
normal across the SE zones prior to the arrival of the
deeper/colder air for the latter part of the week.

GEFS mean 850 mb temps will dip about 2-3 deg C in all locations
for Thursday-Sunday, leading to max temps averaging 5-10 F
below normal (with min temp departures about 10-13F below
normal Friday-Sunday) as a large Canadian High Pressure area
pushes SE across the Glakes Region and becomes centered over the
NE states.

Lows Fri/Sat/Sun mornings with high centered overhead will be
dipping into the l-m 40s over the Northern Mountains (and deeper
valleys of the Central Mountains) and solidly into the 50s
elsewhere. Some of the perennial cold spots near and to the east
of KBFD could see readings of 38 or 39F.

&&

.AVIATION /00Z WEDNESDAY THROUGH SUNDAY/...
Most of the eastern areas mostly sunny with some cumulus clouds
about making for a bumpy ride in the boundary layer. Over
western PA and OH there is a line of strong and severe storms.
Strong winds and large hail are possible. Check radar before
flying over western PA this afternoon and central areas this
evening.

The line of storms will move east this afternoon and evening.

Areas of patchy fog will develop around/after midnight. Spotty
MVFR and IFR.

Conditions will improve rapidly Wednesday morning, as cool
Canadian high pressure builds into the area.

.OUTLOOK...

Wed...AM low cigs BFD/JST, otherwise VFR.
Thu-Sat...No sig wx expected.

&&

.EQUIPMENT...
KCCX is fixed with new motor installed.

&&

.CTP WATCHES/WARNINGS/ADVISORIES...
None.

&&

SYNOPSIS...Dangelo/La Corte
NEAR TERM...Grumm/La Corte
SHORT TERM...Grumm
LONG TERM...La Corte/Lambert
AVIATION...Grumm/Lambert
EQUIPMENT...

Hazardous Weather Outlook
National Weather Service State College PA
744 PM EDT Tue Aug 22 2017

PAZ037-041-042-046-232345-
Tioga-Northern Lycoming-Sullivan-Southern Lycoming-
744 PM EDT Tue Aug 22 2017

...TORNADO WATCH 461 IN EFFECT UNTIL 9 PM EDT THIS EVENING...

This Hazardous Weather Outlook is for central Pennsylvania.

.DAY ONE...Tonight.

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

   Tornado Watch.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

PAZ006-012-045-232345-
Potter-Northern Clinton-Southern Clinton-
744 PM EDT Tue Aug 22 2017

This Hazardous Weather Outlook is for central Pennsylvania.

.DAY ONE...Tonight.

The probability of widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

PAZ028-036-049>053-056>059-063>066-232345-
Juniata-Franklin-Union-Snyder-Montour-Northumberland-Columbia-Perry-
Dauphin-Schuylkill-Lebanon-Cumberland-Adams-York-Lancaster-
744 PM EDT Tue Aug 22 2017

...SEVERE THUNDERSTORM WATCH 464 IN EFFECT UNTIL MIDNIGHT EDT
TONIGHT...

This Hazardous Weather Outlook is for central Pennsylvania.

.DAY ONE...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.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

PAZ027-035-232345-
Mifflin-Fulton-
744 PM EDT Tue Aug 22 2017

This Hazardous Weather Outlook is for central Pennsylvania.

.DAY ONE...Tonight.

The probability of widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

PAZ018-019-025-026-034-232345-
Northern Centre-Southern Centre-Blair-Huntingdon-Bedford-
744 PM EDT Tue Aug 22 2017

This Hazardous Weather Outlook is for central Pennsylvania.

.DAY ONE...Tonight.

The probability of widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

PAZ004-005-010-011-017-024-033-232345-
Warren-McKean-Elk-Cameron-Clearfield-Cambria-Somerset-
744 PM EDT Tue Aug 22 2017

This Hazardous Weather Outlook is for central Pennsylvania.

.DAY ONE...Tonight.

The probability of widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

Special Weather Statement
National Weather Service State College PA
714 PM EDT TUE AUG 22 2017

PAZ056>058-222345-
Perry PA-Dauphin PA-Schuylkill PA-
714 PM EDT TUE AUG 22 2017

...A STRONG THUNDERSTORM WILL AFFECT PARTS OF SCHUYLKILL...DAUPHIN...
AND PERRY COUNTIES UNTIL 745 PM EDT...

At 712 PM EDT, Doppler radar indicated a strong thunderstorm near
Newport, moving east at 25 mph. Another strong thunderstorm was
located just west of Tower City.

Dime size hail and wind gusts up to 50 mph are possible with these
storms.

Locations impacted include...
Ashland, Newport, Beurys Lake, Lykens, Buck Run, Tower City,
Millersburg, Donaldson, Klingerstown, New Buffalo, Fountain Springs,
Forrestville, Williamstown, Lavelle, Elizabethville, Branchdale,
Tremont, Locustdale, Girardville and Newtown.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 4042 7709 4049 7720 4057 7715 4060 7707
      4061 7701 4063 7695 4060 7692 4063 7686
      4062 7684 4065 7680 4064 7679 4066 7671
      4081 7630 4062 7627
TIME...MOT...LOC 2312Z 263DEG 23KT 4052 7707

Lambert

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
732 PM EDT TUE AUG 22 2017

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

0715 PM     TSTM WND DMG     LIVERPOOL               40.57N  76.99W
08/22/2017                   PERRY              PA   TRAINED SPOTTER

            MULTIPLE TREES DOWN

&&

EVENT NUMBER CTP1701435

CR

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
740 PM EDT TUE AUG 22 2017

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

0725 PM     TSTM WND DMG     MILLERSBURG             40.54N  76.96W
08/22/2017                   DAUPHIN            PA   COUNTY OFFICIAL

            TREES DOWN ON SHIPPEN DAM ROAD AND ROUTE 145.

&&

EVENT NUMBER CTP1701436

RXR

Special Weather Statement
National Weather Service State College PA
741 PM EDT TUE AUG 22 2017

PAZ036-063>065-230015-
York PA-Adams PA-Franklin PA-Cumberland PA-
741 PM EDT TUE AUG 22 2017

...A STRONG THUNDERSTORM WILL AFFECT PARTS OF ADAMS...YORK...
FRANKLIN...AND CUMBERLAND COUNTIES UNTIL 815 PM EDT...

At 738 PM EDT, Doppler radar indicated a strong thunderstorm near
Shippensburg, moving east at 45 mph.

Pea size hail and wind gusts up to 50 mph are possible.

This strong thunderstorm will be near...
  Pine Grove Furnace around 750 PM EDT.
  Aspers around 755 PM EDT.
  Mount Holly Springs around 800 PM EDT.
  Lake Meade and Boiling Springs around 805 PM EDT.
  Dillsburg around 810 PM EDT.
  Siddonsburg around 815 PM EDT.

Other locations impacted by this storm include Arendtsville,
Heidlersburg, Biglerville, Franklintown and Idaville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This storm 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 3986 7753 3991 7761 4003 7760 4019 7697
      3989 7694
TIME...MOT...LOC 2338Z 253DEG 40KT 3997 7746

Lambert

Special Weather Statement
National Weather Service State College PA
750 PM EDT TUE AUG 22 2017

PAZ058-230015-
Schuylkill PA-
750 PM EDT TUE AUG 22 2017

...A STRONG THUNDERSTORM WILL AFFECT PARTS OF SCHUYLKILL COUNTY UNTIL
815 PM EDT...

At 750 PM EDT, Doppler radar indicated a strong thunderstorm near
Mcadoo, moving northeast at 45 mph.

Dime size hail and wind gusts up to 50 mph are possible.

Locations impacted include...
Tamaqua, Mahanoy City, Sheppton, Brandonville, Oneida, Grier
City-Park Crest, Mcadoo, Delano, Hometown, New Boston-Morea,
Coaldale, Park Place, Trenton and Kelayres.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This storm 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.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
office in State College PA.

&&

LAT...LON 4078 7608 4081 7618 4092 7617 4093 7613
      4090 7604 4091 7600 4081 7589
TIME...MOT...LOC 2350Z 244DEG 41KT 4088 7604

Lambert

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
754 PM EDT TUE AUG 22 2017

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

0722 PM     TSTM WND DMG     MILLERSBURG             40.54N  76.96W
08/22/2017                   DAUPHIN            PA   911 CALL CENTER

            TREES DOWN

&&

EVENT NUMBER CTP1701437

KF