Severe Thunderstorm Warning 45, NWS State College, PA

950 
WWUS51 KCTP 152111
SVSCTP

Severe Weather Statement
National Weather Service State College PA
511 PM EDT TUE MAY 15 2018

PAC043-071-075-133-152200-
/O.CON.KCTP.SV.W.0045.000000T0000Z-180515T2200Z/
Lancaster PA-York PA-Dauphin PA-Lebanon PA-
511 PM EDT TUE MAY 15 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 600 PM EDT
FOR LANCASTER...CENTRAL YORK...SOUTHEASTERN DAUPHIN AND SOUTHERN
LEBANON COUNTIES...

At 510 PM EDT, severe thunderstorms were located along a line
extending from near Churchtown to near York Airport, moving southeast
at 35 mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is possible. Expect wind damage to 
         trees and power lines.

Locations impacted include...
Akron, Cornwall, Millersville, Mount Joy, New Holland, Manheim,
Columbia, Myerstown, Ephrata and York.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

This is a DANGEROUS SITUATION. These storms are producing widespread 
wind damage. SEEK SHELTER NOW inside a sturdy structure and stay 
away from windows.
 
Intense thunderstorm lines can produce brief tornadoes and widespread
significant wind damage. Although a tornado is not immediately
likely, it is best to move to an interior room on the lowest floor of
a building. These storms may cause serious injury and significant
property damage.

&&

LAT...LON 4010 7594 4007 7594 3993 7659 4005 7709
      4039 7628 4036 7623 4036 7620 4031 7614
      4014 7587
TIME...MOT...LOC 2110Z 308DEG 28KT 4015 7592 3994 7691 

HAIL...1.00IN
WIND...60MPH
 
$$

Dangelo

127 
WWUS51 KCTP 152116
SVSCTP

Severe Weather Statement
National Weather Service State College PA
516 PM EDT TUE MAY 15 2018

PAC043-075-152126-
/O.CAN.KCTP.SV.W.0045.000000T0000Z-180515T2200Z/
Dauphin PA-Lebanon PA-
516 PM EDT TUE MAY 15 2018

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN DAUPHIN AND
SOUTHERN LEBANON COUNTIES IS CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

A severe thunderstorm watch remains in effect until 800 PM EDT for
south central Pennsylvania.

LAT...LON 4010 7594 4007 7594 3993 7659 4003 7703
      4025 7604 4014 7587
TIME...MOT...LOC 2116Z 266DEG 47KT 4016 7582 3994 7681 

$$

PAC071-133-152200-
/O.CON.KCTP.SV.W.0045.000000T0000Z-180515T2200Z/
Lancaster PA-York PA-
516 PM EDT TUE MAY 15 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 600 PM EDT
FOR CENTRAL LANCASTER AND CENTRAL YORK COUNTIES...

At 516 PM EDT, severe thunderstorms were located along a line
extending from Elverson to near Shiloh, moving east at 55 mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is possible. Expect wind damage to 
         trees and power lines.

Locations impacted include...
Akron, Millersville, Mount Joy, New Holland, Manheim, Columbia,
Ephrata, York, East Petersburg and Lancaster.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

This is a DANGEROUS SITUATION. These storms are producing widespread 
wind damage. SEEK SHELTER NOW inside a sturdy structure and stay 
away from windows.
 
Intense thunderstorm lines can produce brief tornadoes and widespread
significant wind damage. Although a tornado is not immediately
likely, it is best to move to an interior room on the lowest floor of
a building. These storms may cause serious injury and significant
property damage.

&&

LAT...LON 4010 7594 4007 7594 3993 7659 4003 7703
      4025 7604 4014 7587
TIME...MOT...LOC 2116Z 266DEG 47KT 4016 7582 3994 7681 

HAIL...1.00IN
WIND...60MPH
 
$$

Dangelo

133 
WWUS51 KCTP 152134
SVSCTP

Severe Weather Statement
National Weather Service State College PA
534 PM EDT TUE MAY 15 2018

PAC071-133-152143-
/O.CAN.KCTP.SV.W.0045.000000T0000Z-180515T2200Z/
Lancaster PA-York PA-
534 PM EDT TUE MAY 15 2018

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL LANCASTER AND CENTRAL
YORK COUNTIES IS CANCELLED...
    
The storms which prompted the warning have moved to the south.

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

LAT...LON 4010 7594 4007 7594 3993 7659 4003 7703
      4025 7604 4014 7587
TIME...MOT...LOC 2131Z 266DEG 47KT 4017 7555 3996 7655 

$$

Dangelo

Area Forecast Discussion
National Weather Service State College PA
416 PM EDT Tue May 15 2018

.SYNOPSIS...
A cold front will sag south of the Pennsylvania...Maryland
border this evening. Cloudy and cool weather will follow for
Wednesday. Later this week, a wet and muggy weather pattern
will persist, with several periods of mainly afternoon and
evening showers and thunderstorms.
&&

.NEAR TERM /UNTIL 6 AM WEDNESDAY MORNING/...
Severe Thunderstorm Watch 93 still in effect for far southern PA
and the Lower Susq Valley for the next few hours, before likely
being cancelled as the solid line of strong to locally severe
TSRA continues to push to the SE.

Latest HRRR/NAM has the convection weakening/drifting south of
the Mason/Dixon line late this evening, with the bulk of the
Central and Northern part of the CWA seeing just sct-bkn
mid/high debris cloud from the tops of the convection.

Late tonight, second mesoscale mid/upper level vort max will
ride east along the frontal boundary that will become quasi
stnry near or just south of Mason/Dixon line, bringing the chc
for training showers/tsra cells and heavy rain. Will allow the
Flash Flood watch to continue there, through the first half of
tonight and re-evaluate within the next several hours to see if
the bulk of the convection sags far enough south to cancel it.

Low level winds will veer all the way around through the north
and northeast, before becoming east toward daybreak. This light
upslope flow will help to develop a widespread lowering stratus
deck toward daybreak Wednesday.

&&

.SHORT TERM /6 AM WEDNESDAY MORNING THROUGH 6 PM WEDNESDAY/...
A cloudy and cooler day is on tap for Wednesday with llvl east
to SE flow helping to bring back conditions similar to what we
experienced over the past weekend.

Max temps Wednesday will likely run 5 to 8 deg F below mid-May
climo.

&&

.LONG TERM /WEDNESDAY NIGHT THROUGH TUESDAY/...
A persistent flow of subtropical moisture interacting with a
quasi-stationary frontal system will keep conditions soggy over
the region for the foreseeable future. The front will wag north
and south for the next several days bringing periods of showers
and thunderstorms with very little chance of any 12 hour period
remaining dry in any one location. Proximity of drier air mass
and high pressure to the north over southern Canada means that
drier air will filter southward into far northern PA from time
to time, giving at least some chance of periodic drier periods
this week, but the main story is for daily chances of showers
and thunderstorms until further notice. The Thursday night into
Friday timeframe looks particularly wet as deep layer moisture
surges (PW near 2.0") thanks to amplification of the offshore
upper ridge coupled with a nearly stationary upper trough over
the central plains. This will direct copious subtropical
moisture northward into the eastern GLAKS and set the stage for
locally heavy rains and potential flooding given what will have
been a very wet week by that time.

Temperatures should be above seasonal climate averages this week
with a muggy summertime/humid feel given dewpoints in the 60s.

&&

.AVIATION /20Z TUESDAY THROUGH SUNDAY/...
Widespread VFR conditions will be interrupted by a few brief
periods of MVFR/IFR with a gusty thunderstorm late this
afternoon and early evening INVOF KMDT and KLNS as a cold front
pushes southeast across the region.

VFR Early tonight, then a lowering layer of clouds into the IFR
or low-end MVFR range will occur very late tonight/early
Wednesday as the LLVL flow veers all the way around from the NW
and north...to the NE or East by daybreak Wednesday.

Outlook...

Wed-Thu...Periods of Light Rain/Drizzle possible, mainly
across southern Pa. An afternoon TSRA possible across the Laurel
Highlands of SW PA Invof KJST.

Fri...Rain/low cigs likely.

Sat...Rain/low cigs possible.

&&

.HYDROLOGY...
Some repeat/training convection (on the tail end of fcst
damaging Tstm wind complex) is possible across the southern tier
of central PA mainly this evening. Collaborated with adjacent
offices on FF watch across srn PA although would have preferred
to issue a more short-fused watch. 1-3hr FFGs as low as 1-1.5
inches suggest some runoff problems are possible.

Deep moisture feed advecting northward along stalled frontal
boundary suggests potential for heavy rain/FF risk through late
week. Current WPC EROs favor areas just south of PA for marginal
to slight risk of flash flooding.

&&

.CTP WATCHES/WARNINGS/ADVISORIES...
Flash Flood Watch until midnight EDT tonight for PAZ033>036-
056-057-059-063>066.

&&

SYNOPSIS...Lambert
NEAR TERM...Lambert
SHORT TERM...Lambert
LONG TERM...DeVoir
AVIATION...Lambert
HYDROLOGY...Lambert

Hazardous Weather Outlook
National Weather Service State College PA
353 PM EDT Tue May 15 2018

PAZ035-036-056-057-059-063>066-162000-
Fulton-Franklin-Perry-Dauphin-Lebanon-Cumberland-Adams-York-
Lancaster-
353 PM EDT Tue May 15 2018

...FLASH FLOOD WATCH IN EFFECT UNTIL MIDNIGHT EDT TONIGHT...
...SEVERE THUNDERSTORM WATCH 93 IN EFFECT UNTIL 8 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.

   Flash Flood Watch.
   Severe Thunderstorm Watch.

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

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to report significant hazardous weather.

PAZ004>006-010>012-017>019-024>028-037-041-042-045-046-049>053-
162000-
Warren-McKean-Potter-Elk-Cameron-Northern Clinton-Clearfield-
Northern Centre-Southern Centre-Cambria-Blair-Huntingdon-Mifflin-
Juniata-Tioga-Northern Lycoming-Sullivan-Southern Clinton-
Southern Lycoming-Union-Snyder-Montour-Northumberland-Columbia-
353 PM EDT Tue May 15 2018

This Hazardous Weather Outlook is for central Pennsylvania.

.DAY ONE...This Afternoon and Tonight.

The probability for widespread hazardous weather is low.

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

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Spotters activation is not anticipated.

PAZ033-034-162000-
Somerset-Bedford-
353 PM EDT Tue May 15 2018

...FLASH FLOOD WATCH IN EFFECT UNTIL MIDNIGHT EDT TONIGHT...

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.

   Flash Flood Watch.

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

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to report significant hazardous weather.

PAZ058-162000-
Schuylkill-
353 PM EDT Tue May 15 2018

...SEVERE THUNDERSTORM WATCH 93 IN EFFECT UNTIL 8 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.

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

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to report significant hazardous weather.

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
402 PM EDT TUE MAY 15 2018

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

0350 PM     TSTM WND DMG     1 NNW FALLING SPRING    40.36N  77.21W
05/15/2018                   PERRY              PA   911 CALL CENTER

            TREES AND WIRES DOWN ON PIKE ROAD AT MILL ROAD

&&

EVENT NUMBER CTP1801819

TYBURSKI

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
407 PM EDT TUE MAY 15 2018

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

0352 PM     TSTM WND DMG     CRUMS CORNERS           40.36N  77.17W
05/15/2018                   PERRY              PA   911 CALL CENTER

            TREES AND WIRES DOWN ON RAMBO HILL ROAD AT SPRING ROAD

&&

EVENT NUMBER CTP1801820

TYBURSKI

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
411 PM EDT TUE MAY 15 2018

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

0241 PM     TSTM WND DMG     MIFFLINBURG             40.92N  77.05W
05/15/2018                   UNION              PA   911 CALL CENTER

            ROOF BLOWN OFF

&&

EVENT NUMBER CTP1801821

JRB

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
415 PM EDT TUE MAY 15 2018

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

0259 PM     TSTM WND DMG     DANVILLE                40.96N  76.61W
05/15/2018                   MONTOUR            PA   SOCIAL MEDIA

            TRACTOR TRAILER OVERTURNED ON THE BRIDGE BETWEEN
            DANVILLE AND RIVERSIDE

&&

EVENT NUMBER CTP1801822

JRB

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
419 PM EDT TUE MAY 15 2018

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

0330 PM     TSTM WND DMG     SHAMOKIN                40.79N  76.55W
05/15/2018                   NORTHUMBERLAND     PA   SOCIAL MEDIA

            NUMEROUS TREES DOWN.

&&

EVENT NUMBER CTP1801823

COLBERT

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
420 PM EDT TUE MAY 15 2018

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

0415 PM     TSTM WND GST     1 SSE BORDNERSVILLE     40.42N  76.52W
05/15/2018  M50 MPH          LEBANON            PA   PENNDOT RWIS

&&

EVENT NUMBER CTP1801824

RXR