Latest PA Weather Story:
201
AWUS81 KCTP 282223
RWSCTP
PAZ004>006-010>012-017>019-024>028-033>037-041-042-045-046-
049>053-056>059-063>066-291230-
Regional Weather Summary
National Weather Service State College PA
523 PM EST Fri Feb 28 2020
Lake-effect and upslope snow showers will continue to impact
northwestern Pennsylvania tonight through late Saturday
afternoon, with several inches of additional accumulation
expected in the northwestern snowbelt. Scattered snow showers and
flurries will drift farther to the southeast into the central
mountains and Laurel Highlands on Saturday as well, with a few
flurries possible southeast of the mountains.
Lows tonight will range from the mid to upper teens in northern
and western Pennsylvania counties to the low to mid 20s south and
east of the mountains. A breezy west wind will continue to make
temperatures feel even chillier. Highs Saturday will range from
the mid to upper 20s in the north and west to the low to mid 30s
in the southeast. Saturday night temperatures will be similar to
tonight`s forecasted low temperatures.
Sunday will be mainly dry across the state. A moderating trend
will also begin Sunday and continue into next week, with daily
high temperatures in the low to mid 50s.
$$
Latest Forecaster's Discussion:
000
FXUS61 KCTP 282004
AFDCTP
Area Forecast Discussion
National Weather Service State College PA
304 PM EST Fri Feb 28 2020
.SYNOPSIS...
An upper level trough over the northeast CONUS will lift out of
the region late this weekend, as high pressure builds off of the
east coast. A slow moving cold front will approach the region
the first half of next week, eventually pushing through the
state by the second half of next week.
&&
.NEAR TERM /UNTIL 6 AM SATURDAY MORNING/...
Larger scale subsidence and falling inversion heights creating
a decent clear slot extending across the central counties. To
the south, a weak clipper tracking south of the state is
spreading some clouds across the southern tier counties and
light snow showers into the Laurel Highlands.
Upper trough axis pushes through the region tonight into
Saturday, accompanied by a resurgence of lake effect snow over
northwest Pa, as boundary layer flow veers to the WNW and
inversion heights rise. Longer duration Advisory in effect for
Warren and McKean Counties lasting into Saturday.
&&
.SHORT TERM /6 AM SATURDAY MORNING THROUGH 6 PM SATURDAY/...
Upper trough axis pushes through the region tonight into
Saturday, accompanied by a resurgence of lake effect snow over
northwest Pa, as boundary layer flow veers to the WNW and
inversion heights rise. Model soundings look nearly saturated
over the snowbelt of northwest Pa Friday night into 18Z
Saturday. Snow ratios during this time look to be 20/1 or better
based on model depiction of greatest omega occurring within the
DGZ. Given the latest model qpf, it looks like the potential of
6+ inches over northwest Warren County. Expect diminishing lake
effect by late Saturday, as upper trough passes east of the
state and surface high approaches from the Ohio Valley. Went
with Winter WEather Advisories for Warren and McKean with 4 to 8
inches and 2 to 5 inches, respectively. Heaviest amounts seen
over the western/northwest portions of those counties.
Temperatures will remain several degrees below normal through
Saturday, as the base of trough swings over the state.
&&
.LONG TERM /SATURDAY NIGHT THROUGH FRIDAY/...
All medium range guidance supports fair and milder conditions
Sunday with mostly sunny skies, as ridging builds into the
state. There is considerable model consensus in a period of warm
and showery weather the first half of next week, as deep
southerly flow ahead of a slow moving cold front transports Gulf
of Mexico moisture northward along the spine of the
Appalachians. A wave of low pressure will move north along this
boundary, passing west of Pa Wednesday, with the trailing cold
front coming through Pa Wednesday night into Thursday.
The details for Thursday remain unclear as there is quite a bit
of spread between the long-range guidance as to the speed of the
cold front and extent of the cold air behind it. Have gone with
a median solution for temperatures on Thursday, though
temperatures will likely drop pretty quickly after the cold
front moves through. The 12Z GFS moves the cold front through
much more quickly than the 00Z Euro with a changeover to snow
behind the front early Thursday. This solution would also lend
itself to very strong winds behind the front, not unlike the
weather pattern this week. A slightly slower cold frontal
passage, as the 00Z Euro suggests, would lend itself to less
cold air and therefore a less-likely transition to snow. Winds
will still pick up behind the cold front, but peak winds would
not be quite as strong.
After a brief period of cold weather late week, long range
guidance continues to indicate a tilt toward above average
temperatures for the first half of March with above average
precipitation. This trend supports the fact that meteorological
spring begins Sunday March 1st. Mild and wet weather with no
strong signal of a significant cold snap supports the idea that
spring flowers and a green up will occur over the next couple
weeks.
&&
.AVIATION /20Z FRIDAY THROUGH WEDNESDAY/...
Snow shower activity ramps up again this evening into early
Saturday morning, mainly over the NW. Expect VFR conditions
today (MVFR NW) trending to MVFR/IFR tonight into early
Saturday across the western 1/2 of the airspace. Sfc wind gusts
from 250-280 will be lower than yesterday in the 20-30kt range.
.Outlook...
Sat...MVFR cigs wrn 1/3 with snow showers fading. Not as windy.
Sun...VFR/no sig wx.
Mon...VFR/MVFR with PM rain showers.
Tue-Wed...Restrictions likely in rain showers.
&&
.CTP WATCHES/WARNINGS/ADVISORIES...
Winter Weather Advisory until 10 AM EST Saturday for PAZ004-
005.
&&
$$
SYNOPSIS...DeVoir/RXR
NEAR TERM...DeVoir/Fitzgerald/Lambert/RXR
SHORT TERM...DeVoir/RXR
LONG TERM...Fitzgerald/Banghoff
AVIATION...RXR/Steinbugl
Latest Public Information Statement:
000
NOUS41 KCTP 281332
PNSCTP
PAZ004>005-010>012-017>019-024>028-033>034-037-041>042-045>046-
049>053-056>059-063-065>066-290132-
Public Information Statement
Spotter Reports
National Weather Service State College PA
832 AM EST Fri Feb 28 2020
Observations are collected from a variety of sources with varying
equipment and exposure. Not all data listed are considered official.
This summary is also available on our home page at
weather.gov/statecollege
**********************24 HOUR SNOWFALL**********************
LOCATION 24 HOUR TIME/DATE COMMENTS
SNOWFALL OF
/INCHES/ MEASUREMENT
PENNSYLVANIA
...Bedford County...
Wolfsburg 0.2 700 AM 2/28 Co-Op Observer
5 NNW Rainsburg 0.1 530 AM 2/28 CoCoRaHS
...Blair County...
Altoona 2 1.0 1200 AM 2/28 Co-Op Observer
...Cameron County...
Stevenson Dam 4.0 700 AM 2/28 Co-Op Observer
...Centre County...
Philipsburg 0.7 700 AM 2/28 Co-Op Observer
2 ESE Port Matilda 0.4 700 AM 2/28 CoCoRaHS
1 ENE Boalsburg 0.2 700 AM 2/28 CoCoRaHS
State College 0.2 700 AM 2/28 Co-Op Observer
...Clearfield County...
Grampian 1.0 700 AM 2/28 Co-Op Observer
...Elk County...
2 SE St. Marys 4.8 600 AM 2/28 CoCoRaHS
...Huntingdon County...
S Wood 1.5 1000 PM 2/27 CoCoRaHS
...McKean County...
Kane 3.0 700 AM 2/28 Co-Op Observer
...Potter County...
Coudersport 7SE 1.0 700 AM 2/28 Co-Op Observer
...Somerset County...
ENE Hidden Valley 9.5 500 AM 2/28 CoCoRaHS
...Tioga County...
1 NE Leonard Harriso 1.9 700 AM 2/28 Co-Op Observer
2 WSW Covington 0.5 700 AM 2/28 Co-Op Observer
...Warren County...
Chandlers Valley 3.0 700 AM 2/28 Co-Op Observer
Warren 1.0 700 AM 2/28 Co-Op Observer
&&
*****METADATA*****
:2/28/2020, 700 AM, PA, Bedford, Wolfsburg, , , 40.03330, -78.51670, SNOW_24, 0.2, Inch, Co-Op Observer,
:2/28/2020, 530 AM, PA, Bedford, Rainsburg, 5, NNW, 39.95750, -78.56380, SNOW_24, 0.1, Inch, CoCoRaHS,
:2/28/2020, 1200 AM, PA, Blair, Altoona 2, , , 40.52670, -78.36940, SNOW_24, 1.0, Inch, Co-Op Observer,
:2/28/2020, 700 AM, PA, Cameron, Stevenson Dam, , , 41.40000, -78.01670, SNOW_24, 4.0, Inch, Co-Op Observer,
:2/28/2020, 700 AM, PA, Centre, Philipsburg, , , 40.87220, -78.21530, SNOW_24, 0.7, Inch, Co-Op Observer,
:2/28/2020, 700 AM, PA, Centre, Port Matilda, 2, ESE, 40.79120, -78.01180, SNOW_24, 0.4, Inch, CoCoRaHS,
:2/28/2020, 700 AM, PA, Centre, Boalsburg, 1, ENE, 40.78140, -77.77070, SNOW_24, 0.2, Inch, CoCoRaHS,
:2/28/2020, 700 AM, PA, Centre, State College, , , 40.79350, -77.86720, SNOW_24, 0.2, Inch, Co-Op Observer,
:2/28/2020, 700 AM, PA, Clearfield, Grampian, , , 40.96660, -78.58710, SNOW_24, 1.0, Inch, Co-Op Observer,
:2/28/2020, 600 AM, PA, Elk, St. Marys, 2, SE, 41.41070, -78.53480, SNOW_24, 4.8, Inch, CoCoRaHS,
:2/27/2020, 1000 PM, PA, Huntingdon, Wood, , S, 40.16750, -78.13630, SNOW_24, 1.5, Inch, CoCoRaHS,
:2/28/2020, 700 AM, PA, McKean, Kane, , , 41.68330, -78.80000, SNOW_24, 3.0, Inch, Co-Op Observer,
:2/28/2020, 700 AM, PA, Potter, Coudersport 7SE, , , 41.73920, -77.97100, SNOW_24, 1.0, Inch, Co-Op Observer,
:2/28/2020, 500 AM, PA, Somerset, Hidden Valley, , ENE, 40.05840, -79.26160, SNOW_24, 9.5, Inch, CoCoRaHS,
:2/28/2020, 700 AM, PA, Tioga, Leonard Harrison State Park, 1, NE, 41.70030, -77.38940, SNOW_24, 1.9, Inch, Co-Op Observer,
:2/28/2020, 700 AM, PA, Tioga, Covington, 2, WSW, 41.73330, -77.11670, SNOW_24, 0.5, Inch, Co-Op Observer,
:2/28/2020, 700 AM, PA, Warren, Chandlers Valley, , , 41.93010, -79.29700, SNOW_24, 3.0, Inch, Co-Op Observer,
:2/28/2020, 700 AM, PA, Warren, Warren, , , 41.84380, -79.15000, SNOW_24, 1.0, Inch, Co-Op Observer,
$$
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