National Weather Service United States Department of Commerce

Soggy in the Pacific Northwest; Cool and Snowy in the Northeast

Periods of heavy rain on top of already saturated soils will lead to additional flooding and continued threats of landslides across western Washington. A series of weather systems originating in Canada will produce areas of snow and lake effect snow across the Great Lakes and Northeast. Santa Ana winds will warm southern California and keep fire weather threats elevated. Read More >

A record-setting snowfall occurred across Central PA in mid-December of 2020.

The highest snowfall totals occurred across the north-central mountains, especially in and north of Williamsport, PA.

Williamsport set it's record snowfall for any 2-day stretch with 24.7" of snowfall. They also set single day records for both the 16th and 17th of December (13.7" and 11.0", respectively).

See a map and some text of the snowfall reports and records below.

 

Snowfall of Dec 16-17 2020

RERIPT

RECORD EVENT REPORT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
0551 PM EST THU DEC 17 2020

...RECORD DAILY MAXIMUM SNOWFALL SET AT WILLIAMSPORT PA...

A RECORD SNOWFALL OF 11.0 WAS SET AT WILLIAMSPORT PA TODAY.
THIS BREAKS THE OLD RECORD OF 10.0 SET IN 1973.



...ALL TIME TWO-DAY SNOWFALL RECORD SET AT WILLIAMSPORT PA...
...RECORD DAILY MAXIMUM SNOWFALL SET YESTERDAY AT WILLIAMSPORT PA...


THIS HISTORIC STORM SET AN ALL TIME TWO-DAY SNOWFALL RECORD OF 24.7
INCHES IN WILLIAMSPORT PA ON DECEMBER 16-17 2020. THIS BREAKS THE
PREVIOUS TWO-DAY RECORD OF 24.1 INCHES SET ON JANUARY 12-13 1964
(THE ONLY OTHER TWO FOOT STORM ON RECORD). THE PREVIOUS TWO-DAY
RECORD SNOW FOR THE MONTH OF DECEMBER WAS 17.2 INCHES ON DECEMBER 25-
26 1969.

DAILY SNOWFALL RECORDS WERE BROKEN FOR BOTH WEDNESDAY AND THURSDAY.

A RECORD SNOWFALL OF 13.7 INCHES WAS MEASURED AT WILLIAMSPORT PA
WENDESDAY (12/16)...BREAKING THE OLD RECORD OF 6.5 SET IN 1970.

IN ADDITION...

WEDNESDAY`S TOTAL OF 13.7 INCHES ALSO TIES FOR THE SECOND HIGHEST
ONE-DAY DECEMBER SNOWFALL TOTAL WITH DECEMBER 19 1945...JUST BEHIND
THE RECORD 14.7 INCHES THAT FELL ON DECEMBER 16 1969.

THE LAST TIME THERE WAS 12 OR MORE INCHES OF SNOW OVER A TWO-DAY
PERIOD WAS 18.4 INCHES ON MARCH 14-15, 2017.

THE ONLY OTHER TWO FOOT SNOWSTORM ON RECORD AT WILLIAMSPORT OCCURRED
ON JANUARY 12-13 1964.

$$
175
NOUS41 KCTP 172214
PNSCTP
PAZ004>006-010>012-017>019-024>028-033>037-041-042-045-046-049>053-056>059-
063>066-181014-

Public Information Statement
National Weather Service State College PA
514 PM EST Thu Dec 17 2020

...Snowfall Observations from the past 12 hours. Some of these reports may not reflect the storm total snowfall amounts...

...SNOWFALL REPORTS...

Location                     Amount    Time/Date       Lat/Lon

...Pennsylvania...

...Adams County...
York Springs 0.7 SE          11.0 in   0700 AM 12/17   40.00N/77.11W
Cashtown 1 S                 8.6 in    0700 AM 12/17   39.87N/77.36W
Biglerville                  8.2 in    0915 AM 12/17   39.93N/77.25W
Abbottstown 2.4 N            8.0 in    0700 AM 12/17   39.92N/76.99W
Biglerville 3.0 WSW          8.0 in    0700 AM 12/17   39.92N/77.30W
1 NNW Littlestown            7.3 in    0800 AM 12/17   39.76N/77.09W
Gettysburg 2.5 WNW           7.0 in    0700 AM 12/17   39.85N/77.28W
Hanover 3.5 WSW              5.6 in    0730 AM 12/17   39.79N/77.04W
2 SW Mcsherrystown           5.6 in    0725 AM 12/17   39.79N/77.04W

...Bedford County...
2 NNE Osterburg              13.5 in   1055 AM 12/17   40.21N/78.52W
Everett 3.9 W                11.0 in   0700 AM 12/17   40.02N/78.44W
Wolfsburg                    8.0 in    0700 AM 12/17   40.03N/78.52W
Everett 3.4 SW               7.5 in    0654 AM 12/17   39.98N/78.41W

...Blair County...
1 SE Lakemont                13.0 in   0530 AM 12/17   40.46N/78.37W
1 SE Duncansville            12.1 in   1029 AM 12/17   40.42N/78.42W
2 NE Altoona                 12.0 in   0829 AM 12/17   40.53N/78.37W
1 SSW Tyrone                 10.7 in   1104 AM 12/17   40.66N/78.25W
2 NNE Canoe Creek State Park 10.5 in   0900 AM 12/17   40.52N/78.31W
1 SE Altoona                 9.7 in    0550 AM 12/17   40.50N/78.39W
Williamsburg                 8.5 in    0715 AM 12/17   40.47N/78.20W

...Cambria County...
Prince Gallitzin Sta Pk      13.0 in   0935 AM 12/17   40.65N/78.55W
Ebensburg                    10.5 in   1029 AM 12/17   40.49N/78.73W
Ebensburg                    9.0 in    0800 AM 12/17   40.47N/78.73W
Johnstown                    8.5 in    0758 AM 12/17   40.33N/78.92W
1 N Elim                     8.5 in    0700 AM 12/17   40.31N/78.94W
Belmont 0.1 NE               7.5 in    0800 AM 12/17   40.28N/78.89W

...Cameron County...
Driftwood                    31.0 in   0236 PM 12/17   41.34N/78.14W
3 ESE Driftwood              28.5 in   1000 AM 12/17   41.32N/78.08W
3 SE Driftwood               27.5 in   0237 PM 12/17   41.32N/78.10W
3 SE Stevenson Dam           27.0 in   1015 AM 12/17   41.40N/78.02W
Emporium                     17.0 in   0237 PM 12/17   41.51N/78.24W

...Centre County...
Bellefonte 4.3 E             21.5 in   0800 AM 12/17   40.92N/77.69W
4 WNW Milesburg              19.5 in   0730 AM 12/17   40.96N/77.86W
State College 2.4 WNW        19.1 in   0700 AM 12/17   40.81N/77.90W
1 W Black Moshannon State Pa 17.5 in   1059 AM 12/17   40.91N/78.07W
State College 2.6 NW         16.6 in   0730 AM 12/17   40.82N/77.90W
3 NNE Zion                   16.4 in   0744 AM 12/17   40.96N/77.64W
3 WNW Milesburg              16.2 in   0800 AM 12/17   40.96N/77.84W
2 ESE Port Matilda           15.5 in   0228 PM 12/17   40.79N/78.02W
Port Matilda                 15.5 in   0800 AM 12/17   40.80N/78.05W
Port Matilda 2.0 ESE         15.5 in   0800 AM 12/17   40.79N/78.02W
Philipsburg                  15.2 in   0700 AM 12/17   40.87N/78.22W
2 ENE Port Matilda           15.0 in   0800 AM 12/17   40.81N/78.01W
1 ENE Bellefonte             15.0 in   0716 AM 12/17   40.92N/77.75W
Bellefonte                   15.0 in   0700 AM 12/17   40.91N/77.78W
Port Matilda 2.2 ESE         15.0 in   0700 AM 12/17   40.79N/78.01W
4 WSW Unionville             15.0 in   0635 AM 12/17   40.88N/77.94W
State College 2.4 ENE        14.9 in   0900 AM 12/17   40.81N/77.82W
Pleasant Gap 0.7 NW          14.8 in   0700 AM 12/17   40.87N/77.75W
2 ENE Park Forest            14.0 in   0800 AM 12/17   40.81N/77.89W
1 ENE Boalsburg              13.9 in   1006 AM 12/17   40.78N/77.77W
Pleasant Gap                 13.9 in   0730 AM 12/17   40.87N/77.73W
2 N Pine Grove Mills         13.0 in   0234 PM 12/17   40.76N/77.88W
1 ESE State College          13.0 in   0845 AM 12/17   40.79N/77.85W
Boalsburg 0.7 ENE            13.0 in   0700 AM 12/17   40.78N/77.78W
2 ENE Boalsburg              12.7 in   0924 AM 12/17   40.78N/77.76W
Centre Hall                  12.0 in   0800 AM 12/17   40.85N/77.69W

...Clearfield County...
Clearfield                   22.0 in   1052 AM 12/17   41.02N/78.44W
Burnside                     18.0 in   1020 AM 12/17   40.81N/78.79W
2 SW Dubois                  16.5 in   0900 AM 12/17   41.10N/78.78W
1 N Dubois                   15.5 in   1008 AM 12/17   41.13N/78.75W
2 NE Troutville              15.0 in   1050 AM 12/17   41.05N/78.76W
1 SW Dubois                  14.0 in   1116 AM 12/17   41.11N/78.77W
Dubois 2 S                   13.5 in   0710 AM 12/17   41.09N/78.76W

...Clinton County...
3 NNE Hyner                  27.0 in   1119 AM 12/17   41.34N/77.66W
1 N Westport                 24.7 in   1049 AM 12/17   41.31N/77.84W
2 W Lock Haven               20.5 in   1051 AM 12/17   41.14N/77.50W
Lock Haven                   19.0 in   0700 AM 12/17   41.12N/77.45W
2 N Mackeyville              17.0 in   0630 AM 12/17   41.08N/77.42W
2 W Mackeyville              15.5 in   0515 AM 12/17   41.05N/77.46W

...Columbia County...
3 WNW Bloomsburg             15.0 in   0700 AM 12/17   41.02N/76.51W
Benton                       14.9 in   1100 AM 12/17   41.19N/76.39W
2 SW Fairmount Spgs          14.9 in   0600 AM 12/17   41.23N/76.34W
2 SE Orangeville             14.3 in   0700 AM 12/17   41.05N/76.38W
Espy 0.8 S                   12.1 in   0700 AM 12/17   40.99N/76.42W
1 NNW Knoebels Grove         11.0 in   1059 AM 12/17   40.89N/76.52W

...Cumberland County...
Carlisle 7.2 SSW             11.2 in   0800 AM 12/17   40.11N/77.28W
2 WNW Carlisle Springs       11.0 in   0642 AM 12/17   40.25N/77.22W
Shiremanstown 0.4 SE         10.5 in   0800 AM 12/17   40.22N/76.95W
Mechanicsburg 1.0 NNW        10.1 in   0820 AM 12/17   40.22N/77.01W
Carlisle                     10.0 in   0700 AM 12/17   40.23N/77.19W
2 S Carlisle                 9.5 in    0953 AM 12/17   40.18N/77.21W

...Dauphin County...
4 NE Liverpool               13.0 in   1023 AM 12/17   40.60N/76.94W
1 W Linglestown              11.0 in   0800 AM 12/17   40.34N/76.82W
Millersburg                  10.6 in   0800 AM 12/17   40.54N/76.96W
1 W Elizabethville           10.5 in   0900 AM 12/17   40.55N/76.84W
Harrisburg 5.9 NE            9.6 in    0715 AM 12/17   40.33N/76.80W
Clifton                      9.1 in    0224 PM 12/17   40.24N/76.72W
1 WSW Rutherford Heights     9.0 in    0930 AM 12/17   40.27N/76.78W
Dauphin 2.6 NNE              8.8 in    0800 AM 12/17   40.41N/76.91W
Middletown 2.9 NW            8.2 in    0800 AM 12/17   40.23N/76.76W
0.7 N Dehart Dam             8.2 in    0700 AM 12/17   40.46N/76.75W
Skyline View                 8.0 in    0739 AM 12/17   40.33N/76.73W
Harrisburg 1NE               8.0 in    0700 AM 12/17   40.28N/76.87W
Hummelstown                  8.0 in    0642 AM 12/17   40.27N/76.71W
Paxtonia 1.7 E               7.5 in    0800 AM 12/17   40.31N/76.76W

...Elk County...
St. Marys 1.7 SE             19.6 in   0600 AM 12/17   41.41N/78.53W
Saint Marys                  17.5 in   1056 AM 12/17   41.43N/78.56W
1 E Saint Marys              16.0 in   1019 AM 12/17   41.43N/78.55W
Ridgway                      13.2 in   0700 AM 12/17   41.42N/78.75W

...Franklin County...
3.0 E Mont Alto              9.1 in    0700 AM 12/17   39.85N/77.50W
Greencastle                  8.0 in    1103 AM 12/17   39.79N/77.73W
Mercersburg                  7.0 in    0915 AM 12/17   39.83N/77.90W
Waynesboro 2.6 WSW           6.8 in    0700 AM 12/17   39.74N/77.63W
Fayetteville 3.2 S           6.0 in    0700 AM 12/17   39.87N/77.56W

...Huntingdon County...
3 WSW Rock Springs           11.5 in   0700 AM 12/17   40.70N/78.00W
Huntingdon 1.3 N             11.4 in   0700 AM 12/17   40.52N/78.02W
Petersburg                   10.5 in   0830 AM 12/17   40.57N/78.05W

...Juniata County...
1 W Thompsontown             13.0 in   1117 AM 12/17   40.56N/77.25W
Mifflin                      11.1 in   0742 AM 12/17   40.57N/77.40W
East Waterford 0.2 SW        10.1 in   0700 AM 12/17   40.37N/77.61W

...Lancaster County...
Millersville                 10.0 in   0221 PM 12/17   40.00N/76.35W
4 W Leola                    9.4 in    0705 AM 12/17   40.09N/76.26W
Lititz 0.3 WNW               9.0 in    0800 AM 12/17   40.16N/76.31W
Denver                       8.8 in    1050 AM 12/17   40.23N/76.14W
Salunga-Landisville 1.1 SSE  8.5 in    0900 AM 12/17   40.08N/76.41W
2 E Lancaster                8.0 in    0730 AM 12/17   40.04N/76.27W
Adamstown 2.5 SSE            7.8 in    0700 AM 12/17   40.21N/76.05W
2 ENE Millersville           7.5 in    0746 AM 12/17   40.02N/76.33W
Lancaster                    7.3 in    0630 AM 12/17   40.04N/76.30W
3 N Lancaster                7.1 in    0855 AM 12/17   40.08N/76.30W
3 NW Churchtown              6.5 in    1147 AM 12/17   40.18N/75.99W
Safe Harbor                  6.0 in    0800 AM 12/17   39.92N/76.39W

...Lebanon County...
1 S Lebanon                  9.7 in    0730 AM 12/17   40.33N/76.43W
Mount Gretna                 9.0 in    0900 AM 12/17   40.25N/76.47W
1 ENE Cornwall               8.0 in    0900 AM 12/17   40.28N/76.39W
Palmyra 2.1 S                8.0 in    0700 AM 12/17   40.28N/76.60W
Lebanon 1.3 SW               8.0 in    0700 AM 12/17   40.33N/76.44W
Lebanon 3.1 SSE              5.0 in    0705 AM 12/17   40.30N/76.39W

...Lycoming County...
3 S English Center           27.5 in   0719 AM 12/17   41.40N/77.25W
3 WNW Cogan Station          22.0 in   0900 AM 12/17   41.32N/77.08W
3 ENE Jersey Shore           21.0 in   0748 AM 12/17   41.22N/77.21W
Picture Rocks                19.8 in   0600 AM 12/17   41.28N/76.71W
Jersey Shore 0.9 S           18.2 in   0700 AM 12/17   41.19N/77.27W

...McKean County...
Port Allegany                10.0 in   0830 AM 12/17   41.82N/78.28W
1 SW Smethport               8.5 in    0825 AM 12/17   41.80N/78.46W
Smethport                    8.5 in    0821 AM 12/17   41.80N/78.45W
Kane                         8.0 in    0700 AM 12/17   41.68N/78.80W
Bradford 5SW                 7.0 in    0800 AM 12/17   41.90N/78.71W

...Mifflin County...
2 WSW Milroy                 11.1 in   0229 PM 12/17   40.70N/77.62W
2 SSW Lewistown              9.0 in    0800 AM 12/17   40.57N/77.58W
2 SSW Alfarata               9.0 in    0755 AM 12/17   40.63N/77.50W
Lewistown                    9.0 in    0700 AM 12/17   40.58N/77.57W

...Montour County...
Danville                     12.0 in   0800 AM 12/17   40.96N/76.62W

...Northumberland County...
Muncy 4.7 SSE                16.1 in   0700 AM 12/17   41.14N/76.77W
1 NE Montandon               13.0 in   1057 AM 12/17   40.97N/76.85W
4 ESE Meiserville            13.0 in   0930 AM 12/17   40.65N/76.89W
0.6 SW Sunbury               13.0 in   0825 AM 12/17   40.85N/76.79W

...Perry County...
3 NE Liverpool               20.0 in   1001 AM 12/17   40.61N/76.95W

...Potter County...
0.6 E Galeton                20.0 in   0800 AM 12/17   41.73N/77.63W
Galeton                      20.0 in   0700 AM 12/17   41.73N/77.64W
1 ESE Coudersport            19.0 in   0900 AM 12/17   41.77N/77.99W
Coudersport 7SE              18.2 in   0700 AM 12/17   41.74N/77.97W
5 NNE Denton Hill State Park 15.0 in   0713 AM 12/17   41.83N/77.80W
1.4 W Coudersport            13.4 in   0700 AM 12/17   41.77N/78.04W
Roulette 1.8 NNE             11.0 in   0700 AM 12/17   41.81N/78.14W

...Schuylkill County...
1 SE Orwigsburg              11.5 in   1138 AM 12/17   40.65N/76.10W
Pottsville                   10.0 in   1045 AM 12/17   40.68N/76.20W
Valley View 0.5 W            9.5 in    0600 AM 12/17   40.64N/76.55W
1 E Tower City               8.0 in    0650 AM 12/17   40.59N/76.54W
1.4 N Mahanoy City           1.1 in    0700 AM 12/17   40.83N/76.13W

...Snyder County...
Selinsgrove 2.6 WNW          16.1 in   0700 AM 12/17   40.82N/76.91W
Selinsgrove                  12.5 in   0700 AM 12/17   40.78N/76.86W

...Somerset County...
Laurel Summit                13.4 in   0700 AM 12/17   40.17N/79.14W
Windber 7SE                  13.3 in   0700 AM 12/17   40.17N/78.70W
Confluence 1 SW              9.5 in    0800 AM 12/17   39.80N/79.37W
Glencoe 1 E                  9.1 in    0700 AM 12/17   39.82N/78.85W
3 SW Jennerstown             8.0 in    0233 PM 12/17   40.14N/79.09W
Somerset                     8.0 in    0233 PM 12/17   40.01N/79.08W
Hidden Valley                8.0 in    0800 AM 12/17   40.04N/79.26W
Berlin 3.1 NW                8.0 in    0700 AM 12/17   39.95N/78.99W
Somerset                     7.8 in    0800 AM 12/17   40.00N/79.08W

...Sullivan County...
Dushore                      33.9 in   1100 AM 12/17   41.52N/76.40W
1 SE Shunk                   23.7 in   1101 AM 12/17   41.55N/76.74W
Laporte                      20.5 in   0705 AM 12/17   41.42N/76.49W

...Tioga County...
2 SSW Morris                 32.0 in   1002 AM 12/17   41.63N/77.28W
Wellsboro                    31.2 in   1204 PM 12/17   41.75N/77.30W
Tioga                        28.8 in   0658 AM 12/17   41.90N/77.14W
Covington 2 WSW              28.0 in   0700 AM 12/17   41.73N/77.12W
Mansfield                    23.5 in   0550 AM 12/17   41.81N/77.08W
1 ENE Millerton              22.7 in   0800 AM 12/17   41.99N/76.93W
Westfield                    16.6 in   0238 PM 12/17   41.92N/77.54W
Cowanesque Dam               16.5 in   0700 AM 12/17   41.99N/77.16W

...Union County...
1 NW Milton                  16.0 in   0221 PM 12/17   41.02N/76.87W
Linntown                     15.0 in   1000 AM 12/17   40.96N/76.90W
1 WSW Linntown               15.0 in   0945 AM 12/17   40.95N/76.92W
Lewisburg                    14.0 in   0100 PM 12/17   40.95N/76.88W

...Warren County...
Chandlers Valley             6.0 in    0700 AM 12/17   41.93N/79.30W
Warren                       5.3 in    0700 AM 12/17   41.84N/79.15W

...York County...
Mount Wolf 1.0 SE            11.0 in   0700 AM 12/17   40.05N/76.69W
Manchester 0.7 NNW           10.0 in   0700 AM 12/17   40.07N/76.72W
Yorkana 1.4 SE               9.3 in    0800 AM 12/17   39.96N/76.57W
1 NNW Stonybrook             9.1 in    1030 AM 12/17   39.99N/76.65W
Spring Grove                 9.0 in    0231 PM 12/17   39.88N/76.86W
Felton                       9.0 in    0730 AM 12/17   39.85N/76.57W
Valley Green 0.8 ENE         9.0 in    0700 AM 12/17   40.16N/76.78W
1 WSW Valley Green           9.0 in    0535 AM 12/17   40.15N/76.82W
2 SSE New Cumberland         9.0 in    0530 AM 12/17   40.20N/76.86W
2 SSW Goldsboro              8.5 in    0921 AM 12/17   40.13N/76.76W
York 2.5 NNW                 8.5 in    0700 AM 12/17   40.00N/76.75W
2 SE Weigelstown             8.0 in    0957 AM 12/17   39.97N/76.79W
Manchester 3.6 W             8.0 in    0700 AM 12/17   40.06N/76.79W
1 WNW Brogue                 7.0 in    1056 AM 12/17   39.87N/76.47W
1 SSE York                   7.0 in    1000 AM 12/17   39.95N/76.73W
Stewartstown 0.5 S           7.0 in    0700 AM 12/17   39.75N/76.59W
East Berlin 3.4 ESE          7.0 in    0600 AM 12/17   39.91N/76.92W
1 SE New Salem               6.0 in    0801 AM 12/17   39.89N/76.78W
&&

Observations are collected from a variety of sources with varying
equipment and exposures. We thank all volunteer weather observers
for their dedication. Not all data listed are considered official.

$$