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Central PA Winter 23/24


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6 hours ago, Jns2183 said:

2017-2018 38"
2018-2019 41"
2019-2020 5.1"
2020-2021 36"
2021-2022 16.4"
2022-2023 5.9"
Mean 23.73"

Snowfall climo
1970-2000
Mean 32.8"
Median 27.8
75th percentile 42.7"
25th percentile 19.6"

1980-2010
Mean 30.6"
Median 24.9"
75th percentile 41.2"
25th percentile 16.75"

1990-2020
mean 29.3"
median 22.9"
75th percentile 40"
25th percentile 14.75"

From 1990-2020 # of years with snowfall within bin

70" 2
60" 0
50" 2
40" 3
30" 4
20" 9
10" 9


So basically in last 6 years we have had 1 year at 75th percentile, 2 years in the 60th percentile, 1 year at 25th percentile, and 2 years at basically the 1st percentile.

Anyways, it's not the worst 6 year period on record anyways. Some similar periods
1928/29 to 1933/34 mean snowfall was 21.4"
1986/87 to 1991/92 mean was 24.3"

And who can forget the worst 6 years ever, 1996/97 to 2002/3 with mean of 19.3". Those 6 years had a max of 28", and 4 winters in 20" range, 2 winters at 10". That period was bookended by the greatest winter ever , 1996 with 77.6, and the 2002/3 winter with 57.7".

The last 6 years have been bad, but we've had similar in the late 80s to early 90s and worse, both in the distant past (late 1920's to early 1930's) as well as late 90's till 2002.

The massive difference between mean and median highlights our feast and famine past and present. From 1990 to 2020 only 35% of years were "above average" for snowfall. So we can expect 6-7 winters per decade to be below average while 3-4 to be above.

Now look at last 6 years. 3 years above average, 3 years below. It's just been our below years were pure famine

Sent from my SM-G970U using Tapatalk
 

Post of the year!

Great, great post that should lead off every page on here!

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5 hours ago, Blizzard of 93 said:

The 0z GFS shows what the upcoming pattern change could deliver to start off the New Year.

IMG_3667.png

 

The 0z Euro Control also has a good looking storm for January 2nd that takes a very favorable track. 

Yes, I know…long range Control run, but nice to see storms like this starting to show up in the upcoming pattern.

IMG_3669.png

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Lows this morning were still a couple degrees above normal with widespread mid to upper 20's across the county. We should see continued dry weather with near normal temperatures today a little below normal tomorrow before a nice warming trend through Christmas. Temps by Christmas Day should be in the upper 40's - normal high is about 39 degrees. Next rain chances look to be Christmas Night.
Records for today: High 62 (1895) / Low +1 (1942) / Rain 2.29"(1957) / Snow 8.8" (1966)
image.png.06d018946088c6a45b2f047fc3e61d45.png
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6 minutes ago, paweather said:

Reviewing 6z? Makes sense...we shall see. 

Yea, on the 6Z.  Eastern side of the country is evacuated of BN temps on the 27th.  Not a torch either, just mild.  Colder air works in after Jan 1 but only for a few days as it looks transient.  Highs in the mid 40's Jan 4th.  Just a LR PBP on an Op model, not a forecast. 

image.png.43dd48e04dbb2ffd7f40fe53da5f08b0.png

 

 

 

 

 

 

 

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