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December 2019 Observations & Discussion


clintbeed1993

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You’re too generous. I was going to say until tomorrow.

 

No. That's the thing. It doesn't catch on until 36 hrs out. That's the horrible thing. I wouldn't mind if it honed in at say d5 or d4.  :lol:

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Winter 2023-24 Snow Total = 53.1" (90% Normal Season)  Largest Storm: 12" (1/12-13)   Oct: 0.1 Nov: 2.9 Dec: 7.5 Jan: 31.7 Feb: 6.0 Mar: 4.3 Apr: 0.1

Avg = 59.2"  (Harrison): 2023-24 = 53.1" 

Avg = 45.0"  (KDTW): 2022-23 = 33.5"   2021-22 = 35.6"    

Avg = 49.7"  (KRMY): 2020-21 = 36.2"   2019-20 = 48.0"   2018-19 = 56.1"   2017-18 = 68.3"    2016-17 = 52"    2015-16 = 57.4"    2014-15 = 55.3"    2013-14 = 100.6" (coldest & snowiest in the modern record!)  2012-13 = 47.2"    2011-12 = 43.7"

Legit Blizzards (high winds and dbl digit snows): Feb 2011, Dec 2009, Jan 2005, Dec 2000, Jan 1999, Mar 1998, Nov 1989, Jan 1982, Jan 1978, Jan 1977, Apr 1975, Mar 1973, Jan 1967, Feb 1965, Jan 1918

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Canadian still no phase, well south.

 

The GFS is trying to dig the northern stream energy southward well to the west of the other models, which is why it leads to a phased cutter.  The other models show the northern stream energy passing harmlessly well north and east of the southern energy.

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season snowfall: 34.8"

'22-23: 30.2"      '21-22: 27.1"      '20-21: 52.5"      '19-20: 36.2"      '18-19: 50.2"      '17-18: 39.5"

Average snowfall: ~30"

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The 00z Euro just took a big step toward the GFS.  This run digs the northern energy much farther west.    :lol:

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season snowfall: 34.8"

'22-23: 30.2"      '21-22: 27.1"      '20-21: 52.5"      '19-20: 36.2"      '18-19: 50.2"      '17-18: 39.5"

Average snowfall: ~30"

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http://theweatherforums.com/index.php/topic/2144-december-28th29th-potential-plainsgreat-lakes-cutter/ 

 

Fired up a storm thread for this even though our confidence in this being a major snow maker is still pretty low.  Models are showing it consistently enough to warrant a thread imho.  Marginal cold air is going to be a major issue for most of us it appears.

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There is a dandelion in bloom in yard this is the first time that I have seen one bloom this late in the season and no it is now on the south side of a building.  This December will go into the record books as warmer then average will much less snow than average as at this time the mean at Grand Rapids is 30.8° and that is +0.6° there has been only 8.4” of snow 15.6” is average as of this date. At Muskegon the mean is at 31.4° while this is just a departure of +0.1° there has only been 6.3” of snow fall and that is well below the average of 19.9” and at Lansing the mean there is at 30.7 that is a departure of +1.3 and just 2.9” of snow fall there. Earlier on I had a guess of between 65 and 75” of snow fall for this winter at the time I thought that was a good guess will that may be too high and maybe way too high.

At this time it is 31 here with a lot of frost but no fog.

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After studying the various model solutions in the LR, the models are certainly having a devil of a time struggling what to do with the EPO as we head into January.  The CFSv2 is the most bullish firing up the NE PAC ridge heading into Week 2 along with signs the GEFS are also hinting at that scenario as well.

 

cfs-avg_z500aMean_npac_2.png

 

 

gfs-ens_z500aMean_npac_10.png

 

 

Now, the question is, are they right or is the EPS going to lead the way with a continuation of a + EPO???  I'm struggling to believe the EPS at this time for a couple of reasons and maybe these LR tools I've used before will provide some insight.  Here's what I'm thinking at the moment....

 

Take a look at what is about to happen in East Asia/Siberia near the Sea of Okhotsk from about Day 4-10 as it replaces the trough which has been spinning there for days, with higher heights and ridging.  This often correlates to a response in the weather pattern across W/NW NAMER in the Day 6-8 range.  If that should work out, I would expect the models to start showing more ridging across western Canada/NW NAMER beginning around the Jan 4th/5th period.

 

Lastly, the 30mb Strat warming has begun to explode right where the NW NAMER ridge may begin to grow during the 1st week of January.  In the animation below, right about Dec 17th/18th, the warm pool is exploding and this is a good clue that we may in fact be seeing the modeling showing more ridging in this region.  There is normally about a 3-week lag period when using this method.

 

So, in essence, I'm seeing several LR tools lining up in a similar fashion towards the beginning of the New Year.  Will they end up right or not is the question we'll see being answered over the next few days.  IMO, there is a lot of potential for the pattern to really snap and unload the brutal cold being bottled up across North America right now.

 

 

 

temp30anim.gif

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BTW, instead of grumbling about the weather, I want to wish everyone on this forum and very Merry Christmas and a Happy New Year.  Safe travels and may you all enjoy the holiday festivities with friends and family.

 

Same to you for the holiday greetings! I'm still stepping out to snow on my property, and I consider that a major win in this hostile holiday heatwave.  :D

Winter 2023-24 Snow Total = 53.1" (90% Normal Season)  Largest Storm: 12" (1/12-13)   Oct: 0.1 Nov: 2.9 Dec: 7.5 Jan: 31.7 Feb: 6.0 Mar: 4.3 Apr: 0.1

Avg = 59.2"  (Harrison): 2023-24 = 53.1" 

Avg = 45.0"  (KDTW): 2022-23 = 33.5"   2021-22 = 35.6"    

Avg = 49.7"  (KRMY): 2020-21 = 36.2"   2019-20 = 48.0"   2018-19 = 56.1"   2017-18 = 68.3"    2016-17 = 52"    2015-16 = 57.4"    2014-15 = 55.3"    2013-14 = 100.6" (coldest & snowiest in the modern record!)  2012-13 = 47.2"    2011-12 = 43.7"

Legit Blizzards (high winds and dbl digit snows): Feb 2011, Dec 2009, Jan 2005, Dec 2000, Jan 1999, Mar 1998, Nov 1989, Jan 1982, Jan 1978, Jan 1977, Apr 1975, Mar 1973, Jan 1967, Feb 1965, Jan 1918

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Major frost out there. For a min, I thought it had snowed. Temp at 25F. Ice fog around as well, but slowly dissipating.

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Snowfall for Winter 2023 -24 for Metro Detroit Area 

Oct 2023: 0.2" AN

Nov 2023: 2.2" AN

Dec 2023: 0.5" BN Insane!

Jan 2024: 17.0" AN

Feb 2024: 1.9"  BN Insane!

Mar 2024: 4.9" BN

April 2024: Trace

Season So Far: 26.7"

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Btw: January roars in w 40s and a nice rainmaker as well. No cold air, just back to average, maybe even slightly above average (for mby).

Snowfall for Winter 2023 -24 for Metro Detroit Area 

Oct 2023: 0.2" AN

Nov 2023: 2.2" AN

Dec 2023: 0.5" BN Insane!

Jan 2024: 17.0" AN

Feb 2024: 1.9"  BN Insane!

Mar 2024: 4.9" BN

April 2024: Trace

Season So Far: 26.7"

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Major frost out there. For a min, I thought it had snowed. Temp at 25F. Ice fog around as well, but slowly dissipating.

 

33F attm, but I see we did plummet from a high of 53F down to a brief 26F a bit after midnight. Then the fog/clouds? saw temps rising slowly all night. 

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Winter 2023-24 Snow Total = 53.1" (90% Normal Season)  Largest Storm: 12" (1/12-13)   Oct: 0.1 Nov: 2.9 Dec: 7.5 Jan: 31.7 Feb: 6.0 Mar: 4.3 Apr: 0.1

Avg = 59.2"  (Harrison): 2023-24 = 53.1" 

Avg = 45.0"  (KDTW): 2022-23 = 33.5"   2021-22 = 35.6"    

Avg = 49.7"  (KRMY): 2020-21 = 36.2"   2019-20 = 48.0"   2018-19 = 56.1"   2017-18 = 68.3"    2016-17 = 52"    2015-16 = 57.4"    2014-15 = 55.3"    2013-14 = 100.6" (coldest & snowiest in the modern record!)  2012-13 = 47.2"    2011-12 = 43.7"

Legit Blizzards (high winds and dbl digit snows): Feb 2011, Dec 2009, Jan 2005, Dec 2000, Jan 1999, Mar 1998, Nov 1989, Jan 1982, Jan 1978, Jan 1977, Apr 1975, Mar 1973, Jan 1967, Feb 1965, Jan 1918

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At Clinton

 

Do the paid/premium Euro data go out beyond d10? Curious what becomes of this??

 

20191024 0z Euro_mslp_pcpn_frzn_us_h240.png

Winter 2023-24 Snow Total = 53.1" (90% Normal Season)  Largest Storm: 12" (1/12-13)   Oct: 0.1 Nov: 2.9 Dec: 7.5 Jan: 31.7 Feb: 6.0 Mar: 4.3 Apr: 0.1

Avg = 59.2"  (Harrison): 2023-24 = 53.1" 

Avg = 45.0"  (KDTW): 2022-23 = 33.5"   2021-22 = 35.6"    

Avg = 49.7"  (KRMY): 2020-21 = 36.2"   2019-20 = 48.0"   2018-19 = 56.1"   2017-18 = 68.3"    2016-17 = 52"    2015-16 = 57.4"    2014-15 = 55.3"    2013-14 = 100.6" (coldest & snowiest in the modern record!)  2012-13 = 47.2"    2011-12 = 43.7"

Legit Blizzards (high winds and dbl digit snows): Feb 2011, Dec 2009, Jan 2005, Dec 2000, Jan 1999, Mar 1998, Nov 1989, Jan 1982, Jan 1978, Jan 1977, Apr 1975, Mar 1973, Jan 1967, Feb 1965, Jan 1918

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Do the paid/premium Euro data go out beyond d10?

 

Nope.  The op Euro is only 10 days.  EPS is 15.

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season snowfall: 34.8"

'22-23: 30.2"      '21-22: 27.1"      '20-21: 52.5"      '19-20: 36.2"      '18-19: 50.2"      '17-18: 39.5"

Average snowfall: ~30"

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The surface temp here underperformed yesterday, but today we're back on track... several degrees higher at 11am.

season snowfall: 34.8"

'22-23: 30.2"      '21-22: 27.1"      '20-21: 52.5"      '19-20: 36.2"      '18-19: 50.2"      '17-18: 39.5"

Average snowfall: ~30"

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33F attm, but I see we did plummet from a high of 53F down to a brief 26F a bit after midnight. Then the fog/clouds? saw temps rising slowly all night. 

Yep..temps dropped last nite thanks to a dry, weak CF that rolled on through.

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Snowfall for Winter 2023 -24 for Metro Detroit Area 

Oct 2023: 0.2" AN

Nov 2023: 2.2" AN

Dec 2023: 0.5" BN Insane!

Jan 2024: 17.0" AN

Feb 2024: 1.9"  BN Insane!

Mar 2024: 4.9" BN

April 2024: Trace

Season So Far: 26.7"

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This is what I found during my quick research. The warmest Detroit has eva experienced was 64F back in 1982 on Christmas Day. A year later, it was -10F on C.D.

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Snowfall for Winter 2023 -24 for Metro Detroit Area 

Oct 2023: 0.2" AN

Nov 2023: 2.2" AN

Dec 2023: 0.5" BN Insane!

Jan 2024: 17.0" AN

Feb 2024: 1.9"  BN Insane!

Mar 2024: 4.9" BN

April 2024: Trace

Season So Far: 26.7"

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