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12/28 - 12/29 Plains/MW/GL's Snow Event


Tom

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Per GRR, I may get upgraded to a headline later this evening.. :)

 

The lake enhanced banding is shown to extend well inland this evening/tonight. We may need to push the advisory further inland if this ends up occurring.

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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10.2” from last nights lake band in about 3 hours. Crazy rates.

 

Awesome fun times! 'grats!  More fun stacking flakes later on today/tonight. I'm liking my chances of being added to the headline party

 

namconus_ref_frzn_us_fh10-31.gif

 

20171229 GRR Snow-cast for Lwr Mich.png

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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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That initial bright band on radar meant business.  Large dendrites poured down for a while and I'm near an inch already.  That band has moved off to the east and the flakes have shrunk down quite a bit in response.

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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Was just out driving in the Cedar Rapids area. Roads were very slick. Heavy band about 30 minutes ago was dumping large flakes. Now it's pouring small flakes. I think we should easily get 6 inches here in Cedar Rapids. Maybe more if the snow can come down faster. 

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I was pretty excited about that band of large dendrites that dropped a quick inch last hour.  However, for the last 40 minutes the flakes haven't been much better than pixie dust.  We need to get the better flakes back.  I'm still thinking 4-5 here in CR.

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 southern edge is pretty sharp, as expected.  Des Moines still hasn't seen a flake, while a band of heavy snow is parked just northeast over Marshalltown.

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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2.2" as of 12pm(0.4" in the last hour), so the rate of accumulation has gradually dropped over the last couple hours.  We need to get the bigger flakes back in here.

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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2.2" as of 12pm(0.4" in the last hour), so the rate of accumulation has gradually dropped over the last couple hours. We need to get the bigger flakes back in here.

I’m just curious, is Cedar Rapids up in higher elevation than the other surrounding communities? That higher snowfall forecast just for there looks like something you see in the black hills!!

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I’m just curious, is Cedar Rapids up in higher elevation than the other surrounding communities? That higher snowfall forecast just for there looks like something you see in the black hills!!

 

Nope.  This area is pretty flat.

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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I measured 2.5 inches in Cedar Rapids at 12:30. There are some really nice looking signs on radar to my northwest that are moving ESE. Dark green showing up near Fort Dodge. I think we should still be able to get at least 5-6 inches in Cedar Rapids. Maybe more than that if those radar returns get stronger and more organized. 

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At 1pm, 2.7", still about a half inch per hour.  Flake size has improved a bit.

 

A Marshalltown spotter reported 3.8 over an hour ago, so they must be near 5 by now.

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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 LES is a big wild card, on the other hand, I'm seeing both NAM's picking up on the meso-low feature.  Gosh, if we can get that to swing through and drop a couple inches that would be more icing on the cake.

12z Euro shows this very well. Guess its a good sign if globals are showing LES

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