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Midwest & Great Lakes November 20-21st Snowstorm


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DSM-- 00Z GFS

SAT 00Z 21-NOV  -0.5    -3.8    1018      95      99    0.36     551     536    SAT 06Z 21-NOV  -1.3    -7.2    1022      93      99    0.31     544     527    SAT 12Z 21-NOV  -5.5    -9.4    1027      83      27    0.04     538     516    SAT 18Z 21-NOV  -6.6   -11.8    1030      82      29    0.00     534     511

The two loudest sounds known to man: a gun that goes bang when it is supposed to go click and a gun that goes click when it is supposed to go bang.

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Omaha is a tough call no doubt. I think the city will at least get a couple inches.

 

GFS has the bullseye very close to my location now.

Mercer Island, 350 ft

2021-2022: 11.6", 02/21

2020-2021: 15.6"

2019-2020: ~10"

2018-2019 winter snowfall total: 29.5"

2017-2018: 9.0", 2016-2017: 14.0"

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Omaha is a tough call no doubt. I think the city will at least get a couple inches.

 

GFS has the bullseye very close to my location now.

Ya, folks in Omaha are prob pulling their hair out (if there is any left)  ;) ...let's see, last system dug farther SE...has been the trend...still about 12-16 hours away...lets see where precip starts forming Friday afternoon.

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what's the difference in how the snowfall totals are calculated between tropicaltidbits and instantweathermaps? quite a difference in the amounts over eastern Nebraska. tropicaltidbits looks to have 6" and instantweathermaps has barely 3 for Omaha

 

Instant Weather Maps uses accurate ratios while TD usually uses standard 10:1 ratios 

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Just gauging what the marine influence is doing on the other side of the lake at Holland. With the lake just as warm over there, the air temp is 40° with a dewpoint of 22°.

A lot of room for evaporative cooling when adding moisture to the mix.

Mercer Island, 350 ft

2021-2022: 11.6", 02/21

2020-2021: 15.6"

2019-2020: ~10"

2018-2019 winter snowfall total: 29.5"

2017-2018: 9.0", 2016-2017: 14.0"

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No, that is free. I used to be subscribed to a site where I could get access to all kinds of maps and the setup was very nice, but can't remember the name.

 

Weatherbell?...

Mercer Island, 350 ft

2021-2022: 11.6", 02/21

2020-2021: 15.6"

2019-2020: ~10"

2018-2019 winter snowfall total: 29.5"

2017-2018: 9.0", 2016-2017: 14.0"

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Jim flowers is holding strong at 3-3.5". It seems pretty bold for OMA but he knows his stuff, we shall see.

I like Jim and also really like Bill Randby. I normally watch KETV too. Bill has us with only 1-2" and his in house model only gives us .5". He kept talking about dry air and warm temperatures really limiting Omaha. In fact his in house doesn't even have rain starting til like 4pm

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