THE SNOWY PICTURE BECOMING CLEARER...
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LATEST RUN OF THE EURO
The latest run of the EURO operational is down and I think it's representative of where the trends are heading with the next snow event. Here's a couple snowfall forecasts of the king.
The Iowa based perspective.
Here's what to look for over the next 72 hours.
*Some light snow late tonight and parts of Wednesday over the far southeast ...best chances southeast of a line from Memphis Mo. to Burlington, Iowa and then northeast to Kewanee and Chicago in Illinois. 1-2" possible here.
*A more significant wave arrives with snow Wednesday night and into Thursday...best chances for 2 to perhaps 5" of snow southeast of a line from Grinnell, Iowa to NW of Cedar Rapids, Dubuque, and on the Madison.
*Unseasonably cold temperatures. Mostly likely the coldest Halloween high on record.
Wednesday: A frontally forced band of light to briefly moderate snow should gradually diminish or end in the morning after depositing 1 to perhaps 2 inches of accumulation in extreme SE Iowa and WC Illinois. The remainder of my area remains dry. Expect highs to remain well below normal in the mid to upper 30s.
The snow forecast tonight through Wednesday.
These are the current advisories for tonight and Wednesday.
Wednesday night and Halloween: A more significant system is expected to impact my region. Both the GFS and EURO bring a strong negatively-tilted trough and deepening low pressure through the Midwest and into the Great Lakes. Models indicate a classic closed upper air low and deformation zone that will track across the region. Snow will begin working into the west towards late afternoon, spreading northeast across the remainder of the area during the evening. Moderate to possibly heavy snow is then expected later in the night into early Thursday morning with mainly light snow for much of Halloween. The snow ends west of the Mississippi by late afternoon and in the eastern counties during the evening. There is the potential for 2 to 5 (perhaps 6) inches of accumulation but minor revisions are still possible. Headlines will likely be issued at some point Wednesday. Halloween will be exceptionally cold with highs only in the lower to mid 30s. That would make Halloween 2019 the coldest on record!
The Weather Prediction Center has this for odds of at least 1" of snow over the next 72 hours.
Needless to say more winter weather is on the way, especially Wednesday night and Thursday for the bulk of my area. Still some time for models to make a few revisions and I'll have an update or two this evening, especially if anything significant pops up. Until then, Roll weather...TS