Current Conditions at Sanborn Field

Tonight  - Overcast. Snow will end late evening. Low: 16-20.

Tuesday - Sunny. High: 28-32.

Tuesday night - Clear. Low: 15-19.

Wednesday - Sunny with clouds increasing through the evening. High: 38-42.

Thursday - Mostly sunny. High: 44-48.
 

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Discussion:
Low pressure associated with a cold front that moved through the area this morning has brought snowy, overcast skies that will continue through late Monday evening. Snow will end late tonight before midnight. We should end up with snowfall totals between 1.5 - 3 inches. Once this area of low pressure moves out, high pressure moves in and will keep us sunny and clear throughout most of the week. Temperatures will remain far below normal for this time of year, but the highs do increase throughout the week.
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Forecaster: Danaher, Johnston, Brown, Market and Hirsch
Issued: 4:30 p.m., November 12, 2018

Technical Discussion (The nerdy stuff we are discussing in class!)

We will continue to see early season snow today as the atmosphere remains saturated and temperatures remain far below average. The snow is all post-frontal; the front has already moved through the area with little pressure and temperature change. Snow potential will continue until the late evening hours when the atmosphere dries out between 0300 and 0600 UTC Tuesday. With the highest lifting happening above 500mb, much isn't expected in terms of heavy snowfall amounts. High pressure will move in Tuesday morning and keep our skies clear throughout the day. We also took a look at a blend of the 12Z NAM and GFS going into Wednesday and Thursday due to their consensus. Wednesday shows a sunny day with mid-level clouds moving in during the afternoon according to GFS soundings. These clouds will linger into Thursday morning, but look to clear out later in the day after comparing NAM and GFS forecast soundings. Later shifts should look for the potential of clouds lingering later than currently forecasted on Thursday, and effecting potential high temperatures. Temperatures continue to stay well below the climatological average. The high will move off to our southwest, keeping us in northerly flow that will reinforce the cold air.