January 21, 10 PM Weather Forecast Update

Here is your latest forecast update with focus on Sunday-Tuesday & Thursday potential winter precipitation.......

Posted: Jan 21, 2021 9:32 PM
Updated: Jan 21, 2021 10:28 PM

As of January 21, January 2021 is the 15th warmest (mean temperature) since 1879 in Greater Lafayette (Purdue University 1879-1943...Purdue Airport 1944-Present).

Highs today were mild at 43-51 with peak winds gusts as high as 42 mph.

Colder weather is ahead.

Winter precipitation is ahead as well............let's focus on Sunday, Monday, Tuesday & Thursday...........& then systems in early February....

First.....Sunday-Tuesday.............

Snow to ice to rain to ice to snow is likely in the late Sunday to early Tuesday time frame.

The exact time line of change-overs continues to be unclear, but minor snow/ice accumulation is possible early in the system & again late.

The middle may have rain........however, the north looks to be the last to change to rain, so areas along & north of US 24 will have a much longer duration of frozen precipitation.

If it tracks a bit more to the south, then there will less to no rain & more frozen precipitation.

Thursday.............

This is an all-snow system, but the track is unclear.  This will dictate any snowfall amounts.

There is a system, but close monitoring over the next several days will determine magnitude of impacts here.

I am focused on a mantle of snow & a clear calm night with strong surface high by end of next week meaning lows near 0.

A quickly as the cold snap settles in, it moves out rapidly.  Strong southerly winds with much warmer weather & rainfall should arrive by February 1.

This is the first of many systems to February 10 with surges of above to well-above normal temperatures.

This also means multiple rounds of severe weather across the southern U.S. to parts of the Ohio Valley & perhaps even as far north as our area.

February 5-6 time period shows strong storm system with near/record warmth & severe weather risk here.  We will monitor.

Much colder weather with ice & then snow are likely in mid-February.

Burst of much warmer, wetter weather looks likely in late February.

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