Tuesday, February 28, 2012

Heaviest Precipitation Moves Through Tuesday Night and Wednesday

Todd's Conservation MN Outlook for the Twin Cities and all of Minnesota

 TUESDAY NIGHT: Winter Storm Warning (Blizzard Warnings west central MN). Any sleet or freezing rain changes to mostly rain from the metro on south. Thunder possible with rain, heavy at times. Low: 31 (icing may be significant outside the immediate metro area).

WEDNESDAY: Wet snow tapers, 1-3" more snow possible, mainly morning hours. High: 34 (Major roads probably wet).

THURSDAY: Sunny start, clouds late. Low: 22. High: 35

FRIDAY: Small chance of snow (the brunt of the storm probably passes east of Minnesota). Low: 26. High: 34

SATURDAY: Mostly cloudy, few flurries possible. Low: 21. High: 31

SUNDAY: Another clipper - flakes in the air. Low: 15. High: 27

MONDAY: More sun, warming up again. Low: 20. High: 38

Winter Storm Continues Into Wednesday

It's A Big Storm
Look at what this system is doing. It has prompted winter warnings and advisories from Phoenix, AZ to Marquette, MI

Timing the Precipitation
Now that the system has starting spitting out precipitation close to home, here's a look at the timing of the precipitation.
10pm Tuesday
The main surge of moisture will have set up over the Twin Cities and central Minnesota, mainly rain with snow setting up across central Minnesota (mixing with sleet at timesat times)
12AM Wednesday
Rain continues for the southern third of the state (maybe even a little thunder). Snow, heavy at times, across central Minnesota and the western tip of Lake Superior will begin to really add up.
6AM Wednesday
We should start making the transition back to snow as colder air begins wrapping in. This is when we should start seeing some of the snow start accumulating across the Twin Cities.
12pm Wednesday
snow will become lighter across much of the state, but could continue at moderate levels near Duluth.

Total Precipitation
This is going to be a wet night ahead, models are still hinting at the potential of 1" to 2" of liquid in spots.

Could Be The Biggest Precipitation Event Since Late Last Summer
The Twin Cities is on the brink of the heaviest precipitation event in quite some time. This is a look at some of the benchmarks, note that the last time we had at least 1" of liquid in a single day was last summer (nearly 7months ago).

Nam Snowfall
The 18Z NAM actually shifted south just a bit! The heaviest is still expected to be across central MN, but some communities on the northern side of the metro could actually be shoveling on Wednesday!

GFS Snowfall
The GFS keeps the heaviest snow across central Minnesota.

Don't forget to follow me on Twitter @TNelsonWNTV
-Meteorologist Todd Nelson-

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