* Chance of significant snowfall has diminished a bit today, leaning toward a coating to 1" later, mixed with freezing drizzle. Highs near 30 should mean wet/slushy interstates/freeways - side streets and bridges may become icy.
* Brief break in the action Friday as temperatures fall through the 20s.
* Second, much more significant snowfall late Friday night into Saturday. Unlike today's wet, slushy (icy) snowfall, Saturday's snow will be dry/powdery/fluffy - quick to accumulate, prone to blowing and drifting by afternoon and evening, especially outside the metro area. Potential for 3-6" with a few 8" amounts possible close to home.
* Dangerously cold weather arrives over the weekend - wind chills dip into the -20 to -35 range by Saturday night and Sunday. Highs may not climb above zero across much of Minnesota Sunday and Monday.
* I realize this is Minnesota - the locals know how to dress/adapt for bitter cold, but it's worth repeating: the risk of frostbite and hypothermia (gradual drop in body temperature) will be very high from late Saturday into midday Monday. Plan on checking in with older friends, family and neighbors to make sure their homes/apartments are staying warm enough. Symptoms of hypothermia include uncontrollable shivering, disorientation and "gibberish" - if you suspect hypothermia call 911 immediately.
Saturday Snow. I want to see a few more model runs, but the latest guidance is hinting at a "plowable" snowfall Saturday across much of central and southern MN, the heaviest amounts south of St. Cloud and Mille Lacs. The map above is the NAM model valid 6 pm Saturday evening, showing accumulated snow the previous 6 hours. An inverted trough, a wave of low pressure passing off to the south, will provide enough "lift" for 5-8 hours of light, fluffy, powdery snow.
Paul's Conservation MN Outlook for the Twin Cities and all of Minnesota:
THURSDAY NIGHT: Light snow and freezing drizzle, coating to an inch possible. Low: 18
SATURDAY NIGHT: Flurries taper - wind chill dipping to -25 at times. Low: -8
"I knew I was on thin ice when a close friend who is CEO of a tech company cautioned me: "It will get attention, and people will call it BS, and I will be one of them." It was a sobering comment echoed by the folks at Ad Age when they gently suggested I better have a damn good argument as claiming that Facebook has "jumped the shark" was likely to be "controversial."