Here's one thing I've discovered the hard way. Minnesota Nice quickly evaporates when you try to share warm weather travel experiences in late February. "Paul, you can (deleted) your (bleeped) and [censored] your tropical weather patterns!"

Message received.

Now it's all about collective suffering - and surviving long enough to take in any kind of spring break. 10th coldest meteorological winter to date....and counting. That makes this the coldest stretch since December 21 since the brutal winter of 1978-1979, according to the Minnesota Climatology Working Group.

Oh yeah, on paper the 90 coldest days of the year, on average, should come to an end Saturday. Uh huh. Old Man Winter doesn't seem to care. He's stuck in a supernaturally persistent rut; the jet stream remains locked. Natural atmospheric variability, the natural ebb & flow of warm and cold, has been replaced by perpetually polar air - while much of the rest of North America runs a low-grade fever.


Windchill Advisories are in effect today; we may not climb above 0F with a chill factor dipping to -30F. Blizzard Warnings are posted just west of MSP for low visibility in blowing/drifting snow. Highly unusual for late February. Then again, highly unusual is the new normal.

Models hint at 30s by mid-March, but I've lost my faith in long-range models this winter. So far it's been meteorological bait and switch. The honest answer? It WILL warm up. I'm just not sure when.

* Photo above of "Chewie" from Steve Erdahl at the Mtka Yacht Club House on February 23.

Record Territory. Back in 1963 the Twin Cities endured 23 days worth of hours below zero. We just passed 20 days worth of negative numbers (over 480 hours below zero), according to Daryl Herzmann at the Iowa Environmental Mesonet. Good grief. Make it stop.

Coldest Daytime Highs - More Records Imminent? The short answer appears to be yes. Here's a post from the Twin Cities National Weather Service: "The current cold snap, which is a part of the coldest winter in 35 years, is breaking records again. The coldest high temperatures that have been recorded back to the late 1800s on February 25 through March 2 are listed for the Twin Cities, St. Cloud and Eau Claire.

Percentage Of Time Below Freezing Since December 1. I was feeling pretty blue about the Twin Cities being colder than 32F for over 90% of the time since December 1, the start of Meteorological Winter. And then I saw Grand Forks coming in at 99%. Thanks to Iowa Environmental Mesonet for cheering us up.

National Percentage of Time Below 32F Since December 1. Not much of a break from the Upper Mississippi Valley and Great Lakes into much of New England. Details here.

All-Time Records Next 7 Days (average high at MSP on February 27 is 33F, average low is 18F)

* Thanks to Aaron Shaffer at WeatherNation TV for tracking these down from the Minnesota Climatology Working Group. I can't believe I'm still showing this stuff...

Deep Ground Frost. I've had a few questions about the depth of the frost this super-winter, concerns about wells freezing up, and how deep frost in the ground might escalate run-off and flooding when it does finally decide to warm up. According to MnDOT the depth of the frost near Monticello is between 70-75", which is deeper than I can ever recall.

It May Warm Up A Little Next Week - Or Not. This next wave of the Polar Vortex lingers into Monday, and then temperatures try to recover next week, at least reaching 20s. Not quite a thaw, but beggars can't be choosy. At this point we'll take what we can get. ECMWF data shows 20s the latter half of next week. Graph: Weatherspark.

84 Hour Snowfall Prediction. Here is NOAA's NAM snowfall prediction into Saturday night, showing potentially plowable amounts of snow from the Midwest into the Great Lakes, and portions of the northern Rockes and Cascade Range of Washington State. Map: Ham Weather.

20 F. high in the Twin Cities Wednesday.

33 F. average high on February 26.

36 F. high on February 26, 2013.

Trace of snow fell yesterday.

20" snow on the ground.

TODAY: Windchill Advisory. Numbing blue sky. Feels like -25F. High: -1

THURSDAY NIGHT: Partly cloudy, still way too cold. Low: -13

FRIDAY: Clouds increase, a little snow by Friday night, maybe an inch or so. High: 14

SATURDAY: Snow far southern MN early. Turning colder. Wake-up: -6. High: 4

SUNDAY: Sunny. What happened to March? Wake-up: -12. High: 2

MONDAY: Sunny. Call out the National Guard. Wake-up: -13. High: 8

TUESDAY: Not as numb. Chance of flurries. Wake-up: -2. High: 11

WEDNESDAY: Light snow. Some accumulation. Wake-up: 9. High: 21

* expect highs in the 20s the latter half of next week.

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Wednesday Ground Blizzard For Southwest Minnesota

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46 Subzero Nights - Most Since 1935-36 (couple inches of snow later today)