-67F. coldest wind chill ever observed in the Twin Cities: January 22, 1936 (new formula). This would have been a wind chill of -87F using the wind chill formula in use before 2001. Details below.
Trouble on the Tundra
Can you feel colder than numb? Not sure, but a wind chill this low cools your skin and body core temperature down much faster, increasing the risk of frostbite & hypothermia exponentially.
Check in on older friends and neighbors today to make sure they're staying warm.
Limit or even eliminate time spent outside today. So often media reports of crime, traffic tangles or severe storms exaggerate and hype the risk.
Not today. It's truly dangerous out there.
Arctic scientists talk of a 30-30-30 Rule. A temperature of -30F with 30 mph winds can freeze your skin in 30 seconds. It won't be quite that extreme out there today - but close; frostbite certainly possible on exposed skin within a couple of minutes this morning.
The all-time MSP wind chill record is -67F, set January 22, 1936. That's using the new, warmer wind chill formula. Old, pre-2001 formula? -87.
It won't get THAT cold, but an air temperature of -25F coupled with 25 mph winds will make it feel like -50 to -55F early this morning.
Call in sick (of winter). I'll write you a note.
Storms will strafe Chicago and the Great Lakes, but no big snowfalls are imminent here, just a badly needed thaw, with 30s this weekend and much of January.
One small silver lining: the mercury has to reach -40F or colder to kill off beetle pests in Minnesota's North Woods.
...HISTORIC AND LIFE-THREATENING COLD AIR HAS ARRIVED... ...THIS IS A PARTICULARLY DANGEROUS SITUATION... .A WIND CHILL WARNING REMAINS IN EFFECT FOR CENTRAL AND SOUTHERN MINNESOTA AND WEST CENTRAL WISCONSIN THROUGH NOON TUESDAY. THE COLDEST AIRMASS SINCE 1996 IS MOVING INTO THE REGION AND WILL BE WITH US INTO TUESDAY. WIND CHILL VALUES TODAY WILL RANGE FROM 30 BELOW TO 45 BELOW ZERO. TEMPERATURES TONIGHT WILL BOTTOM OUT IN THE 20S AND 30S BELOW ZERO WITH ONLY A SMALL RECOVERY ON MONDAY. THE ARCTIC COLD TONIGHT AND MONDAY WILL BE ACCOMPANIED BY BRISK NORTHWEST WINDS. THE COMBINATION OF THE COLD AND WIND WILL PRODUCE WIND CHILLS OF 50 BELOW TO 65 DEGREES BELOW. THIS IS A LIFE THREATENING SITUATION IF YOU BECOME STRANDED. WIND CHILLS COLDER THAN 50 BELOW CAN CAUSE EXPOSED FLESH TO FREEZE IN ONLY 5 MINUTES. COVER AS MUCH FLESH AS POSSIBLE WHEN VENTURING OUT OVER THE NEXT FEW DAYS. THE GUSTY WINDS WILL ALSO BRING AREAS OF BLOWING SNOW TO MUCH OF THE AREA THIS AFTERNOON AND TONIGHT. WIND GUSTS MAY REACH 35 TO 45 MPH OVER WESTERN AND SOUTHERN MINNESOTA. AS A RESULT...VISIBILITIES MAY BE REDUCED AT TIMES TO LESS THAN A HALF MILE...WITH NEAR BLIZZARD CONDITIONS. THIS WILL BRING AN ADDITIONAL LEVEL OF DANGER TO ANYONE STRANDED.
Slow Moderation By Midweek. Then again temperatures have nowhere to go but up. The solid green line marks the 0F isotherm, solid red shows readings colder than -20F, pushing into the western suburbs of the Twin Cities this morning. The core of the coldest arctic air begins to lift north by Wednesday. Animation: NOAA and Ham Weather.
* more details on how the wind chill is derived from NOAA here.
TODAY: Windchill Warning. Dangerously cold. Coldest Jan. 6 on record for much of Minnesota? Feels like -40 to 50F early. Winds: NW 15-25. High: -15
MONDAY NIGHT: Windchill Warning. Partly cloudy - still frigid. Low: -20
TUESDAY: Windchill Warning until noon. More sun, less wind. Feels like -35F. High: -3
WEDNESDAY: Blue sky. Hello zero! Wake-up: -12. High: 4
THURSDAY: Some sun, not nearly as harsh. Wake-up: -3. High: 17
FRIDAY: Mostly cloudy, risk of a thaw. Wake-up: 13. High: 32
SATURDAY: Dripping icicles. Much better. Wake-up: 20. High: 34
SUNDAY: Cloudy, above average temps. Wake-up: 26. High: 32
* photo courtesy of Steve Burns.