Jan 18-25 Cold Wave

[HillsdaleMIWeather]

Kids here have officially gotten 5 straight snow days as of tonight. Could be 6 or 7 depending on how the weekend system goes now.

[cutlew]

Thermometer showing -20 air temp here, crazy drop this evening over the last 6ish hours from 0 at 4 pm.


.

[Cary67]

-11F this morning 

Edit:-12F currently

[cyclone77]

-13 here and still dropping.  Dew is down to -25.  

[TheRegionRat]

29 minutes ago, Cary67 said:

-11F this morning 

It's only -1 here in Hammond/East Chicago.  I know what's coming.  

[A-L-E-K]

[OrdIowPitMsp]

-21 

Coldest morning at MSP since January 2019

[A-L-E-K]

ORD still dropping down to -9

 

[madwx]

-19 here at the house. Just might be hitting the bottom now. Since this is an advection cold the normal low spots on my drive in didn’t bottom out in the -20s 

[A-L-E-K]

tough^

[King James]

Hens out back aren’t happy

[beavis1729]

-12 here. 

Rockford -14, wind chill -37, dew -28.

Duluth -29, wind chill -57.

INL -33, wind chill -51.

Wausau (only a 3.5 hour drive from here) -25, wind chill -51, dew -35.

[ILSNOW]

down to -11

[King James]

Almost in a fog / haze out by me. Looked like a big storm cloud off in the distance and now that it rolled in it feels like it’s on the ground. Hard to explain and not sure if it’s something I’ve experienced before. I’m guessing it’s from the cold

[Brian D]

Big winner this morning is Cook arpt on the N side of the Iron Range. -33 at 0655 to -38 at 0735. Winds went calm. -20's on the shore to -30's inland. Temps would have been colder except for the wind. Cook is the exception with my spot checking. Tomorrow a.m. should be calm across the board.

[OrdIowPitMsp]

Coldest windchill at MSP was -48 overnight.

[Brian D]

Morning lows across MN/WI were top 3-5 with some falling just short. Very significant cold wave. We shall see how the low max's pan out today.

[Brian D]

13 hours ago, HillsdaleMIWeather said:

Kids here have officially gotten 5 straight snow days as of tonight. Could be 6 or 7 depending on how the weekend system goes now.

Gonna suck when they have to make some of that up. Back in the day, we had a bad year, and Spring vacation got cut short. Schools are required to have so many days in a year. Unless they have an online set up that qualifies.

[Malacka11]

Tell me I'm not tweaking... I noticed on this mornings dawg walk that climbing planes from O'Hare sounded comparatively hifi. Even from definitely a few thousand feet up you could hear tarmac-style turbine whine, yk that more shrill sound, echoing loudly off of adjacent apartment buildings quite literally the way it sounds in a terminal.

I actually had a hard time finding them because the higher frequency sounds making it farther down are ofc coming when the plane is directly above you, which my monkey brain was not computing properly with how loud the sound was. Even with a clear sky, I just wasn't looking for hoes that far up and was therefore surprised when I realized.

Ig I'm just shocked that if it's as simple as cold air = denser = transmits delicate high frequency sound waves better, that it makes such a massive difference between say 20° and -9° compared to 20° and 80°. 

[Brian D]

Windchill hit -52 this morning at the TH arpt. The gusts are briefly bringing values to around -60 to -65. Here are the charts for the new n old windchill values. For us older folks, need both for reference  

[Brian D]

19 minutes ago, Malacka11 said:

Tell me I'm not tweaking... I noticed on this mornings dawg walk that climbing planes from O'Hare sounded comparatively hifi. Even from definitely a few thousand feet up you could hear tarmac-style turbine whine, yk that more shrill sound, echoing loudly off of adjacent apartment buildings quite literally the way it sounds in a terminal.

I actually had a hard time finding them because the higher frequency sounds making it farther down are ofc coming when the plane is directly above you, which my monkey brain was not computing properly with how loud the sound was. Even with a clear sky, I just wasn't looking for hoes that far up and was therefore surprised when I realized.

Ig I'm just shocked that if it's as simple as cold air = denser = transmits delicate high frequency sound waves better, that it makes such a massive difference between say 20° and -9° compared to 20° and 80°. 

Well, to put plainly n succinctly, when you have the upper atmosphere sitting on the ground, you don't have the different profiles for the sound waves to pass through. Clean shot.