Welcome cold front

[J West]

What a refreshing night! Had some rain this afternoon, then wind/drizzle as the front moved through, now it's chilly and clear. It's about time The air is clean and fresh, straight from Canada/northern Plains.

The only problem is I know snow is around the corner, but it comes with territory.

 

[Angie Norris]

Just got home from work a few minutes ago...awesome weather
Close to 60 degrees with nice north winds ...cool little "dust storm" this afternoon...haven't ever seen that before...very cool. Just wish I could have gone chasing this afternoon :cry:
This is my second favorite time of year :wink: 8)
Angie

 

[christian_schoeps]

Oh... all over the northern hemisphere a lot of weather freaks wish to have "winter" weather, at least even colder than summer temperatures...

After a week of sick high pressure weather without any interesting activity, this weeks our classic west circulation starts. The polar jet - our weather motor - intensified last days around Iceland. Our extratropical storm season should start this autumn ... i hope so

Many of us also hope to get a snowy and cold winter with much n-s-circulation east of a large blocking high in the area around iceland within the next 2 month .

Snow can be sooo cool...some pictures from my last winter:

I like it. Sorry for the pics in this thread... but perhaps you enjoyed it

Bye
Chris

 

[Andrew Pritchard]

Bah, this cold front is not welcome here. The weather was already perfect here in central IL with sunny skies during the day with a high in the upper 70s.. with clear nites and lows in the 50s. I might not hate it so much if it wasnt for how ugly it made things. The day started off bright and sunny, but by afternoon was a digusting grey, dreary and rainy evening.. and now its a blustery, rainy and cold nite. Blegh. Yes, this is much better. :roll:

 

[Mike Umscheid]

36F in Hays, KS at this time (235am). I love western Kansas. Finally some mid-latitude weather to analyze on the upper air charts... +130/-130 meter height change couplets are fun to analyze ;-) Looks like we'll bottom out at 43 or so here in Dodge, mid-high clouds from that cutoff are impinging on the area... Fall baby!

Mike U

 

[Karen Politte]

The bad news = Norman's pit effect even works for cold frontal grunge in September.
The good news = I guess they haven't got it to work for smaller particles like DUST yet?

I guess that's something.....

Yesterday certainly was an interesting day - but totally dry here in OUN. The prefrontal wind shift came about in early afternoon and by about 3pm the winds were howling in places with gusts to 40mph. Our birdtable fell off the tree.

All we really got out of yesterday was the obvious cool down, and a neat panorama with the northern horizon dusty brown as the big winds came in, and our southeastern horizon filled with towering cu punching up into the atmosphere. There were a few nice domes on those big storms in SE OK yesterday......looks like they nailed the SLGT area......

Currently trying to figure out whether the dust-stirring yesterday has sent my nose/throat haywire, or if (more likely) I've caught something on the flight home. :?

KR

 

[Jeff Miller]

WOW

The temperature in Sioux City Iowa KSUX dropped to 30 degrees. According to the NWS readings, it was below freezing for a total of 4 hours. I do believe this supports a "Freeze Warning" but not so much as a frost advisory was issued. Needless to say, it felt like winter.

 

[Andrew Khan]

I don't know if this cold front has made it here tonight, but temperatures right now are in the High 50's. Has the cold front made it here yet?

 

[nickgrillo]

Originally posted by Andrew Khan
I don't know if this cold front has made it here tonight, but temperatures right now are in the High 50's. Has the cold front made it here yet?

Yes, it has... This was a very strong cold front - and you'll know when it has passed. A cold front replaces an airmass with cold air (just as the name implies).

I woke up freezing LOL... Its in mid 50s here :roll:

 

[Jeff Lawson]

My thermometer here at home showed a low temp of 34 degrees overnight. The ASOS station a couple miles away registered 37. So, looks like mid-30s. Before going to bed, I noticed several stations to my north and west reporting temperatures at or just below freezing. McCook was even reporting flurries... I'm assuming that was erroneous.

62 degrees right now with sunshine. It's comfortable outside, but I'm freezing my butt off inside. Perhaps I should've ran the heat some overnight.

 

[christian_schoeps]

Yes, it is nick! Along the front surface dewpoints drops down by about 10-11K in short distance. Dewpoint before around ~60 °F even falls down to 40 °F.

I do not like such a deep cold front. Often there is only little weather activity.

Today I got a great "backside day". Many cold-air storms formed and I got a very impressive hit at home with a nice hailstorm (pea sized hail forming hail layer). Surprising high electricity...

That's from here...

Bye
Chris

 

[Andrew Khan]

Thanks Nick, I just looked at the 'fronts map', and I see it's really made it's way here. What makes a front (Cold or warm) stronger than one or the other? Wish it was colder here though.

 

[christian_schoeps]

@Andrew:

In case I'm not nick... how strong a cold front is you can imagine watching the change of airmasses which can be best characterized by theta e.

German GFS plot:

The higher the difference along the border is the stronger the front.

 

[nickgrillo]

http://www.rap.ucar.edu/weather/model/disp...hr132hr156hr180

:roll:

 

[Andrew Khan]

Well I did not have that hyperlink Nick....so thanks for posting it I guess. But, it's not working right at this moment anyway. Neither is the RAP database..But it makes since now.