Updraft

Updraft: September 29, 2010 Archive

Metro Frost? (Plus amazing Chaska flood video)

Posted at 8:10 AM on September 29, 2010 by Paul Huttner
Filed under: Fall

We may not need to be reminded that it's October this weekend.

A shot of cool Canadian air will pour south starting Friday, and we could see the first frost of the year in parts of the metro this weekend.

While we may escape a killing frost in the core of the metro, temperatures may dive into the 30s on Saturday and Sunday morning across much of eastern Minnesota, including the north and east Twin Cities area.

Here's a look at the computer runs for weekend lows.

1 2 frost.jpg
Temps may dive into the 30s Sunday AM.
(click for bigger image)

MinT4_mpx.png

This is close to the average date for the season's first frost in the metro. The average date for the frost 32 degree reading for MSP Airport is October 7th. Here are some average frost dates for other metro locations.

1 2 Avg frost.PNG
Frost dates courtesy Minnesota Climate Working Group.

It appears temps will likely rebound again next week after our brief early October chill this weekend.

Flood caught on video:

This is a time lapse video of Chaska's Athletic park flooding by the Minnesota River. This video shows September 27, 2010 from 6am - 7:30pm. Pretty amazing stuff! No baseball today...

PH


September's finest

Posted at 5:00 PM on September 29, 2010 by Paul Huttner
Filed under: Fall, Fall color

Wednesday had to be the best day of the fall for many Minnesotans...so far.

1 2 ridgewood.jpg
Fall color popping along Ridgewood Road in Minnetonka.
Photos by Paul Huttner. (Click for bigger images)

Plenty of sunshine graced (most of) Minnesota's skies today, with temperatures shooting up into the 70s in many areas. The exception is Minnesota's Arrowhead and North Shore, where clouds and spotty showers roll through with a cold front.

1 2 mn temps.jpg

Anatomy of a cold front:

Check out this high resolution MODIS terra satellite image from the University of Wisconsin Wednesday.

You can clearly see the tail of clouds riding along with a cold front as it approaches the Twin Cities in mid-afternoon. If you look closely, you can notice the Minnesota River looks quite swollen southwest of the Twin Cities. This is the flood in action as viewed from space.

1 2 cf modis.PNG

Family of fronts:

Wednesday's cool front is the first in a family of fronts that will sweep colder air into Minnesota by this weekend.

1 2 nws.png

Many locations, including the Twin Cities may see our first frost of the fall by Sunday morning.

And now for your Weather Lab gratuitous sunset shot of the week.

1 2 sunset sep 27.jpg
Classic sunset over Gale Island on Lake Minnetonka Monday.

PH


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