Category Archives: Weather

Thunderstorm!

window well full of waterI was mountain biking in the Upper Arb this morning when I noticed the approaching storm clouds had a green tint.

I got caught in the fast-approaching deluge (1.75 inches of rain about 45 minutes) but got home in time to notice that one of our window wells was about to overflow into my basement world headquarters. Bucket time.  Whew.

stalled car on flooded street downed tree and power line downed tree and power line

Trinity Lutheran recycling cans Rice County Sheriff officers downed tree at David Allen's house
After the thunderstorm passed, I roamed around town on my bike to get a few photos of its aftermath (with email hints on where to go from my buddy Curt Benson who was monitoring the police scanner): Northfield Police helping motorists with stalled cars; trees and power lines down; Trinity Lutheran Church recycled cans strewn over a few acres; Rice County Sheriff officers closing off streets; and artist David Allen with some new landscaping perfectly framing the business sign in his yard.

More storm photos:

A strange cloud formation ahead of this morning’s squall line

thunderstorm radar may 9 2011 squall line approaching Northfield 
As I settled in for coffee at 6 am this morning at the GBM, I checked the radar and noticed a line of severe thunderstorms approaching. I glanced out my corner office window and saw a white streak of clouds, very high up, many miles long, well ahead of the wind, rain, and pea-sized hail that eventually came after the squall line passed.

squall line approaching Northfield squall line approaching Northfield squall line approaching Northfield
Anyone know what this cloud formation is called? Is it a "line echo wave pattern" as described in the Wikipedia  section on the severe weather indicator of a squall line?

The weather sucks. Want the details?

Dundas Weather Paul Jesh
Dundas resident and All Flex Flexible Circuits engineer Paul Jesh has a local weather website up called Dundas MN Weather.

It’s considerably friendlier and more visual than the Carleton College Weather database, though nothing beats that for local historical weather info.

Thanks to Clark Webster for the tip.

Dr. Hvisty’s flood markers

Froggy Bottoms David Hvistendahl, Froggy Bottoms high water mark 4th St. bridge, Northfield
David Hvistendahl showed me the high water mark from last September inside Froggy Bottoms this morning when the pub was destroyed.  We’ve got a long way to go to beat that.  David said that hydrostatic pressure starts forcing water up from the floor when the Cannon River tops the orange ‘danger’ sign on the 4th St. bridge. We’re getting close to that.

Like last fall, I’m continuing to add photos to the same photo album, in this case Spring flooding 2011.