Sunday, April 10, 2011

The Dry Line, which rarely passes through KC each year (maybe a couple of times tops) is in the process of working into the metro area now as I type this. The dewpoints, behind the dryline, go down. So far we've seen dewpoint drops of 10+ degrees in Topeka as the drier air has replaced the 60 or so dewpoint values with 50 dewpoint values. It's even drier out to the west of here where the dewpoint in Mnahattan has dropped to 41 as of the Noon hour. This passing dryline will eliminate the threat of rainfall/storms for the local area. However as that transition moves farther to the E/SE it will stall and may provide the necessary boundary for sparking storms later this afternoon....however that area. to the E/SE of KC remains rather capped as of this writing, so it may take awhile for something to go up. Here is the latest from the SPC concerning the potential of severe storms...again notice that it's farther away from KC...


Basically the area from Butler to Nevada To Marshall to Kirksville to the Lakes area still needs to be monitored.

The winds have also been blowing pretty good with gusts so far to over 35 MPH. These winds may pick up a bit more during the afternoon.

A cold front will be the next airmass change around here, that's due to move into the area this evening. Temperatures this AM in the western plains were well down into the 30s, so the air is seasonably cool and that is what I'm expecting tomorrow, a seasonably cool/nice afternoon. Here is the latest surface map showing several airmasses, note the dewpoints in green and the temperatures in RED...also notice the wind barbs...


Click on that image to make it larger...

Last night was a rough night for the folks up towards IA...there were 27 reports of tornados in the Hawkeye state and while several are reports of the same tornado, there certainly were some nasty cells up there. Here are the storm reports, Mapleton, IA was the community that was hardest hit.


Click on that too make it larger...the RED dots represent the reports of a tornado. The storms were impressive. Reports indicate that more than 60% of the town of Mapleton was damaged or destroyed...here is some video of the tornado and the aftermath.


Also one of our numerous chasers that help out FOX 4 was on the storm as well. Here is Ben Prussia's video from the tornado...thanks Ben. I saw you on Spotternetwork up there...was wondering if you were able to capture that storm!


As you know sometimes chasers are a bit over the top with these things, however I did notice last night that more than a few chasers, after watching the tornado and seeing what it did to a small community, immediately went from chaser mode to rescue mode as a bunch stopped and helped folks out of the rubble. Good job!

It looks like the Tornado risk today, at least the bulk of it, will be shifting up towards Wisconsin and NW Illinois.

Joe

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