Wednesday, April 25, 2012

South Wisconsin May Get Crushed with Late Season Snow

Sorry everyone, the automatic publisher didn't work! Sorry!
The latest GFS is showing over a foot of snow for southern Wisconsin and far eastern Iowa. This comes as a fast moving storm system appears to absorb additional moisture to provoke additional snow amounts.

Before I go any further: This image may be produced with 10:1 ratios, which would be higher than what is being shown here. The keyword is 'MAY', because a comparison to other 10:1 ratio images yielded different results. That said, I am treating this image as a 10:1 ratio image in order to not get everyone's hopes up too high.

Anyhow, I would expect a realistic scenario to be 1-4 inches in southern Wisconsin, with another 2-4 in Pennsylvania. I really don't know with the difference in images using the exact same data, which should yield the same results.

Possible Weekend Snow Update at 4:00 PM CDT

Southwestern Low May Ignite Severe Weather in Plains

The ECMWF is projecting that a large low pressure system will swing into the Southwest and likely ignite some showers and storms if it should progress eastward into the Plains.
There isn't too much I can say about this storm system, but the jet stream appears to be latched onto the system, which would increase tornadic shearing and the overall intensity of the system.