Wednesday, November 16, 2011

Weekend storm will bring rain/thunder here, but accumulating snow further north

Quiet, but cold!  That's what you can expect around here for the next couple of days.  As high pressure slides south of the Great Lakes Thursday night southerly winds will pull a warmer air mass into the area this weekend.  This will also be ahead of a developing area of low pressure that will move out of the Rockies and track northwest of the immediate area.  For most of Saturday we'll remain in the warm sector of the system as southwest winds at the surface and above warm temperatures back into the upper 50s and possibly low 60s.  Further north across the upper Midwest snow possibly accumulating 4"-8" will be found.

One thing we'll watch heading into this weekend will be the timing of a cold front that is forecast to move through either during the evening hours Saturday or into the overnight.  If the front were to move through earlier in the day we would stand a better chance of having a few storms accompany the showers.  A later frontal passage would yield less instability for any storm development.  It's a couple days away but it's something we'll continue to monitor in the First Warn Weather Center.  After all, next Tuesday will be the one year anniversary of the Caledonia tornado.

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