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January 27-28 Wintry System


wisconsinwx

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Both the 6z NAM and GFS are indicating about 3-4" of snow here before we switch to ZR. BUFKIT profile showing some decent uvvs and some elevated instability. Assuming that verifies TSSN is not out of the question. Actually, the whole ul setup kind of reminds me of February 8, 2001. That storm, with the help of some CSI banding, dropped up to a foot from northern lower across Toronto to near Syracuse, NY. I am NOT calling for amounts as generous as with that storm but from what I remember the models at the time were not excessive with the QPF output leading up to the storm.

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12z NAM much more aggressive with the mid level warming here in comparison to previous runs. Would probably be a quicker transition to PL or ZR. Per sounding, most of the warming is at 850 so the trusty blue line in this case is actually a good snow/mix delineater.  

 

It looks like 2-3" of snow on the NAM followed by freezing rain and then rain.

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Not so fast, you're not escaping the freezing rain, though living right along the lake will help limit the ice accretion to be sure.

I noticed some ice buildup near the shore recently per satellite. This is probably the time of year where lake influence is at a minimum...the highly urban setting and the warmer temps that often come with that could be a bigger factor in this case.

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DTX got rid of ice storm watches and warnings a few years ago?

http://www.crh.noaa.gov/dtx/wwa_definitions/wsw.php

 

 

  • Ice Storm Warning A significant, and possibly damaging, accumulation of ice. Normally a coating of at least 1/4-inch, but may be up to 1/2-inch if winds are less than 15 mph.

  • Freezing Rain or Freezing Drizzle Advisory Situations that cause significant inconveniences, and do not meet warning criteria. If caution is not used, this could lead to life-threatening situations. Ice accumulation causes driving or walking problems, but no damage to trees or power lines
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