Thursday, March 16, 2017

Timing is Everything

We have another shot at some wintry precip tomorrow morning, and with this small round... timing is everything. By sunrise tomorrow we'll see a freezing rain and snow mix moving in:

We'll still be below freezing for a few hours after sunrise, so whatever falls could cause a mess. Here's where the timing comes in:

If precip starts earlier, it'll be in the overnight. We should have enough cold air still aloft to allow precip to fall as all snow. That would effect rush hour more negatively, and bring more school delays and closings. 

If it falls right as the sun's coming up, that warmer air is rushing in over our cold lower levels, meaning some light freezing rain. It's also starting right at rush hour, which brings its own set of issues.

If this is just a couple hours late, we're in March. That gives the March sun a couple hours head start to warm the entire column, meaning we're probably just looking at a rain event.

If I were a betting man, I'd lean towards an earlier solution. These clipper-like systems always seem to run a little faster than models suggest, which means be prepared for a little bit of a dicey commute tomorrow.

1 comment:

  1. Whatever winter chaos you can conjure up - no matter how late in the season we might be - i'll take it! I've yet to do donut in anger this winter... : )

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