Friday, April 5, 2013

A Blustery Frontal Passage with Rain to Come

Post-frontal clouds over the Salt Lake Valley @ 7:30 AM
A blustery cold front pushed through the Salt Lake Valley early this morning.  "Cold" in this case is a relative term as the post-frontal environment is still fairly mild.

The leading edge of the front was relatively dry.  As can be seen in the 7:00 AM radar image below, northwesterly flow at the surface is running well ahead of the main precipitation band accompanying the front.

There are some fairly high returns encircling the KMTX radar site on Promontory Point.  Some of that reflects what is known as the radar bright band, an area of locally high radar reflectivity where the radar beam cuts through the melting layer where snow is transitioning to rain.  Even still, there are clearly some pockets of heavier showers and the possibility of a bit of thunder as the frontal band pushes through the Salt Lake Valley.  That would be a nice way to finish the work week.

For those who haven't given up on the ski season, I suspect we'll get a few inches of high density cream   out of this in the upper elevations of the Wasatch.

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