Friday, May 18, 2012

A Great Front

The weather drought is over and interesting weather is moving into northern Utah this morning.  Most impressive was the push of a shallow cold front into the Salt Lake Valley this morning.  The time lapse imagery below faces west from Olympus Cove.  Check out the persistent orographic clouds that formed as cold air spilled over the Oquirrh Mountains and the strong shear near their tops with northwesterly flow at low levels and southerly to southwesterly flow aloft.  Such shear is very common immediately behind a surface cold front.

IR satellite imagery shows cold-topped clouds filling in the region immediately behind the surface front.

And the radar shows a broad band of precipitation beneath these clouds with some embedded thunderstorms.

The next few hours look to be quite interesting.  Batten down the hatches and enjoy the ride.

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