Friday, April 1, 2011

Weather Rap for the First of April.....no foolin'

A warm Ridge of High pressure that has been building inland over the western U.S. the last 24-hours will get flattened out by a Trof of Low pressure that will be moving across the Northwestern U.S. the next 24-hours.

Very HOT in the Southwestern U.S. on the last day of March 2011......75 in Moab, 79 in Zion, 92 in L.A., 101 in Palm Springs, and hottest was 103 in Death Valley.

Still some clouds coming over the top of that Ridge in a WNW flow over us today, which may cause a few showers over Yellowstone Park and the Teton Mountains, otherwise, just some clouds moving by from time to time today. And warm spring-like temps.

That weather system coming into the Pacific Northwest will bring Jackson Hole some rain on Saturday, by afternoon. A strong cold front will then move through sometime Saturday evening and that will change the rain over to snow at all elevations. Expect dramatically cooler temps by Sunday.

That Low pressure center moves by to the north of us and out into the Dakotas on Sunday. Some moisture remains behind this system in a North to NW flow Sunday & Monday for some light snow.

It now looks like a somewhat moist Westerly flow will be over us Tuesday & Wednesday, with warming temperatures bringing a chance of some valley rain showers and some snow in the mountains.


Text provided by Meteorologist Jim Woodmencey

Graphics by IPS MeteoStar LEADS On-Line

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