Thursday, August 9, 2018
A ridge of high pressure currently over the western U.S. will bring hot days and cool nights to the Steamboat Springs area through this weekend before shower chances increase around Tuesday ahead of a large, but weakening, eastward moving Gulf of Alaska storm.
The storm is forecast to make landfall in the Pacific Northwest early this weekend, and it will flatten and push the ridge of high pressure eastward as the storm moves along the southern Canadian border. But this is a battle of the air masses that summer will win as the jet stream will stay north of our area for the foreseeable future.
Meteorologically interesting, but unlikely to have much effect on our weather except for possibly some slight cooling on Monday and Tuesday, some energy peeling away from southward moving air that was originally spinning around a large storm in Hudson Bay will form an eddy that will meander around the Texas panhandle and southeastern Colorado through part of next week. Normally, we would expect to see some monsoonal moisture drawn northward along the west side of the flattened ridge of high pressure to our east, but instead light northerly flow on the west side of the eddy will keep moisture and showers at bay through Monday when the forecast finally has the eddy moving eastward.
At that time, southerly flow around the ridge of high pressure to our east will penetrate into northern Colorado, bringing our best chance of showers on Tuesday and Wednesday. The flattened ridge of high pressure is forecast to move westward through the work week and then rebuild over the West Coast around the following weekend. We should see a much reduced chance of showers for Thursday and Friday as remaining moisture under the ridge is heated by the strong summertime sun.
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