Monday, July 28, 2014
After a typical summer day today, the remnants of a sub-tropical wave currently to our west and the monsoonal moisture plume already in place will conspire to make heavy rain likely over most of Colorado tomorrow. Since the wave is moving slowly and is composed of several pieces of energy, the threat of heavy rain will also be present for Wednesday.
An interesting development is that this sub-tropical wave looks to drag some cool air over our region on Wednesday as it interacts with the STILL present Hudson Bay vortex. This frontal boundary is forecast to persist for part of the day in our vicinity and may lead to more organized storms with heavy rain and possible hail on Wednesday. Some dry air behind the front should quickly end the storms after the front finally moves through the area, currently forecast for later that day.
Thursday should be a nice day, but another weaker wave is forecast for Friday which will likely increase the threat of heavy rain again. There may be some interaction between this wave and the currently weakening tropical cyclone Herman off the southern coast of Baja, so the details for Friday are uncertain. Again, this wave is forecast to be followed by some drier air which should make for a nice weekend if it occurs, though the monsoon looks to be re-established early in the following workweek.
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