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July 7th Mountain Wx Forecast
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The weekend weather forecast for the high country of Rocky Mountain National Park, Colorado. Researched and written by professional meteorologist and avid mountaineer, Dan "the weather man" Gottas.

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Thursday, July 7th, 2011

Rocky Mountain National Park Weather Forecast

The summer monsoon weather pattern arrived to the southern and central Rockies over the past week.

 

Week in Review

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This year’s hyper-active early summer storm track rapidly transitioned to a mature monsoon across the intermountain west, but not without a bang.

One last westerly wave tracked across the Park on 6/29-30, focusing strong lift and moisture in the form of intense, fast-moving thunderstorms along and ahead of its frontal zone.  A blast of northwesterly winds exceeding 50 mph above treeline followed the frontal passage, aided by the mountain-wave response in the stable, subsiding flow in the lee of the Divide.

In the days that immediately followed, a large anticyclone developed across the inter-mountain west centered near the Four Corners region.  This pattern typically evolves every July, as the region’s geographically broad and elevated heat source continuously cooks a deep layer of the atmosphere.

The scale of the anticyclone allows sub-tropical and tropical streams of moisture and energy to be transported from the southern latitudes of Mexico to the central latitudes of the US Rockies through August and early September.



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A graphed summary of the last week's weather weather patterns across RMNP and close-by mountain regions.   
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Mike Arnold checking-out the view of Sundance from the flanks of Mount Chapin above the Fall River Road in RMNP. 

The Upcoming Week


The monsoon circulation and its associated unstable convective weather will continue to affect RMNP over the next week.

With column-integrated moisture levels forecast in the 1-2 cm range over the higher terrain over the next 5 days, the threat of rain-soaking, energetic thunderstorm activity will increase. 

As usual, this activity will be greatest during the afternoon and evening hours, when the destabilizing effect of daytime heating is maximized.

A potential reprieve from the upcoming thunderstorm cycle may be in the offering by the following weekend (7/16-17).

colorado weather forecast rmnp
The weather forecast for the upcoming weekend which looks to be best on Sunday for going big in the alpine world.

Detailed 7-Day Forecast

NWS Forecast for the 12,000 foot level near Longs Peak

The link above will take you to the National Weather Service forecast for the 12,000 foot level near Longs Peak. These forecasts are derived from computer-generated numerical forecasts, and are updated shortly after 3:30 am, 9:30 am, 3:30 pm, and 9:30 pm local time. In the lower right-hand corner of the page, one can view forecasts for other locations in the Park by clicking on the desired location in the terrain map.

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Do-It-Yourself Weather Forecast Links
Weather Observations and Forecasts
The link above provides a list of web links to various sites containing a variety of meteorological data and information. Collectively, these resources can be used to monitor and study current weather conditions, as well short-term, medium-range, and climate forecasts



 

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