Look for a relatively quiet last week of summer across the state with warm temperatures and dry weather being the main story. However, the forecast turns much different for the upcoming weekend. We’re also watching the Tropics for a few hurricanes that may impact the Eastern US. Read on for details.
Category: Forecast (Page 133 of 166)
3rd Annual BoulderCAST First Snow Contest
*This contest is now closed to entries*
Are you eager for the first snow of the season? Have you already waxed your skis and purchased your Epic Pass? Our first big snow could be right around the corner! We provide a brief overview of Boulder’s first snowfall climatology and then pose a question…“When will Boulder’s first snow occur this year?” Submit your guess for not only a chance to win recognition among local weather enthusiasts, but prizes too. Those who get closest to the date of our first snow win. Read on for all the details.
Today will bring the best chance of precipitation for the week to the Front Range as a small but potent wave treks across western Colorado.
The 500 mb vorticity map below shows a autumn-like trough digging into the Pacific Northwest (big “L”), and also the small wave moving through Utah and western Colorado tonight (little “L”). Moisture in eastern Colorado, especially at the lower levels, will be fairly low today and tonight. The bulk of the precipitation will remain in western Colorado and Wyoming. However, there will be a decent chance of storms today across the Metro area…maybe 20% between 3PM and midnight this evening as the disturbance approaches. Highs will be cooler today in the low to middle 80’s with mostly cloudy skies developing by afternoon.
This big trough across the Northwest is actually cold enough for snow in the higher elevations of western Wyoming and Montana! Those wondering when snowfall may return to our Mountains should keep an eye on the middle of next week as ensembles are coming into agreement for an even colder and deeper trough developing across the West…
LEFT: 500 mb height anomaly for the middle of next week from the ECMWF. RIGHT: GFS ensemble 850 mb temperature anomaly
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A warm and fairly dry week is expected across the Front Range. However, we’re once again watching the tropics this weekend for another East Coast landfall and one storm which could impact Colorado. Read on for details.
The winds are shifting and the smoke will soon be departing our region. Read on for details.
As the nation braces for impact of another major tropical cyclone, we update you on the status of Hurricane Irma. Where is she headed and when will she arrive? Read on to find out.
DISCLAIMER: This update was created Wednesday, September 6, 2017. Any life-sustaining decisions regarding Irma should be made on your own accord following the most up to date guidance from the local emergency authorities.
The week ahead starts off feeling like autumn thanks to yesterday’s cold frontal passage. We are rather quiet for the most part with only a slight chance of storms late in the week as temperatures moderate back into the 80’s. More details can be found within, including when we expect the wildfire smoke to exit the region.
We also provide thoughts on Category 5 Hurricane Irma which could be making landfall in Florida this weekend.
It’s been nearly two weeks in Boulder since our last measurable rainfall. Labor Day weekend will continue this trend with generally dry and at times, hot conditions prevailing across the state of Colorado. We provide our forecast of the entire holiday weekend for the Metro area and the Mountains.
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