Jul 19, 2021
Colorado Weather Forecast | July 20–25, 2021
Monsoonal moisture looks to be consistent feature into next week.
The wildflowers are popping, and bees are buzzing, and it looks like much of the southwest will receive an ample amount of moisture over the next week. Not bad!
Both the American and Euro ensembles show above average precipitation over the next 10 days:
This would translate to some very nice totals across western Colorado by the end of the weekend:
Strong ridging is present over much of the western United States, which is advecting some very warm air into Idaho and Montana, which could see record high temperatures.
This will keep us drier today and Tuesday before it flattens out by Wednesday…
…which lets a good pulse of moist monsoonal flow enter the region beneath it. This pattern looks to persist through the weekend, showing up fairly strongly on ensembles.
This sort of pattern has a more pronounced impact on western and southern Colorado, with the best moisture generally locked up west of the Divide.
For instance, here’s a precipitation forecast for Red Mountain Pass (San Juan mountains). Deterministic precipitation accumulation is about 7" over the next 10 days, which is impressive (but seems unlikely). Median precipitation as we get into mid-week and the weekend is 0.25–0.3" per day, which is decent.
For Berthoud Pass (Front Range), the blend only has 4.5" of accumulated precipitation over 10 days, and median precipitation is sitting at 0.1–0.15" each day from the mid-week to the weekend.
Hard to complain about that, as further west is what really needs the moisture.
Finally, it looks like we’ll still remain a little hazy from wildfire smoke over the next couple days at least:
Forecast by
Thomas Horner (Twitter: @thomaschorner)
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