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Category: Forecast (Page 24 of 144)
On this first full week of September, an overall dry pattern will exist across the Front Range with plenty of sunshine to go around. The best chance of storms will be during this Labor Day with a strong cold front moving east, though we suspect almost all of the action will be well north of the Denver Metro area. Tuesday will see temperatures drop pleasantly into the 70s behind a cold front, but it will be a short reprieve as above normal temperatures regain control in the days to follow.
August 2023 ended up warmer and wetter than normal in Boulder — an uncommon pair of outcomes indeed. The summer monsoon failed to produce consistent precipitation across the state throughout the whole month (woefully dry in the middle), but most areas made out alright with drought still thankfully absent from eastern Colorado. The month had 14 90-degree days bringing the total count to 30 days year-to-date. Elsewhere, a DVD-sized hailstone that fell in far eastern Colorado was confirmed to be a new state record. Here’s a quick and colorful graphical recap of our weather during August and how it relates to climatology.
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A very typical, though somewhat boring late-summer week will unfold across the Front Range as the monsoon wraps up and we await the seasonal arrival of the polar jet stream. Our best chance of rain this week comes immediately on Monday as afternoon thunderstorms rock the area. Drier and hot weather will return in the days to follow, however. Late-season monsoon moisture will reach the area Friday into the upcoming weekend, but the heat will be going nowhere.
A stark change in our weather is set to take hold for Friday as we move from seemingly never-ending summer heat to a much cooler and rainy setup that will bring with it a significant flood risk to the Front Range. The remnants of Tropical Storm Harold and a strong Canadian cold front will align almost perfectly over the area late Friday into Saturday with more than 1″ of rainfall possible and even more locally. In this update we discuss the latest timing of everything, the temperature nose dive, rainfall amounts, and which areas are at greatest risk to see flooding.
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The week commences on the hot and dry side as a very strong and anomalous ridge over the central United States keeps much of Colorado locked into a scorching heatwave. Remnants from a tropical cyclone over the western Gulf of Mexico may influence our region later in the week as it interacts with a southward moving cold front. This should favor cooler temperatures and increasing chances for thunderstorms by the latter part of the week into the weekend. Read on for all the details of yet another semi-active weather week for us.
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