Weather - Forecast

Aug 22, 2014 8:10 AM by Stephen Bowers

Friday Weather: Rain Increasing This Afternoon

We've been talking about it for the better part of the week, and our rainy day is here. The concern is that heavy rain may set up. Prolonged periods of heavy rain could mean dangerous flash flooding, and we will be monitoring that risk closely this afternoon and evening.

Overnight showers were squelched by the time many of us woke this morning. Moisture is more abundant today than it was yesterday, especially over western Colorado. That moisture will slide eastward while moisture from the Plains pushes westward toward the mountains. The wind will shift behind a cold front and blow from the east to northeast. The upslope component of that east-to-west-blowing wind will help to increase the coverage of showers and thunderstorms along and west of the I-25 corridor. The wind flow throughout the depth of the atmosphere will also be changing and blowing some cooler air in our direction from Idaho and western Montana. The temperature trend through next week is cooler, though a warmer Saturday will be stuck in the middle.

Today starts with plentiful cloud cover. Temperatures will warm this morning, but the warming will be much slower than in previous days. We're holding back in the upper 60's and lower 70's beneath the clouds around 10 AM. By noon some lone showers are beginning to form, though the most widespread rain will still be near the Continental Divide. Temperatures will still be in the 70's for most of us with 60's in high elevations and 80's in the far Southeastern Plains. 2 PM shows rain becoming more widespread in the high elevations west of I-25 with just spotty showers along the interstate. 2 PM to 5 PM becomes quite active with widespread heavy rain and occasionally thunderstorms. Activity in the Plains will be less widespread but still more abundant than yesterday. Highs will be in the 70's and 80's at best this afternoon.

We get a break from the rain tomorrow. Temperatures will increase quickly only to cool again Sunday through Wednesday. Only spotty showers will be around on Saturday and Sunday, though Sunday looks to bring a few more showers than Saturday. Monday will bring more showers still before another cold front on Tuesday brings another day of more widespread rain and thunderstorms. Drying and slow warming will begin on Wednesday.



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