@ColoradoClimate: Weekly #Climate, #Water and #Drought Assessment of the Intermountain West

Click here to read the current assessment. Click here to go to the NIDIS website hosted by the Colorado Climate Center. Here’s the summary:

Summary: February 11, 2020

Decent precipitation fell through much of the northern and central Rockies of Colorado and along the Front Range, with this area seeing at least 0.50″ of precipitation over the last week. This is a very welcome sight for the Front Range of Colorado after a very dry January. Other areas seeing a nice amount of precipitation in the Intermountain West was a line of 0.50″ plus precipitation amounts from northwest Wyoming into northern and central Utah along the Wasatch range.

Not showing up on our precipitation maps that end Monday morning is the additional precipitation that fell Monday along Colorado’s Front Range, additional amounts up to a quarter inch, higher amounts farther south. More impressive are the precipitation numbers coming out of the Phoenix area, with amounts up to 1.25″. New Mexico also saw beneficial precipitation from precipitation on Monday, with Albuquerque receiving a few inches of snow, translating to around a half inch of precipitation. Other half inch amounts popped up in southern New Mexico as well.

Standardized precipitation index values (SPIs) are a mixed bag across the region and across time scales. For the Four Corners area, very dry SPIs still show up on the 6-month timescale. In the short-term 30-day timescale, dry SPIs dominated much of Utah. Colorado is wet in the northern and central mountains and the Front Range, near normal to dry for the rest of the state.

Snowpack across the region is looking good, with the entire IMW region seeing above normal snowpack. With the systems moving through, the region saw a nice cool down with below normal temperatures over much of the region. This has helped with the month-to-date temperatures cool to near normal. This will help with the evaporative demand, even while some areas remain dry.

The next 7-days starting Tuesday is showing a shot of precipitation in the mountains of Colorado, Utah and Wyoming and a nice shot of precipitation for much of New Mexico. The 2-week outlook is hinting at chances for below normal precipitation for the western half of the IMW region and chances of above normal for the eastern half, with temperatures leaning to the cool side of normal for the region.

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