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

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

Summary: December 23, 2019

The last week over the Intermountain West has been a fairly quiet one, with almost no precipitation falling throughout the region. Temperatures across the Upper Colorado River Basin were near to slightly cooler than average. Month-to-date, the higher elevations of the IMW have received between 1 and 3 inches of precipitation, with the lower elevations mostly getting less than half an inch. This is a pretty normal pattern for this time of year, although most areas are a bit drier than average for the month. Despite that, 30 and 60 day SPIs look pretty good for the entire region, with some drier 60-day SPIs creeping into northwest Wyoming.

SNOTEL snowpack for the Intermountain West is off to a good start, with basin-wide averages ranging from near average in western WY to almost 200% of average in southern Utah. Individual SNOTEL sites in western WY are struggling a bit, but Utah and Colorado snowpack are in good condition.

Following this quiet week, there is good news on the horizon, with decent precipitation amounts forecasted over the next 7 days, especially focused in some drier spots. The southern half of Arizona is forecasted to get between 1 and 3 inches over the next week. Eastern New Mexico and into southeast CO are also expected to get over 1 inch of moisture. Most of the higher elevations should be able to get in on some of the activity as well. Unfortunately, Wyoming looks to miss out on the bigger accumulations.

Warm temperatures will dominate the region through Christmas, with cooler than average temperatures coming after the holiday. Climate Prediction Center shows a higher possibility of cooler than average temperatures continuing into the new year.

Statewide basin-filled snowpack map December 26, 2019 via the NRCS.

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