Warm week drops snowpack

Posted 4/6/21

The snow water equivalent update for this week shows the statewide snowpack at 88% of median, down 10 percentage points from a week ago.

One year ago the state median was 113%, up from the 103% …

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Warm week drops snowpack

Posted

The snow water equivalent update for this week shows the statewide snowpack at 88% of median, down 10 percentage points from a week ago.

One year ago the state median was 113%, up from the 103% median at the same time in 2019.

The Powder watershed has the highest snow water equivalent (SWE) in the state, at 110% — down from 120% last week and 114% a year ago. 

The Lower North Platte is at 108% of median — down from 121% a week ago and lower than the 126% registered one year ago.

The Belle Fourche and Cheyenne basins are vying for the state low at 42% and 44% of median, respectively. Belle Fourche was at 74% a week ago, as was the Cheyenne. That rate is signifigantly lower than the 101% logged a year ago for each drainage. This is the third consecutive week that Belle Fourche has been the state low. 

The Yellowstone drainage is at 100% of median, down 4% from the prior week and also down from 119% of median from the same date one year ago.

The Shoshone River basin is at 92%, down from 98% last week and also down from 114% a year ago. The Bighorn River basin is at 92%, down from 98% last week, and down from 114% last year.

No basins showed an increase from last week.

The Wind River is at 81% (down from 92% last week), the Tongue is at 98% (down from 109%); the Sweetwater is at 70% (down from 77 %); The Upper North Platte is at 90%, down from 98% last week; the Laramie is at 103%, but down from 115% a week ago; the Little Snake is at 89% (down from 101%);  the Upper Green is at 79%, down from 86% last week; the Lower Green is at 86%, down from 99% a week ago; the Upper Bear is at 71% but down from 83% a week ago; and the South Platte is at 82% (up from 78%). 

All mountain areas across northern and central Wyoming are expected to see light snow amounts during the upcoming week. 

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