Wyoming Water Supply Outlook

Wyoming Water Supply Outlook

The first outlook of the Winter has been issued based on snowpack through January. Since then in Western Wyoming the first half of February has seen an additional  impressive increase in snowpacks.  Wyoming appears to be headed for a very favorable runoff this spring.


Wyoming Water Supply Outlook—February 12, 2014

 …Wyoming January precipitation was nearly 115 percent of average…
…Current water year precipitation is averaging nearly 130 percent of normal across Wyoming…
…Mountain snowpack across Wyoming is 120 to 135 percent of average… 
Near normal snowmelt streamflow volumes are expected this runoff season across major basins in Wyoming…
…Wyoming reservoir storages remain at 85 to 90 percent of average for January…
January precipitation totals Wyoming were nearly 115 percent of average. Precipitation numbers varied between 188 percent of normal over the Crow/Lodgepole Creek Drainages (Southeast Wyoming) to near 77 percent of normal over the Upper Bear Basin (Southwest Wyoming).  Current water year (October 2013 – January 2014) precipitation across Wyoming is nearly 130percent of average.
Mountain snowpack across Wyoming was 115 to 120 percent of normal by early February.  Snowpack “water” numbers and/or SWEs continued to be the highest across northeastern Wyoming—varying between 125 to 150 percent of average.  SWEs were the lowest across southwestern Wyoming—varying from 85 to 100percent of normal.
Near normal (90 to 110 percent) snowmelt streamflow volumes are expected across almost all major basins across Wyoming.  Above average streamflow volumes continue to be expected across the Powder River Watershed.  Belowaverage streamflow volumes during the upcoming snowmelt season continue to be forecasted for the Lower Green, Sweetwater, and lower portions of the Wind River Basin.
Reservoirs storages across Wyoming remain slightly below average for February. 

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