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Wyoming Water Supply Synopsis:

JANUARY PRECIPITATION: Wyoming January precipitation was nearly 115 percent of average.

WATER YEAR PRECIPITATION: Current water year precipitation is averaging nearly 130 percent of normal across Wyoming. 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 130 percent of average.

MOUNTAIN SNOWPACK: Mountain snowpack across Wyoming is 120 to 135 percent 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 100 percent of normal.

SNOWMELT STREAMFLOW: Near normal snowmelt streamflow volumes are expected this runoff season across major basins in Wyoming. 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. Below average streamflow volumes during the upcoming snowmelt season continue to be forecasted for the Lower Green, Sweetwater, and lower portions of the Wind River Basin.

RESERVOIR STORAGE: Wyoming reservoir storages remain at 85 to 90 percent of average for January.

Other hydrological information for Wyoming:

NOAA hydrology website:
http://www.crh.noaa.gov/riw/?n=snowpack

Monthly Wyoming Hydrologic Summary and Graphics:
(updated monthly around the 15th of every month)
http://www.crh.noaa.gov/images/riw/hydro/hydro_report.pdf

Wyoming Drought Information Page:
(updated at least once a month)
http://www.crh.noaa.gov/riw/?n=drought

Wyoming Graphical Water Supply Outlook:
(updated by the 15th of every month—January-June)
http://www.crh.noaa.gov/images/riw/hydro/watersupply.png

Wyoming Average Precipitation by Basin:
(updated monthly)
http://www.crh.noaa.gov/images/riw/hydro/wyomingprecip.png

Wyoming Spring Snowmelt Runoff Flood Potential Graphic:
(updated by the 25th of the month---January-May)
http://www.crh.noaa.gov/images/riw/hydro/floodoutlook.png

Current and Forecast Wyoming Streamflows and/or River Stages:
http://water.weather.gov/ahps2/index.php?wfo=riw
http://waterdata.usgs.gov/wy/nwis/rt

For more information contact:
Jim Fahey
Wyoming NOAA hydrologist
work 307-857-3898 ext 493
cell 307-709-8778