Dangerous Fire Conditions in the Southern High Plains; Severe Weather from the Great Lakes into Central/Southern Plains; Late-Season Mountain Snow

Dry and windy conditions will produce dangerous fire weather conditions across the southern High Plains into the Southwest. Severe storms, including very large hail, strong tornadoes, and winds, are expected from the Great Lakes into the central/southern Plains. Heavy late-season snow and cold temperatures are expected in the northern to central Rockies. Heat is spreading across the eastern U.S.. Read More >

…Wyoming January 2018 precipitation was 95 to 105 percent of average...

...Current water year precipitation is averaging 90 to 100 percent of normal across Wyoming……Mountain snowpack across Wyoming is 105 to 115 percent of median...

…Near normal (95 to 105 percent) snowmelt streamflow volumes are expected across Wyoming during the upcoming snowmelt runoff season…

…Wyoming reservoir storages remain at 115 to 125 percent of average for February…

January 2018 precipitation totals across Wyoming were 90 to 100 percent of average. Precipitation numbers varied between 140 percent of normal over the Crow/Lodgepole Creek Drainage (extreme southeast Wyoming) to near 81 percent of average over the Wind River Watershed (west central Wyoming). Current water year (October 2017 - January 2018) precipitation across Wyoming is 90 to 100 percent of average.

Mountain snowpack across Wyoming remained at 105 to 115 percent of median by early February. Snowpack "water" numbers and/or SWEs were the highest across basins in northwest to north central Wyoming—varying between 120 to 150 percent of median. SWEs across basins in south central to southeastern Wyoming were 70 to 100 percent of median.

Near normal (95 to 105 percent) snowmelt streamflow volumes are expected across Wyoming during the upcoming snowmelt runoff season. Above average (>120 percent) streamflow volumes are still forecasted across portions of the Wind, Bighorn, Shoshone, and Upper Yellowstone Watersheds. The Tongue, Lower Green, Upper North Platte, and Little Snake Basins are still expected to have below to near normal streamflow volumes during the upcoming snowmelt runoff season.

Reservoirs storages across Wyoming remained above average at 115 to 125 percent for February.

The latest Wyoming water supply outlook graphic:

RIW RSS Feed

Dangerous Fire Conditions in the Southern High Plains; Severe Weather from the Great Lakes into Central/Southern Plains; Late-Season Mountain Snow

Wyoming Water Supply Outlook---February 9, 2018

…Wyoming January 2018 precipitation was 95 to 105 percent of average...