Hydrologic Outlook issued February 22 at 5:15AM MST by NWS Boise ID
ESFBOI Moderate to heavy rain and low elevation snowmelt Sunday and Monday will lead to rises on rivers, creeks, and streams across portions of southeast Oregon and southwest Idaho (particularly the Weiser River Basin). Saturated or frozen soils in some areas will increase runoff. Snow and ice may clog culverts and ditches causing water to back-up and pond in low lying and poor drainage areas. Additionally, ice jams could develop on any rivers, creeks, or streams with existing ice cover and cause localized flooding. Rivers in these areas will continue to run high through next week with some waterways potentially
Winter Weather Advisory issued February 15 at 1:36PM MST until February 16 at 11:00AM MST by NWS Boise ID
* WHAT...Snow expected. Total snow accumulations between 2 and 6 inches. * WHERE...Upper Weiser River and West Central Mountains. * WHEN...From 11 PM this evening to 11 AM MST Sunday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Plan on slippery road conditions.
Winter Weather Advisory issued February 13 at 4:58PM MST until February 14 at 11:00AM MST by NWS Boise ID
* WHAT...Snow. Additional snow accumulations up 3 to 6 inches in the mountain valleys with 6 to 12 inches above 6000 feet. Winds gusting as high as 45 mph through this evening. * WHERE...Southwest Highlands, Boise Mountains, and West Central Mountains. * WHEN...Until 11 AM MST Friday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Travel could be very difficult. Gusty winds could bring down tree branches.
Winter Storm Warning issued February 13 at 4:58PM MST until February 14 at 11:00AM MST by NWS Boise ID
* WHAT...Snow and areas of blowing snow expected. Additional snow accumulation of up to 1 inch in the Upper Treasure and Magic Valleys including the Boise metro, with an additional 1 to 3 inches in the Lower Treasure Valley. There is a chance of freezing rain in the Treasure Valley and Western Magic Valley late tonight through Friday morning. An additional 3 to 6 inches possible in the mountains and Camas Prairie, and across northern Malheur and Harney Counties. Winds gusting as high as 40 mph causing areas of blowing and drifting snow. * WHERE...Portions of south central, southwest, and
Winter Storm Warning issued February 12 at 1:56PM MST until February 14 at 11:00AM MST by NWS Boise ID
* WHAT...Heavy snow expected. Total snow accumulations between 2 and 10 inches. Winds gusting as high as 45 mph, along and near the Snake River. Blowing snow a strong possibility. * WHERE...Portions of south central, southwest, and west central Idaho and northeast and southeast Oregon. Highest snowfall amounts across northern Harney/Malheur counties in Oregon, the lower Treasure Valley of Oregon/Idaho, and the Weiser Basin. * WHEN...From 5 AM MST /4 AM PST/ Thursday to 11 AM MST /10 AM PST/ Friday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Visibilities may drop below 1/4 mile
Winter Weather Advisory issued February 12 at 1:56PM MST until February 14 at 11:00AM MST by NWS Boise ID
* WHAT...Snow expected. Total snow accumulations 6 to 10 inches in the mountains, with 2 and 4 inches in the Southwest Highlands. * WHERE...Southwest Highlands, Boise Mountains, and West Central Mountains. * WHEN...From 5 AM Thursday to 11 AM MST Friday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Travel could be very difficult to impossible. Areas of blowing snow could significantly reduce visibility.
Extreme Cold Warning issued February 12 at 1:50PM MST until February 13 at 10:00AM MST by NWS Boise ID
* WHAT...Dangerously cold temperatures as low as 20 below. * WHERE...Camas Prairie. * WHEN...Until 10 AM MST Thursday. * IMPACTS...Frostbite and hypothermia will occur if unprotected skin is exposed to these temperatures. Very cold temperatures can lead to hypothermia with prolonged exposure.Frostbite and hypothermia.
Cold Weather Advisory issued February 12 at 1:50PM MST until February 13 at 10:00AM MST by NWS Boise ID
* WHAT...Very cold temperatures as low as 18 below. * WHERE...Portions of south central, southwest, and west central Idaho and southeast Oregon. * WHEN...Until 10 AM MST Thursday. * IMPACTS...Frostbite and hypothermia will occur if unprotected skin is exposed to these temperatures. Very cold temperatures can lead to hypothermia with prolonged exposure.
Winter Storm Watch issued February 11 at 1:37PM MST until February 14 at 11:00AM MST by NWS Boise ID
* WHAT...Heavy snow possible. Total snow accumulations between 3 and 6 inches possible in the valleys and 6 to 12 inches possible in the mountains. Winds could gust as high as 35 mph causing areas of blowing and drifting snow. * WHERE...Portions of south central, southwest, and west central Idaho and northeast and southeast Oregon. * WHEN...From late Wednesday night through Friday morning. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Travel could be very difficult. The hazardous conditions could impact the Thursday morning and evening commutes.
Cold Weather Advisory issued February 11 at 1:06PM MST until February 13 at 10:00AM MST by NWS Boise ID
* WHAT...Very cold temperatures as low as 25 below zero in the higher Idaho basins, 15 below in eastern Oregon, 5 below zero in the Idaho valleys. Wednesday morning will be the coldest period. * WHERE...Portions of south central, southwest, and west central Idaho and southeast Oregon. * WHEN...Until 10 AM MST Thursday. * IMPACTS...Frostbite and hypothermia will occur if unprotected skin is exposed to these temperatures. Very cold temperatures can lead to hypothermia with prolonged exposure.