Fire Weather Outlook Discussion
Issued by NWS
Issued by NWS
800 FNUS21 KWNS 281653 FWDDY1 Day 1 Fire Weather Outlook NWS Storm Prediction Center Norman OK 1153 AM CDT Sat Jun 28 2025 Valid 281700Z - 291200Z ...Snake River Plain... A broad area of elevated mid-level winds on the southern periphery of a mid-level trough along with daytime boundary layer mixing will support breezy winds across the Snake River Plain this afternoon. Elevated highlights were trimmed across portions of the Magic Valley Region owing to a now marginal overlap of winds and low relative humidity based on the latest model guidance consensus. ...Southwestern Wyoming... Only minor changes were noted to Elevated highlights across southwestern Wyoming. Increased mid-level flow coupled with lee troughing farther east will enhance westerly winds across the area. The breezy winds combined with dry fuels and relative humidity dropping into the 15-20 percent range will promote elevated fire weather conditions this afternoon. ..Williams.. 06/28/2025 .PREV DISCUSSION... /ISSUED 0203 AM CDT Sat Jun 28 2025/ ...Synopsis... Subtle mid-level troughing on the northern periphery of the sub tropical ridge will continue over the northern Rockies and Northwest today. A belt of stronger mid-level flow will remain in place over parts of the Intermountain West, supporting dry downslope flow ahead of a weak cold front over the Northwest. Lee troughing and the increased flow aloft will encourage breezy westerly flow amid dry conditions, conducive for elevated fire-weather conditions. ...Snake River Plain into western WY... Increasing mid-level flow attendant to a passing mid-level shortwave trough will overspread a dry and well-mixed boundary layer across portions of ID and western WY this afternoon. Aided by lee troughing, elevated surface winds are expected across the central/eastern portions of the Snake River Plain and through the Red Desert in southwest WY. Westerly winds of 15-20 mph, combined with warm afternoon temperatures and relative humidity in the 15-20 percent range, will support elevated fire weather conditions this afternoon and evening. ...Please see www.spc.noaa.gov/fire for graphic product... $$