FNUS21 KWNS 210632 FWDDY1 Day 1 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0131 AM CDT Sun Jun 21 2026 Valid 211200Z - 221200Z ...Synopsis... Zonal mid-level flow will prevail over the CONUS today, with multiple embedded impulses poised to traverse this flow. Across the Intermountain West, one such mid-level impulse will overspread the central Rockies, encouraging surface low development along the southern High Plains. Dry westerly flow will ensue across the desert Southwest, with 15-20 mph sustained westerly surface winds and 5-15 percent RH overspreading dry fuels from far eastern Arizona into central New Mexico, warranting the continuation of Elevated highlights. Dry and windy conditions will also channel within the Snake River Plain by afternoon peak heating in southern Idaho. Here, 15-20 mph sustained westerly surface winds will coincide with 15 percent RH and dry fuels, with Elevated highlights maintained here as well. ..Squitieri.. 06/21/2026 ...Please see www.spc.noaa.gov/fire for graphic product... $$