


Fire Weather Outlook Discussion
Issued by NWS
Issued by NWS
610 FNUS22 KWNS 261941 FWDDY2 Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0240 PM CDT Sat Apr 26 2025 Valid 271200Z - 281200Z ...EXTREMELY CRITICAL FIRE WEATHER AREA FOR CENTRAL AND SOUTHERN NEW MEXICO INTO FAR WEST TEXAS... ...CRITICAL FIRE WEATHER AREA FOR PORTIONS OF CENTRAL AND EASTERN NEW MEXICO INTO FAR WEST TEXAS... ...Day 2 Update... A dynamic mid-level trough will translate eastward into the Intermountain West as a lee cyclone strengthens across the Central High Plains on Sunday. A dry, well-mixed boundary layer will be in place beneath a strong mid-level jet supporting an increasing surface wind response over much of far eastern Arizona, New Mexico into eastern Colorado Sunday afternoon. This is still expected to result in a belt of Critical to Extremely Critical fire weather conditions across much of New Mexico. ...Eastern Colorado... Green-up continues across the Central/Southern High Plains but some dormant and receptive fuels remain across the area. Accelerating south-southwest winds coupled with relative humidity falling to around 10 percent, will combine with remaining receptive fuels to allow for an increased fire spread potential across the High Plains of eastern Colorado Sunday. Elevated highlights were extended into this area. ..Williams.. 04/26/2025 .PREV DISCUSSION... /ISSUED 0124 AM CDT Sat Apr 26 2025/ ...Synopsis... As a mid-level trough moves over the Great Basin during the day Sunday, an accompanying southwesterly mid-level jet maximum is forecast to overspread the southern and central Rocky Mountains. Strong lee cyclogenesis at the surface east of the central Rockies, as well as deep boundary layer mixing beneath the jet core across the Southwest, will result in strong southwesterly surface winds and dry conditions from the Four Corners region into the southern High Plains. These conditions will be responsible for a corridor of concern for Extremely Critical fire-weather across central and southern New Mexico into far West Texas. ...Central and Southern New Mexico into Far West Texas... 00Z Ensemble guidance from the HREF suggests there is high confidence in widespread 30+ MPH winds along with the potential for single-digit relative humidity. Forecast sounding profiles suggest an ensemble mean mixing depth at or exceeding 3 km AGL / 600 mb, and ensemble minimum sustained winds exceed Extremely Critical criteria. With current ERC fuels guidance showing fuels exceeding the annual 90th percentile, conditions will be supportive of rapid wildfire ignition and spread. While low relative humidity and high winds will exist from northwest New Mexico into the Four Corners, as well as southeastern Colorado, fuels further north do not appear to be overly receptive to wildfire ignition and spread at this time. ...Please see www.spc.noaa.gov/fire for graphic product... $$