ZCZC SPCFWDDY1 ALL
   FNUS21 KWNS 261651

   Day 1 Fire Weather Outlook  
   NWS Storm Prediction Center Norman OK
   1151 AM CDT Fri Jun 26 2026

   Valid 261700Z - 271200Z

   ...EXTREMELY CRITICAL FIRE WEATHER AREA FOR CENTRAL UTAH INTO
   NORTHWESTERN ARIZONA AND EXTREME SOUTHEASTERN NEVADA...
   ...CRITICAL FIRE WEATHER AREA FOR MUCH OF UTAH...EASTERN
   NEVADA...NORTHERN ARIZONA...SOUTHWESTERN WYOMING...AND FAR WESTERN
   COLORADO...

   ***Dangerous fire weather conditions are expected today across
   portions of the Great Basin and Southwest***

   ...Northwestern Arizona and far southeastern Nevada into central
   Utah...
   The forecast remains on track for hazardous weather conditions
   conducive to rapid spread/fire growth on existing wildfires and new
   ignitions. Surface observations already depict expansive
   single-digit RH values with wind gusts exceeding 30 mph. ERCs are at
   or above the 90th percentile, and fuels have proven to be receptive
   as several large wildfires (reported to have extreme fire behavior)
   are ongoing across the region. At peak heating, sustained
   southwesterly surface winds will increase to 25-35 mph amid 5-12% RH
   values. An extended burning period is expected (10+ hours for some
   locations), as poor overnight humidity recoveries and residual gusty
   winds will lead into a second day of dangerous fire weather
   conditions (see the Day 2 Fire Weather Outlook).

   See the previous discussion for more information.

   ..Elizalde-Garcia.. 06/26/2026

   .PREV DISCUSSION... /ISSUED 0300 AM CDT Fri Jun 26 2026/

   ...Synopsis...
   Dangerous fire weather conditions are forecast across portions of
   the Great Basin and Southwest today as a robust fire weather pattern
   begins for an expansive portion of the Intermountain West. This
   pattern will bring exceptionally dry and windy conditions following
   antecedent dry thunderstorm activity over the past 1-2 days,
   resulting in significant fire weather concerns for any new
   ignitions, lingering holdovers, and ongoing large fires across the
   western CONUS.

   ...Northwestern Arizona and far southeastern Nevada into central
   Utah...
   A seasonably strong mid-level trough will dig into the western CONUS
   today, with an attendant mid-level jet overspreading portions of the
   Great Basin as upper-level ridging amplifies over the Great Plains.
   This will promote a deepening surface cyclone over the northern
   Great Basin, which will subsequently support a strong surface
   pressure gradient across much of the Intermountain West when
   combined with surface high pressure over New Mexico. Latest high-res
   guidance continues to depict a corridor of strong southwesterly
   winds (sustained 25-35 mph) developing amid very low RH values of
   5-15% from far southeastern Nevada and northwestern Arizona into
   central Utah. With very dry and receptive fuels across this region
   (ERCs in the 80-90+ percentiles) and ongoing large wildfire
   activity, these conditions will yield an extremely critical fire
   weather threat across this region. Deep boundary layer mixing
   coupled with the aforementioned mid-level jet will also promote wind
   gusts to 45 mph. A more expansive area of elevated to critical fire
   weather concerns is expected across adjacent areas of the Great
   Basin where modestly weaker sustained surface winds (generally 15-25
   mph) are forecast to overlap very low RH values of 5-20%. An
   extended period of critical wind/RH conditions (perhaps 10+ hours
   for some locations), poor overnight humidity recoveries, and
   residual gusty winds are forecast. Only minor adjustments were made
   to the drawn areas with this update to reflect the latest available
   guidance, and minor trimming was done on the northeastern extent of
   the Elevated highlights in central Wyoming to account for heavier
   rainfall on Thursday.

   ...Colorado Plateau...
   Increasing mid-level flow and ascent ahead of the approaching
   mid-level trough (coupled with dry boundary layer profiles and PWAT
   values of 0.5-0.8") will support the potential for isolated dry
   thunderstorms this afternoon from northwestern New Mexico into much
   of western Colorado. While storm motions are anticipated to be
   generally 20-30+ kts, pockets of heavier rainfall totals are
   possible, especially across northwestern New Mexico and southwestern
   Colorado where the latest guidance suggests PWAT contents and storm
   coverage may be locally greater. Thus, a mix of wet/dry
   thunderstorms is likely. Pockets of lingering receptive fuels (ERCs
   in the 80-90+ percentile) will continue to be receptive to lightning
   ignitions, however, and concerns regarding any lightning ignitions
   increase as multiple days of critical fire weather conditions are
   expected this weekend.

   ...Please see www.spc.noaa.gov/fire for graphic product...

   CLICK FOR DAY 1 FIREWX AREAL OUTLINE PRODUCT (KWNSPFWFD1)