ZCZC SPCFWDDY2 ALL
   FNUS22 KWNS 060543

   Day 2 Fire Weather Outlook  
   NWS Storm Prediction Center Norman OK
   1243 AM CDT Thu Aug 06 2026

   Valid 071200Z - 081200Z

   ...Synopsis...
   A flattening upper-level ridge will be centered over the southern
   Great Basin on Day 2/Friday, with stronger southwesterly to
   northwesterly flow riding over the ridge atop the northwestern
   CONUS. Numerous large wildfires in the Pacific Northwest and
   northern Rockies will continue to produce plumes of smoke that will
   be transported across the CONUS within the upper pattern. Meanwhile,
   the northern fringe of monsoonal moisture will gradually advect into
   southern California, Nevada, and Utah, promoting afternoon
   thunderstorms amid a dry boundary layer. 

   ...Northern Intermountain West...
   Strengthening flow aloft amid a reinforced onshore pressure gradient
   and locally enhanced winds will bring elevated fire weather
   conditions to much of the Northwest U.S. on Day 2/Friday. A
   prolonged dry airmass has contributed to worsening fuel conditions,
   with forecast annual ERCs exceeding the 95-98th percentiles. While
   the spatial extent of sustained 15+ mph winds are somewhat limited,
   diurnal flow and terrain-driven winds amid 10-20% RH and
   exceptionally dry fuels will present a favorable environment for new
   fire starts and impact active wildfires. 

   ...Southern Nevada and southwestern Utah...
   Daytime instability and increasing mid-level moisture may support
   thunderstorm development across southern Nevada and Utah.
   Precipitation efficiency is expected to be limited with a dry
   boundary layer and forecast PWATs of 0.8" or less. Fuels have grown
   more receptive under several days of hot and dry conditions,
   presenting a greater concern for lightning ignitions. As such,
   Isolated Dry Thunderstorm highlights have been introduced across the
   region.

   ...California...
   Daytime high temperatures of 100+ degrees F and 5-15% RH are
   forecast across the California valleys and surrounding terrain. The
   spatial extent of sustained 15+ mph winds for 3 hours or greater
   will be limited, precluding an introduction of fire weather
   highlights; however, periods of onshore flow exceeding 15 mph are
   possible across localized interior regions and terrain-favored
   areas, supportive of locally elevated fire concerns where fuels are
   receptive.

   ..Elizalde-Garcia.. 08/06/2026

      

   ZCZC SPCFWDD38 ALL
   FNUS28 KWNS 052140

   Day 3-8 Fire Weather Outlook  
   NWS Storm Prediction Center Norman OK
   0440 PM CDT Wed Aug 05 2026

   Valid 071200Z - 131200Z

   An upper high is expected to remain over the southern Great
   Basin/Four Corners through the weekend while the upper-level ridging
   over the northern Intermountain West will flatten. Monsoonal
   moisture will slowly drift west into southern California and north
   into Great Basin and eventually back to the Colorado Rockies during
   the outlook period. Forecast uncertainty remains regarding the
   location/magnitude of both the monsoonal moisture and flattening of
   the ridge through the weekend and into next week. 

   ...Northern Intermountain West...
   The upper-level ridge will begin to flatten on Day 3/Friday across
   British Columbia and possibly into the northwestern CONUS, with a
   higher likelihood of zonal flow across the northwestern US over the
   weekend. Westerly flow aloft will increase along with a
   strengthening onshore pressure gradient to bring dry and breezy
   conditions to portions of the northern Intermountain West starting
   Day 3/Friday. Broad 40% areas remain on Day 3/Friday - Day
   4/Saturday with locally critical conditions expected in the Cascade
   Gaps, while much of the 40% areas will likely experience near to
   elevated fire weather conditions. Dry and breezy conditions are
   likely to continue on Day 5/Monday from northern California
   extending across the northern Great Basin into eastern Wyoming.
   During this period, winds are likely to be west-northwest sustained
   at 10-20 mph amid minimum RH of 5-20%. 

   ...Southern Intermountain West...
   Monsoonal moisture will slowly spread west/north with increasing
   chances and coverage of thunderstorms in southern California, the
   Great Basin, and western Colorado. There remains uncertainty
   regarding the western/northern extent of the monsoonal moisture,
   especially the amount and moisture duration. Probabilities of dry
   thunderstorms were added to Day 3/Friday - Day 5/Sunday. These areas
   were chosen based on expected low probability of wetting rainfall in
   the coming days. Isolated to scattered mixed wet/dry thunderstorms
   are likely farther east in Utah and Colorado, but there are higher
   probabilities of monsoonal moisture persisting across these areas
   with eventual wetting rainfall. Additionally, mixed wet/dry
   thunderstorms are likely in the Peninsular Ranges of southern
   California, but PWAT values of 1.25"+ and surface dewpoints of 50F+
   along with slow storm motions may limit ignition efficiency. These
   10% areas are likely to change in the coming outlooks, and Day
   5/Sunday was the last day included due to decreasing forecast
   confidence beyond this weekend. 

   ...High Plains...
   Dry and breezy conditions are expected across portions of eastern
   Montana and Wyoming this weekend and potentially continuing through
   early next week. Lee troughing and eventually a deepening surface
   low on the central Plains will help increase winds amid a hot and
   dry airmass. Increasing southerly winds across portions of western
   Kansas, western Oklahoma, and the Oklahoma/Texas Panhandles will
   likely result in elevated winds/RH. Given the potential for
   thunderstorms and wetting rain across portions of these areas ahead
   of time, probabilities were not included at this time. However, if
   forecast trends hold, probabilities/risk areas are likely to be
   included in future outlooks.

   ..Nauslar.. 08/05/2026