ZCZC SPCFWDDY2 ALL
   FNUS22 KWNS 071958

   Day 2 Fire Weather Outlook  
   NWS Storm Prediction Center Norman OK
   0258 PM CDT Mon Jul 07 2025

   Valid 081200Z - 091200Z

   ...Northwest and Great Basin...
   An approaching mid-level trough and associated increasing mid-level
   west winds will introduce elevated fire weather conditions into the
   Columbia Gorge/Basin and adjacent leeward slopes of the Cascades
   Tuesday. A mid-level low off the coast of northern CA will provide
   supportive dynamics for isolated thunderstorms across central OR.
   Limited precipitation with these thunderstorms will increase fire
   ignition potential amid receptive fuels primarily across the higher
   terrain of central and east-central OR. Elevated fire weather
   conditions atop dry fuels are still expected across much of central
   and eastern NV and far western UT where southwest winds of 10-20 mph
   and relative humidity in the 10-15% range will be collocated.

   ..Williams.. 07/07/2025

   .PREV DISCUSSION... /ISSUED 0200 AM CDT Mon Jul 07 2025/

   ...Synopsis...
   A midlevel low will gradually approach the northern CA coast as it
   loosely phases with a stronger midlevel trough moving eastward
   across British Columbia on Tuesday. Large-scale ascent preceding the
   midlevel low will aid in isolated thunderstorm development along the
   higher terrain of central OR. Around 0.7 inch PW and a deeply mixed
   boundary layer will favor dry thunderstorms, with an associated risk
   of lightning-induced ignitions and strong/erratic outflow winds. At
   the same time, a belt of moderate-strong midlevel winds peripheral
   to the trough in British Columbia will cross the Cascades. This will
   promote dry/breezy downslope winds in the Columbia Basin, with the
   strongest winds expected through the Cascade Gaps. Given
   dry/receptive fuels, elevated fire-weather conditions are expected.

   Farther south, moderate deep-layer southwesterly flow ahead of the
   midlevel low will overspread a well-mixed boundary layer across
   parts of central/southern NV, where elevated to locally critical
   fire-weather conditions are expected.

      

   ZCZC SPCFWDD38 ALL
   FNUS28 KWNS 072200

   Day 3-8 Fire Weather Outlook  
   NWS Storm Prediction Center Norman OK
   0500 PM CDT Mon Jul 07 2025

   Valid 091200Z - 151200Z

   ...Day 3/Wednesday...
   Stronger west winds with the arrival of a mid-level short wave
   trough and attendant cold front are expected across the Columbia
   Basin where fuels remain dry. Although cooler temperatures and
   slightly higher humidity arrive with the cold front, sustained west
   winds of 15-25 mph will continue to support a fire weather threat
   amid dry fuels across the Columbia Basin. A mid-level short wave
   trough will translate over a broad ridge situated over the
   Southwestern U.S. Collocation of ascent ahead of a mid-level jet max
   and antecedent mid-level moisture should support isolated
   thunderstorms with limited rainfall across southeastern
   OR/southwestern ID on Day 3/Wednesday. The accelerated mid-level
   flow on the southern periphery of the aforementioned short wave
   along with a deep/well-mixed boundary layer will promote elevated
   west-southwest winds across much of the Great Basin and portions of
   southern Idaho. The breezy and very dry conditions support at least
   a 40% probability for critical fire weather conditions across the
   region amid an expected dry fuelscape.

   ...Day 4/Thursday...
   The mid-level short wave edges eastward into the Southern Rockies
   bringing elevated west winds to the Intermountain West and great
   Four Corners region Day 4/Thursday. A 40% probability for critical
   fire weather was introduced into southern UT and northern AZ where
   fuels will go under several days of drying through midweek, becoming
   more receptive to wildfire spread.

   ...Day 5-8/Friday-Monday...
   Building heat is expected across much of the Western U.S. through
   the weekend under an expanding mid-level ridge over southern CA
   which will promote a limited wind threat across the region. Monsoon
   moisture and associated thunderstorms will remain confined to
   southern AZ and NM through the weekend.

   ..Williams.. 07/07/2025