ZCZC SPCFWDDY2 ALL
   FNUS22 KWNS 290704

   Day 2 Fire Weather Outlook  
   NWS Storm Prediction Center Norman OK
   0204 AM CDT Sun Jun 29 2025

   Valid 301200Z - 011200Z

   ...Synopsis...
   As mid-level ridging builds over the western US, a weak subtropical
   low will deepen along the western periphery of the ridge across CA
   Monday. The building mid-level heights and approach of the upper
   trough will allow robust mid-level moisture to shift northward
   across portions of the West. 

   ...Northwest...
   Heating across the higher terrain, coupled with weak ascent from the
   approaching upper trough will allow for isolated to widely scattered
   thunderstorms across northern CA and southern OR Monday afternoon
   and evening. Dry sub-cloud layers with steep lapse rates below 500mb
   will support a mixed wet/dry thunderstorm environment. Given the
   potential for dry lightning atop receptive fuels, an IsoDryT area
   has been added across parts of the Northwest where fire starts are
   possible.

   ...Great Basin...
   Farther south, beneath the upper ridge, very hot surface
   temperatures are expected over parts of NV and western UT. While
   surface winds are not expected to be overly strong, widespread RH
   values below 15% will be present. Occasional 15 mph wind gusts on a
   local basis and the hot/dry conditions could support a few hours of
   locally elevated fire-weather potential over dry fuels.

   ..Lyons.. 06/29/2025

      

   ZCZC SPCFWDD38 ALL
   FNUS28 KWNS 282156

   Day 3-8 Fire Weather Outlook  
   NWS Storm Prediction Center Norman OK
   0456 PM CDT Sat Jun 28 2025

   Valid 301200Z - 061200Z

   ...Day 3-5/Monday-Wednesday...
   An approaching mid-level trough will aid in northward moisture
   transport into northern California beginning Day 2/Sunday. Steeper
   mid-level lapse rates and instability along with dry surface
   conditions will promote a mixed wet/dry thunderstorm environment
   across northern California into south central Oregon for Day
   3/Monday. Trough advancement will be rather slow through midweek,
   keeping dry thunderstorm threat across northern California into
   southern/southeastern Oregon by Day 4/Tuesday. Farther east, 
   uniform southerly flow ahead of the mid-level trough will promote
   strong south winds at the surface from the Mojave Desert into much
   of central and eastern Nevada. Enhanced southerly winds will be
   complimented with low relative humidity, hot temperatures as well as
   dry fuels, prompted inclusion of 40 percent probability of critical
   fire weather conditions for Day 4/Tuesday. Monsoon moisture will
   simultaneously be surging northwestward into the Intermountain West
   early next week. The initial push of elevated moisture along with
   daytime heating will promote dry thunderstorm development along the
   higher terrain of central and southwestern Utah on Day 4/Tuesday.
   The thunderstorm threat extends into Day 5/Wednesday across much of
   the Intermountain West, but some uncertainty exists in expected
   magnitude of monsoon moisture which could enhance precipitation
   amounts, roughly east of the Nevada/Utah border.

   ...Day 6-8/Thursday-Friday...
   The upper-level ridge axis shifts eastward into the Great Plains and
   Midwest by the end of the week with a potential negatively tilted
   mid-level trough moving into the West Coast. The attendant mid-level
   jet maxima will present a broad fire weather threat across portions
   of the Great Basin Day 6-7/Thursday-Friday where minimal rainfall
   from monsoon moisture is expected. 40 percent probabilities of
   critical fire weather conditions were added to portions of southern
   Nevada, western Utah and northwestern Arizona.

   ..Williams.. 06/28/2025