ZCZC SPCFWDDY1 ALL
   FNUS21 KWNS 011455

   Day 1 Fire Weather Outlook  
   NWS Storm Prediction Center Norman OK
   0955 AM CDT Sun Jun 01 2025

   Valid 011700Z - 021200Z

   The previous forecast remains on track with no changes required.
   Morning observations show RH values already falling into the teens
   to low 20s across western NV with further RH reductions expected as
   diurnal heating and downslope warming/drying increase through
   afternoon. See the previous discussion below for additional details.

   ..Moore.. 06/01/2025

   .PREV DISCUSSION... /ISSUED 1258 AM CDT Sun Jun 01 2025/

   ...Synopsis...
   An upper-level trough will continue to move through the Northwest
   with the southern extension of the trough eventually cutting off
   west of the northern California coast. Near Baja, the upper cyclone
   will begin to lift into the Southwest ahead of the Northwest/Great
   Basin trough. A front will stall in the northern Great Basin with a
   modest surface low deepening along the boundary.

   ...Nevada...
   Elevated to locally critical fire weather appears possible in
   northwest Nevada in the lee of the Sierra. Downslope winds of 15-25
   mph will coincide with 10-20% RH during the afternoon. Duration of
   the 20+ mph winds (ensemble guidance shows this quite well) is the
   main limiting factor for adding a critical area.

   Winds in southern Nevada will also increase during the afternoon.
   Low-levels will be dry, but moisture/cloud influx driven by the
   approaching cyclone will generally limit the duration of fire
   weather concerns. Still, locally elevated conditions are possible,
   especially along the northern fringe of clouds/moisture.

   Scattered convection with at least some embedded thunderstorms are
   also possible across much of Nevada. PW values will generally be too
   high with southern extent and coverage/fuel receptiveness is
   questionable farther north. Dry lightning risk continues to be too
   low for highlights.

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

   CLICK FOR DAY 1 FIREWX AREAL OUTLINE PRODUCT (KWNSPFWFD1)