686
FNUS28 KWNS 272144
FWDD38

Day 3-8 Fire Weather Outlook
NWS Storm Prediction Center Norman OK
0442 PM CDT Sun Sep 27 2026

Valid 291200Z - 051200Z

...Synopsis...
An embedded short wave within broader westerly flow aloft will
support a dry, downslope environment over the high plains of MT on
D3/Tuesday. A closed upper-low will pivot into the Southwest through
D3/Tuesday while surface high pressure builds into the Intermountain
West. This will aid in dry, offshore flow across portions of
southern CA. Ahead of the slow-moving upper low, abundant moisture
from the remnants of eastern Pacific hurricanes will stream into the
Southwest and the central/southern Great Plains through midweek
promoting widespread wetting rains and limited fire weather concerns
through midweek. Upper level ridging expands across the western U.S.
in the wake of the exiting closed low bringing warm and dry
conditions but relatively light winds to the region into the
weekend, manifesting primarily as a fuels drying event.

...Day 3/Tuesday...
...North Central Montana...
Increasing westerly flow aloft over the Northern Rockies and a
deepening surface low across the Canadian Prairies will support
enhanced west winds and downslope drying across the high plains of
MT D3/Tuesday. West winds of 15-25 mph and minimum RH of 15-20% will
align with dry fuels across portions of north-central MT. 40%
critical probabilities have largely been maintained.

...Southern California...
Modest offshore flow is expected to extend into D3/Tuesday across
southern CA as a closed upper low pivots into the Southwest. A
northerly wind component up to 20 mph in favored terrain along with
low RH will support a fire weather concern across portions of
southern CA where pockets of receptive fuels exist.

..Williams.. 09/27/2026

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

$$