896
FNUS22 KWNS 111951
FWDDY2

Day 2 Fire Weather Outlook
NWS Storm Prediction Center Norman OK
0251 PM CDT Fri Sep 11 2026

Valid 121200Z - 131200Z

...Great Basin and parts of the Sacramento Valley and adjacent
foothills...
A robust upper low and associated 65-75 knot mid-level jet moving
into Pacific Northwest and northern CA will promote elevated fire
weather concerns across much of the Great Basin and portions of the
Sacramento Valley and adjacent foothills/Coastal Range on
D2/Saturday. West/southwest winds of 15-20 mph will evolve across
much of NV, southern ID by Saturday afternoon while RH reductions of
10-15% will be common central/southern NV. A corridor of enhanced
southwesterly winds of 20-30 mph in closer vicinity to the mid-level
jet is expected across far northeastern CA, far northwest NV and
southeastern OR. However, fuel receptiveness across the region will
remain subdued due to recent moisture and afternoon RH closer to
20-25% should insulate impacts from an otherwise near-critical
meteorological environment.

Elevated highlights have been introduced into portions of the
Sacramento Valley and Coastal Range vicinity for Saturday. Onshore
flow accelerates through Saturday as the upper low and associated
stronger flow aloft push into the region. The onshore flow should
inhibit critically low RH of 15% or less from developing Saturday
afternoon. However, west winds of 10-20 mph (localized wind gusts of
40 mph in favored Coastal Range terrain gaps) will sustain an
overall fire weather threat within sufficiently receptive fuelscape.

..Williams.. 09/11/2026

.PREV DISCUSSION... /ISSUED 0207 AM CDT Fri Sep 11 2026/

...Synopsis...
An upper low is forecast to move into portions of the Pacific
Northwest on Saturday with a fairly strong 70 kt jet streak. As this
jet streak begins to enter the Great Basin, the cross-range flow and
boundary layer mixing will result in dry and breezy conditions
supporting Elevated fire-weather highlights.


...Northern Nevada into far southern portions of Oregon and Idaho...

Westerly surface winds should become fairly gusty, reaching 20-25
MPH and relative humidity of 10-15%. However, fuels are generally in
the vicinity of the 50th-60th annual ERC percentiles, suggesting a
lack of receptiveness to wildfire ignition and spread. In spite of
the meager fuels, meteorological conditions will warrant at least
Elevated highlights owing to the strong surface winds.

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

$$