ZCZC SPCFWDDY1 ALL
FNUS21 KWNS 140700
Day 1 Fire Weather Outlook
NWS Storm Prediction Center Norman OK
0200 AM CDT Sat Jun 14 2025
Valid 141200Z - 151200Z
...Synopsis...
A seasonably modest mid-level jet will be positioned over the
northern CONUS with the entrance region over the northern parts of
the Great Basin. This jet will provide the focus for fire weather
concerns today, with these being over northwest Nevada and in the
Columbia River Valley in Washington and Oregon. In northwest Nevada,
RH is expected to be near 5-15% with gusts of 20-25 mph with
afternoon mixing. Fuels in the area are relatively dry. Therefore,
have maintained the Elevated area in this outlook, though brief,
localized Critical conditions are possible. In the Columbia Valley,
RH is expected to be 10-20% with gusts to 20-25 mph and at least
modestly dry fuels, so have kept the Elevated area here as well.
..Supinie.. 06/14/2025
U.S. Day 2 Fire Weather Outlook
ZCZC SPCFWDDY2 ALL
FNUS22 KWNS 140701
Day 2 Fire Weather Outlook
NWS Storm Prediction Center Norman OK
0201 AM CDT Sat Jun 14 2025
Valid 151200Z - 161200Z
...Synopsis...
Modest southwesterly flow aloft is expected over the Great Basin on
Sunday, and strong mixing during the afternoon will bring some of
that flow down to the surface. Across parts of northwestern Nevada,
RH is expected to be near 5-15% with gusts to 20-25 mph. Fuels in
the region are relatively dry, with no rain expected in the
intervening period. For this reason, have introduced Elevated
highlights in this area.
..Supinie.. 06/14/2025
U.S. Day 3-8 Fire Weather Outlook
ZCZC SPCFWDD38 ALL
FNUS28 KWNS 132058
Day 3-8 Fire Weather Outlook
NWS Storm Prediction Center Norman OK
0358 PM CDT Fri Jun 13 2025
Valid 151200Z - 211200Z
A mid/upper-level ridge centered on the southern/central Rockies
will deamplify as a midlevel trough and related strong flow aloft
track eastward across the Great Basin and parts of the Southwest and
southern/central Rockies on Days 4-5/Monday-Tuesday. The strong flow
aloft will overspread a warm/dry antecedent air mass across these
regions, promoting elevated to locally critical fire-weather
conditions each afternoon. Depending on the receptiveness of fuels,
higher probabilities may eventually be needed across parts of the
Great Basin on Day 4/Monday and the southern Rockies on Day
5/Tuesday -- given relatively high confidence in the development of
critical conditions each day.
By Days 7-8/Thursday-Friday, a robust midlevel trough/low should
evolve off the Pacific Northwest Coast. While the exact
timing/evolution of the trough/low varies among the medium-range
guidance, current indications are that strong west-southwesterlies
peripheral to this feature will overspread parts of the Great Basin
on Day 7/Thursday and/or Day 8/Friday. Therefore, 40-percent
Critical probabilities have been added for both days, and future
adjustments will likely be needed.
..Weinman.. 06/13/2025