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U.S. & Canada 00-UTC 48 Hour Surface Smoke Forecast
Map is in operation from early April through October 31
U.S. Day 1 Fire Weather Outlook
ZCZC SPCFWDDY1 ALL
FNUS21 KWNS 130539
Day 1 Fire Weather Outlook
NWS Storm Prediction Center Norman OK
1239 AM CDT Tue Oct 13 2026
Valid 131200Z - 141200Z
...NO CRITICAL AREAS...
...Synopsis...
A closed mid-level low traversing the Intermountain West will induce
strong southwesterly flow aloft from the southern Rockies into the
central Great Plains and Upper Midwest today. On the backside of the
low, northerly flow will overspread northern CA this afternoon,
resulting in sustained northerly surface winds of less than 15 mph
and 15-20% RH across the northern Sacramento Valley and adjacent
terrain. Locally elevated fire weather conditions are possible in
these areas where pockets of dry fuels may exist.
Farther east, established upper-level ridging over the western Gulf
Coast and lower Mississippi River Valley will maintain a relatively
dry airmass amid drying fuels. Concurrently, a surface frontal
system will progress southward across the central Plains and
Midwest, bringing chances for precipitation. Coupled with lingering
chances for rainfall and higher elevation snowfall across portions
of the West, widespread fire weather concerns will continue to be
reduced across much of the CONUS.
..Elizalde-Garcia.. 10/13/2026
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U.S. Day 2 Fire Weather Outlook
ZCZC SPCFWDDY2 ALL
FNUS22 KWNS 130541
Day 2 Fire Weather Outlook
NWS Storm Prediction Center Norman OK
1241 AM CDT Tue Oct 13 2026
Valid 141200Z - 151200Z
...NO CRITICAL AREAS...
...Synopsis...
A mid-level low over the Four Corners region will send an eastward
progressing cold front into eastern AZ/western NM on Day
2/Wednesday. High elevation snow is likely in southwestern to
central CO with precipitation chances spreading into the central
Plains as the trough lifts over northern CO. Farther west, an
offshore gradient will begin to develop on Day 2/Wednesday
afternoon, increasing east/northeast sustained winds to 15-25 mph in
terrain-favored areas of western L.A. county into Santa Barbara
county; thus, locally elevated fire weather conditions are possible
where dry fuels exist. The pressure gradient will strengthen late in
the Day 2/Wednesday period (early Thursday morning) leading into an
offshore wind event late this week (see the Day 3-8 Fire Weather
Outlook for details).
Meanwhile, high pressure will transition over the Southeast,
transporting rich Gulf moisture into the southern Plains and Ozarks.
As a result, anomalously high PWATs ranging from 1.8-2.2" and
afternoon large scale ascent are expected to promote areas of heavy
rainfall along a sagging cold front. This system is expected to
provide relief to drying fuels across the region, especially to
areas categorized by extreme to exceptional drought.
..Elizalde-Garcia.. 10/13/2026
U.S. Day 3-8 Fire Weather Outlook
ZCZC SPCFWDD38 ALL
FNUS28 KWNS 122154
Day 3-8 Fire Weather Outlook
NWS Storm Prediction Center Norman OK
0454 PM CDT Mon Oct 12 2026
Valid 141200Z - 201200Z
...Synopsis...
A mid-level trough over the Four Corners region on Day 3/Wednesday
will eject into the Plains and merge with a broader and intensifying
trough over the Northeast by Day 5/Friday. A cutoff low is likely to
evolve over Baja California while upper ridging builds back over the
northwestern U.S. This upper level pattern, in addition to surface
high pressure emerging over the Intermountain West and central U.S.,
will support a period of dry, offshore flow across portions of
southern CA Days 4-5/Thursday-Friday. A cold front will push into
the Southeast by Day 5/Friday with dry, post-frontal flow bringing
fire weather concerns to portions of the lower MS River Valley on
Day 5/Friday.
...Days 4-5/Thursday-Friday - Southern California...
A offshore wind event is expected to commence as early as Day
3/Wednesday across portions of southern CA as expansive surface high
pressure settles into the Intermountain West and central U.S.
Upper-level support for appreciable offshore flow will also be
present as a cutoff mid-level low across Baja CA and a building
ridge to the north evolve through late this week. East-northeast
winds of 15-25 mph with higher gusts are likely from western L.A.
county westward into Santa Barbara county with fire weather impacts
beginning Day 4/Thursday and peaking Day 5/Friday. Residual moisture
from recent rainfall should subdue fire weather concerns farther
east. These dry and breezy conditions combined with drying fuels as
temperatures climb through the week prompted inclusion of 40%
critical probabilities for parts of southern CA for both Thursday
and Friday.
...Day 5/Friday - Lower Mississippi River Valley...
An expansive cold front will push through the Southern Plains and
Southeast by the end of the week, ushering in a dry, post-frontal
air mass and modest northerly winds into the region. Well above
normal temperatures under persistent ridging through midweek will
continue to promote receptive fuels across the lower MS River Valley
where forecast ERC values on Day 5/Friday near the 90th percentile.
The preceding heat and its fuel preconditioning impact followed by a
dry cold front will support elevated fire weather conditions for the
lower MS River Valley region on Day 5/Friday where 40% critical
probabilities have been introduced.
..Williams.. 10/12/2026
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