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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 051554
Day 1 Fire Weather Outlook
NWS Storm Prediction Center Norman OK
0954 AM CST Thu Nov 05 2026
Valid 051700Z - 061200Z
...NO CRITICAL AREAS...
The previous forecast remains on track with no changes necessary.
The CONUS fire environment remains subdued as a result of recent
widespread precipitation and persistent near to below normal
temperatures.
..Stearns.. 11/05/2026
.PREV DISCUSSION... /ISSUED 1147 PM CST Wed Nov 04 2026/
...Synopsis...
A minimal fire weather threat is expected across the CONUS for
today. An eastward advancing mid-level trough and related
precipitation along a cold front will move into the Northeast today,
moistening fuels across the region and reducing fire weather
concerns.
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U.S. Day 2 Fire Weather Outlook
ZCZC SPCFWDDY2 ALL
FNUS22 KWNS 051858
Day 2 Fire Weather Outlook
NWS Storm Prediction Center Norman OK
1258 PM CST Thu Nov 05 2026
Valid 061200Z - 071200Z
...NO CRITICAL AREAS...
No changes are necessary to the previous forecast. While the
previously mentioned northeasterly flow remains on track over parts
of southern CA, recent accumulating rainfall will keep fuels below
critical thresholds. However, this event (starting on Day 2/Friday)
is likely to cure fuels in southern coastal CA, potentially
presenting a higher fire risk should another offshore wind event
emerge next week or beyond.
..Stearns.. 11/05/2026
.PREV DISCUSSION... /ISSUED 1151 PM CST Wed Nov 04 2026/
...Synopsis...
An upper-level ridge will strengthen over much of the northwestern
U.S. D2/Friday as broad surface high pressure settles into the
Intermountain West. Deep layer northeasterly flow will develop as an
upper-level low moves into the Desert Southwest, supporting dry,
offshore wind trajectories across portions of southern CA. The
strongest east to northeast winds of 15-25 mph with higher gusts
will favor terrain gaps while RH falls to around 15% during the day.
However, recent rainfall and a marginal fuelscape will help reduce
the overall impacts of the dry offshore flow, precluding
introduction of broader fire weather highlights across southern CA.
U.S. Day 3-8 Fire Weather Outlook
ZCZC SPCFWDD38 ALL
FNUS28 KWNS 052147
Day 3-8 Fire Weather Outlook
NWS Storm Prediction Center Norman OK
0347 PM CST Thu Nov 05 2026
Valid 071200Z - 131200Z
...Synopsis...
Upper-level high pressure continue building across a large portion
of the western U.S. on Day 3/Saturday. This will shift temperatures
from below or near-normal to above-normal starting this weekend. The
latest forecast guidance agrees that this high pressure, although
not exceptionally intense, will remain in place through the middle
of next week. A cold front will move off the East Coast on Day
3/Saturday as an upper-level low pressure system deepens over the
Great Lakes, delivering a final round of precipitation over the
Northeast. Following this frontal passage, high pressure will
establish itself across the eastern half of the country, keeping
conditions mostly dry with a very slow warming trend to a few
degrees above-normal next week.
...Southern California...
An upper-level low pressure system transiting across
western/northern Mexico on Day 3/Saturday will slow down and remain
nearly stationary into early next week. This setup will promote
easterly winds, leading to weak to moderate Santa Ana winds again on
Day 3/Saturday. Top sustained wind speeds from the north to
northeast are expected to be 15-25 mph (with isolated gusts up to 35
mph) amid minimum RHs down to around 15-20% in areas prone to these
winds. Breezy conditions could persist into Day 5/Monday, though the
surface pressure gradient will start to decrease as the upper-level
low weakens and slowly moves eastward. Despite the drier air, recent
rain and higher moisture levels in vegetation are expected to
prevent widespread fire weather risk. Nevertheless, in isolated
locations that missed out on recent precipitation, a localized
elevated fire danger could develop.
..Stearns.. 11/05/2026
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