|
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 281518
Day 1 Fire Weather Outlook
NWS Storm Prediction Center Norman OK
1018 AM CDT Wed Oct 28 2026
Valid 281700Z - 291200Z
...NO CRITICAL AREAS...
The forecast remains on track as previously described with no
changes necessary.
..Stearns.. 10/28/2026
.PREV DISCUSSION... /ISSUED 1247 AM CDT Wed Oct 28 2026/
...Synopsis...
Fire weather concerns will remain low across the CONUS today.
Low-amplitude upper troughing will continue across the northern
CONUS while upper ridging begins to weaken over the Southeast. High
temperatures in the 80s and minimum RH values of 25-30% will overlap
drought-stressed fuels in the lower MS River Valley. However,
lighter prevailing winds will limit a fire weather threat over this
region.
|
U.S. Day 2 Fire Weather Outlook
ZCZC SPCFWDDY2 ALL
FNUS22 KWNS 281826
Day 2 Fire Weather Outlook
NWS Storm Prediction Center Norman OK
0126 PM CDT Wed Oct 28 2026
Valid 291200Z - 301200Z
...NO CRITICAL AREAS...
The previous forecast remains on track as described with no changes
necessary on Day 2/Thursday.
..Stearns.. 10/28/2026
.PREV DISCUSSION... /ISSUED 1248 AM CDT Wed Oct 28 2026/
...Synopsis...
Across the Interior West, westerly flow aloft will gradually
transition to southwesterly as a mid-level trough amplifies over the
Pacific Northwest. Resultant increasing cloud cover across much of
the western CONUS, lighter prevailing winds, and a marginal fuel
environment will limit fire weather concerns. Upper ridging will
continue across the Southeast with surface high pressure centered
over the TN Valley, allowing warm and dry conditions to prevail. A
lack of strong wind where fuels are available to burn, mainly across
the lower MS River Valley and southern Appalachians, will preclude
any significant fire weather threat on Day 2/Thursday.
U.S. Day 3-8 Fire Weather Outlook
ZCZC SPCFWDD38 ALL
FNUS28 KWNS 272121
Day 3-8 Fire Weather Outlook
NWS Storm Prediction Center Norman OK
0421 PM CDT Tue Oct 27 2026
Valid 291200Z - 041200Z
A high amplitude trough will remain over the Pacific Northwest
through at least Day 5/Saturday, leaving much of the western third
of the CONUS under increased cloud cover, below normal temperatures,
and periodic precipitation. The extended forecast period begins on
Day 3/Thursday with nearly zonal flow atop much of the eastern half
of the CONUS as the upper-level jet flows over the international
border with Canada, promoting above normal temperatures from the
Great Plains eastward. As the forecast progresses into Day 4/Friday,
a subtle and transient ridge builds over portions of the Plains and
South while a shortwave trough is expected to pass through the
Southwest. The aforementioned resident trough over the West will
begin to strengthen and nudge eastward on Day 6/Sunday, dragging
cooler-than-normal temperatures and another round of widespread
precipitation across much of the CONUS early next week. This will
drop ERCs across the board even lower headed into next week. Areas
with the driest antecedent conditions (generally over the lower MS
River corridor), are anticipated to receive beneficial
precipitation. Thus, any threat of significant fire weather remains
low and will trend even lower by next week.
..Stearns.. 10/27/2026
|