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 191547
Day 1 Fire Weather Outlook
NWS Storm Prediction Center Norman OK
1047 AM CDT Thu Sep 19 2024
Valid 191700Z - 201200Z
...NO CRITICAL AREAS...
The previous forecast remains on track, with no changes or additions
made.
..Squitieri.. 09/19/2024
.PREV DISCUSSION... /ISSUED 0120 AM CDT Thu Sep 19 2024/
...Synopsis...
In the wake of a midlevel low tracking northeastward across
Manitoba, strong post-frontal winds will overspread the northern
Plains. While these winds may overlap pockets of 25-35 percent RH,
cool surface temperatures/marginal RH and recent rainfall should
limit the fire-weather threat. Elsewhere, an expansive surface high
centered over the western CONUS will limit surface winds and the
overall fire-weather risk.
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U.S. Day 2 Fire Weather Outlook
ZCZC SPCFWDDY2 ALL
FNUS22 KWNS 191909
Day 2 Fire Weather Outlook
NWS Storm Prediction Center Norman OK
0209 PM CDT Thu Sep 19 2024
Valid 201200Z - 211200Z
...NO CRITICAL AREAS...
The previous forecast remains generally on track. A few hours of dry
and occasionally breezy conditions may precede isolated thunderstorm
development across northern portions of the Texas Panhandle into
northwestern Oklahoma. However, the marginal nature of these
conditions suggest that wildfire-spread concerns should remain
localized, so no fire weather highlights have been introduced this
outlook.
..Squitieri.. 09/19/2024
.PREV DISCUSSION... /ISSUED 0121 AM CDT Thu Sep 19 2024/
...Synopsis...
A low-latitude midlevel low will advance eastward across the Lower
CO River Valley, while a related belt of strong deep-layer
southwesterly flow overspreads the Southwest. Boundary-layer mixing
into this strong deep-layer flow will favor dry/breezy conditions
across portions of western NM and eastern AZ during the afternoon.
While this could lead to locally elevated fire-weather conditions,
fuels are generally unsupportive of large-fire spread at this time.
Elsewhere, a minimal overlap of breezy surface winds and low RH
should limit fire-weather concerns.
U.S. Day 3-8 Fire Weather Outlook
ZCZC SPCFWDD38 ALL
FNUS28 KWNS 191950
Day 3-8 Fire Weather Outlook
NWS Storm Prediction Center Norman OK
0250 PM CDT Thu Sep 19 2024
Valid 211200Z - 271200Z
Multiple mid-level troughs will traverse the Intermountain West and
eject into the central and northern Mississippi Valley through the
middle of next week, encouraging surface high pressure and cooler
air to gradually overspread much of the CONUS. Appreciable rainfall
accumulations are likely across the southern Plains into the Ohio
Valley through next week, which should help dampen very dry fuels
across these regions. Approaching cooler temperatures or meaningful
rainfall accumulations over much of the CONUS suggests that
quiescent fire weather conditions should prevail for this upcoming
week. Locally dry and breezy conditions may occur over portions of
the Interior West or High Plains, but such conditions appear too
localized to warrant critical probabilities this outlook.
..Squitieri.. 09/19/2024
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