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SPC Day 2 Fire Weather Outlook


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SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook Image
Day 2 Fire Weather Outlook  
NWS Storm Prediction Center Norman OK
0158 AM CDT Sat Sep 28 2024

Valid 291200Z - 301200Z

...CRITICAL FIRE WEATHER AREA FOR PORTIONS OF THE NEBRASKA PANHANDLE
AND WESTERN SOUTH DAKOTA...

...Synopsis...
A deepening mid to upper-level trough and accompanying jet streak
are expected to traverse the western Canadian provinces Sunday. At
the surface, a low will deepen across the northern Rockies and
tightening pressure gradients will develop from the northern Plains,
into the Intermountain West, and Cascades. The result will be
increasing surface winds within these areas. A dry return-flow
regime over the northern Plains will unfold, where high confidence
in the latest guidance suggests speeds around 15-25 mph by the
afternoon. Persistent low moisture content of fine to medium fuels
across this region, ERCs exceeding 95th percentiles, and RH in the
low teens warrants a narrow Critical area from the NE Panhandle
through west-central SD. Further west of this region, southwest to
westerly winds of slightly lower speeds will impact central WY,
southern MT, and portions of ID.

Two other Elevated areas have also been included for the Great Basin
and Columbia River Basin of WA. Fuels across the former region
continue to become more receptive to fire spread due to persistent
warm and dry conditions, but only transient elevated to critical
south-southwest winds are anticipated. Dry, westerly downslope
surface flow near 15 mph coinciding with RH in the upper teens
preceding the trough will impact eastern WA. If later guidance
suggest a deeper and/or slower trough progression, this Elevated
area may need to be expanded.

..Barnes.. 09/28/2024

...Please see www.spc.noaa.gov/fire for graphic product...

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