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SPC Day 2 Fire Weather Outlook

SPC Day 2 Fire Weather Outlook

[html]SPC Day 2 Fire Weather Outlook
         
Day 2 Fire Weather Outlook Image

Day 2 Fire Weather Outlook 
NWS Storm Prediction Center Norman OK
1217 PM CDT Fri Oct 25 2024

Valid 261200Z - 271200Z

Latest high-resolution forecast guidance indicates that elevated
conditions are likely from Maryland/Delaware northward through
Massachusetts. Minimum RH of 25-35% with northwest sustained winds
of 10-20 mph and gusts of 20-30 mph are expected tomorrow across
this area. Additionally, record high fire danger will result in
locally critical conditions, most likely in portions of New
Jersey/vicinity.

An Elevated area was also added for portions of Wyoming where near
critical winds/RH will overlap dry fuels. Locally elevated winds/RH
may extend into portions of western Nebraska/South Dakota as well.

..Nauslar.. 10/25/2024

.PREV DISCUSSION... /ISSUED 0201 AM CDT Fri Oct 25 2024/

...Synopsis...
Strong ridging will dominate the CONUS D2/Saturday as the
upper-level flow pattern amplifies. The prior cold front will
continue eastward with trailing high pressure remaining over the
central CONUS. Increasing flow aloft over the West will support the
development of modest lee troughing and downslope flow over the
Front Range, while offshore flow is expected over the Northeast.
Local fire-weather concerns could develop, but are not expected to
be widespread.

...Lee of the Rockies and High Plains...
As the upper ridge shifts east, westerly flow will overspread the
Rockies and High Plains beginning early Saturday. As a result, weak
lee troughing should develop and encourage breezy winds across parts
of the Front Range and the High Plains. While not overly strong,
periodic 15-20 mph surface winds and downslope drying will support
RH values as low as 20-25%. The occasional stronger winds may
overlap with areas of receptive fuels supporting a few hours of
locally elevated fire-weather conditions. However, with only
sporadic winds and marginal RH, more widespread fire-weather
concerns appear unlikely.

...Northeast...
In the wake of the cold front moving offshore, a cooler, but still
dry and breezy air mass may develop over parts of the Northeast
Saturday. As the ridge shifts eastward, flow aloft will gradually
beco*e more northwesterly and intensify. This should support dry
offshore flow over much of the East Coast. While RH values may not
be overly low, a few hours of RH below 30% appear likely given the
dry origins of the continental air mass. With little recent
rainfall, area fuels are quite dry. A few hours of locally elevated
fire-weather conditions are possible, despite marginal winds and RH.

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


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Source: SPC Day 2 Fire Weather Outlook (http://ht**://www.spc.noaa.gov/products/fire_wx/fwdy2.html)