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Day 1 Fire Weather Outlook  
NWS Storm Prediction Center Norman OK
1136 AM CDT Sat Jul 09 2022

Valid 091700Z - 101200Z

...CRITICAL FIRE WEATHER AREA FOR PORTIONS OF THE GREAT BASIN...

The ongoing forecast remains on track. No changes needed.

..Marsh.. 07/09/2022

.PREV DISCUSSION... /ISSUED 1250 AM CDT Sat Jul 09 2022/

...Synopsis...
Fire weather concerns will persist across parts of the Great Basin
for today. Early-morning water vapor imagery reveals a mid-level
trough moving onshore across northern CA. This feature will shift
into the northern Rockies through the day, augmenting mid and
low-level flow over the Great Basin and central Rockies in response.
The co*bination of an antecedent dry air mass, receptive fuels, and
increasing winds will result in critical to elevated fire weather
conditions.

...Great Basin...
00 UTC soundings from NV and UT sampled a very dry low-level air
mass Friday evening with RH values in the single digits. This air
mass will largely remain in place and promote afternoon RH values
near 10% as low-level trajectories continue to emanate largely from
southern CA desert and/or off the Sierra Nevada. Stronger mid and
upper-level winds were also noted in soundings along the West Coast
ahead of the approaching shortwave trough. These winds will
overspread the Great Basin by peak daytime heating, and when
co*bined with deep boundary-layer mixing, will support sustained
15-20 mph winds with frequent gusts between 25-35 mph. Guidance
continues to show increasing confidence in sustained critical
conditions across eastern NV into western and northwestern UT. Brief
critical conditions may extend into southeast ID as winds gusts to
near 30 mph, but these conditions should remain somewhat
localized/transient. Elevated conditions are probable across
northwest NV as well as central WY, but latest fuel guidance
continues to show only marginally dry fuels. 

...Central High Plains...
Localized elevated fire weather conditions appear possible this
afternoon across parts of the central High Plains, most notably
across the SD/WY/NE tri-state region where winds between 15-20 mph
are possible and RH values may fall into the low teens. However,
recent rainfall across this region has allowed ERC values to fall to
near seasonal normal, mitigating the need for additional highlights.

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