Clearpost.online It's your post, so post it!

Day 2 Fire Weather Outlook  
NWS Storm Prediction Center Norman OK
0212 PM CDT Wed Sep 07 2022

Valid 081200Z - 091200Z

...CRITICAL FIRE WEATHER AREA FOR SNAKE RIVER PLAIN...
...CRITICAL FIRE WEATHER AREA FOR PARTS OF CENTRAL NEBRASKA INTO
SOUTHEAST SOUTH DAKOTA...

The forecast remains unchanged. While there is some potential for
thunderstorms, some dry, in Wyoming, coverage will likely remain low
owing to minimal buoyancy. In the central Plains, some dry and windy
conditions are possible behind the cold front as well. There is
quite a bit of spread in guidance as to how low RH will fall.
Furthermore, conditions are expected to be brief as the front will
be moving southward.

..Wendt.. 09/07/2022

.PREV DISCUSSION... /ISSUED 0155 AM CDT Wed Sep 07 2022/

...Synopsis...
As the upper trough over the Northwest continues eastward into
Thursday, flow aloft will linger over the central/northern Rockies
and High Plains. A cold front will continue south, supporting
thunderstorms and strong gusty winds ahead of it. With very warm
temperatures and gusty winds, critical fire weather conditions are
expected across portions of the central Rockies and onto the Plains.

...Central High Plains...
Ahead of the cold front, a lee low is expected to develop across
eastern WY and western SD Thursday afternoon. Bolstered by the
increase in the surface pressure gradient and lingering flow aloft,
low-level southerly flow is forecast to increase across portions of
eastern CO, NE and into the eastern Dakotas Thursday afternoon.
Southerly winds of 20-25 mph and higher gusts are expected near the
surface low. Concurrent with anomalously hot temperatures (90-100+
F) very dry surface conditions are forecast to develop. Diurnal
minimum RH values of 7-15% within already dry fuels will support
widespread elevated and critical fire weather concerns given strong
surface winds. Fire weather concerns may linger into the evening
hours as the cold front approaches bringing a strong wind shift and
lingering gusty winds to central NE. Fire weather conditions should
gradually abate overnight as RH values recover and winds weaken. 

...Central Idaho...
Westerly winds behind the cold front will remain strong across
portions of central ID and the Snake River Valley through much of
Thursday. Sheltered from the deeper moisture farther east, low teens
to single digit RH values and 20-25 mph winds will likely support
several hours of critical fire weather concerns. Given recent robust
fire activity and expected antecedent lightning, critical fire
weather concerns are likely. 

...Dry Thunder...
Behind the front, pooled mid-level moisture should support isolated
thunderstorms across the higher terrain of central and northern WY.
Along the southern fringes of these storms, higher LCLs may favor a
drier storm mode with the potential for dry lightning strikes within
receptive fuels. What remains unclear is the coverage of drier
storms given the southward motion of the front and increasingly
cooler/humid air with time. While some risk for lightning ignitions
is possible, confidence in dry thunder probabilities remains too low
to introduce an IsoDryT area at this time.

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