ZCZC SPCFWDDY1 ALL
FNUS21 KWNS 060649
Day 1 Fire Weather Outlook
NWS Storm Prediction Center Norman OK
0149 AM CDT Thu May 06 2021
Valid 061200Z - 071200Z
Across the CONUS, broad troughing will continue in the Northeast as
the mid-level flow pattern gradually becomes more amplified. A ridge
of high pressure over the Rockies will intensify, while a shortwave
trough is forecast to move onshore across California. At the
surface, a cold front will push east through the western Great Basin
while high pressure becomes established over the central Plains.
...Red River Valley/Northern Plains...
A belt of strong mid-level flow is expected to develop over the
region on the backside of the broad trough across the northeastern
US. A weak front will move south out of Canada through the day,
bringing dry and breezy conditions to the northern Plains and upper
Midwest. North winds of 10-20 mph and surface humidity of 20-30%
will support elevated fire weather conditions.
...Great Basin and Southwest...
Ahead of the shortwave trough and cold front across the western
Great Basin, gusty southerly winds are expected to increase early in
the day. Warm temperatures in the 70s to 80s F will support deep
mixing and low surface humidity of 10-15%. Locally elevated fire
weather conditions appear possible given the favorable
meteorological overlap. However, the lack of robust fuels cast doubt
on how widespread favorable fire weather conditions may become.
Mid-level moisture ahead of the cold front will also support
isolated showers/thunderstorms from the Great Basin southeastward
into the portions of the Southwest. Dry surface conditions will
limit any precipitation from storms that do develop during the day
supporting low-end dry thunderstorm potential.