ZCZC SPCFWDDY1 ALL
FNUS21 KWNS 200628
Day 1 Fire Weather Outlook
NWS Storm Prediction Center Norman OK
0128 AM CDT Wed Jun 20 2018
Valid 201200Z - 211200Z
...Synopsis...
A mid-level shortwave trough will be moving onshore, across northern
California into western Nevada throughout the Day 1/Wednesday
period. In addition, a belt of stronger mid-level flow will traverse
the eastern portions of an upper-level ridge across the central
parts of the Great Basin and Four Corners region.
...Western Nevada...
Stronger winds associated with the mid-level shortwave trough moving
onshore will likely mix down to the surface aided by both a
well-mixed boundary layer and downslope winds associated with the
northern Sierra Mountains. With 10-15 mph surface winds and critical
RH values overlapping recently cured fine-fuels in this area, an
elevated delineation was maintained.
...Northwest New Mexico...
A well-mixed boundary layer will also be present in northwest New
Mexico during the Day 1/Wednesday period, allowing for modestly
strong winds associated with a 500 mb speed max traversing the upper
level ridge to mix down to the surface. Surface winds will likely
reach the 10-15 mph range, with critical RH present. Given the lack
of stronger surface winds and marginally available fuels, an
elevated delineation was not added for this area.
..Squitieri/Jirak.. 06/20/2018
...Please see www.spc.noaa.gov/fire for graphic product...
ZCZC SPCFWDDY2 ALL
FNUS22 KWNS 200722
Day 2 Fire Weather Outlook
NWS Storm Prediction Center Norman OK
0222 AM CDT Wed Jun 20 2018
Valid 211200Z - 221200Z
...Synopsis...
A short-wave trough will propagate across the Great Basin as an
upper-level ridge begins to break down during the Day 2/Thursday
period. Stronger upper-level winds will mix down towards the surface
via a well-mixed boundary layer during the late afternoon/evening
hours across much of the central/southern Great Basin into the Four
Corners area, with downslope winds also occurring along the east
side of the northern Sierra Mountains in western Nevada.
...Central to Southern Great Basin...
Widespread surface winds of at least 15 mph along with critical RH
values will be likely across much of eastern Nevada into western
Utah and northwestern Arizona for much of the afternoon and early
evening hours. Given the marginal availability of fuels and brevity
of critical winds, an elevated area was delineated, though localized
critical conditions cannot be out ruled.
...Western Nevada...
Critical RH values will likely be present during the
afternoon/evening hours east of the Northern Sierras. Mixing of
downslope winds to the surface should yield sustained surface winds
within the 10-20 mph range. Marginal availability of fine-fuels and
short duration of critical winds support elevated fire weather
conditions, though locally critical conditions may be possible.
..Squitieri/Jirak.. 06/20/2018
...Please see www.spc.noaa.gov/fire for graphic product...
