Fire Weather Outlook Discussion
Issued by NWS

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14
000
FNUS22 KWNS 260758
FWDDY2

Day 2 Fire Weather Outlook
NWS Storm Prediction Center Norman OK
0258 AM CDT Mon Jun 26 2017

Valid 271200Z - 281200Z

...CRITICAL FIRE WEATHER AREA FOR GUSTY WINDS AND LOW RH ACROSS
PORTIONS OF CENTRAL/NORTH-CENTRAL AZ...

...Synopsis...
Shortwave trough over the northern Rockies at the beginning of the
period -- 12Z Tuesday -- will progress eastward through the northern
Plains, reaching the upper MS Valley early Wednesday morning.
Farther east, a pair of phased shortwave troughs will move through
the upper trough initially over the eastern CONUS. Progression of
these shortwave troughs will act to deamplify the parent upper
trough. As a result, a largely zonal pattern is anticipated across
the CONUS by 12Z Wednesday. At the surface, high pressure will shift
eastward into OH and TN valleys while a low moves eastward across
the Dakotas. Cold front attendant to this low will move across the
northern and central High Plains.

...Southwest...Great Basin...Central Rockies...
Another day of above-average temperatures and afternoon RH values in
the single digits is anticipated across much of the western CONUS,
including portions of the Southwest, Great Basin, and central
Rockies. Some breezy winds are also anticipated, primarily a result
of the enhanced mid-level flow coupled with deep boundary-layer
mixing. Best combination of windy and dry conditions with dry fuels
is expected across portions of the central/north-central AZ.
Critical fire weather conditions are expected here with elevated to
locally critical conditions anticipated across the remainder of the
region.

...Southwest WY...
Thunderstorms are expected across much of the northern Rockies
during the afternoon. However, high storm coverage, modest storm
motions, and high PWs suggest mainly wetting rains with much of this
activity. The only exception appears to be across southwest WY where
a deep mixed boundary layer will support high cloud bases and ample
sub-cloud precipitation evaporation. Mean storm motion is this area
is also expected to be around 35-40 kt. These meteorological
conditions support increased fire danger due to isolated dry
thunderstorms.

..Mosier.. 06/26/2017

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

$$



USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.