U.S. Day 1 Fire Weather Outlook
ZCZC SPCFWDDY1 ALL
FNUS21 KWNS 110636
Day 1 Fire Weather Outlook
NWS Storm Prediction Center Norman OK
0136 AM CDT Fri Jul 11 2025
Valid 111200Z - 121200Z
...Synopsis...
High pressure will increase in amplitude across the western US
today, with mainly terrain driven breezes expected where fuels are
the driest.
Across portions of western Colorado, a shortwave trough will bring
isolated dry thunderstorms within a plume of shallow mid-level
moisture. Fuels within this region are critically dry with ERCs
exceeding critically dry thresholds, with fuel moisture dipping into
the single digits amid a severe drought and more than a month
without appreciable rainfall. New fire activity has been noted over
the last 24-48 hours with lightning activity. An isolated dry
thunderstorm area was maintained across this region with this
outlook.
..Thornton.. 07/11/2025
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U.S. Day 2 Fire Weather Outlook
ZCZC SPCFWDDY2 ALL
FNUS22 KWNS 110637
Day 2 Fire Weather Outlook
NWS Storm Prediction Center Norman OK
0137 AM CDT Fri Jul 11 2025
Valid 121200Z - 131200Z
...NO CRITICAL AREAS...
...Synopsis...
High pressure across the western US will continue to keep winds
mainly light and terrain driven where fuels are the driest Saturday.
Moisture will increase across west-central Colorado, with PWs
approaching 0.60-0.75". A mix of initially dry/wet thunderstorms
will be possible again, though the dry thunderstorm risk should
remain too localized to include areas with this outlook.
..Thornton.. 07/11/2025
U.S. Day 3-8 Fire Weather Outlook
ZCZC SPCFWDD38 ALL
FNUS28 KWNS 101933
Day 3-8 Fire Weather Outlook
NWS Storm Prediction Center Norman OK
0233 PM CDT Thu Jul 10 2025
Valid 121200Z - 181200Z
Upper ridging will develop across the western CONUS through the
weekend, before a mid-level trough traverses the Pacific Northwest
and northern Rockies by early next week. Thereafter, upper ridging
will briefly set in during the middle of next week before another
mid-level trough impinges on the Northwest before next weekend. The
net result will be a warming and drying trend across much of the
Interior West into the Pacific Northwest, which will augment the
curing of fuels.
The passage of the first mid-level trough will provide enough upper
support to induce dry/windy conditions across portions of the
Cascades on Day 4 (Sunday), and then farther east over the Snake
River Plain Days 5-6 (Monday-Tuesday), where 40 percent Critical
probabilities have been introduced. Isolated dry thunderstorms could
occur across portions of the Pacific Northwest into the northern and
central Rockies early next week, but the specifics of timing and
coverage (given model differences) are too unclear to warrant dry
thunderstorm probabilities at this time. Furthermore, considerable
spread exists among medium-range guidance in the placement and
timing of the next mid-level trough late next week. Given these
uncertainties, probabilities for dry/windy conditions and dry
thunderstorms have been withheld.
..Squitieri.. 07/10/2025
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