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U.S. & Canada 00-UTC 48 Hour Surface Smoke Forecast
Map is in operation from early April through October 31
U.S. Day 1 Fire Weather Outlook
ZCZC SPCFWDDY1 ALL
FNUS21 KWNS 280804
Day 1 Fire Weather Outlook
NWS Storm Prediction Center Norman OK
0204 AM CST Sat Feb 28 2026
Valid 281200Z - 011200Z
...Synopsis...
Broad mid-level troughing over eastern Canada and the US will
gradually shift eastward today as ridging builds over the Southwest.
As the pattern shifts eastward, northwesterly flow aloft will weaken
across much of the central/northern High Plains. As high pressure
strengthens, a surface cold front will surge southward across the
central Great Plains with much cooler temperatures behind it.
...Southeast WY into northern CO and western NE...
Lingering dry downslope flow is expected across parts of the central
High Pains from southern WY into northern CO today. Northwest flow
aloft is forecast to gradually weaken as western US ridging
gradually amplifies and shifts eastward. While upper air support
should slacken through the day, a fairly strong east-west pressure
gradient should still maintain west/northwesterly low-level flow of
20-25 mph across the south Laramie Range, Cheyenne Ridge and
northern CO. With unusually warm temperatures and continued
downslope flow, RH values of 15-25% and a few hours of locally
stronger wind gusts are expected. Recent model guidance has shown an
increase in both wind speed and duration through the first half of
the day. Given very dry fuels, the meteorological conditions should
support a few hours of elevated fire-weather concerns into this
afternoon. Fire-weather conditions should end overnight into early
D2/Sunday as the aforementioned cold front moves in overnight.
...Southwest FL...
Ahead of the eastern portions of the cold front, scattered
thunderstorms are expected across parts of FL. Ongoing drought and
recent fire activity indicate receptive fuels over southwestern
parts of the Peninsula. While some rain is expected, areas that do
not receive significant precipitation may allow for some ignitions
given the potential for lightning.
..Lyons.. 02/28/2026
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U.S. Day 2 Fire Weather Outlook
ZCZC SPCFWDDY2 ALL
FNUS22 KWNS 280807
Day 2 Fire Weather Outlook
NWS Storm Prediction Center Norman OK
0207 AM CST Sat Feb 28 2026
Valid 011200Z - 021200Z
...NO CRITICAL AREAS...
...Synopsis...
Mid-level ridging is forecast to continue building over the
Southwest D2/Sunday ahead of a shortwave trough over the West Coast.
Modest westerly flow aloft may support some breezy downslope winds
in parts of NM and TX ahead of a southward moving cold front.
Widespread fire-weather concerns are not expected, though locally
dry and breezy conditions are possible.
...Eastern New Mexico into Far West TX...
With sub-tropical ridging forecast to build steadily over the
Southwest D2/Sunday, winds aloft are forecast to remain modest over
parts of the southern High Plains. However, very warm temperatures,
and high pressure to the west will favor some locally breezy surface
winds of 15-20 mph across parts of eastern NM into far west TX. Warm
temperatures will support RH of 15-20% during the afternoon. While
the modest surface winds will preclude broader concerns, the dry
conditions and locally breezy winds during the afternoon could
support some localized fire-weather conditions amid dry fuels
D2/Sunday afternoon.
..Lyons.. 02/28/2026
U.S. Day 3-8 Fire Weather Outlook
ZCZC SPCFWDD38 ALL
FNUS28 KWNS 272152
Day 3-8 Fire Weather Outlook
NWS Storm Prediction Center Norman OK
0352 PM CST Fri Feb 27 2026
Valid 011200Z - 071200Z
Zonal flow aloft evolves in the Southwest on Day 3/Sunday as surface
troughing pushes cooler air into the central US. Depending on the
extent of the arctic airmass, moisture advection via southerly flow
along the TX Gulf Coast into the southern High Plains may be
limited. Increasing heights and northwesterly flow aloft will
promote warm, dry air across the Southwest. RH values of 10-15%
combined with westerly surface winds of 10-20 mph atop dry fuels may
generate locally elevated fire weather conditions in eastern New
Mexico on Day 3/Sunday.
Through early next week, broad southwesterly flow aloft in the
Southwest and southern High Plains will evolve as a trough is
forecast to move east across CONUS. Enhanced southerly surface flow
may bring modest Gulf moisture to the Plains region, though the
extent of moisture advection is uncertain. Significant spread exists
in the timing of upper trough ejection and development of a lee
surface low. Despite model and ensemble uncertainties in the overlap
of strong winds and low RH in the Southwest (and to some extent,
parts of the southern High Plains), elevated fire weather conditions
are likely to emerge Day 4/Monday and Day 5/Tuesday.
Day 6/Wednesday - Day 8/Friday, a large upper-level trough is
forecast to dig into the Desert Southwest. Notable variance exists
in long-term model solutions in the strength and/or evolution. The
synoptic pattern could suggest the potential for fire weather
conditions, though given the overall uncertainty in the upper-level
pattern evolution, probabilities have been withheld for now.
..Elizalde-Garcia/Wendt.. 02/27/2026
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