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U.S. Day 1 Fire Weather Outlook
ZCZC SPCFWDDY1 ALL
FNUS21 KWNS 080650
Day 1 Fire Weather Outlook
NWS Storm Prediction Center Norman OK
0150 AM CDT Fri May 08 2026
Valid 081200Z - 091200Z
...Synopsis...
Elevated fire-weather highlights have been maintained and expanded
for this afternoon and evening.
...Western ND/SD into Eastern MT...
Relatively dry west-northwesterly surface winds of 15-20 MPH are
forecast over portions of the northern High Plains. Fuels here are
critically dry, with widespread ERC percentiles exceeding the
95th-98th annual percentiles. Some light overnight precipitation
will generally improve relative humidity recovery overnight, and
increasing cloud cover throughout the day may limit some of the
dryness/mixing at the surface, but relative humidity values could
still reach as low as 20-25%. While the relative humidity values may
be on the higher side, breezy winds and exceptionally dry fuels will
warrant at least Elevated highlights across the region.
..Halbert.. 05/08/2026
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U.S. Day 2 Fire Weather Outlook
ZCZC SPCFWDDY2 ALL
FNUS22 KWNS 080650
Day 2 Fire Weather Outlook
NWS Storm Prediction Center Norman OK
0150 AM CDT Fri May 08 2026
Valid 091200Z - 101200Z
...NO CRITICAL AREAS...
...Synopsis...
No fire-weather highlights are forecast for Saturday.
Generally, there will be a lack of overlap between receptive fuels
and strong/dry surface winds across much of the U.S., especially
with some recent wetting rainfall across the Central/Southern Plains
and eastward. There is some signal for 15-20 MPH winds in a
post-frontal airmass across the Dakotas, but surface relative
humidity is currently forecast to largely remain at or above 30%.
Still, given the critically dry fuels across the Northern Plains,
this area could include Elevated highlights in future updates.
..Halbert.. 05/08/2026
U.S. Day 3-8 Fire Weather Outlook
ZCZC SPCFWDD38 ALL
FNUS28 KWNS 072100
Day 3-8 Fire Weather Outlook
NWS Storm Prediction Center Norman OK
0400 PM CDT Thu May 07 2026
Valid 091200Z - 151200Z
Upper troughing will extend along the eastern U.S. and persist
through early next week as an upper-level low over eastern Canada
remains anchored. This pattern will encourage unsettled weather and
repeated chances for precipitation across portions of the Southeast
to the Mid-Atlantic. Given a widespread transition to green-up and
expected appreciable moisture return, broader fire weather concerns
may temporarily be dampened for much of the eastern U.S. through the
duration of the forecast period.
An upper ridge will prevail across the western U.S., potentially
shifting into the central U.S. by mid-week. The overall pattern may
result in a fuel drying/curing event, given above normal
temperatures and dry conditions to persist for much of the
Intermountain West. However, timely green-up phase of fuels and
lighter winds should keep broader concerns low. Localized fire
weather concerns may emerge in terrain-favored areas where stronger
winds overlap dry fuels.
Between western U.S. ridging and troughing to the east, broad
northwesterly flow over the High Plains and Upper Midwest is
expected to promote sporadic dry and windy conditions atop drying
fuels. A series of shortwaves are forecast to move along the eastern
periphery of the upper ridge on Day 3/Saturday and Day 5/Monday,
providing scattered chances of precipitation and gusty winds.
Conversely, widespread appreciable precipitation is unlikely.
Uncertainty in medium-range guidance precludes critical
probabilities at this time; however, fire weather potential should
become more evident in future outlooks.
..Elizalde-Garcia.. 05/07/2026
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