U.S. Alerts
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U.S. & Canada 00-UTC 48 Hour Surface Smoke Forecast
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U.S. Day 1 Fire Weather Outlook

   ZCZC SPCFWDDY1 ALL
   FNUS21 KWNS 200551

   Day 1 Fire Weather Outlook  
   NWS Storm Prediction Center Norman OK
   1251 AM CDT Tue Oct 20 2026

   Valid 201200Z - 211200Z

   ...NO CRITICAL AREAS...

   ...Synopsis...
   Fire weather concerns will remain low across CONUS today. An
   upper-level low in the northeast Pacific will push southward  today
   but remain offshore from the CA Central Coast through tonight.
   Increasing southwest flow ahead of this low will promote a broad
   diffluent pattern over the Southwest while ushering in increasing
   cloud cover and Pacific moisture into the region. This should
   mitigate significant fire potential. Surface high pressure
   encompassing much of the eastern U.S. will provide seasonable
   temperatures and dry conditions across the region, including minimum
   daytime RH around 20% in parts of the Deep South. Although drought
   stressed fuels remain across parts of the Deep South, weak surface
   pressure gradients will promote light afternoon winds reducing the
   overall fire weather threat.

   ..Williams.. 10/20/2026
      

U.S. Day 2 Fire Weather Outlook


   ZCZC SPCFWDDY2 ALL
   FNUS22 KWNS 200556

   Day 2 Fire Weather Outlook  
   NWS Storm Prediction Center Norman OK
   1256 AM CDT Tue Oct 20 2026

   Valid 211200Z - 221200Z

   ...NO CRITICAL AREAS...

   ...Synopsis...
   Fire weather concerns will remain low across CONUS D2/Wednesday. 
   An upper-level low will move onshore into the CA Central Coast
   Wednesday and Wednesday night ushering in expanding cloud cover and
   precipitation into CA, the Great Basin and the Four Corners region.
   Stagnant surface high pressure across the eastern U.S. in addition
   to an amplifying ridge aloft over the Great Plains will bring
   continued dry conditions to the Deep South. Receptive fuels will
   persist across the lower MS River Valley while further drying of the
   fuelscape occurs portions of the Southeast. However, surface winds
   are expected to be rather light at 10 mph or less which should
   reduce the overall fire weather threat.

   ..Williams.. 10/20/2026


U.S. Day 3-8 Fire Weather Outlook


   ZCZC SPCFWDD38 ALL
   FNUS28 KWNS 192135

   Day 3-8 Fire Weather Outlook  
   NWS Storm Prediction Center Norman OK
   0435 PM CDT Mon Oct 19 2026

   Valid 211200Z - 271200Z

   ...Synopsis...
   Upper ridging will continue over the central U.S. as a cut-off low
   meanders along the Atlantic coast through Day 3/Wednesday. With
   surface high pressure centered to the north and upper ridging over
   the central U.S., warm and dry conditions will prevail in the
   Southeast. Fuels across this region are expected to grow
   increasingly more receptive, particularly in the lower MS River
   Valley and southern Appalachians where forecast ERCs are portrayed
   at the 90-95th percentile. Lighter prevailing winds should keep
   broader fire weather concerns low, however. Ensemble guidance
   depicts upper ridging may transition into the eastern CONUS late in
   the forecast period, indicating the return of widespread above
   normal temperatures amid a persisting dry airmass. 

   Farther west, a closed low positioned just off the coast of western
   CA on Day 3/Wednesday will have a slow forward progression into the
   Interior West, ejecting into the Great Plains late-week/this
   weekend. This pattern should bring additional precipitation and
   cooler temperatures to much of the Intermountain West, and
   potentially provide some relief to a drying fuelscape across the
   Coast Ranges and Sierra Nevada in California. Some extended guidance
   hints at the development of additional troughing over the Southwest
   beyond Day 6/Saturday; however, low predictability yields forecast
   uncertainty in the progression of the overall pattern.

   ..Elizalde-Garcia.. 10/19/2026
      




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