U.S. Alerts
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U.S. Day 1 Fire Weather Outlook

   ZCZC SPCFWDDY1 ALL
   FNUS21 KWNS 300501

   Day 1 Fire Weather Outlook  
   NWS Storm Prediction Center Norman OK
   1201 AM CDT Thu Apr 30 2026

   Valid 301200Z - 011200Z

   ...Synopsis...
   A mid/upper-level Pacific low will move onshore the Baja Peninsula
   and transition into an eastward projecting shortwave. Downstream, a
   robust westerly 50-70 kt jet will emerge across central TX extending
   into the Southeast this afternoon. Ample Pacific moisture transport
   will encourage widespread wetting rains and a reduced fire weather
   threat across much of the central and southern High Plains. Broad
   upper troughing will become established over the Northeast, anchored
   by a persistent closed upper-level low over southern Ontario. In the
   Southeast, a weak, southward propagating weak cold front is expected
   to stall over southern GA and northern FL, increasing precipitation
   chances to where extensive drought and receptive fuels remain.
   Conversely, high pressure ahead of this front will promote a warm,
   dry airmass over Central FL where fire weather concerns reemerge
   amid a very dry fuelscape. 

   ...Central Florida...
   Surface high pressure will maintain warm and dry conditions for much
   of the FL Peninsula this afternoon ahead of a slow-moving,
   quasi-stationary cold front draped across the Gulf Coast and
   northern FL. A few thunderstorms are possible along this boundary,
   mainly along and north of the Interstate 10 corridor. Lightning
   ignitions are possible in areas that do not see sufficient rainfall,
   and resultant gusty/erratic outflow winds from thunderstorms could
   further exacerbate any new/ongoing fires. South of the front, an
   Elevated fire weather threat exists where westerly winds of up to 10
   mph will partially overlap a region of 25-35 percent RH amid drought
   stressed fuels.

   ..Elizalde-Garcia.. 04/30/2026
      

U.S. Day 2 Fire Weather Outlook


   ZCZC SPCFWDDY2 ALL
   FNUS22 KWNS 300502

   Day 2 Fire Weather Outlook  
   NWS Storm Prediction Center Norman OK
   1202 AM CDT Thu Apr 30 2026

   Valid 011200Z - 021200Z

   ...Synopsis...
   A ridge of high pressure will shift east over the Great Basin as a
   closed low develops offshore the Pacific Northwest. An amplifying
   upper trough across the Eastern Seaboard will dig southward and
   amalgamate with a subtropical shortwave traversing the Gulf Coast
   region, further enhancing westerly flow aloft for much of the
   Southeast into the Mid-Atlantic. Widespread precipitation over the
   southern Plains on Friday is expected to provide much needed relief
   to an extensively dry fuelscape. Prolonged dry and breezy conditions
   across the Florida Peninsula will continue fire weather concerns
   where drought-stressed fuels exist. 

   ...Central Florida...
   Ahead of a stalled frontal boundary draped over northern FL, steady
   westerly flow and a relatively dry airmass amid receptive fuels will
   pose a fire weather threat on Friday afternoon for the FL Peninsula.
   In response to increasing subtropical moisture aloft, high cloud
   cover will build across the Peninsula throughout the afternoon.
   However, some breaks in the clouds should allow for deeper mixing
   into a dry boundary layer. Elevated highlights have been introduced
   where RH values are expected to drop between 25-35 percent at peak
   heating while westerly winds increase to 10 mph atop dry fuels.

   ..Elizalde-Garcia.. 04/30/2026


U.S. Day 3-8 Fire Weather Outlook


   ZCZC SPCFWDD38 ALL
   FNUS28 KWNS 292134

   Day 3-8 Fire Weather Outlook  
   NWS Storm Prediction Center Norman OK
   0434 PM CDT Wed Apr 29 2026

   Valid 011200Z - 071200Z

   ...Synopsis...
   Broad troughing should remain well established across the eastern
   U.S. for the weekend into early next week while upper-level ridging
   takes hold over the Intermountain West. Elevated westerly winds and
   dry conditions will bring a fire weather threat to portions of
   central FL Days 3-4/Friday-Saturday before a cold front and
   associated band of rainfall shifts southward Saturday night into Day
   5/Sunday. A Pacific trough intrudes into the western U.S. early next
   week supporting dry, southwesterly flow across the Desert Southwest,
   Great Basin and Colorado River Basin. However, limited fuel
   receptiveness should mitigate fire weather concerns across portions
   of the Intermountain West. Persistent northwest flow aloft over the
   Northern Plains and Upper Midwest along with minimal precipitation,
   along with several passing cold fronts, could pose a fire weather
   concern next week as fuels dry. However, forecast uncertainty
   remains in timing and extent of post-frontal impacts across the
   region.

   ...Florida Peninsula...
   Fire weather concerns will persist across portions of the FL
   Peninsula Days 3-4/Friday-Saturday as a cold front and attendant
   showers and thunderstorms remain draped across the Deep South and
   Gulf Coast. Steady westerly flow over the FL Peninsula and
   relatively dry boundary layer conditions will support a fire weather
   threat amid very dry fuels on Friday. An upper-level trough
   amplifying across the eastern U.S. and deepening surface low off the
   Carolina Coast should bring enhanced westerly winds around 15 mph to
   the peninsula Day 4/Saturday. Coupled with very warm temperature
   (lower 90s F) and a deep well-mixed boundary layer, this will
   promote a fire weather threat across central FL Saturday. 40%
   critical probability areas on both Friday and Saturday were only
   slightly modified based on latest forecast guidance. The cold front
   and attendant showers and thunderstorms shift south by Day 5/Sunday,
   bringing needed rainfall to many locations. However, there could be
   some areas that evade wetting rains owing to timing of diurnal
   convective cycle and rain intensity over central FL.

   ..Williams.. 04/29/2026
      




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