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Smoke Call Status: |
M-F
(except holidays) @ 1300 hrs PDT |
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Issued: |
12:30 PM
Friday, April 25, 2025 |
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Discussion -
Saturday & Sunday |
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An
upper level cut off low forming along the coast today will track gradually
inland across central California tonight through Sat night before continuing
eastward into the Great Basin on Sunday as ridging builds along the coast.
Temps will remain well below normal Sat & Sun with unsettled conditions
producing abundant shower activity favoring the mountains and mixed with an
occasional isolated thunderstorm Sat & Sat night with shower activity
tapering off through the day Sunday. Overall smoke dispersion conditions will
remain active during the afternoons with some areas moderate to locally low
afternoon mixing heights in W & NW areas and moderate to very good
afternoon mixing heights further inland. Breezy SW to NW winds are expected
Sat in areas other than the Sac Vly where winds will be lighter with breezy
NW winds favoring the NE & E Sun afternoon and evening. |
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(mph) |
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(ft AGL) |
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Saturday Afternoon |
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Saturday Afternoon |
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Saturday Night |
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Saturday Night |
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Click on images to enlarge |
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Sunday Afternoon |
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Sunday Afternoon |
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Extended Outlook: |
Monday -
Wednesday |
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Upper
level ridging will continue strengthening along the coast Sun night and shift
inland Mon & Tue and further strength overhead Wed. This will bring a
general stabilizing trend to the area with temps warming and RHs lowering
through the first half of the week. Overnight thermal belts will strengthen
as well bringing moderate to poor overnight RH recoveries to slopes and
ridges as well as allowing nighttime valley inversion to strengthen. Warm
afternoon temps will support moderate to good vertical mixing during the
afternoons though outside of locally breezy channeled terrain areas and
northern ridges where NW to NE flow will prevail wind will remain on the
lighter side. |
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Helpful Resources: |
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Air
Resources Board |
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San
Joaquin Air Quality |
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AirNow Fire
and Smoke Map |
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North Zone
Predictive Services Weather Page |
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South Zone
Predictive Services Weather Page |
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NWS
California Fire Weather Page |
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NWS
Spot Forecast Request |
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This Product was developed by the Predictive Services group,
located at the North Zone Coordination Center in Redding, California |
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