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Smoke Call Status: |
Every
day due to ARA deployment |
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Issued: |
12:30 PM
Friday, August 08, 2025 |
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Discussion -
Saturday & Sunday |
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Ridging
will be the main weather pattern during the weekend. A split flow wind flow
will be found within that weather pattern with E-NE-N wind directions
favoring northern areas and NW-W across most of the Coastal Range and
especially favoring the Bay Area. Lesser horizontal air motion will be found
broadly within the Sac Vly and portions of Trinity and the Far East during
this period thus making for lesser ventilation rates during the afternoon.
Mixing however should be abundant enough across those areas, at least
initially to keep stagnation more muted. Overnight inversions will strengthen
however. In general, look for mixed ventilation with conditions ranging from
poor to good. |
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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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Ridge
pattern is expected to break-down during the earlier half of next week,
especially Tue into Wed. This should lead to an increase in onshore winds and
therefore areawide improvements in ventilation. Mixing heights will remain
pretty good across the interior with lessening impacts from overnight
inversions although they will still be present, especially early in the
forecast period. |
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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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