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Smoke Call Status: |
Everyday Mon-Fri @ 1300 hrs. (except holidays) |
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Issued: |
12:30 PM
Wednesday, September 20, 2023 |
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Discussion: |
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Low pressure will affect the region Thu and
then give way to Ridging on Fri. The strongest transport winds and mixing
will occur Thu where conversely, both readings will noticeably decrease,
especially the transport wind flow. This means ventilation will lower
noticeably Fri compared to Thu. Also note the different directions forecasted
for Thu. A northerly wind flow is projected for a good portion of the area
while westerly winds show up across the Bay Area. This means the diferent
wind patterns converge along a line creating a trapping particulate scenario
somewhere between the Sac Vly and Bay Area on Thu. |
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(mph) |
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(ft AGL) |
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Thursday Afternoon |
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Thursday Afternoon |
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Thursday Night |
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Thursday Night |
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Click on images to enlarge |
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Friday Afternoon |
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Friday Afternoon |
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Extended Outlook: |
Saturday - Monday |
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Initial Ridging will give way to Pacific Troughing during
this period thus leading to increasing westerly and southerly transport
winds. Stronger horizontal transport is expected Sun into Mon and should
create a partial to full clean-out event. Some rainfall should enter into the
picture sometime late weekend into early next week, especially favoring NW
areas. |
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Helpful
Resources On-Line: |
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Air Resources Board |
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San Joaquin Air Quality |
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North Zone
Predictive Services |
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South Zone
Predictive Services |
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SPOT
Forecast Request North |
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SPOT
Forecast Request South |
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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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