SAN DIEGO — Strong easterly winds and low relative humidity have led to critical fire danger across Southern California for the first half of the week with winds peaking early Tuesday morning in a swirl of chaos with down trees, overturned semi-trucks, and plenty of school closures due to power shut-offs.
Wind gusts were peaked at 95 mph at Sill Hill mph in the San Diego County mountains. Sustained speeds have been between 20 and 30 mph for many areas as well. These offshore Santa Ana winds have removed moisture from the atmosphere and sunk relative humidity values, adding to the very dry conditions that can fan flames when wildfires start.
The Fire Weather Warning, also known as a Red Flag Warning that the National Weather Service issued for the inland valley and mountain locations in San Diego County expires Wednesday at 4 a.m.
This forecast model keeps the winds in place for the Inland valley to mountains through Wednesday AM. Many residents will notice multiple effects like dry skin, heightened allergies, and deteriorated air quality.
High pressure is now shifting out our region and this will allow the Santa Ana conditions to weaken. As High pressure move to the East the onshore will return by Wednesday afternoon and overnight a front from an area of Low pressure to our north will pass over San Diego giving us a chance of heavy drizzle on Thursday.
Temperatures will remain near the seasonal average.
SEASONAL (AVERAGE) DAYTIME HIGHS:
- Coastal highs near 66 to 68 degrees
- Inland valley highs near 67 degrees
- Mountain highs near 52 degrees
- Desert highs near 71 degrees
AT THE COAST:
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