Fire Danger Rises With Heat, Cooling by Monday

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Two days of hot temperatures have descended on Northern California, and with the weekend heat comes renewed worries about wildfire. The good news is that no major wind events are expected, so critical fire weather looks unlikely to arrive. And the blast of heat should be short-lived, with cooling returning by Monday. Still, Cal Fire and other agencies are on high alert throughout the weekend.

You can see the coastal fog bank shrinking under high pressure, and smoke from fires in southern Oregon.

The National Weather Service has issued heat warnings for much of the Bay Area through late Sunday, and sizzling temperatures are forecast regionwide, except along the immediate coast.

Even as parts of the North Bay soar towards 100 degrees, large scale trends show cooling will soon be on the way. By late Sunday a cool trough of low pressure from the northwest (pictured in blue) will begin to weaken the high pressure ridge, allowing the North Bay to cool back to seasonal normal levels by early in the week.