FAIRFIELD — Muggy weather with warm nights and a threat of lightning could continue through Wednesday.
The National Weather Service as of Monday morning issued a red flag warning for parts of Solano County and much of the region. With a 20 percent chance of thunderstorms, the fear is that a lightning strike could touch off a fire amid the dry brush.
Mike Pechner, owner of Golden West Meteorology and a Cordelia Villages resident, said cloud cover made for a warm Sunday night. He recorded a low temperature Monday morning of 70 degrees.
“That’s the highest low of this season,” Pechner said.
He expects humid, sultry weather over the next couple of days, with high temperatures in the upper 80s to low 90s.
“The temperature will be totally dependent on how much cloud cover we have,” Pechner said.
Cloud cover and perhaps smoke from fires in the foothills made for a spectacular Monday sunrise in Fairfield-Suisun. An orange sun as of 6:45 a.m. could be seen amid a uniform sea of gray.
The sultry weather is caused by an upper-level low-pressure area just off the coast, Pechner said. The circulation around the low is counterclockwise. The southern part of the low below Southern California is picking up monsoon moisture.
That moisture is coming up off Southern California, curving northeastward over the Sierra Nevada, then coming over Solano County.
“It’s something that’s not that unusual . . . of course, the fire concern is the major problem,” Pechner said.
The upper level low should leave Wednesday night or Thursday, he said. Then the sea breeze should come back and temperatures should cool.
Solano County had weather with clouds and thunderstorms in early June. In that instance, lightning storms caused at least four fires in rural areas near Vacaville.
Reach Barry Eberling at 427-6929 or firstname.lastname@example.org. Follow him on Twitter at www.twitter.com/beberlingdr.