Some residents of Mendocino County reported thunderstorms and a minuscule amount of moisture delivered by the decidedly unstable weather on Monday, according to the National Weather Service.
"There were trace amounts of rain reported by observers near Redwood Valley," said Scott Carroll, a meteorologist with the NWS office in Eureka, noting that a bit more moisture was reported further north.
As for reports of thunderstorms in Mendocino County on Monday, Carroll said those seemed to be "mostly in the far northeastern section of the county," and that most of the thunderstorm activity "was what we call high-based thunderstorms," which he described as typically "pretty dry."
As for the chance of more thunderstorms this week, Carroll said there was some brewing in Lake County by early Tuesday afternoon and more could develop in the "far northeastern section of Mendocino County" by Tuesday evening, but that Monday might have gotten the biggest serving of thunderstorms expected this week.
The NWS further explains in its Forecast Discussion prepared for Tuesday that: "A line of thunderstorms continues to move north and west over northern Humboldt and Del Norte counties early (Tuesday) morning. Thunderstorms are expected to redevelop into this afternoon in the interior mountains of Trinity, eastern Mendocino and Lake counties. Thunderstorms are likely throughout the week each afternoon and evening in the interior mountains, but coverage area will diminish as the week progresses. Most of these storms have been dry and high-based, although precipitable water values will gradually increase through mid-week. "
The NWS also issued an "Excessive Heat Watch" for most of inland Mendocino County through 11 p.m. Wednesday, Aug. 16, explaining that it expects "dangerously hot conditions with temperatures of 105 to 110 in much of Humboldt County as well as Northwestern Mendocino Interior, Northeastern Mendocino Interior, Southeastern Mendocino Interior, Northern Lake and Southern Lake Counties."
To avoid adverse health effects, the NWS advises residents to "drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances."
The NWS notes that "the hottest days are expected through Wednesday," and that temperatures are expected to decrease "to more average values by the end of this week as a result of the passing of the upper level ridge to the east of the region."
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