The National Weather Service issued a red flag warning Monday, Nov. 17 for valley and mountain areas until 8 p.m. as strong northeast winds and drier than normal conditions threatened to fuel a wildfire in the valleys and mountains of San Diego County today, meteorologists said. The warning did not extend into coastal or desert areas.
A less-serious wind advisory for valley and mountains areas was also scheduled until 4 p.m. Tuesday, Nov. 18, according to the weather service. A wind advisory means winds that could make driving difficult are occurring or are about to occur.
According to the weather service, the lowest daytime humidity will be around 5 percent in valley and mountains areas today. The agency also said sustained 20- to 30-mile-an-hour winds and widespread gusts up to 45 miles and hour were likely in those areas.
A red flag warning is the weather service’s most serious fire-related warning. It is issued whenever conditions could contribute to extreme fire behavior in the region.