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"The term Diablo winds refers to winds that flow from east to west up and over the Diablo Range over the East Bay region of the San Francisco Bay area," AccuWeather Senior Meteorologist Dan ...
The Diablo wind is created by the combination of strong inland high pressure at the surface, strongly sinking air aloft, and lower pressure off the California coast. The air descending from aloft as well as from the Coast Ranges compresses as it sinks to sea level where it warms as much as 20 °F (11 °C), and loses relative humidity.
The Santa Anas are katabatic winds (Greek for "flowing downhill") arising in higher altitudes and blowing down towards sea level. [7] The National Weather Service defines Santa Ana winds as "a weather condition [in southern California] in which strong, hot, dust-bearing winds descend to the Pacific Coast around Los Angeles from inland desert regions".
Sustained winds of 25 mph (40 kph) are expected in many areas, with possible gusts topping 55 mph (88.5 kph) along mountaintops, according to the National Weather Service. During a diablo wind, common in the fall, the air is so dry that relative humidity levels plunge, drying out vegetation and making it ready to burn. The name — “diablo ...
Diablo (hot, dry, offshore wind from the northeast in the San Francisco bay) The Hawk (cold winter wind in Chicago) Jarbo Gap Wind (associated with and often referred to as a Diablo Wind; katabatic winds in the Northern Sierra Nevada in the vicinity of Jarbo Gap, often contributing to the growth of local wildfires) [8] [9]
A brief, sudden increase in the speed of the wind, usually lasting less than 20 seconds. Gusts are more transient than squalls and are followed by a lull or slowing of the wind speed. They are generally only reported by weather stations when the maximum wind speed exceeds the average wind speed by at least 10–15 knots (12–17 mph). gust front
Extreme weather is increasing in frequency and intensity — and can be scary, especially for young people. Experts explain how to talk to kids about heat waves, wildfires, tornadoes, hurricanes ...
The National Weather Service issued a "red flag warning" for northern California beginning Thursday night until Saturday night. 'Diablo wind' in California could spark fires, lead to power ...