Weather Alert in California
Red Flag Warning issued June 29 at 12:26PM PDT until July 1 at 8:00PM PDT by NWS Sacramento CA
AREAS AFFECTED: Eastern Portion of Shasta/Trinity NF; Burney Basin and Northeast Plateau in Shasta County Including Northwest Lassen NF north of Lassen NP; Southeast Edge Shasta/Trinity NF and Western Portions of Tehama/Glenn RU; Eastern Mendocino NF
DESCRIPTION: The National Weather Service in Sacramento has issued a Red Flag Warning for thunderstorms and strong outflow winds, which is in effect from 11 AM Monday to 8 PM PDT Tuesday. The Fire Weather Watch is no longer in effect. * Affected Area...Fire Zone 213 Eastern Portion of Shasta/Trinity NF, Fire Zone 214 Burney Basin and Northeast Plateau in Shasta County Including Northwest Lassen NF north of Lassen NP, Fire Zone 263 Southeast Edge Shasta-Trinity NF and Western Portions of Tehama-Glenn Unit and Fire Zone 279 Eastern Mendocino NF. * Thunderstorms...Isolated to scattered coverage of a mix of wet and dry thunderstorms expected. Lightning strikes may also occur outside of main precipitation cores. Highest chances for thunderstorms in the afternoon and evening hours. * Outflow Winds...Gusty and erratic outflow winds could occur near any thunderstorm development. * Impacts...Lightning can create new fire starts and may combine with gusty outflow winds to cause a fire to rapidly grow in size and intensity.
INSTRUCTION: A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of lightning from dry thunderstorms on dry fuels can contribute to new fire starts.
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Weather Topic: What are Nimbostratus Clouds?
Home - Education - Cloud Types - Nimbostratus Clouds
Next Topic: Precipitation
A nimbostratus cloud is similar to a stratus cloud in its formless,
smooth appearance. However, a nimbostratus cloud is darker than a stratus cloud,
because it is thicker.
Unlike a stratus cloud, a nimbostratus cloud typically brings with it the threat
of moderate to heavy precipitation. In some cases, the precipitation may evaporate
before reaching the ground, a phenomenon known as virga.
Next Topic: Precipitation
Weather Topic: What is Rain?
Home - Education - Precipitation - Rain
Next Topic: Shelf Clouds
Precipitation in the form of water droplets is called rain.
Rain generally has a tendency to fall with less intensity over a greater period
of time, and when rainfall is more severe it is usually less sustained.
Rain is the most common form of precipitation and happens with greater frequency
depending on the season and regional influences. Cities have been shown to have
an observable effect on rainfall, due to an effect called the urban heat island.
Compared to upwind, monthly rainfall between twenty and forty miles downwind of
cities is 30% greater.
Next Topic: Shelf Clouds
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