Weather Alert in California
Red Flag Warning issued June 30 at 1:28PM PDT until July 1 at 8:00PM PDT by NWS Medford OR
AREAS AFFECTED: Western Klamath National Forest; Central Siskiyou County Including Shasta Valley; Siskiyou County from the Cascade Mountains East and South to Mt Shasta
DESCRIPTION: The National Weather Service in Medford has upgraded the Fire Weather Watch to a Red Flag Warning, which is in effect from 2 PM to 8 PM PDT Tuesday. * IMPACTS...Given the long stretch of dry and hot and very conditions, lightning efficiency will be high to very high for fire starts. Any fires that develop will likely spread rapidly. * AFFECTED AREA...All of Fire Weather Zones 280, 281, and 284. * THUNDERSTORMS...Isolated to scattered thunderstorms. Lightning strikes outside of precipitation cores are possible, and cause for concern. * OUTFLOW WINDS...Gust up to 35 mph. These outflow winds can travel up to 50 miles away from the thunderstorm that caused it. * ADDITIONAL INFORMATION...Storms will tend to be isolated to start then increasing during the afternoon into the early evening hours both Monday and Tuesday. Thunderstorms are expected to trend wetter later in the afternoon and early evening both Monday and Tuesday, but remain a mix of wet and dry storms. * DETAILED URL...View the hazard area in detail at https://www.wrh.noaa.gov/map/?wfo=mfr
INSTRUCTION: Follow all fire restrictions. You can find your county's emergency sign up form as well as links to fire restrictions at weather.gov/medford/wildfire. One less spark, one less wildfire. Be sure you're signed up for your county's emergency alert system. Familiarize yourself with your emergency plan and make sure you listen to emergency services. Visit ready.gov/plan for more information. A Red Flag Warning is issued when we identify weather conditions that promote rapid spread of fire which may become life- threatening. This does not mean there is a fire. These conditions are either occurring now or will begin soon. It is important to have multiple ways to receive information from authorities.
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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
Weather Topic: What is Sleet?
Home - Education - Precipitation - Sleet
Next Topic: Snow
Sleet is a form of precipitation in which small ice pellets are the primary
components. These ice pellets are smaller and more translucent than hailstones,
and harder than graupel. Sleet is caused by specific atmospheric conditions and
therefore typically doesn't last for extended periods of time.
The condition which leads to sleet formation requires a warmer body of air to be
wedged in between two sub-freezing bodies of air. When snow falls through a warmer
layer of air it melts, and as it falls through the next sub-freezing body of air
it freezes again, forming ice pellets known as sleet. In some cases, water
droplets don't have time to freeze before reaching the surface and the result is
freezing rain.
Next Topic: Snow
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