Weather Alert in Washington
Red Flag Warning issued July 29 at 2:15PM PDT until July 30 at 9:00PM PDT by NWS Pendleton OR
AREAS AFFECTED: East Washington South Central Cascade Mountains
DESCRIPTION: ...RED FLAG WARNING IN EFFECT FROM 2 PM TO 11 PM PDT TUESDAY FOR ABUNDANT LIGHTNING FOR FIRE WEATHER ZONES OR697, OR698, OR699, OR700, AND OR705... ...RED FLAG WARNING IN EFFECT FROM 1 PM WEDNESDAY TO 11 AM THURSDAY FOR ABUNDANT LIGHTNING FOR FIRE WEATHER ZONES OR700, OR704, AND OR705... ...RED FLAG WARNING IN EFFECT FROM 1 PM TO 9 PM WEDNESDAY FOR ABUNDANT LIGHTNING FOR FIRE WEATHER ZONE WA695... .Multiple rounds of showers and thunderstorms are forecast through Friday. While some of these storms may produce wetting rains, their high-based nature will increase the probability of isolated (today) to scattered (Wednesday) dry thunderstorms. Showers and thunderstorms will be capable of producing gusty and erratic outflow winds up to 60 mph. The National Weather Service in Pendleton has issued a Red Flag Warning for abundant lightning, which is in effect from 1 PM to 9 PM PDT Wednesday. The Fire Weather Watch is no longer in effect. * AFFECTED AREA...Fire Weather Zone 695 East Washington South Central Cascade Mountains. * TIMING...From 1 PM to 9 PM PDT Wednesday. * IMPACTS...Any fire that develops will catch and spread quickly. Outdoor burning is not recommended. * THUNDERSTORMS...Abundant lightning and isolated dry thunderstorms. * OUTFLOW WINDS...Gusty, erratic winds with gusts up to 50 mph.
INSTRUCTION: A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior.
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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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