Weather Alert in Arizona
Red Flag Warning issued June 19 at 8:23AM MST until June 21 at 8:00PM MST by NWS Flagstaff AZ
AREAS AFFECTED: Coconino Plateau; Yavapai County Mountains; Northeast Plateaus and Mesas Hwy 264 Northward; Chinle Valley; Chuska Mountains and Defiance Plateau; Little Colorado River Valley in Coconino County; Little Colorado River Valley in Navajo County; Little Colorado River Valley in Apache County; Western Mogollon Rim; Eastern Mogollon Rim; White Mountains; Black Mesa Area; Northeast Plateaus and Mesas South of Hwy 264
DESCRIPTION: MST Thu Jun 19 2025/ ...RED FLAG WARNING REMAINS IN EFFECT FROM 8 AM MST /9 AM MDT/ FRIDAY TO 8 PM MST /9 PM MDT/ SATURDAY FOR MUCH OF NORTHERN ARIZONA... * AFFECTED AREA...Locations near Alpine, Buffalo Pass, Chinle, Dilkon, Doney Park, Eagar-Springerville, Flagstaff, Forest Lakes, Ganado, Heber-Overgaard, Holbrook, Kayenta, Kykotsmovi, Pinetop- Lakeside, Prescott, Prescott Valley, Saint Johns, Seligman, Shonto, Show Low, Snowflake-Taylor, Tuba City, Valle, Whiteriver, Williams, Window Rock and Winslow. This includes portions of the Apache-Sitgreaves National Forest, Coconino National Forest, Kaibab National Forest, Prescott National Forest and Tonto National Forest. * WINDS...Southwest 20 to 30 mph with gusts 40 to 50 mph. * RELATIVE HUMIDITY...5 to 15 percent. * IMPACTS...The combination of gusty winds and low humidity can cause fire to rapidly grow in size and intensity before first responders can contain them.
INSTRUCTION: A Red Flag Warning means that critical fire weather conditions are either occurring or are imminent. A combination of strong winds and low relative humidities can contribute to extreme fire behavior. Please notify field crews of this Red Flag Warning.
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Weather Topic: What are Cirrus Clouds?
Home - Education - Cloud Types - Cirrus Clouds
Next Topic: Condensation
Cirrus clouds are high-level clouds that occur above 20,000 feet
and are composed mainly of ice crystals.
They are thin and wispy in appearance.
What do they indicate?
They are often the first sign of an approaching storm.
Next Topic: Condensation
Weather Topic: What are Contrails?
Home - Education - Cloud Types - Contrails
Next Topic: Cumulonimbus Clouds
A contrail is an artificial cloud, created by the passing of an
aircraft.
Contrails form because water vapor in the exhaust of aircraft engines is suspended
in the air under certain temperatures and humidity conditions. These contrails
are called exhaust contrails.
Another type of contrail can form due to a temporary reduction in air pressure
moving over the plane's surface, causing condensation.
These are called aerodynamic contrails.
When you can see your breath on a cold day, it is also because of condensation.
The reason contrails last longer than the condensation from your breath is
because the water in contrails freezes into ice particles.
Next Topic: Cumulonimbus Clouds
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