Weather Alert in Colorado
Red Flag Warning issued August 13 at 2:50PM MDT until August 14 at 10:00PM MDT by NWS Denver CO
AREAS AFFECTED: Jackson County Below 9000 Feet; South and Southeast Grand/West Central and Southwest Boulder/Gilpin/Clear Creek/Summit/North and West Park Counties Above 9000 Feet; Grand and Summit Counties Below 9000 Feet; Central and Southeast Park County; Larimer and Boulder Counties Between 6000 and 9000 Feet; Jefferson and West Douglas Counties Above 6000 Feet/Gilpin/Clear Creek/Northeast Park Counties Below 9000 Feet; West Jackson and West Grand Counties Above 9000 Feet; South and East Jackson/Larimer/North and Northeast Grand/Northwest Boulder Counties Above 9000 Feet
DESCRIPTION: The National Weather Service in Denver has issued a Red Flag Warning for thunderstorms, which is in effect from noon to 10 PM MDT Thursday. The Fire Weather Watch is no longer in effect. * AFFECTED AREA...Fire Weather Zones 211, 212, 213, 214, 215, 216, 217 and 218. * TIMING...From noon to 10 PM MDT Thursday. * WINDS...Southwest 5 to 15 mph, but gusts to 40 mph in/near any showers and thunderstorms. * IMPACTS...Conditions will be favorable for new wildfire starts due to lightning from thunderstorms producing little rainfall. * Thunderstorms...Dry thunderstorms (storms with lightning but little rainfall) will be possible Thursday afternoon and evening.
INSTRUCTION: A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of dry thunderstorms, strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior.
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Weather Topic: What is Hail?
Home - Education - Precipitation - Hail
Next Topic: Hole Punch Clouds
Hail is a form of precipitation which is recognized by large solid balls or
clumps of ice. Hail is created by thunderstorm clouds with strong updrafts of wind.
As the hailstones remain in the updraft, ice is deposited onto them until their
weight becomes heavy enough for them to fall to the earth's surface.
Hail storms can cause significant damage to crops, aircrafts, and man-made structures,
despite the fact that the duration is usually less than ten minutes.
Next Topic: Hole Punch Clouds
Weather Topic: What are Mammatus Clouds?
Home - Education - Cloud Types - Mammatus Clouds
Next Topic: Nimbostratus Clouds
A mammatus cloud is a cloud with a unique feature which resembles
a web of pouches hanging along the base of the cloud.
In the United States, mammatus clouds tend to form in the warmer months, commonly
in the Midwest and eastern regions.
While they usually form at the bottom of a cumulonimbis cloud, they can also form
under altostratus, altocumulus, stratocumulus, and cirrus clouds. Mammatus clouds
warn that severe weather is close.
Next Topic: Nimbostratus Clouds
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