Weather Alert in Colorado
Red Flag Warning issued March 20 at 12:46PM MDT until March 21 at 10:00PM MDT by NWS Denver CO
AREAS AFFECTED: Jackson County Below 9000 Feet; Grand and Summit Counties Below 9000 Feet
DESCRIPTION: ...WIDESPREAD CRITICAL FIRE WEATHER CONDITIONS PEAKING SATURDAY... All-time record March heat, exceptionally low humidity, and periods of breezy winds will continue to drive critical fire weather conditions through Saturday. Today, the highest fire danger will be localized to the Cheyenne Ridge and vicinity where winds will be strongest. Breezy winds will become expansive on Saturday coinciding with highly anomalous heat and single-digit humidity, extending into the foothills and high mountain valleys. The National Weather Service in Denver has issued a Red Flag Warning for wind and low relative humidity, which is in effect from 11 AM to 10 PM MDT Saturday. The Fire Weather Watch is no longer in effect. * AFFECTED AREA...Fire Weather Zones 211 and 213. * TIMING...From 11 AM to 10 PM MDT Saturday. * WINDS...West 10 to 20 mph with gusts up to 35 mph. * RELATIVE HUMIDITY...As low as 7 percent. * IMPACTS...Conditions will be favorable for rapid fire spread. Avoid outdoor burning and any activity that may produce a spark and start a wildfire.
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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