Weather Alert in Nebraska
Red Flag Warning issued February 25 at 12:43AM CST until February 25 at 7:00PM CST by NWS North Platte NE
AREAS AFFECTED: Frenchman Basin
DESCRIPTION: ...CRITICAL FIRE WEATHER CONDITIONS ARE LIKELY FOR SOUTHWEST NEBRASKA THIS AFTERNOON... .Strong westerly and northwesterly winds approaching 45 mph with afternoon humidity values falling to around 20 percent will support critical fire weather conditions across far southwest Nebraska Wednesday. Later in the day, a pronounced frontal boundary will arrive from the north and lead to an abrupt wind flip from westerly to more northerly. Wind gusts exceeding 25 mph are likely to continue well into the evening hours following frontal passage. There will also be a threat for isolated showers this afternoon which will produce gusty erratic winds in their vicinity. An isolated lightning strike cannot be ruled out either. The National Weather Service in North Platte has issued a Red Flag Warning for low relative humidity and gusty winds, which is in effect from 11 AM to 6 PM MST Wednesday. The Fire Weather Watch is no longer in effect. * AFFECTED AREA...Fire Weather Zone 210 Frenchman Basin. * TIMING...11 AM to 6 PM MST Wednesday * WINDS...Northwest 20 to 30 mph with gusts up to 45 mph. * RELATIVE HUMIDITY...As low as 20 to 25 percent. * TEMPERATURES...Up to 70. * LIGHTNING...Isolated, and cannot totally be ruled out. * IMPACTS...Any fire starts will have a high potential to spread rapidly and will be difficult to control.
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 Altostratus Clouds?
Home - Education - Cloud Types - Altostratus Clouds
Next Topic: Cirrocumulus Clouds
Altostratus clouds form at mid to high-level altitudes
(between 2 and 7 km) and are created by a warm, stable air mass which causes
water vapor
to condense as it rise through the atmosphere. Usually altostratus clouds are
featureless sheets characterized by a uniform color.
In some cases, wind punching through the cloud formation may give it a waved
appearance, called altostratus undulatus. Altostratus clouds
are commonly seen with other cloud formations accompanying them.
Next Topic: Cirrocumulus Clouds
Weather Topic: What are Cirrostratus Clouds?
Home - Education - Cloud Types - Cirrostratus Clouds
Next Topic: Cirrus Clouds
Cirrostratus clouds are high, thin clouds that form above
20,000 feet and are made mostly of ice crystals. They sometimes look like giant
feathers, horse tails, or curls of hair in the sky.
These clouds are pushed by the jet stream and can move at high speeds reaching
100 mph.
What do they indicate?
They indicate that a precipitation is likely within 24 hours.
Next Topic: Cirrus Clouds
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