Weather Alert in Nebraska
Red Flag Warning issued March 21 at 2:59AM CDT until March 22 at 4:00AM CDT by NWS North Platte NE
AREAS AFFECTED: Eastern Panhandle/Crescent Lake NWR; Sandhills/Valentine NWR/Nebraska National Forest; Niobrara Valley/Fort Niobrara NWR/Samuel R McKelvie National Forest; Loup Rivers Basin; Frenchman Basin; Loess Plains
DESCRIPTION: ...CRITICAL FIRE WEATHER CONDITIONS SATURDAY AFTERNOON INTO THE OVERNIGHT HOURS... .Record high temperatures Saturday in the 90s will lead to single digit relative humidity Saturday afternoon across the area. Low relative humidity will combine with gusty westerly winds to 35 MPH Saturday afternoon, producing critical fire weather conditions. An abrupt change in wind direction to the north will commence late Saturday evening across northern Nebraska, transitioning south into the overnight. Winds with this shift in wind direction will reach up to 45 MPH overnight. * AFFECTED AREA...Fire Weather Zone 204 Eastern Panhandle/Crescent Lake NWR, Fire Weather Zone 206 Sandhills/Valentine NWR/Nebraska National Forest, Fire Weather Zone 208 Niobrara Valley/Fort Niobrara NWR/Samuel R McKelvie National Forest, Fire Weather Zone 209 Loup Rivers Basin, Fire Weather Zone 210 Frenchman Basin and Fire Weather Zone 219 Loess Plains. * TIMING...Red Flag Warning in effect from 10 AM CDT (9 AM MDT) Saturday through 4 AM CDT (3 AM MDT) Sunday morning. * WINDS...West 15 to 25 mph with gusts up to 45 mph. * RELATIVE HUMIDITY...As low as 6 percent. * TEMPERATURES...Up to 96. * LIGHTNING...None expected. * IMPACTS...Any fire starts will spread rapidly and will be difficult to control. * ADDITIONAL DETAILS...A cold front will arrive from the north late Saturday evening, producing an abrupt wind shift and gusts up to 45 mph during the late evening and overnight hours.
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 Hole Punch Clouds?
Home - Education - Cloud Types - Hole Punch Clouds
Next Topic: Mammatus Clouds
A hole punch cloud is an unusual occurrence when a disk-shaped
hole appears in a cirrostratus, cirrocumulus, or altocumulus cloud.
When part of the cloud forms ice crystals, water droplets in the surrounding area
of the cloud evaporate. The effect of this process produces a large elliptical
gap in the cloud. The hole punch cloud formation is rare, but it is not specific
to any geographic area.
Other names which have been used to describe this phenomena include fallstreak hole,
skypunch, and cloud hole.
Next Topic: Mammatus Clouds
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
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