Weather Alert in Illinois
Flash Flood Warning issued June 30 at 10:39PM CDT until July 1 at 2:00AM CDT by NWS Lincoln IL
AREAS AFFECTED: Crawford, IL; Jasper, IL
DESCRIPTION: FFWILX The National Weather Service in Lincoln has issued a * Flash Flood Warning for... Southern Crawford County in east central Illinois... Southeastern Jasper County in southeastern Illinois... * Until 200 AM CDT. * At 1037 PM CDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 1.5 and 2.5 inches of rain have fallen between Newton and Oblong in a 1 hour time frame. Additional rainfall amounts of 0.5 to 1.5 inches are possible in Jasper County, with 1.5 to 2.5 inches in Crawford County. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. * Some locations that will experience flash flooding include... Robinson, Newton, Oblong, Palestine, Flat Rock, Ste. Marie, Willow Hill, Stoy, Hardinville, New Hebron, Duncanville, Crawford County Airport and Sam Parr State Park.
INSTRUCTION: Be especially cautious at night when it is harder to recognize the dangers of flooding. Please report observed flooding to local emergency services or law enforcement and request they pass this information to the National Weather Service when you can do so safely.
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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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