Weather Alert in Oklahoma
Flood Advisory issued August 28 at 2:28AM CDT until August 30 at 1:00AM CDT by NWS Norman OK
AREAS AFFECTED: Alfalfa, OK; Woods, OK
DESCRIPTION: ...The National Weather Service in Norman has issued a Flood Advisory for the following rivers in Oklahoma... Salt Fork Arkansas River near Alva affecting Woods and Alfalfa Counties. Chikaskia River near Blackwell affecting Kay and Grant Counties. Cimarron River near Dover affecting Kingfisher and Logan Counties. * WHAT...Flooding caused by excessive rainfall is expected. * WHERE...Salt Fork Arkansas River near Alva. * WHEN...From early this morning to early Saturday morning. * IMPACTS...At 12.0 feet, Shallow flooding of lowlands to depths up to 1 foot occurs along the river in parts of northeastern Woods and northern Alfalfa counties. * ADDITIONAL DETAILS... - At 1:30 AM CDT Thursday the stage was 2.9 feet. - Bankfull stage is 11.0 feet. - Forecast...The Salt Fork Arkansas River is expected to rise to a crest of 12.4 feet just after midnight tonight. - Action stage is 10.0 feet. - Flood stage is 14.5 feet. - http://www.weather.gov/safety/flood
INSTRUCTION: If you encounter a flooded roadway, turn around and find an alternative route. Additional information is available at www.weather.gov.
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Weather Topic: What is Graupel?
Home - Education - Precipitation - Graupel
Next Topic: Hail
Graupel is a form of precipitation that is created by atmospheric conditions
which cause supercooled water droplets to contact snow crystals and freeze to
their surface.
Sometimes known as soft hail or snow pellets, graupel is delicate and easily
destroyed by touch. Whereas hail usually falls during severe weather, graupel
doesn't require such conditions to form, and can form in mild precipitation
similar to situations which produce snowfall.
Next Topic: Hail
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
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