Weather Alert in Indiana
Dense Fog Advisory issued February 16 at 2:25AM EST until February 16 at 11:00AM EST by NWS Wilmington OH
AREAS AFFECTED: Wayne; Fayette; Union; Franklin; Ripley; Dearborn; Ohio; Switzerland; Carroll; Gallatin; Boone; Kenton; Campbell; Owen; Grant; Pendleton; Bracken; Robertson; Mason; Lewis; Hardin; Mercer; Auglaize; Darke; Shelby; Logan; Union; Delaware; Miami; Champaign; Clark; Madison; Franklin; Licking; Preble; Montgomery; Greene; Fayette; Pickaway; Fairfield; Butler; Warren; Clinton; Ross; Hocking; Hamilton; Clermont; Brown; Highland; Adams; Pike; Scioto
DESCRIPTION: * WHAT...Visibility near zero at times in dense fog. Some patchy freezing fog through daybreak is possible on bridges and elevated roadways. * WHERE...Area-wide. * WHEN...Until 11 AM EST this morning. * IMPACTS...Significant visibility reductions to near zero at times will necessitate extra caution for commuters through late morning. Temperatures below freezing in many areas will increase the threat for icy patches on elevated roadways.
INSTRUCTION: Maintain safe distance between vehicles and keep an eye on your external temperature sensor. Slow down. Maintain a steady speed on elevated roads with temperatures below freezing - do not accelerate or stop quickly if at all possible.
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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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