Weather Alert in Indiana
Special Weather Statement issued February 6 at 2:58PM EST by NWS Louisville KY
AREAS AFFECTED: Orange; Washington; Scott; Jefferson; Dubois; Crawford; Perry; Harrison; Floyd; Clark; Hancock; Breckinridge; Meade; Ohio; Grayson; Hardin; Bullitt; Jefferson; Oldham; Trimble; Henry; Shelby; Franklin; Scott; Harrison; Spencer; Anderson; Woodford; Fayette; Bourbon; Nicholas; Nelson; Washington; Mercer; Jessamine; Clark; Larue; Marion; Boyle; Garrard; Madison; Butler; Edmonson; Hart; Green; Taylor; Casey; Lincoln; Logan; Warren; Simpson; Allen; Barren; Monroe; Metcalfe; Adair; Russell; Cumberland; Clinton
DESCRIPTION: Another Arctic cold front will drop into the region from the north tonight. Just ahead of the front, a band of snow showers and a few snow squalls are expected to drop southward through the region. The most favored time for this activity will be between 900 PM and 4 AM EST. Much of the snow shower activity will move across central and eastern Kentucky, mainly east of the I-65 corridor. Any accumulations look to be minimal and likely under a half of an inch. However, this snow falling at night and temperatures dropping into the 20s may result in areas of slick travel tonight along with reduced visibility within the snow showers. If you have travel plans for late tonight or early Saturday, you should exercise caution and allow extra time to reach your destination.
INSTRUCTION: N/A
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Weather Topic: What is Rain?
Home - Education - Precipitation - Rain
Next Topic: Shelf Clouds
Precipitation in the form of water droplets is called rain.
Rain generally has a tendency to fall with less intensity over a greater period
of time, and when rainfall is more severe it is usually less sustained.
Rain is the most common form of precipitation and happens with greater frequency
depending on the season and regional influences. Cities have been shown to have
an observable effect on rainfall, due to an effect called the urban heat island.
Compared to upwind, monthly rainfall between twenty and forty miles downwind of
cities is 30% greater.
Next Topic: Shelf Clouds
Weather Topic: What is Sleet?
Home - Education - Precipitation - Sleet
Next Topic: Snow
Sleet is a form of precipitation in which small ice pellets are the primary
components. These ice pellets are smaller and more translucent than hailstones,
and harder than graupel. Sleet is caused by specific atmospheric conditions and
therefore typically doesn't last for extended periods of time.
The condition which leads to sleet formation requires a warmer body of air to be
wedged in between two sub-freezing bodies of air. When snow falls through a warmer
layer of air it melts, and as it falls through the next sub-freezing body of air
it freezes again, forming ice pellets known as sleet. In some cases, water
droplets don't have time to freeze before reaching the surface and the result is
freezing rain.
Next Topic: Snow
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