Weather Alert in Arkansas
Flood Advisory issued May 31 at 7:50PM CDT until June 3 at 1:00PM CDT by NWS Tulsa OK
AREAS AFFECTED: Franklin, AR; Johnson, AR; Logan, AR
DESCRIPTION: ...The Flood Advisory continues for the following rivers in Arkansas... Arkansas River at Ozark Lock and Dam affecting Johnson, Franklin and Logan Counties. * WHAT...Flooding caused by excessive rainfall continues. * WHERE...Arkansas River at Ozark Lock and Dam. * WHEN...Until early Tuesday afternoon. * IMPACTS...At 355.5 feet, the river remains in its banks, but access to Okane Island may be cut off. * ADDITIONAL DETAILS... - At 7:00 PM CDT Saturday the stage was 354.4 feet. - Forecast...The river is expected to rise above action stage by Sunday afternoon and to a crest of 355.6 feet early Monday afternoon. - Action stage is 355.5 feet. - Flood stage is 357.0 feet. - http://www.weather.gov/safety/flood
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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