Weather Alert in Missouri
Flood Warning issued March 6 at 6:27PM CST until March 10 at 5:00AM CDT by NWS St Louis MO
AREAS AFFECTED: Jefferson, MO; St. Louis, MO
DESCRIPTION: ...The National Weather Service in St Louis has issued a Flood Warning for the following rivers in Missouri... Meramec River near Eureka. Meramec River at Valley Park. River forecasts are based on observed precipitation and forecast precipitation for the next 48 hours. * WHAT...Minor flooding is forecast. * WHERE...Meramec River near Eureka. * WHEN...From Saturday morning to late Monday night. * IMPACTS...At 22.0 feet, Willman Road near the Highway 109 bridge becomes inundated and impassable. * ADDITIONAL DETAILS... - At 6:00 PM CST Friday the stage was 15.0 feet. - Forecast...The river is expected to rise above flood stage late tomorrow morning to a crest of 22.5 feet Sunday morning. It will then fall below flood stage late Sunday evening. - Flood stage is 19.0 feet.
INSTRUCTION: Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. This product, along with additional weather and stream information, is available at https://water.noaa.gov/wfo/lsx
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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
Weather Topic: What are Stratocumulus Clouds?
Home - Education - Cloud Types - Stratocumulus Clouds
Next Topic: Stratus Clouds
Stratocumulus clouds are similar to altocumulus clouds in their
fluffy appearance, but have a slightly darker shade due to their additional mass.
A good way to distinguish the two cloud types is to hold your hand out and measure
the size of an individual cloud; if it is the size of your thumb it is generally
an altocumulus cloud, if it is the size of your hand it is generally a
stratocumulus cloud.
It is uncommon for stratocumulus clouds to produce precipitation, but if they do
it is usually a light rain or snow.
Next Topic: Stratus Clouds
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