Weather Alert in Illinois

Recent Locations: Chicago, IL  
Current Alerts for Chicago, IL: Hydrologic Outlook

Flood Warning issued April 3 at 1:48PM CDT by NWS Paducah KY

AREAS AFFECTED: Alexander, IL; Pulaski, IL; Ballard, KY; Carlisle, KY; Fulton, KY; Hickman, KY; Mississippi, MO

DESCRIPTION: ...The National Weather Service in Paducah KY has issued a Flood Warning for the following rivers in Kentucky...Illinois...Missouri... Ohio River at Olmsted Lock and Dam affecting Ballard and Pulaski Counties. Ohio River at Cairo affecting Hickman, Ballard, Alexander, Pulaski, Mississippi, Carlisle and Fulton Counties. Ohio River at Paducah affecting Pope, McCracken, Livingston and Massac Counties. Ohio River at Smithland Dam affecting Pope and Livingston Counties. .A multi-day heavy rain is headed toward the region lasting through Saturday. Three days of rainfall is incorporated into the forecast but it still does not include the entire event. The Ohio River has started to rise and increases in crest forecasts can be expected. Now is the time to prepare for flooding. * WHAT...Moderate flooding is forecast. * WHERE...Ohio River at Cairo. * WHEN...From Saturday afternoon until further notice. * IMPACTS...At 50.0 feet, The first gate is closed at Cairo. * ADDITIONAL DETAILS... - At 1:00 PM CDT Thursday the stage was 30.7 feet. - Forecast...The river is expected to rise above flood stage Saturday afternoon and continue rising to a crest of 51.0 feet Friday, April 11. - Flood stage is 40.0 feet.

INSTRUCTION: Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Motorists should not attempt to drive around barricades or drive cars through flooded areas. Caution is urged when walking near riverbanks. Be especially cautious at night when it is harder to recognize the dangers of flooding. Additional information is available at www.weather.gov.

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Weather Topic: What are Contrails?

Home - Education - Cloud Types - Contrails

Contrails Next Topic: Cumulonimbus Clouds

A contrail is an artificial cloud, created by the passing of an aircraft.

Contrails form because water vapor in the exhaust of aircraft engines is suspended in the air under certain temperatures and humidity conditions. These contrails are called exhaust contrails.

Another type of contrail can form due to a temporary reduction in air pressure moving over the plane's surface, causing condensation. These are called aerodynamic contrails.

When you can see your breath on a cold day, it is also because of condensation. The reason contrails last longer than the condensation from your breath is because the water in contrails freezes into ice particles.

Next Topic: Cumulonimbus Clouds

Weather Topic: What are Cumulus Clouds?

Home - Education - Cloud Types - Cumulus Clouds

Cumulus Clouds Next Topic: Drizzle

Cumulus clouds are fluffy and textured with rounded tops, and may have flat bottoms. The border of a cumulus cloud is clearly defined, and can have the appearance of cotton or cauliflower.

Cumulus clouds form at low altitudes (rarely above 2 km) but can grow very tall, becoming cumulus congestus and possibly the even taller cumulonimbus clouds. When cumulus clouds become taller, they have a greater chance of producing precipitation.

Next Topic: Drizzle

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