Weather Alert in Iowa
Flood Warning issued August 19 at 8:19PM CDT until August 20 at 9:00AM CDT by NWS La Crosse WI
AREAS AFFECTED: Allamakee, IA
DESCRIPTION: ...The Flood Warning continues for the following rivers in Iowa... Minnesota...Wisconsin... Cedar River at Charles City affecting Floyd County. Turtle Creek Near Austin 3NW affecting Mower County. Kickapoo River at Viola affecting Vernon and Richland Counties. Trempealeau River at Dodge affecting Trempealeau and Buffalo Counties. ...The Flood Warning is extended for the following rivers in Iowa... Turkey River at Elkader affecting Clayton County. Upper Iowa River at Dorchester Hwy 76 affecting Allamakee County. * WHAT...Minor flooding is occurring. * WHERE...Upper Iowa River at Dorchester Hwy 76. * WHEN...Until late tomorrow morning. * IMPACTS...At 14.0 feet, Lowland agricultural areas begin to flood. * ADDITIONAL DETAILS... - At 7:00 PM CDT Tuesday the stage was 14.2 feet. - Bankfull stage is 14.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 7:00 PM CDT Tuesday was 16.9 feet. - Forecast...The river is expected to fall below flood stage late this evening and continue falling to 8.2 feet Tuesday, August 26. - Flood stage is 14.0 feet. - Flood History...This crest compares to a previous crest of 14.2 feet on 03/24/2011. - http://www.weather.gov/safety/flood
INSTRUCTION: Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Additional river and weather information is available at www.weather.gov/lacrosse. The next statement will be issued Wednesday morning by 900 AM CDT.
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Weather Topic: What are Fractus Clouds?
Home - Education - Cloud Types - Fractus Clouds
Next Topic: Freezing Rain
A fractus cloud (scud) is a fragmented, tattered cloud which has
likely been sheared off of another cloud. They are accessory clouds, meaning they
develop from parent clouds, and are named in a way which describes the original
cloud which contained them.
Fractus clouds which have originated from cumulus clouds are referred to as
cumulus fractus, while fractus clouds which have originated from stratus clouds
are referred to as stratus fractus. Under certain conditions a fractus cloud might
merge with another cloud, or develop into a cumulus cloud, but usually a
fractus cloud seen by itself will dissipate rapidly.
They are often observed on the leading and trailing edges of storm clouds,
and are a display of wind activity.
Next Topic: Freezing Rain
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
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