Weather Alert in Iowa
Winter Storm Warning issued February 19 at 9:17PM CST until February 20 at 6:00AM CST by NWS Des Moines IA
AREAS AFFECTED: Franklin; Butler; Bremer; Hamilton; Hardin; Grundy; Black Hawk; Story; Marshall; Tama; Polk
DESCRIPTION: A band of heavy snow has set up across the central portion of Iowa with snow rates of one inch or more per hour at times. A band of 5 to 8 inches of snow is expected by Friday morning from western through central to northeastern Iowa. There will be a sharp gradient of snowfall on either side of the heaviest band of snow. * WHAT...Heavy snow expected. Total snow accumulations between 5 and 9 inches. * WHERE...Portions of central and northeast Iowa. * WHEN...Until 6 AM CST Friday. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the Friday morning commute. Heavy snow with breezy winds could lead to isolated power outages.
INSTRUCTION: If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. For the latest travel conditions, check the Iowa 511 app, www.511ia.org, or dial 511.
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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
Weather Topic: What are Wall Clouds?
Home - Education - Cloud Types - Wall Clouds
Next Topic: Altocumulus Clouds
A wall cloud forms underneath the base of a cumulonimbus cloud,
and can be a hotbed for deadly tornadoes.
Wall clouds are formed by air flowing into the cumulonimbus clouds, which can
result in the wall cloud descending from the base of the cumulonimbus cloud, or
rising fractus clouds which join to the base of the storm cloud as the wall cloud
takes shape.
Wall clouds can be very large, and in the Northern Hemisphere they generally
form at the southern edge of cumulonimbus clouds.
Next Topic: Altocumulus Clouds
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