Weather Alert in Iowa
Blizzard Warning issued March 15 at 1:34AM CDT until March 16 at 7:00AM CDT by NWS La Crosse WI
AREAS AFFECTED: Mitchell; Howard
DESCRIPTION: ...DANGEROUS WINTER STORM TO IMPACT THE REGION THROUGH MONDAY MORNING... .A dangerous and potentially historic winter storm will impact the region through Monday morning. Snow rates north of Interstate 90 will increase throughout the overnight. By early Sunday morning snowfall rates of 2 to 4 inches per hour are likely across portions of northern Clark and Taylor Counties. Mixed precipitation is likely near I-90 Sunday morning where freezing rain accumulations of one to three tenths of an inch of ice is likely. By Sunday afternoon, much of the area will switchover to snow with wind gusts increasing to 35 to 55 mph. This will result in widespread visibilities reductions to 1/4 mile or less at times where the Blizzard Warning is in effect. Storm total snow accumulations will likely approach all-time records in north-central Wisconsin with 18 to 36 inches of snow expected north of Interstate 94. Travel will be impossible for much of the area throughout the storm. Any travel should be reserved for emergencies only. Power outages and tree damage will be possible with the combination of heavy snow, ice, and increasing winds on Sunday. * WHAT...For the Winter Weather Advisory, mixed precipitation. Additional snow and sleet accumulations up to one inch and ice accumulations between two tenths and three tenths of an inch. Winds gusting as high as 35 mph. For the Blizzard Warning, blizzard conditions expected. Total snow accumulations between 5 and 7 inches and ice accumulations up to one tenth of an inch. Winds gusting as high as 55 mph. * WHERE...In northeast Iowa, Mitchell and Howard Counties. * WHEN...For the Winter Weather Advisory, until 10 AM CDT this morning. For the Blizzard Warning, from 10 AM this morning to 7 AM CDT Monday. * IMPACTS...Power outages and tree damage are likely due to the ice. Travel could be nearly impossible. The hazardous conditions could impact the Monday morning commute. Strong winds could cause extensive damage to trees and power lines.
INSTRUCTION: Travel should be restricted to emergencies only. If you must travel, have a winter survival kit with you. If you get stranded, stay with your vehicle. Visit 511ia.org for road conditions. Slow down and use caution while traveling. Visit 511ia.org for road conditions.
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Weather Topic: What are Contrails?
Home - Education - Cloud Types - 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
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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