Weather Alert in Iowa
Blizzard Warning issued March 14 at 9:19PM CDT until March 16 at 7:00AM CDT by NWS La Crosse WI
AREAS AFFECTED: Winneshiek; Allamakee
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, freezing rain expected. Total ice accumulations around a light glaze. For the Winter Storm Warning, heavy mixed precipitation expected. Total snow and sleet accumulations between 6 and 9 inches. Winds gusting as high as 45 mph. * WHERE...Allamakee and Winneshiek Counties. * WHEN...For the Winter Weather Advisory, from 1 AM to 1 PM CDT Sunday. For the Blizzard Warning, from 1 PM Sunday to 7 AM CDT Monday. * IMPACTS...Travel could be very difficult. Widespread blowing snow could significantly reduce visibility. The hazardous conditions could impact the Monday morning commute. Strong winds could cause tree damage.
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. In Iowa, visit 511ia.org for road conditions. In Wisconsin, visit 511wi.gov for road conditions.
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Weather Topic: What is Snow?
Home - Education - Precipitation - Snow
Next Topic: Stratocumulus Clouds
Snow is precipitation taking the form of ice crystals. Each ice crystal, or snowflake,
has unique characteristics, but all of them grow in a hexagonal structure.
Snowfall can last for sustained periods of time and result in significant buildup
of snow on the ground.
On the earth's surface, snow starts out light and powdery, but as it begins to melt
it tends to become more granular, producing small bits of ice which have the consistency of
sand. After several cycles of melting and freezing, snow can become very dense
and ice-like, commonly known as snow pack.
Next Topic: Stratocumulus Clouds
Weather Topic: What are Stratus Clouds?
Home - Education - Cloud Types - Stratus Clouds
Next Topic: Wall Clouds
Stratus clouds are similar to altostratus clouds, but form at a
lower altitude and are identified by their fog-like appearance, lacking the
distinguishing features of most clouds.
Stratus clouds are wider than most clouds, and their base has a smooth, uniform
look which is lighter in color than a nimbostratus cloud.
The presence of a stratus cloud indicates the possibility of minor precipitation,
such as drizzle, but heavier precipitation does not typically arrive in the form
of a stratus cloud.
Next Topic: Wall Clouds
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