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Lake-effect Snow and Whiteout Conditions in the Great Lakes Region; Below-average Temperatures in the East

Heavy lake-effect and lake-enhanced snow will persist downwind of the Great Lakes and produce some whiteout conditions that could cause difficult travel conditions. A coastal low will produce moderate to heavy snow over parts of southern and eastern New England into the afternoon. Below average temperatures are expected across the eastern U.S., particularly with chilly morning temperatures. Read More >

Overview

March 15, 2021

A winter storm brought a mix of precipitation and gusty winds to eastern Iowa, northwest Illinois, and far northeast Missouri on Monday, March 15. Precipitation initially began as snow, but began to mix with snow and sleet during the morning as cooler air moved into to the area aloft. Eventually, precipitation changed to all snow, and continued before winding down by midday and early afternoon.

The highest snowfall amounts were reported in eastern Iowa along the Highway 20 corridor, where around 3-5 inches of snow fell. Amounts decreased to the south and east where more mixing occurred, with areas south of Interstate 80 seeing little to no snow accumulation. This was a rather precipitation heavy event outside of snow, with Moline, IL recording just under one inch of liquid.
 

Official National Weather Service Observations

Moline, IL 1.8"
Davenport, IA 1.8"
Dubuque, IA 3.8"


Cedar Rapids, Iowa City and Burlington do not measure snow as part of their climate records. Please see the Snowfall Amounts and Storm Reports sections for reported snow amounts in these locations.

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