A winter storm moved along a frontal boundary from the southern Plains and into the Great Lakes region.  During the night of 15 February mainly light mixed precipitation fell over eastern Iowa, northwest and west central Illinois, and far northeast Missouri due to a shallow layer of cold air near the surface.  Mainly snow was seen west of Dubuque along highway 20 and rain along the Illinois River.  A complete change over to all snow occurred during the afternoon of 16 February as the depth of the cold layer increased.Between 0530 and 1100 CST on 16 February two lines of elevated thunderstorms moved through the area.  These storms were prolific hail producers with numerous reports of 0.25 to 0.50 inch hail.  In some locations the hail covered the ground and reached a depth of up to one half inch.  The storms were also responsible for localized glaze accumulations of 0.25 to 0.40 inch across Henry and Bureau counties in Illinois and Des Moines county in Iowa.  Due to ambient temperatures at or below freezing, the hail froze into a thick layer of ice and caused power outages in southeast Iowa.Snow accumulations varied greatly across the area from the storm.  The heaviest accumulations were along the highway 20 corridor west of Dubuque where 4-6 inches of snow fell.  South and east of Dubuque, snowfall amounts ranged from a trace to 4 inches.  Areas south of Interstate 80 generally saw an inch or less of snowfall.

Winter Weather in BENTON, IOWA
From 16-FEB-06 06:30:00 to 16-FEB-06 09:00:00 (CST)
Property damage: 1K
Reported by: TRAINED SPOTTER

Winter Weather in LINN, IOWA
From 16-FEB-06 06:45:00 to 16-FEB-06 09:30:00 (CST)
Property damage: 1K
Reported by: TRAINED SPOTTER

Winter Weather in DELAWARE, IOWA
From 16-FEB-06 08:00:00 to 16-FEB-06 11:00:00 (CST)
Property damage: 1K
Reported by: TRAINED SPOTTER

Winter Weather in DUBUQUE, IOWA
From 16-FEB-06 09:30:00 to 16-FEB-06 11:00:00 (CST)
Property damage: 1K
Reported by: TRAINED SPOTTER

Winter Weather in BUCHANAN, IOWA
From 16-FEB-06 10:15:00 to 16-FEB-06 11:30:00 (CST)
Property damage: 1K
Reported by: TRAINED SPOTTER

Winter Weather in DES MOINES, IOWA
From 15-FEB-06 20:30:00 to 16-FEB-06 08:48:00 (CST)
Property damage: 1K
Reported by: TRAINED SPOTTER

Winter Weather in LEE, IOWA
From 15-FEB-06 20:30:00 to 16-FEB-06 11:00:00 (CST)
Property damage: 5K
Reported by: TRAINED SPOTTER

Winter Weather in VAN BUREN, IOWA
From 16-FEB-06 06:15:00 to 16-FEB-06 09:00:00 (CST)
Property damage: 5K
Reported by: TRAINED SPOTTER

Winter Weather in JONES, IOWA
From 16-FEB-06 07:00:00 to 16-FEB-06 10:30:00 (CST)
Property damage: 1K
Reported by: TRAINED SPOTTER

Winter Weather in CLINTON, IOWA
From 16-FEB-06 07:00:00 to 16-FEB-06 12:30:00 (CST)
Property damage: 1K
Reported by: TRAINED SPOTTER

Winter Weather in HENRY, IOWA
From 16-FEB-06 06:30:00 to 16-FEB-06 10:00:00 (CST)
Property damage: 5K
Reported by: TRAINED SPOTTER

Winter Weather in LOUISA, IOWA
From 16-FEB-06 06:30:00 to 16-FEB-06 11:00:00 (CST)
Property damage: 1K
Reported by: TRAINED SPOTTER

Winter Weather in WASHINGTON, IOWA
From 16-FEB-06 06:30:00 to 16-FEB-06 11:00:00 (CST)
Property damage: 1K
Reported by: TRAINED SPOTTER

Winter Weather in JEFFERSON, IOWA
From 16-FEB-06 05:30:00 to 16-FEB-06 09:30:00 (CST)
Property damage: 5K
Reported by: TRAINED SPOTTER

Winter Weather in KEOKUK, IOWA
From 16-FEB-06 06:00:00 to 16-FEB-06 09:30:00 (CST)
Property damage: 1K
Reported by: TRAINED SPOTTER

Ice Storm in DES MOINES, IOWA
From 16-FEB-06 08:48:00 to 16-FEB-06 13:00:00 (CST)
Property damage: 5K
Reported by: GENERAL PUBLIC

NWS electronic technicians reported 0.375 inch ice accumulation on KBRL ASOS

Winter Weather in JACKSON, IOWA
From 16-FEB-06 07:00:00 to 16-FEB-06 11:30:00 (CST)
Property damage: 1K
Reported by: TRAINED SPOTTER

Winter Weather in IOWA, IOWA
From 16-FEB-06 05:45:00 to 16-FEB-06 11:15:00 (CST)
Property damage: 1K
Reported by: TRAINED SPOTTER

Winter Weather in JOHNSON, IOWA
From 16-FEB-06 06:30:00 to 16-FEB-06 11:00:00 (CST)
Property damage: 1K
Reported by: TRAINED SPOTTER

Winter Weather in CEDAR, IOWA
From 16-FEB-06 06:30:00 to 16-FEB-06 11:00:00 (CST)
Property damage: 1K
Reported by: TRAINED SPOTTER

Winter Weather in MUSCATINE, IOWA
From 16-FEB-06 07:00:00 to 16-FEB-06 10:30:00 (CST)
Property damage: 1K
Reported by: TRAINED SPOTTER

Winter Weather in SCOTT, IOWA
From 16-FEB-06 08:00:00 to 16-FEB-06 10:30:00 (CST)
Property damage: 1K
Reported by: TRAINED SPOTTER