A line of thunderstorms developed along a cold front and moved across northeast Iowa during the evening hours of March 6th. These storms produced large hail and some damaging winds. The largest hail reported was quarter sized in several locations from Nora Springs (Floyd County) northeast to Riceville (Howard County). In Davis Corners (Howard County), winds from the thunderstorms damaged several buildings and blew down some trees. Wind gusts over 70 mph were reported across southern Clayton County in Elkader, south of Littleport and in Edgewood.

Hail in FLOYD, IOWA
From 06-MAR-17 19:05:00 to 06-MAR-17 19:05:00 (CST-6)
Location: COLWELL
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in HOWARD, IOWA
From 06-MAR-17 19:15:00 to 06-MAR-17 19:15:00 (CST-6)
Location: RICEVILLE
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail in HOWARD, IOWA
From 06-MAR-17 19:15:00 to 06-MAR-17 19:15:00 (CST-6)
Location: RICEVILLE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Quarter sized hail fell in Riceville.

Hail in MITCHELL, IOWA
From 06-MAR-17 19:07:00 to 06-MAR-17 19:07:00 (CST-6)
Location: LITTLE CEDAR
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Quarter sized hail fell in Little Cedar.

Thunderstorm Wind in CLAYTON, IOWA
From 06-MAR-17 21:05:00 to 06-MAR-17 21:05:00 (CST-6)
Location: EDGEWOOD
Magnitude: 63.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

A 73 mph wind gust was measured south of Littleport.

Thunderstorm Wind in CLAYTON, IOWA
From 06-MAR-17 21:02:00 to 06-MAR-17 21:02:00 (CST-6)
Location: ELKADER
Magnitude: 63.00 MG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A 73 mph wind gust occurred in Elkader. A light post and a 12 inch diameter tree were blown down.

Thunderstorm Wind in CLAYTON, IOWA
From 06-MAR-17 20:48:00 to 06-MAR-17 20:48:00 (CST-6)
Location: MONONA
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Shingles were blown off a house in Monona.

Thunderstorm Wind in CLAYTON, IOWA
From 06-MAR-17 21:04:00 to 06-MAR-17 21:04:00 (CST-6)
Location: EDGEWOOD
Magnitude: 63.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

An estimated 73 mph wind gust occurred in Edgewood.

Thunderstorm Wind in FLOYD, IOWA
From 06-MAR-17 18:49:00 to 06-MAR-17 18:49:00 (CST-6)
Location: NORA SPGS
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

An estimated 60 mph wind gust occurred near Nora Springs.

Hail in FLOYD, IOWA
From 06-MAR-17 18:51:00 to 06-MAR-17 18:51:00 (CST-6)
Location: NORA SPGS
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Quarter sized hail fell just south of Nora Springs.

Hail in FLOYD, IOWA
From 06-MAR-17 18:52:00 to 06-MAR-17 18:52:00 (CST-6)
Location: FOLKERTS FLD ARPT
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Quarter sized hail fell in Rudd.

Hail in FLOYD, IOWA
From 06-MAR-17 18:52:00 to 06-MAR-17 18:52:00 (CST-6)
Location: AUREOLA
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Hail in FLOYD, IOWA
From 06-MAR-17 19:01:00 to 06-MAR-17 19:01:00 (CST-6)
Location: FLOYD
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Quarter sized hail fell northwest of the town of Floyd.

Hail in FLOYD, IOWA
From 06-MAR-17 19:05:00 to 06-MAR-17 19:05:00 (CST-6)
Location: FLOYD
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Quarter sized hail fell in the town of Floyd.

Thunderstorm Wind in HOWARD, IOWA
From 06-MAR-17 19:36:00 to 06-MAR-17 19:36:00 (CST-6)
Location: BONAIR
Magnitude: 52.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Newspaper

Part of a metal roof from an outbuilding was blown off east of Lime Springs.

Thunderstorm Wind in HOWARD, IOWA
From 06-MAR-17 19:30:00 to 06-MAR-17 19:30:00 (CST-6)
Location: DAVIS CORNERS
Magnitude: 50.00 EG
Property damage: 40.00K
Crop damage: 0.00K
Reported by: Newspaper

Two outbuildings were blown apart and a branch was forced through the wall of a home northeast of Davis Corners.

Hail in HOWARD, IOWA
From 06-MAR-17 19:19:00 to 06-MAR-17 19:19:00 (CST-6)
Location: ELMA
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Quarter sized hail fell south of Riceville.

Thunderstorm Wind in HOWARD, IOWA
From 06-MAR-17 19:34:00 to 06-MAR-17 19:34:00 (CST-6)
Location: BONAIR
Magnitude: 50.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Newspaper

Numerous trees were blown down and portable farm augers were tipped over southeast of Lime Springs.

Thunderstorm Wind in FLOYD, IOWA
From 06-MAR-17 18:52:00 to 06-MAR-17 18:52:00 (CST-6)
Location: FOLKERTS FLD ARPT
Magnitude: 55.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Power lines were blown down in Rudd and other portions of western Floyd County.

Thunderstorm Wind in HOWARD, IOWA
From 06-MAR-17 19:28:00 to 06-MAR-17 19:28:00 (CST-6)
Location: DAVIS CORNERS
Magnitude: 51.00 EG
Property damage: 65.00K
Crop damage: 0.00K
Reported by: Emergency Manager

In Davis Corners, trees were blown down, a shed was demolished, an outbuilding had the front overhead door blown in along with a wall and backdoor blown out. The roof on a house was totaled by the winds. Another business had a metal building with several puncture holes from flying debris and had an outbuilding blown down.

Hail in FLOYD, IOWA
From 06-MAR-17 18:59:00 to 06-MAR-17 18:59:00 (CST-6)
Location: ROSEVILLE
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue