A low pressure system resided in southeastern Nebraska much of the day, slowly moving eastward towards the Iowa border.  The warm front progressed into central Iowa before stalling out in the afternoon and evening hours.  The cold front trailed back in southeastern Nebraska and down through eastern Kansas.  Weak convection began in western and northwest Iowa late in the afternoon with little to no hail or high winds, before more widespread convection fired as the low pressure center approached the Iowa-Nebraska border in the evening hours.  With the warm front stalled out and generally draped along/near Interstate 80, storms that were able to root themselves along there were the strongest and produced primarily severe or borderline severe hail and high winds.  Many hail reports were of the pea sized variety, with a handful of severe/one inch hail reports from storms to the west of Des Moines and across the northern portions of the Des Moines metro as storms moved across.

Hail in GUTHRIE, IOWA
From 30-MAR-16 18:03:00 to 30-MAR-16 18:03:00 (CST-6)
Location: FANSLERS
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency Manager reported quarter sized hail.

Hail in DALLAS, IOWA
From 30-MAR-16 18:29:00 to 30-MAR-16 18:29:00 (CST-6)
Location: DALLAS CENTER
Magnitude: 1.25 
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Dallas Center Fire Department reported hail just under ping pong ball in size mixed with larger amounts of smaller hail.

Hail in POLK, IOWA
From 30-MAR-16 19:00:00 to 30-MAR-16 19:00:00 (CST-6)
Location: ORALABOR
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported quarter sized hail in Ankeny.

Hail in CALHOUN, IOWA
From 30-MAR-16 20:53:00 to 30-MAR-16 20:53:00 (CST-6)
Location: MANSON
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported pea to nickel sized hail.

Hail in POLK, IOWA
From 30-MAR-16 18:53:00 to 30-MAR-16 18:53:00 (CST-6)
Location: ORALABOR
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported quarter sized hail in Ankeny.

Hail in POLK, IOWA
From 30-MAR-16 18:58:00 to 30-MAR-16 18:58:00 (CST-6)
Location: ANKENY
Magnitude: 1.50 
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Spotter reported quarter sized hail.

Hail in GUTHRIE, IOWA
From 30-MAR-16 18:04:00 to 30-MAR-16 18:04:00 (CST-6)
Location: HERNDON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Public reported quarter sized hail in Yale, and was relayed via the Emergency Manager.

Hail in POLK, IOWA
From 30-MAR-16 19:00:00 to 30-MAR-16 19:00:00 (CST-6)
Location: CARNEY
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported quarter sized hail in Ankeny.

Hail in POLK, IOWA
From 30-MAR-16 19:06:00 to 30-MAR-16 19:06:00 (CST-6)
Location: ORALABOR
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Spotter reported quarter sized hail.

Hail in SAC, IOWA
From 30-MAR-16 19:39:00 to 30-MAR-16 19:39:00 (CST-6)
Location: ODEBOLT
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Public reported up to quarter sized hail.  Delayed report, time estimated from radar.

Hail in CALHOUN, IOWA
From 30-MAR-16 20:05:00 to 30-MAR-16 20:05:00 (CST-6)
Location: POMEROY
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported dime to nickel sized hail.

Thunderstorm Wind in POLK, IOWA
From 30-MAR-16 19:00:00 to 30-MAR-16 19:00:00 (CST-6)
Location: CARNEY
Magnitude: 53.00 MG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported wind gusts of up to 61 mph via their home weather station.  Also reported damage to roof flashing.