Mesoanalysis during the early morning depicted an outflow boundary extending from Central Illinois into Central Iowa with a cold front extending from Northeast Iowa into Eastern Nebraska, intersecting the outflow interface near Des Moines.  An elevated bow MCS (Mesoscale Convective System) developed between Mason City and Marshalltown, and raced eastward into Eastern Iowa during the late morning and early afternoon.  This system packed high winds and heavy rain as it swept across Eastern Iowa, mainly along and north of Interstate 80.  Winds were measured at 60 to 70 mph over portions of the area, knocking down trees and limbs.  Recent rains had already saturated the ground throughout Northeast and East Central Iowa. Additional heavy rain with this system forced creeks and streams out of their banks in Buchanan County, washing out several roads.  The Little Wapsipinicon River at Fairbank was also sent out of it's banks. Doppler radar estimated rainfall rates of 2 to 3 inches per hour.  The heavy rain also caused Duck Creek in Davenport to rise to bankfull in areas, and flooded portions of the bike path and surrounding areas near Brady Street. The bow MCS also spawned two weak tornadoes, one which touched down briefly at Alburnett in Linn County, and the other at Center Junction in Jones County.

Hail in DELAWARE, IOWA
From 31-MAY-00 10:28:00 to 31-MAY-00 10:28:00 (CST)
Location: MANCHESTER
Magnitude: 0.75 
Reported by: TRAINED SPOTTER

Tornado in LINN, IOWA
From 31-MAY-00 10:12:00 to 31-MAY-00 10:12:00 (CST)
Location: ALBURNETT
Tornado F-scale: F1
Property damage: 50K
Reported by: EMERGENCY MANAGER

A tornado touched down at Alburnett causing damage.  The center section of the horse barn roof at Strand Arabian Stables was torn off.  Sheet metal from the horse barn roof littered surrounding yards, and one woman was cut by the sheet metal.  She was taken to St. Luke's Hospital where she was treated and released.  There were about 45 horses on the grounds of the stables when the tornado hit, but incredibly none were hurt.  A barn also collapsed along Lafayette Road. Ten cows were inside the barn, and one was killed. Damage was also found along East Otter Road.  A house had it's roof damaged and siding taken off, and a small shed was destroyed.  A minivan was pushed off of a driveway and had it's windows broken out.  A garage door was also pushed in on a garage.

Tornado in JONES, IOWA
From 31-MAY-00 11:00:00 to 31-MAY-00 11:00:00 (CST)
Location: CENTER JCT
Tornado F-scale: F0
Property damage: 10K
Reported by: EMERGENCY MANAGER

A tornado touched down briefly at Center Junction.  The tornado knocked down several large trees and numerous limbs, blocking a few roads.  No injuries were reported.

Flash Flood in BUCHANAN, IOWA
From 31-MAY-00 10:25:00 to 31-MAY-00 10:25:00 (CST)
Location: INDEPENDENCE
Reported by: EMERGENCY MANAGER

Thunderstorm Wind in BUCHANAN, IOWA
From 31-MAY-00 10:15:00 to 31-MAY-00 10:15:00 (CST)
Location: FAIRBANK
Magnitude: 61 M
Reported by: TRAINED SPOTTER

Flood in SCOTT, IOWA
From 31-MAY-00 11:35:00 to 31-MAY-00 11:35:00 (CST)
Location: LE CLAIRE
Reported by: GENERAL PUBLIC

Hail in SCOTT, IOWA
From 31-MAY-00 11:38:00 to 31-MAY-00 11:38:00 (CST)
Location: ELDRIDGE
Magnitude: 0.75 
Reported by: LAW ENFORCEMENT

Thunderstorm Wind in BENTON, IOWA
From 31-MAY-00 09:43:00 to 31-MAY-00 09:43:00 (CST)
Location: MT AUBURN
Magnitude: 52 M
Reported by: TRAINED SPOTTER

Lightning in SCOTT, IOWA
From 31-MAY-00 12:30:00 to 31-MAY-00 12:30:00 (CST)
Location: DAVENPORT
Property damage: 20K
Reported by: NEWSPAPER

Lightning struck a home on West 47th Street in Davenport.  Lightning struck the roof and within minutes started a fire.  The fire was confined to the attic, causing $20,000 in damage.

Flash Flood in BUCHANAN, IOWA
From 31-MAY-00 12:22:00 to 31-MAY-00 12:22:00 (CST)
Location: HAZLETON
Reported by: EMERGENCY MANAGER

Thunderstorm Wind in BUCHANAN, IOWA
From 31-MAY-00 10:10:00 to 31-MAY-00 10:10:00 (CST)
Location: FAIRBANK
Magnitude: 60 EG
Property damage: 1K
Reported by: TRAINED SPOTTER

Thunderstorm Wind in SCOTT, IOWA
From 31-MAY-00 11:45:00 to 31-MAY-00 11:45:00 (CST)
Location: DAVENPORT
Magnitude: 52 E
Reported by: GENERAL PUBLIC

Flash Flood in BUCHANAN, IOWA
From 31-MAY-00 11:10:00 to 31-MAY-00 11:10:00 (CST)
Location: FAIRBANK
Reported by: TRAINED SPOTTER