Heavy rains during the second half of April caused several area rivers including the Mississippi River between Rock Island, Illinois and Keokuk, Iowa to not only surpass their respective flood stage, but also go over their major river stage level.  At the beginning of May, locations from Rock Island to Burlington were over their major flood stage level.  Keokuk, Iowa reached its major flood stage level during the evening of May 1st.  Other locations that were already over their major flood stage level  at the beginning of the month include: the Wapsipinicon River at De Witt, Iowa, the Iowa River at Columbus Junction, Iowa, and the Iowa River at Wapello, Iowa.  All of these locations fell below their respective major flood stage level between May 3 and May 9.
Heavy rains on May 10th and 11th caused the Mississippi River at Burlington to rise above its major flood stage level again.  It fell back below its major flood stage level during the evening of May 16th.

Flood in LOUISA, IOWA
From 01-MAY-08 00:00:00 to 02-MAY-08 21:00:00 (CST-6)
Location: GLADWIN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

The Iowa River at Columbus Junction was over its major flood stage level from 12:00 am on May 1 until 1:00 pm May 2.
The Iowa River at Wapello was over its major flood stage level from 12:00 am on May 1 until 10:00 pm May 2.

Flood in LEE, IOWA
From 01-MAY-08 18:00:00 to 06-MAY-08 18:00:00 (CST-6)
Location: WEVER
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

The Mississippi River at Keokuk was over its major flood stage level from 7:00 pm May 1 to 7:00 pm May 6.

Flood in CLINTON, IOWA
From 01-MAY-08 00:00:00 to 05-MAY-08 02:00:00 (CST-6)
Location: WHEATLAND
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

The Wapsipinicon River near De Witt was over its major flood stage level from 12:00 am on May 1 until 3:00 am May 5.

Flood in LOUISA, IOWA
From 01-MAY-08 00:00:00 to 08-MAY-08 09:00:00 (CST-6)
Location: GRANDVIEW
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

The Mississippi River at New Boston was over its major flood stage level from 12:00 am May 1 until 1:00 pm May 7.
The Mississippi River at Keithsburg was over its major flood stage level
from 12:00 am May 1 until 10:00 am May 8.

Flood in DES MOINES, IOWA
From 01-MAY-08 00:00:00 to 16-MAY-08 21:00:00 (CST-6)
Location: KINGSTON
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

The Mississippi River at Gladstone was over its major flood stage level from 12:00 am May 1 until 2:00 am May 8.
The Mississippi River at Burlington was over its major flood stage level from 12:00 am May 1 to 3:30 am May 9 and again from 4:00 pm May 12 to 10:00 pm May 16.

Flood in MUSCATINE, IOWA
From 01-MAY-08 00:00:00 to 05-MAY-08 16:00:00 (CST-6)
Location: MUSCATINE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

The Mississippi River at Illinois City was over its major flood stage level from 12:00 am May 1 until 5:00 pm May 5.
The Mississippi River at Muscatine was over its major flood stage level from 12:00 am May 1 until 4:00 am May 5.

Flood in SCOTT, IOWA
From 01-MAY-08 00:00:00 to 04-MAY-08 05:00:00 (CST-6)
Location: BUFFALO
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

The Mississippi River at Rock Island was over its major flood stage level from 12:00 am May 1 until 6:00 am May 4.

Flood in SCOTT, IOWA
From 01-MAY-08 00:00:00 to 05-MAY-08 02:00:00 (CST-6)
Location: DIXON
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

The Wapsipinicon River near De Witt was over its major flood stage level from 12:00 am on May 1 until 3:00 am May 5.