The active weather continued as convective storms produced a swath of moderate rainfall from central Iowa into northeast Iowa on the late on May 6. 24-hour totals ending 12Z on the 7th included Shell Rock (SHRI4), 1.40"; Newton, (NWTI4), 1.09"; Grundy Center (GNDI4), 1.00"; New Providence (NPVI4), 0.90" and Cedar Falls (CEDI4), 0.89". This system was followed by a one day break, with renewed activity developing on the afternoon of May 8. With southwest Iowa in a Moderate SPC Risk for severe storms and a Flood Watch issued for the much of the DMX HSA, strong thunderstorms north of a warm frontal boundary moved from southwest through central Iowa dropping large hail and moderate to heavy rainfall. Several swaths of 1+ inch rainfall followed the track of the strongest storms and the redevelopment of storms across already wet areas of central Iowa prompted issuance of a Flash Flood Warning for Polk and Story counties, including the Des Moines metro area. No reports of flash flooding were received as a result of the rains.   24-hour rainfall totals were highest over southwestern Iowa, but central Iowa picked up 1.68" at Ankeny (AKYI4) and Bussey (BSSI4); 1.66" at Johnston (SYTI4); 1.61" at Grundy Center (GNDI4) and 1.58" at Bedford (BEDI4). The additional  rainfall helped push crests on the Raccoon to their highest levels since May 1999, reaching 16.51 feet (19,750 cfs) at Van Meter (VNMI4), which corresponds to a return frequency of about 4 years (USGS Water Resources Investigations Report 00-4233). At Fleur Drive (DEMI4) the Raccoon crested at 14.82 feet which was in the Moderate Flood category, the only forecast point to reach this level during the month.  Scattered storms dropped up to an inch of rain over far southern Iowa on May 9, but most of this activity remained to the south of Iowa. On the afternoon of the 10th more scattered storms,  some of which quickly developed into supercells, produced brief intense rainfall over southern and far eastern parts of the HSA. At  least one report of water over Route 2 in southern Appanoose county was received by the NWS.  Totals ending at 12Z on May 11 included 1.20" at Tripoli (TRPI4); 1.17" at Bloomfield (BLMI4); 1.10" at Haven (HAVI4) and 0.93" at Pella-KCCI (SPEI4).  These storms also produced several reports of tornados and numerous reports of large hail.  Once again, flooding was minor in spite of the fact that several rivers remained above flood stage for several days.  Flooding was restricted to crop lands as rivers did not exceed flood stage by more than a foot or two.

Flood in HAMILTON, IOWA
From 09-MAY-03 06:00:00 to 14-MAY-03 12:00:00 (CST)
Property damage: 5K
Reported by: OFFICIAL NWS OBS.

Flood in HANCOCK, IOWA
From 09-MAY-03 06:00:00 to 14-MAY-03 12:00:00 (CST)
Property damage: 5K
Reported by: OFFICIAL NWS OBS.

Flood in HUMBOLDT, IOWA
From 09-MAY-03 06:00:00 to 14-MAY-03 12:00:00 (CST)
Property damage: 5K
Reported by: OFFICIAL NWS OBS.

Flood in JASPER, IOWA
From 09-MAY-03 06:00:00 to 14-MAY-03 12:00:00 (CST)
Property damage: 5K
Reported by: OFFICIAL NWS OBS.

Flood in KOSSUTH, IOWA
From 09-MAY-03 06:00:00 to 14-MAY-03 12:00:00 (CST)
Property damage: 5K
Reported by: OFFICIAL NWS OBS.

Flood in LUCAS, IOWA
From 09-MAY-03 06:00:00 to 14-MAY-03 12:00:00 (CST)
Property damage: 5K
Reported by: OFFICIAL NWS OBS.

Flood in MADISON, IOWA
From 09-MAY-03 06:00:00 to 14-MAY-03 12:00:00 (CST)
Property damage: 5K
Reported by: OFFICIAL NWS OBS.

Flood in MAHASKA, IOWA
From 09-MAY-03 06:00:00 to 14-MAY-03 12:00:00 (CST)
Property damage: 5K
Reported by: OFFICIAL NWS OBS.

Flood in BOONE, IOWA
From 09-MAY-03 06:00:00 to 14-MAY-03 12:00:00 (CST)
Property damage: 5K
Reported by: OFFICIAL NWS OBS.

Flood in CALHOUN, IOWA
From 09-MAY-03 06:00:00 to 14-MAY-03 12:00:00 (CST)
Property damage: 5K
Reported by: OFFICIAL NWS OBS.

Flood in CARROLL, IOWA
From 09-MAY-03 06:00:00 to 14-MAY-03 12:00:00 (CST)
Property damage: 5K
Reported by: OFFICIAL NWS OBS.

Flood in ADAIR, IOWA
From 09-MAY-03 06:00:00 to 14-MAY-03 12:00:00 (CST)
Property damage: 5K
Reported by: OFFICIAL NWS OBS.

Flood in MARION, IOWA
From 09-MAY-03 06:00:00 to 14-MAY-03 12:00:00 (CST)
Property damage: 5K
Reported by: OFFICIAL NWS OBS.

Flood in MARSHALL, IOWA
From 09-MAY-03 06:00:00 to 14-MAY-03 12:00:00 (CST)
Property damage: 5K
Reported by: OFFICIAL NWS OBS.

Flood in MONROE, IOWA
From 09-MAY-03 06:00:00 to 14-MAY-03 12:00:00 (CST)
Property damage: 5K
Reported by: OFFICIAL NWS OBS.

Flood in PALO ALTO, IOWA
From 09-MAY-03 06:00:00 to 14-MAY-03 12:00:00 (CST)
Property damage: 5K
Reported by: OFFICIAL NWS OBS.

Flood in POCAHONTAS, IOWA
From 09-MAY-03 06:00:00 to 14-MAY-03 12:00:00 (CST)
Property damage: 5K
Reported by: OFFICIAL NWS OBS.

Flood in POLK, IOWA
From 09-MAY-03 06:00:00 to 14-MAY-03 12:00:00 (CST)
Property damage: 5K
Reported by: OFFICIAL NWS OBS.

Flood in POWESHIEK, IOWA
From 09-MAY-03 06:00:00 to 14-MAY-03 12:00:00 (CST)
Property damage: 5K
Reported by: OFFICIAL NWS OBS.

Flood in SAC, IOWA
From 09-MAY-03 06:00:00 to 14-MAY-03 12:00:00 (CST)
Property damage: 5K
Reported by: OFFICIAL NWS OBS.

Flood in STORY, IOWA
From 09-MAY-03 06:00:00 to 14-MAY-03 12:00:00 (CST)
Property damage: 5K
Reported by: OFFICIAL NWS OBS.

Flood in WAPELLO, IOWA
From 09-MAY-03 06:00:00 to 14-MAY-03 12:00:00 (CST)
Property damage: 5K
Reported by: OFFICIAL NWS OBS.

Flood in WARREN, IOWA
From 09-MAY-03 06:00:00 to 14-MAY-03 12:00:00 (CST)
Property damage: 5K
Reported by: OFFICIAL NWS OBS.

Flood in WEBSTER, IOWA
From 09-MAY-03 06:00:00 to 14-MAY-03 12:00:00 (CST)
Property damage: 5K
Reported by: OFFICIAL NWS OBS.

Flood in WINNEBAGO, IOWA
From 09-MAY-03 06:00:00 to 14-MAY-03 12:00:00 (CST)
Property damage: 5K
Reported by: OFFICIAL NWS OBS.

Flood in WRIGHT, IOWA
From 09-MAY-03 06:00:00 to 14-MAY-03 12:00:00 (CST)
Property damage: 5K
Reported by: OFFICIAL NWS OBS.

Flood in CLARKE, IOWA
From 09-MAY-03 06:00:00 to 14-MAY-03 12:00:00 (CST)
Property damage: 5K
Reported by: OFFICIAL NWS OBS.

Flood in DALLAS, IOWA
From 09-MAY-03 06:00:00 to 14-MAY-03 12:00:00 (CST)
Property damage: 5K
Reported by: OFFICIAL NWS OBS.

Flood in EMMET, IOWA
From 09-MAY-03 06:00:00 to 14-MAY-03 12:00:00 (CST)
Property damage: 5K
Reported by: OFFICIAL NWS OBS.

Flood in GREENE, IOWA
From 09-MAY-03 06:00:00 to 14-MAY-03 12:00:00 (CST)
Property damage: 5K
Reported by: OFFICIAL NWS OBS.

Flood in GUTHRIE, IOWA
From 09-MAY-03 06:00:00 to 14-MAY-03 12:00:00 (CST)
Property damage: 5K
Reported by: OFFICIAL NWS OBS.