Flooding in Iowa, May 22 to 31, 2004

Name: Flooding in Iowa, May 22 to 31, 2004
Start: 2004-05-22T18:00
End: 2004-05-31T23:59
Location: Iowa

May 22 to 31, 2004 · NWS DMX · 51 events in 51 counties and zones

19 inches of rain over the first week of the month. However, the second week of May brought seasonally normal rainfall.

Where it happened

Every event with a place to put it; 51 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.

Tornadoes
Tropical storms and surge
Floods
Wind
Hail
Winter weather
Heat and drought
Cold
Fire, smoke and dust
Marine and coastal
Other

Open the live radar over this ground

The toll

Deaths: 0
Injuries: 0
Property damage: $5.1 million
Crop damage: $15 million
Events: 51

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What happened

The episode as NWS DMX wrote it up.

May 2004 began rather dry with an average of only 0.19 inches of rain over the first week of the month. However, the second week of May brought seasonally normal rainfall. Heavy rain occurred during the third week of the month. May's greatest rain events came back to back. The first round of heavy rain producing thunderstorms began on the morning of the 21st and continued into the morning of the 22ns. Heaviest rains were in North Central and Northeast Iowa where storm totals included 4.75 inches at Emmetsburg, 6.22 inches at Mason City, and 5.14 inches at Decorah. Another round of storms began on the afternoon of the 22nd and continued into the morning of the 23rd. Some of the rain totals reported with this second series of storms included 6.67 inches near Ames and 4.15 inches at Marshalltown. A statewide average of 2.97 inches of rain fell from these two systems. Locally heavy rain continued to fall through much of the remainder of the month. The greatest rainfall amount occurred during the early morning hours of the 30th when 4.37 inches of rain fell at Fairfield. Damage reports were still coming in but it does appear from preliminary reports that roughly six percent of Iowa's 2004 crop was flood out. Based on a $23 per acre cost to replant it is estimated that the floods have cost Iowa farmers some $15.2 million dollars. The rainfall that occurred over the later part of May was Iowa's greatest since July 1993. Rainfall totals for the month varied form 4.01 inches at Burlington to 14.87 inches at Lansing. Radar derived estimates suggest that May rainfall was actually below normal in some areas over the far Northwest...such as Buena Vista and Van Buren Counties. However, complete rain gage reports were not yet available for these areas. Excessive rainfall produced major flooding in many areas across the state during the second half of May. This was the first widespread major flood event in many years. The heaviest rainfall occurred over the Northeastern sections of the state. Additionally, several episodes of severe thunderstorms produced large hail, high winds, and tornadoes during May. Severe weather was reported on 15 days during the month with all but 7 of Iowa's 99 counties reporting severe thunderstorm events. The month's largest severe weather outbreaks occurred on the 8th (26 counties, mostly west central to northeast) ; 17th (20 counties, mostly southwest to east central); 21st (37 counties, mostly northwest to east central); 22nd (31 counties, mostly southwest to east central) and the 24th (33 counties, mostly southwest one half). An exact tornado count is not yet available for the state, but central Iowa did report 32 tornadoes for the month with an estimated total of 50 tornadoes statewide. Nearly all were F0 and F1 intensity with minimal damage to communities. There was a tornado of F2 intensity that did produce significant damage to the communities of Bradgate and Palo (both on May 21).

What forecasters said that day

The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Des Moines, IA wrote its last area forecast discussion before the first event at May 22, 1:09 PM CST, 4 hours 51 minutes earlier.

Area forecast discussion, May 22, 1:09 PM CST, 4 hours 51 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE DES MOINES IA
209 PM CDT SAT MAY 22 2004

.DISCUSSION...
MAIN CONCERNS FOR EARLY IN THE FORECAST PERIOD WILL BE CONVECTION
THROUGH MONDAY. TODAY OUTFLOW BOUNDARY FROM MORNING CONVECTION
BEGINNING TO ERODE OVER NORTHERN MISSOURI WITH A MORE SOUTHERLY PUSH
BECOMING APPARENT. NEXT IN ROUND OF SHORTWAVES NOW ENTERING MIDWEST.
STATIONARY BOUNDARY OVER NORTHERN IOWA BEGINNING TO SAG SOUTH WITH
BOUNDARIES PRIMED TO CONVERGE. EXPLOSIVE THUNDERSTORM DEVELOPMENT
APPEARS LIKELY AND FROM 18Z OAX SOUNDING...CAP IS ERODING.
SUPERCELLS ARE LIKELY WITHIN THE FIRST SEVERAL HOURS OF INITIATION
LATE THIS AFTERNOON AND EVENING. LARGE HAIL AND TORNADOES WILL BE
THE MAIN THREATS EARLY ON. HEAVY RAIN WILL BE A CONCERN WITH THE
POSSIBILITY OF TRAINING STORMS EARLY. 65-70KT 850MB JET CRANKS UP
TONIGHT WITH GOOD CONVERGENCE OVER IOWA AND PLENTY OF MOISTURE FEED.
CONVECTION SHOULD FORM INTO AN MCS AND TRAVEL ACROSS THE
NORTHWESTERN 2/3 OF THE FORECAST AREA. WIDESPREAD 1-2 INCH AMOUNTS
LIKELY WITH LOCALLY HEAVIER POSSIBLE.  LOW TRACKS ACROSS CNTRL IA
SUNDAY...POSSIBLE THUNDERSTORMS DEVELOPING ALONG COLD FRONT ACROSS
EAST. MORE THUNDERSTORMS EXPECTED MONDAY AS NEXT SYSTEM ARRIVES.

ACTIVITY FINALLY COMES TO AN END BY TUESDAY WITH COOLER AND DRY
CONDITIONS EXPECTED. KEPT NEXT CHANCE FOR PRECIPITATION FRIDAY.
ENSEMBLES NOT IN AGREEMENT ON SHORTWAVE TOWARDS THE END OF THE WEEK
AND REMAIN CONSISTENT FOR END OF EXTENDED PERIOD.

&&

.DMX WATCHES/WARNINGS/ADVISORIES...FLOOD WATCH TONIGHT NORTH OF
INTERSTATE 80.

&&

DONAVON

Hazardous weather outlook, May 22, 2:27 PM CST, 3 hours 33 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE DES MOINES IA
327 PM CDT SAT MAY 22 2004

IAZ004>007-015>017-024>028-036>039-048>050-060>062-231100-
BLACK HAWK-BREMER-BUTLER-CERRO GORDO-EMMET-FRANKLIN-GRUNDY-HAMILTON-
HANCOCK-HARDIN-HUMBOLDT-JASPER-KOSSUTH-MARSHALL-PALO ALTO-POLK-
POWESHIEK-STORY-TAMA-WINNEBAGO-WORTH-WRIGHT-
327 PM CDT SAT MAY 22 2004

THIS HAZARDOUS WEATHER OUTLOOK IS FOR MUCH OF CENTRAL AND NORTHERN
IOWA...NORTH AND EAST OF A LINE FROM EMMETSBURG...TO DES MOINES...TO
GRINNELL.

.DAY ONE...TONIGHT

THERE IS A MODERATE RISK OF SEVERE WEATHER FROM 6 PM TONIGHT
THROUGH THE REST OF THE NIGHT.  THREATS INCLUDE VERY LARGE HAIL AND
DAMAGING STRAIGHT LINE WINDS. ISOLATED TORNADOES ARE ALSO POSSIBLE
DURING THE EVENING HOURS. FLASH FLOODING IS ALSO POSSIBLE...
ESPECIALLY ACROSS AREAS ALONG AND NORTH OF HIGHWAY 20 THAT WERE HARD
HIT BY RECENT RAINS. ISOLATED 3 TO 5 INCH RAINFALL TOTALS ARE
POSSIBLE BY SUNDAY MORNING.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

A THUNDERSTORM COMPLEX...WITH SOME EMBEDDED SEVERE
THUNDERSTORMS POSSIBLE...WILL LIKELY BE ONGOING EARLY SUNDAY
MORNING. SEVERE WEATHER IS POSSIBLE AGAIN SUNDAY AFTERNOON AND
MONDAY AFTERNOON AND NIGHT.

.SPOTTER ACTIVATION STATEMENT...

SPOTTER ACTIVATION WILL BE NEEDED TONIGHT FOR BOTH SEVERE WEATHER AND
FLOODING REPORTS. SPOTTER ACTIVATION MAY ALSO BE NEEDED AGAIN ON
SUNDAY AND MONDAY.

IAZ023-033>035-044>047-057>059-231100-
AUDUBON-BOONE-CALHOUN-CARROLL-CRAWFORD-DALLAS-GREENE-GUTHRIE-
POCAHONTAS-SAC-WEBSTER-
327 PM CDT SAT MAY 22 2004

THIS HAZARDOUS WEATHER OUTLOOK IS FOR A PORTION OF WEST
CENTRAL INTO CENTRAL IOWA...ALONG AND WEST OF A LINE FROM AUDUBON...
TO PERRY...TO POCAHONTAS.

.DAY ONE...TONIGHT

THERE IS A MODERATE RISK OF SEVERE WEATHER FROM 600 PM THROUGH
THE NIGHT. THREATS INCLUDE VERY LARGE HAIL AND DAMAGING STRAIGHT LINE
WINDS. CONDITIONS ARE ALSO VERY FAVORABLE FOR TORNADOES DURING THE
EVENING. FLASH FLOODING IS ALSO POSSIBLE...ESPECIALLY ACROSS AREAS
ALONG AND NORTH OF HIGHWAY 20 THAT WERE HARD HIT BY RECENT RAINS.
ISOLATED 3 TO 5 INCH RAINFALL TOTALS ARE POSSIBLE BY SUNDAY MORNING.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

SEVERE THUNDERSTORMS ARE POSSIBLE MONDAY AFTERNOON AND NIGHT.

.SPOTTER ACTIVATION STATEMENT...

SPOTTER ACTIVATION WILL LIKELY BE NEEDED TONIGHT FOR BOTH SEVERE
WEATHER AND FLOODING REPORTS. SPOTTER ACTIVATION MAY ALSO BE NEEDED
MONDAY AFTERNOON AND NIGHT.

IAZ073>075-084>086-092>097-231100-
APPANOOSE-DAVIS-DECATUR-LUCAS-MAHASKA-MARION-MONROE-RINGGOLD-TAYLOR-
WAPELLO-WARREN-WAYNE-
327 PM CDT SAT MAY 22 2004

THIS HAZARDOUS WEATHER OUTLOOK IS FOR MUCH OF SOUTHERN IOWA.

.DAY ONE...TONIGHT

THERE IS A MODERATE RISK OF SEVERE WEATHER FROM 600 PM TONIGHT
THROUGH THE REST OF THE NIGHT.  THREATS INCLUDE VERY LARGE HAIL AND
DAMAGING STRAIGHT LINE WINDS.  CONDITIONS ARE ALSO FAVORABLE FOR
STRONG TORNADOES.  EVENING HOURS. ISOLATED FLASH FLOODING CANNOT BE
RULED OUT...BUT IS NOT LIKELY.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

SEVERE THUNDERSTORMS ARE POSSIBLE SUNDAY AFTERNOON AND AGAIN
MONDAY AFTERNOON AND NIGHT.

.SPOTTER ACTIVATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED TONIGHT. SPOTTER ACTIVATION MAY ALSO
BE NEEDED AGAIN ON SUNDAY AFTERNOON AND MONDAY.

IAZ070>072-081>083-231100-
ADAIR-ADAMS-CASS-CLARKE-MADISON-UNION-
327 PM CDT SAT MAY 22 2004

THIS HAZARDOUS WEATHER OUTLOOK IS FOR A PORTION OF SOUTHERN IOWA.

.DAY ONE...TONIGHT

THERE IS A MODERATE RISK OF SEVERE WEATHER FROM 600 PM THIS
EVENING THROUGH THE REST OF THE NIGHT.  THREATS INCLUDE VERY LARGE
HAIL AND DAMAGING STRAIGHT LINE WINDS. CONDITIONS ARE ALSO VERY
FAVORABLE FOR STRONG TORNADOES DURING THE EVENING. ISOLATED FLASH
FLOODING CANNOT BE RULED OUT...BUT IS NOT LIKELY.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

SEVERE WEATHER IS POSSIBLE MONDAY AFTERNOON AND NIGHT.

.SPOTTER ACTIVATION STATEMENT...

SPOTTER ACTIVATION WILL LIKELY BE NEEDED TONIGHT. SPOTTER ACTIVATION
MAY ALSO BE NEEDED MONDAY AFTERNOON AND NIGHT.

In the hours before

Local storm report, May 22, 4:41 PM CST, 1 hour 19 minutes before

PRELIMINARY LOCAL STORM REPORT ... SUMMARY
NATIONAL WEATHER SERVICE DES MOINES IA
541 PM CDT SAT MAY 22 2004

..TIME...   ...EVENT...     ...CITY LOCATION...      ...LAT.LON...
..DATE...   ....MAG....     ..COUNTY LOCATION...ST.. ...SOURCE....
            ..REMARKS..

1115 AM     HAIL             BRITT                   43.10N 93.80W
05/21/2004  0.88 INCH        HANCOCK            IA   PUBLIC

1125 AM     HAIL             5 NW NORTHWOOD          43.50N 93.29W
05/21/2004  1.00 INCH        WORTH              IA   LAW ENFORCEMENT

1125 AM     HAIL             BRITT                   43.10N 93.80W
05/21/2004  1.00 INCH        HANCOCK            IA   TRAINED SPOTTER

1130 AM     HAIL             2 E RUTHVEN             43.13N 94.86W
05/21/2004  1.75 INCH        PALO ALTO          IA   BROADCAST MEDIA

            REPORT RECEIVED FROM KICD RADIO

1131 AM     HAIL             RUTHVEN                 43.13N 94.90W
05/21/2004  1.00 INCH        PALO ALTO          IA   LAW ENFORCEMENT

1140 AM     HAIL             1 S NORTHWOOD           43.43N 93.22W
05/21/2004  0.75 INCH        WORTH              IA   TRAINED SPOTTER

1235 PM     HAIL             3 W GREENE              42.90N 92.86W
05/21/2004  0.75 INCH        BUTLER             IA   TRAINED SPOTTER

0152 PM     HAIL             STEAMBOAT ROCK          42.41N 93.07W
05/21/2004  0.88 INCH        HARDIN             IA   TRAINED SPOTTER

            REPORTED BY TRAINED SPOTTER.

0220 PM     HAIL             WEBSTER CITY            42.46N 93.82W
05/21/2004  1.00 INCH        HAMILTON           IA   TRAINED SPOTTER

0221 PM     HAIL             2 E DOWS                42.66N 93.46W
05/21/2004  0.75 INCH        FRANKLIN           IA   TRAINED SPOTTER

0228 PM     TORNADO          2 W HOLLAND             42.40N 92.84W
05/21/2004                   GRUNDY             IA   LAW ENFORCEMENT

0231 PM     HAIL             SE POPEJOY              42.59N 93.43W
05/21/2004  0.88 INCH        FRANKLIN           IA   TRAINED SPOTTER

0232 PM     TORNADO          3 W HOLLAND             42.40N 92.86W
05/21/2004                   GRUNDY             IA   AMATEUR RADIO

0232 PM     TORNADO          1 E HOLLAND             42.40N 92.78W
05/21/2004                   GRUNDY             IA   AMATEUR RADIO

            CORRECTION ON LOCATION...ORIGINAL REPORT HAD 3 WEST OF
            HOLLAND AND IT SHOULD BE 1 EAST OF HOLLAND.

0238 PM     TORNADO          3 N GRUNDY CENTER       42.41N 92.77W
05/21/2004                   GRUNDY             IA   LAW ENFORCEMENT

            TORNADO CROSSING HIGHWAY 14 WITH DEBRIS. STATE PATROL
            REPORT.

0242 PM     HAIL             DIKE                    42.46N 92.63W
05/21/2004  0.88 INCH        GRUNDY             IA   AMATEUR RADIO

0242 PM     TORNADO          4 NE GRUNDY CENTER      42.40N 92.72W
05/21/2004                   GRUNDY             IA   LAW ENFORCEMENT

            STATE PATROL REPORT OF TWO SIMULATNEOUS TORNADOES.

0249 PM     TORNADO          7 SW DIKE               42.39N 92.73W
05/21/2004                   GRUNDY             IA   TRAINED SPOTTER

            MOVING NORTHEAST TOWARD DIKE.

0250 PM     HAIL             ALDEN                   42.51N 93.38W
05/21/2004  1.00 INCH        HARDIN             IA   TRAINED SPOTTER

0253 PM     HAIL             2 NW DIKE               42.48N 92.66W
05/21/2004  1.75 INCH        GRUNDY             IA   LAW ENFORCEMENT

0253 PM     TSTM WND DMG     9 E POPEJOY             42.59N 93.25W
05/21/2004                   FRANKLIN           IA   PUBLIC

            OUTBUILDINGS DAMAGED. TREES DOWN.

0300 PM     HAIL             ALDEN                   42.51N 93.38W
05/21/2004  1.00 INCH        HARDIN             IA   LAW ENFORCEMENT

0306 PM     HAIL             GRUNDY CENTER           42.36N 92.77W
05/21/2004  0.88 INCH        GRUNDY             IA   TRAINED SPOTTER

0315 PM     TORNADO          10 W GRUNDY CENTER      42.36N 92.97W
05/21/2004                   GRUNDY             IA   AMATEUR RADIO

            ON STATE HIGHWAY 175

0315 PM     HAIL             TRAER                   42.19N 92.46W
05/21/2004  1.25 INCH        TAMA               IA   TRAINED SPOTTER

0316 PM     HAIL             TRAER                   42.19N 92.46W
05/21/2004  1.00 INCH        TAMA               IA   LAW ENFORCEMENT

0317 PM     HAIL             DIKE                    42.46N 92.63W
05/21/2004  1.00 INCH        GRUNDY             IA   TRAINED SPOTTER

0321 PM     TORNADO          3 S WATERLOO            42.45N 92.35W
05/21/2004                   BLACK HAWK         IA   PUBLIC

0321 PM     HAIL             WATERLOO                42.49N 92.35W
05/21/2004  1.00 INCH        BLACK HAWK         IA   TRAINED SPOTTER

            NICKEL TO QUARTER SIZED HAIL REPORTED BY TRAINED SPOTTER.

0321 PM     HAIL             WATERLOO                42.49N 92.35W
05/21/2004  1.00 INCH        BLACK HAWK         IA   TRAINED SPOTTER

0322 PM     TORNADO          5 NW GRUNDY CENTER      42.41N 92.84W
05/21/2004                   GRUNDY             IA   AMATEUR RADIO

0330 PM     HAIL             WATERLOO                42.49N 92.35W
05/21/2004  1.75 INCH        BLACK HAWK         IA   BROADCAST MEDIA

0333 PM     TSTM WND GST     4 NW CEDAR FALLS        42.56N 92.51W
05/21/2004  60 MPH           BLACK HAWK         IA   LAW ENFORCEMENT

0335 PM     TSTM WND DMG     EVANSDALE               42.46N 92.28W
05/21/2004                   BLACK HAWK         IA   AMATEUR RADIO

            TREES DOWN ON LAFAYETTE ST.

0341 PM     HAIL             WATERLOO                42.49N 92.35W
05/21/2004  0.88 INCH        BLACK HAWK         IA   LAW ENFORCEMENT

0342 PM     HAIL             GRUNDY CENTER           42.36N 92.77W
05/21/2004  1.75 INCH        GRUNDY             IA   LAW ENFORCEMENT

            HIGHWAY 175 WEST OF GRUNDY CENTER

0345 PM     HAIL             1 SE RAYMOND            42.46N 92.21W
05/21/2004  0.88 INCH        BLACK HAWK         IA   EMERGENCY MNGR

0345 PM     HAIL             4 SE WATERLOO           42.45N 92.30W
05/21/2004  0.88 INCH        BLACK HAWK         IA   EMERGENCY MNGR

            ESTIMATED 4 MI SE OF WATERLOO, MM65, I380

0404 PM     HAIL             WATERLOO                42.49N 92.35W
05/21/2004  0.75 INCH        BLACK HAWK         IA   TRAINED SPOTTER

0410 PM     TSTM WND DMG     2 N TRAER               42.22N 92.46W
05/21/2004                   TAMA               IA   TRAINED SPOTTER

            NUMEROUS TREES DOWN 1-2 MI NORTH OF TRAER

0416 PM     HAIL             TRAER                   42.19N 92.46W
05/21/2004  1.00 INCH        TAMA               IA   TRAINED SPOTTER

0420 PM     HAIL             2 NW DYSART             42.19N 92.34W
05/21/2004  0.88 INCH        TAMA               IA   TRAINED SPOTTER

0423 PM     TSTM WND GST     3 N CLUTIER             42.12N 92.40W
05/21/2004  60 MPH           TAMA               IA   TRAINED SPOTTER

0539 PM     HAIL             5 N MESERVEY            42.98N 93.46W
05/21/2004  1.00 INCH        CERRO GORDO        IA   TRAINED SPOTTER

0555 PM     HAIL             CLEAR LAKE              43.14N 93.37W
05/21/2004  1.00 INCH        CERRO GORDO        IA   NWS EMPLOYEE

0557 PM     HAIL             2 E PLAINFIELD          42.84N 92.50W
05/21/2004  1.00 INCH        BREMER             IA   TRAINED SPOTTER

            DELAYED REPORT.

0600 PM     HAIL             1 SSW GRUNDY CENTER     42.36N 92.78W
05/21/2004  0.75 INCH        GRUNDY             IA   TRAINED SPOTTER

0602 PM     HAIL             N CLEAR LAKE            43.13N 93.38W
05/21/2004  0.88 INCH        CERRO GORDO        IA   TRAINED SPOTTER

0602 PM     HAIL             GRUNDY CENTER           42.36N 92.77W
05/21/2004  1.75 INCH        GRUNDY             IA   LAW ENFORCEMENT

            WEST SIDE OF CITY.

0607 PM     HAIL             5 NNE MESERVEY          42.97N 93.42W
05/21/2004  0.88 INCH        CERRO GORDO        IA   TRAINED SPOTTER

0609 PM     HAIL             2 E PLAINFIELD          42.84N 92.50W
05/21/2004  1.00 INCH        BREMER             IA   TRAINED SPOTTER

0610 PM     TORNADO          1 E ROLFE               42.81N 94.53W
05/21/2004                   POCAHONTAS         IA   LAW ENFORCEMENT

            RELAYED VIA AMATEUR RADIO.

0610 PM     TORNADO          ROLFE                   42.81N 94.53W
05/21/2004                   POCAHONTAS         IA   LAW ENFORCEMENT

            THREE TORNADOES. NUMEROUS INJURIES. CONSIDERABLE PROPERTY
            DAMAGE.

0615 PM     FLOOD            ALGONA                  43.07N 94.23W
05/21/2004                   KOSSUTH            IA   EMERGENCY MNGR

            ROADS UNDERWATER THROUGHOUT SOUTHERN KOSSUTH COUNTY. 3
            FEET OF WATER OVER SEVERAL ROADS. CARS STALLED ALONG
            HIGHWAY 18 IN ALGONA.

0622 PM     TORNADO          2 E ROLFE               42.81N 94.49W
05/21/2004                   POCAHONTAS         IA   AMATEUR RADIO

0623 PM     TORNADO          BRADGATE                42.80N 94.42W
05/21/2004                   HUMBOLDT           IA   BROADCAST MEDIA

            HOMES DAMAGED AND INJURIES.

0640 PM     HAIL             4 SW ALGONA             43.03N 94.29W
05/21/2004  1.00 INCH        KOSSUTH            IA   EMERGENCY MNGR

            FIELDS AND DITCHES FLOODED DUE TO HEAVY RAIN.

0646 PM     HAIL             1 S ROLFE               42.80N 94.53W
05/21/2004  0.75 INCH        POCAHONTAS         IA   STORM CHASER

            RELAYED VIA AMATEUR RADIO.

0652 PM     HAIL             4 N NEW HARTFORD        42.62N 92.63W
05/21/2004  1.00 INCH        BUTLER             IA   TRAINED SPOTTER

0655 PM     HAIL             RENWICK                 42.83N 93.98W
05/21/2004  1.00 INCH        HUMBOLDT           IA   STORM CHASER

0712 PM     HAIL             KANAWHA                 42.93N 93.79W
05/21/2004  0.88 INCH        HANCOCK            IA   TRAINED SPOTTER

0726 PM     FLOOD            6 SW MASON CITY         43.09N 93.28W
05/21/2004                   CERRO GORDO        IA   AMATEUR RADIO

            WATER COVERING ROADS. VISIBLE FROM INTERSTATE 35.

0730 PM     TORNADO          6 NW CLARION            42.79N 93.82W
05/21/2004                   WRIGHT             IA   PUBLIC

            RELAYED FROM LAW ENFORCEMENT. DELAYED REPORT.

0730 PM     TSTM WND GST     4 W CLARION             42.73N 93.81W
05/21/2004  60 MPH           WRIGHT             IA   LAW ENFORCEMENT

            DELAYED REPORT.

0733 PM     FLOOD            GOODELL                 42.92N 93.61W
05/21/2004                   HANCOCK            IA   AMATEUR RADIO

            WATER COVERING ROADS AND FIELDS.

0735 PM     HAIL             NNW CLARION             42.73N 93.73W
05/21/2004  0.88 INCH        WRIGHT             IA   LAW ENFORCEMENT

            DELAYED REPORT.

0801 PM     FLOOD            GOODELL                 42.92N 93.61W
05/21/2004                   HANCOCK            IA   TRAINED SPOTTER

            WATER OVER 130TH STREET AT HIGHWAY 69.

0803 PM     FLOOD            S MASON CITY            43.15N 93.20W
05/21/2004                   CERRO GORDO        IA   LAW ENFORCEMENT

            WATER OVER ROADS OVER SOUTHERN PART OF CERRO GORDO
            COUNTY. ALONG HIGHWAY 65, 2 TO 3 INCHES DEEP AND CLIMBING
            BETWEEN THE AVENUE OF THE SAINTS AND ROCKWELL.

0803 PM     HEAVY RAIN       N ROCKWELL              42.99N 93.19W
05/21/2004  2.50 INCH        CERRO GORDO        IA   TRAINED SPOTTER

            IN LESS THAN ONE HOUR.

0805 PM     TSTM WND DMG     4 S DOWS                42.60N 93.50W
05/21/2004                   WRIGHT             IA   EMERGENCY MNGR

            BARN AND GRAIN BINDS DESTROYED

0815 PM     FLASH FLOOD      4 N CLARKSVILLE         42.84N 92.67W
05/21/2004                   BUTLER             IA   LAW ENFORCEMENT

            WATER OVER ROAD ... UNKNOWN DEPTH

0819 PM     TSTM WND GST     4 W WAVERLY             42.73N 92.55W
05/21/2004  60 MPH           BREMER             IA   TRAINED SPOTTER

0823 PM     TSTM WND GST     WAVERLY                 42.73N 92.47W
05/21/2004  60 MPH           BREMER             IA   TRAINED SPOTTER

0835 PM     FLOOD            WAVERLY                 42.73N 92.47W
05/21/2004                   BREMER             IA   TRAINED SPOTTER

            STREET FLOODING. 3 TO 6 INCHES OF STANDING WATER.

0850 PM     TSTM WND GST     1 SE READLYN            42.69N 92.21W
05/21/2004  60 MPH           BREMER             IA   TRAINED SPOTTER

0852 PM     FLASH FLOOD      1 NW FREDERIKA          42.89N 92.32W
05/21/2004                   BREMER             IA   PUBLIC

            CORRECTION TO PREVIOUS REPORT...BREMER COUNTY...1 1/2
            FOOT WATER AND DEBRIS OVER HIGHWAY 63

0943 PM     FLASH FLOOD      ALLISON                 42.75N 92.80W
05/21/2004                   BUTLER             IA   EMERGENCY MNGR

            BUTLER COUNTY FLOOD WATERS OVER LESSER MAINTAINED COUNTY
            ROADS AND CULVERTS...MAIN ROADS NOT FLOODED

0943 PM     TSTM WND DMG     WAVERLY                 42.73N 92.47W
05/21/2004                   BREMER             IA   EMERGENCY MNGR

            WAVERLY WITHOUT POWER DUE TO SEVERE THUNDERSTORM
            LIGHTNING AND WIND DAMAGE

1033 PM     FLOOD            2 N SHELL ROCK          42.74N 92.58W
05/21/2004                   BUTLER             IA   TRAINED SPOTTER

            ON COUNTY ROAD T63, DITCHES AND SEVERAL FIELDS FULL WITH
            WATER. DRIVEWAYS COVERED WITH WATER. FEW STREETS IN NEW
            HARTFORD COVERED UNDER 2 TO 4 INCHES OF WATER.

1045 PM     FLASH FLOOD      CLARKSVILLE             42.78N 92.67W
05/21/2004                   BUTLER             IA   FIRE DEPT/RESCUE

            FLOODING OCCURRED ON COUNTY ROADS WITH SOME GRAVEL ROADS
            WASHED OUT.

1059 PM     HAIL             MALLARD                 42.94N 94.68W
05/21/2004  0.75 INCH        PALO ALTO          IA   BROADCAST MEDIA

1102 PM     HAIL
           MANLY                   43.29N 93.20W
05/21/2004  1.00 INCH        WORTH              IA   BROADCAST MEDIA

1120 PM     FLASH FLOOD      ROCKWELL                42.98N 93.19W
05/21/2004                   CERRO GORDO        IA   LAW ENFORCEMENT

            NUMEROUS ROADS FLOODED WITH AFFECTED AREA EXPANDING INTO
            SOUTHWEST PORTION OF COUNTY. SOME GRAVEL ROADS WASHED OUT
            IN PAST HOUR.

1135 PM     FLASH FLOOD      MASON CITY              43.15N 93.20W
05/21/2004                   CERRO GORDO        IA   EMERGENCY MNGR

            EVACUATIONS OCCURRING DUE TO RAPID FLOODING. DETAILS
            UNKNOWN.

1220 AM     FLASH FLOOD      JOICE                   43.36N 93.46W
05/22/2004                   WORTH              IA   LAW ENFORCEMENT

            MAIN STREET FLOODED.

1220 AM     FLASH FLOOD      2 E HANLONTOWN          43.28N 93.34W
05/22/2004                   WORTH              IA   LAW ENFORCEMENT

            WATER FLOWING OVER COUNTY ROADS ADJACENT TO I-35 IN
            SOUTHERN 10 MILES OF COUNTY.

1235 AM     FLASH FLOOD      EAGLE GROVE             42.67N 93.90W
05/22/2004                   WRIGHT             IA   BROADCAST MEDIA

            2-3 FEET OF WATER ON SOME SIDE STREETS.

0144 AM     TSTM WND GST     TRIPOLI                 42.81N 92.26W
05/22/2004  64 MPH           BREMER             IA   MESONET

0508 AM     TSTM WND GST     ATLANTIC                41.40N 95.01W
05/22/2004  60 MPH           CASS               IA   AWOS

&&
ROLFE TORNADO WAS RATED F1.  BRADGATE F2.   FULL EVENT NARRATIVE WILL
BE ISSUED LATER THIS EVENING.

KJ

Local storm report, May 22, 5:34 PM CST, 26 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
634 PM CDT SAT MAY 22 2004

..TIME...   ...EVENT...     ...CITY LOCATION...      ...LAT.LON...
..DATE...   ....MAG....     ..COUNTY LOCATION...ST.. ...SOURCE....
            ..REMARKS..

0632 PM     HAIL             7 SW BOONE              41.98N 93.98W
05/22/2004  0.88 INCH        BOONE              IA   LAW ENFORCEMENT

&&

GRAMS

Local storm report, May 22, 5:44 PM CST, 16 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
644 PM CDT SAT MAY 22 2004

..TIME...   ...EVENT...     ...CITY LOCATION...      ...LAT.LON...
..DATE...   ....MAG....     ..COUNTY LOCATION...ST.. ...SOURCE....
            ..REMARKS..

0642 PM     HAIL             N TEMPLETON             41.92N 94.94W
05/22/2004  0.88 INCH        CARROLL            IA   TRAINED SPOTTER

            ONE INCH OF RAIN IN 20 MINUTES.

&&

GRAMS

Local storm report, May 22, 5:55 PM CST, 5 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
655 PM CDT SAT MAY 22 2004

..TIME...   ...EVENT...     ...CITY LOCATION...      ...LAT.LON...
..DATE...   ....MAG....     ..COUNTY LOCATION...ST.. ...SOURCE....
            ..REMARKS..

0635 PM     TSTM WND GST     MANNING                 41.91N 95.06W
05/22/2004  80 MPH           CARROLL            IA   TRAINED SPOTTER

            ALONG HIGHWAY 141.

&&

GRAMS

Local storm report, May 22, 5:59 PM CST, 1 minute before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
659 PM CDT SAT MAY 22 2004

..TIME...   ...EVENT...     ...CITY LOCATION...      ...LAT.LON...
..DATE...   ....MAG....     ..COUNTY LOCATION...ST.. ...SOURCE....
            ..REMARKS..

0658 PM     HAIL             2 N MADRID              41.90N 93.82W
05/22/2004  2.75 INCH        BOONE              IA   LAW ENFORCEMENT

&&

GRAMS

The radar

The national radar mosaic for the moment the first event began.

Open the radar archive at this moment

Event by event

51 flood. Local standard time, as filed.

Flood, Adair

When: May 22, 6:00 PM CST to May 31, 11:59 PM CST
Where: Adair forecast zone
Property damage: $100,000
Crop damage: $298,000
Reported by: OFFICIAL NWS OBS.
Coordinates: 41.331, -94.471 (the zone’s center; the record gives no point)

Flood, Adams

When: May 22, 6:00 PM CST to May 31, 11:59 PM CST
Where: Adams forecast zone
Property damage: $100,000
Crop damage: $298,000
Reported by: OFFICIAL NWS OBS.
Coordinates: 41.029, -94.699 (the zone’s center; the record gives no point)

Flood, Appanoose

When: May 22, 6:00 PM CST to May 31, 11:59 PM CST
Where: Appanoose forecast zone
Property damage: $100,000
Crop damage: $298,000
Reported by: OFFICIAL NWS OBS.
Coordinates: 40.743, -92.869 (the zone’s center; the record gives no point)

Flood, Audubon

When: May 22, 6:00 PM CST to May 31, 11:59 PM CST
Where: Audubon forecast zone
Property damage: $100,000
Crop damage: $298,000
Reported by: OFFICIAL NWS OBS.
Coordinates: 41.685, -94.906 (the zone’s center; the record gives no point)

Flood, Black Hawk

When: May 22, 6:00 PM CST to May 31, 11:59 PM CST
Where: Black Hawk forecast zone
Property damage: $100,000
Crop damage: $298,000
Reported by: OFFICIAL NWS OBS.
Coordinates: 42.470, -92.309 (the zone’s center; the record gives no point)

Flood, Boone

When: May 22, 6:00 PM CST to May 31, 11:59 PM CST
Where: Boone forecast zone
Property damage: $100,000
Crop damage: $298,000
Reported by: OFFICIAL NWS OBS.
Coordinates: 42.037, -93.932 (the zone’s center; the record gives no point)

Flood, Bremer

When: May 22, 6:00 PM CST to May 31, 11:59 PM CST
Where: Bremer forecast zone
Property damage: $100,000
Crop damage: $298,000
Reported by: OFFICIAL NWS OBS.
Coordinates: 42.775, -92.318 (the zone’s center; the record gives no point)

Flood, Butler

When: May 22, 6:00 PM CST to May 31, 11:59 PM CST
Where: Butler forecast zone
Property damage: $100,000
Crop damage: $298,000
Reported by: OFFICIAL NWS OBS.
Coordinates: 42.732, -92.790 (the zone’s center; the record gives no point)

Flood, Calhoun

When: May 22, 6:00 PM CST to May 31, 11:59 PM CST
Where: Calhoun forecast zone
Property damage: $100,000
Crop damage: $298,000
Reported by: OFFICIAL NWS OBS.
Coordinates: 42.385, -94.640 (the zone’s center; the record gives no point)

Flood, Carroll

When: May 22, 6:00 PM CST to May 31, 11:59 PM CST
Where: Carroll forecast zone
Property damage: $100,000
Crop damage: $298,000
Reported by: OFFICIAL NWS OBS.
Coordinates: 42.036, -94.861 (the zone’s center; the record gives no point)

Flood, Cass

When: May 22, 6:00 PM CST to May 31, 11:59 PM CST
Where: Cass forecast zone
Property damage: $100,000
Crop damage: $298,000
Reported by: OFFICIAL NWS OBS.
Coordinates: 41.332, -94.928 (the zone’s center; the record gives no point)

Flood, Cerro Gordo

When: May 22, 6:00 PM CST to May 31, 11:59 PM CST
Where: Cerro Gordo forecast zone
Property damage: $100,000
Crop damage: $298,000
Reported by: OFFICIAL NWS OBS.
Coordinates: 43.082, -93.261 (the zone’s center; the record gives no point)

Flood, Clarke

When: May 22, 6:00 PM CST to May 31, 11:59 PM CST
Where: Clarke forecast zone
Property damage: $100,000
Crop damage: $298,000
Reported by: OFFICIAL NWS OBS.
Coordinates: 41.029, -93.785 (the zone’s center; the record gives no point)

Flood, Crawford

When: May 22, 6:00 PM CST to May 31, 11:59 PM CST
Where: Crawford forecast zone
Property damage: $100,000
Crop damage: $298,000
Reported by: OFFICIAL NWS OBS.
Coordinates: 42.037, -95.382 (the zone’s center; the record gives no point)

Flood, Dallas

When: May 22, 6:00 PM CST to May 31, 11:59 PM CST
Where: Dallas forecast zone
Property damage: $100,000
Crop damage: $298,000
Reported by: OFFICIAL NWS OBS.
Coordinates: 41.685, -94.040 (the zone’s center; the record gives no point)

Flood, Davis

When: May 22, 6:00 PM CST to May 31, 11:59 PM CST
Where: Davis forecast zone
Property damage: $100,000
Crop damage: $298,000
Reported by: OFFICIAL NWS OBS.
Coordinates: 40.748, -92.410 (the zone’s center; the record gives no point)

Flood, Decatur

When: May 22, 6:00 PM CST to May 31, 11:59 PM CST
Where: Decatur forecast zone
Property damage: $100,000
Crop damage: $298,000
Reported by: OFFICIAL NWS OBS.
Coordinates: 40.738, -93.786 (the zone’s center; the record gives no point)

Flood, Emmet

When: May 22, 6:00 PM CST to May 31, 11:59 PM CST
Where: Emmet forecast zone
Property damage: $100,000
Crop damage: $298,000
Reported by: OFFICIAL NWS OBS.
Coordinates: 43.378, -94.678 (the zone’s center; the record gives no point)

Flood, Franklin

When: May 22, 6:00 PM CST to May 31, 11:59 PM CST
Where: Franklin forecast zone
Property damage: $100,000
Crop damage: $298,000
Reported by: OFFICIAL NWS OBS.
Coordinates: 42.733, -93.262 (the zone’s center; the record gives no point)

Flood, Greene

When: May 22, 6:00 PM CST to May 31, 11:59 PM CST
Where: Greene forecast zone
Property damage: $100,000
Crop damage: $298,000
Reported by: OFFICIAL NWS OBS.
Coordinates: 42.036, -94.397 (the zone’s center; the record gives no point)

Flood, Grundy

When: May 22, 6:00 PM CST to May 31, 11:59 PM CST
Where: Grundy forecast zone
Property damage: $100,000
Crop damage: $298,000
Reported by: OFFICIAL NWS OBS.
Coordinates: 42.402, -92.791 (the zone’s center; the record gives no point)

Flood, Guthrie

When: May 22, 6:00 PM CST to May 31, 11:59 PM CST
Where: Guthrie forecast zone
Property damage: $100,000
Crop damage: $298,000
Reported by: OFFICIAL NWS OBS.
Coordinates: 41.684, -94.501 (the zone’s center; the record gives no point)

Flood, Hamilton

When: May 22, 6:00 PM CST to May 31, 11:59 PM CST
Where: Hamilton forecast zone
Property damage: $100,000
Crop damage: $298,000
Reported by: OFFICIAL NWS OBS.
Coordinates: 42.384, -93.707 (the zone’s center; the record gives no point)

Flood, Hancock

When: May 22, 6:00 PM CST to May 31, 11:59 PM CST
Where: Hancock forecast zone
Property damage: $100,000
Crop damage: $298,000
Reported by: OFFICIAL NWS OBS.
Coordinates: 43.082, -93.734 (the zone’s center; the record gives no point)

Flood, Hardin

When: May 22, 6:00 PM CST to May 31, 11:59 PM CST
Where: Hardin forecast zone
Property damage: $100,000
Crop damage: $298,000
Reported by: OFFICIAL NWS OBS.
Coordinates: 42.384, -93.240 (the zone’s center; the record gives no point)

Flood, Humboldt

When: May 22, 6:00 PM CST to May 31, 11:59 PM CST
Where: Humboldt forecast zone
Property damage: $100,000
Crop damage: $298,000
Reported by: OFFICIAL NWS OBS.
Coordinates: 42.777, -94.207 (the zone’s center; the record gives no point)

Flood, Jasper

When: May 22, 6:00 PM CST to May 31, 11:59 PM CST
Where: Jasper forecast zone
Property damage: $100,000
Crop damage: $298,000
Reported by: OFFICIAL NWS OBS.
Coordinates: 41.686, -93.054 (the zone’s center; the record gives no point)

Flood, Kossuth

When: May 22, 6:00 PM CST to May 31, 11:59 PM CST
Where: Kossuth forecast zone
Property damage: $100,000
Crop damage: $298,000
Reported by: OFFICIAL NWS OBS.
Coordinates: 43.204, -94.207 (the zone’s center; the record gives no point)

Flood, Lucas

When: May 22, 6:00 PM CST to May 31, 11:59 PM CST
Where: Lucas forecast zone
Property damage: $100,000
Crop damage: $298,000
Reported by: OFFICIAL NWS OBS.
Coordinates: 41.029, -93.328 (the zone’s center; the record gives no point)

Flood, Madison

When: May 22, 6:00 PM CST to May 31, 11:59 PM CST
Where: Madison forecast zone
Property damage: $100,000
Crop damage: $298,000
Reported by: OFFICIAL NWS OBS.
Coordinates: 41.331, -94.016 (the zone’s center; the record gives no point)

Flood, Mahaska

When: May 22, 6:00 PM CST to May 31, 11:59 PM CST
Where: Mahaska forecast zone
Property damage: $100,000
Crop damage: $298,000
Reported by: OFFICIAL NWS OBS.
Coordinates: 41.335, -92.641 (the zone’s center; the record gives no point)

Flood, Marion

When: May 22, 6:00 PM CST to May 31, 11:59 PM CST
Where: Marion forecast zone
Property damage: $100,000
Crop damage: $298,000
Reported by: OFFICIAL NWS OBS.
Coordinates: 41.334, -93.099 (the zone’s center; the record gives no point)

Flood, Marshall

When: May 22, 6:00 PM CST to May 31, 11:59 PM CST
Where: Marshall forecast zone
Property damage: $100,000
Crop damage: $298,000
Reported by: OFFICIAL NWS OBS.
Coordinates: 42.036, -92.999 (the zone’s center; the record gives no point)

Flood, Monroe

When: May 22, 6:00 PM CST to May 31, 11:59 PM CST
Where: Monroe forecast zone
Property damage: $100,000
Crop damage: $298,000
Reported by: OFFICIAL NWS OBS.
Coordinates: 41.030, -92.869 (the zone’s center; the record gives no point)

Flood, Palo Alto

When: May 22, 6:00 PM CST to May 31, 11:59 PM CST
Where: Palo Alto forecast zone
Property damage: $100,000
Crop damage: $298,000
Reported by: OFFICIAL NWS OBS.
Coordinates: 43.082, -94.678 (the zone’s center; the record gives no point)

Flood, Pocahontas

When: May 22, 6:00 PM CST to May 31, 11:59 PM CST
Where: Pocahontas forecast zone
Property damage: $100,000
Crop damage: $298,000
Reported by: OFFICIAL NWS OBS.
Coordinates: 42.734, -94.679 (the zone’s center; the record gives no point)

Flood, Polk

When: May 22, 6:00 PM CST to May 31, 11:59 PM CST
Where: Polk forecast zone
Property damage: $100,000
Crop damage: $298,000
Reported by: OFFICIAL NWS OBS.
Coordinates: 41.686, -93.573 (the zone’s center; the record gives no point)

Flood, Poweshiek

When: May 22, 6:00 PM CST to May 31, 11:59 PM CST
Where: Poweshiek forecast zone
Property damage: $100,000
Crop damage: $298,000
Reported by: OFFICIAL NWS OBS.
Coordinates: 41.686, -92.531 (the zone’s center; the record gives no point)

Flood, Ringgold

When: May 22, 6:00 PM CST to May 31, 11:59 PM CST
Where: Ringgold forecast zone
Property damage: $100,000
Crop damage: $298,000
Reported by: OFFICIAL NWS OBS.
Coordinates: 40.735, -94.244 (the zone’s center; the record gives no point)

Flood, Sac

When: May 22, 6:00 PM CST to May 31, 11:59 PM CST
Where: Sac forecast zone
Property damage: $100,000
Crop damage: $298,000
Reported by: OFFICIAL NWS OBS.
Coordinates: 42.386, -95.105 (the zone’s center; the record gives no point)

Flood, Story

When: May 22, 6:00 PM CST to May 31, 11:59 PM CST
Where: Story forecast zone
Property damage: $100,000
Crop damage: $298,000
Reported by: OFFICIAL NWS OBS.
Coordinates: 42.036, -93.465 (the zone’s center; the record gives no point)

Flood, Tama

When: May 22, 6:00 PM CST to May 31, 11:59 PM CST
Where: Tama forecast zone
Property damage: $100,000
Crop damage: $298,000
Reported by: OFFICIAL NWS OBS.
Coordinates: 42.080, -92.532 (the zone’s center; the record gives no point)

Flood, Taylor

When: May 22, 6:00 PM CST to May 31, 11:59 PM CST
Where: Taylor forecast zone
Property damage: $100,000
Crop damage: $298,000
Reported by: OFFICIAL NWS OBS.
Coordinates: 40.737, -94.696 (the zone’s center; the record gives no point)

Flood, Union

When: May 22, 6:00 PM CST to May 31, 11:59 PM CST
Where: Union forecast zone
Property damage: $100,000
Crop damage: $298,000
Reported by: OFFICIAL NWS OBS.
Coordinates: 41.028, -94.242 (the zone’s center; the record gives no point)

Flood, Wapello

When: May 22, 6:00 PM CST to May 31, 11:59 PM CST
Where: Wapello forecast zone
Property damage: $100,000
Crop damage: $298,000
Reported by: OFFICIAL NWS OBS.
Coordinates: 41.031, -92.409 (the zone’s center; the record gives no point)

Flood, Warren

When: May 22, 6:00 PM CST to May 31, 11:59 PM CST
Where: Warren forecast zone
Property damage: $100,000
Crop damage: $298,000
Reported by: OFFICIAL NWS OBS.
Coordinates: 41.334, -93.561 (the zone’s center; the record gives no point)

Flood, Wayne

When: May 22, 6:00 PM CST to May 31, 11:59 PM CST
Where: Wayne forecast zone
Property damage: $100,000
Crop damage: $298,000
Reported by: OFFICIAL NWS OBS.
Coordinates: 40.740, -93.327 (the zone’s center; the record gives no point)

Flood, Webster

When: May 22, 6:00 PM CST to May 31, 11:59 PM CST
Where: Webster forecast zone
Property damage: $100,000
Crop damage: $298,000
Reported by: OFFICIAL NWS OBS.
Coordinates: 42.428, -94.182 (the zone’s center; the record gives no point)

Flood, Winnebago

When: May 22, 6:00 PM CST to May 31, 11:59 PM CST
Where: Winnebago forecast zone
Property damage: $100,000
Crop damage: $298,000
Reported by: OFFICIAL NWS OBS.
Coordinates: 43.378, -93.734 (the zone’s center; the record gives no point)

Flood, Worth

When: May 22, 6:00 PM CST to May 31, 11:59 PM CST
Where: Worth forecast zone
Property damage: $100,000
Crop damage: $298,000
Reported by: OFFICIAL NWS OBS.
Coordinates: 43.377, -93.261 (the zone’s center; the record gives no point)

Flood, Wright

When: May 22, 6:00 PM CST to May 31, 11:59 PM CST
Where: Wright forecast zone
Property damage: $100,000
Crop damage: $298,000
Reported by: OFFICIAL NWS OBS.
Coordinates: 42.733, -93.735 (the zone’s center; the record gives no point)

What these are

Flood: Flooding that develops more slowly than a flash flood: rivers leaving their banks, or water standing over land for an extended time.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

Every storm in Iowa in 2004 Every state in 2004 This day in weather history Warnings in Iowa, May 2004

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 5393571, 5393572, 5393573, 5393574, 5393575, 5393576, 5393577, 5393578, 5393579, 5393580, 5393581, 5393582, 5393583, 5393584, 5393585, 5393671, 5393672, 5393673, 5393674, 5393675, 5393676, 5393677, 5393678, 5393679, 5393680, 5393681, 5393682, 5393683, 5393684, 5393685, 5393686, 5393687, 5393688, 5393689, 5393690, 5393691, 5393692, 5393693, 5393694, 5393695, and more.