Hot temperatures are forecast over the Plains and into the lower Mississippi River Valley Friday where Heat Advisories have been issued. Heavy rain from a disturbance in the western Gulf could bring flooding to south Texas. Erin could bring tropical storm conditions and heavy rain to Puerto Rico and the USVI this weekend with dangerous surf and rip currents impacting the western Atlantic Basin. Read More >
Overview
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Torrential rainfall, flash flooding, and major river flooding occurred during the last two weeks of September across northeast Iowa, eastern Iowa, and along the Mississippi river. Many locations saw rivers rise to levels not seen since the 2008 flood. Heavy rain fell in the Cedar, Iowa, Wapsipinicon, and Maquoketa river basins over northern Iowa and western Wisconsin between Wed Sept 21st and Friday Sept 23rd. Many towns along these rivers and their tributaries were inundated with flood waters. The 2nd highest crest was recorded on the Cedar River at Cedar Rapids, with a preliminary crest of 21.97' on Sep 27th. The Wapsipinicon river at De Witt also recorded a preliminary crest of 13.86' on Sept 30th, putting it at the 4th highest crest on record. |
 September 2016 Rainfall Amounts Across the Midwest |
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| 30-day Observed Precipitation Ending 9/23/16 | 30-day Departure from Normal Precipitation Ending 9/23/16 | 30-day Percent of Normal Precipitation Ending 9/23/16 |
Flooding
Minor to major flooding was observed on several rivers across the area. Below are some hydrographs of locations that experienced flooding.
Hydrographs
| MAJOR FLOODING | |||
| Cedar River | |||
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| Vinton, IA | Palo, IA (not a forecast point) | Cedar Rapids, IA | Conesville, IA |
| Iowa River | |||
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| Columbus Jct, IA | Wapello, IA | ||
| Wapsipinicon River | |||
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| Independence, IA | Anamosa, IA | De Witt, IA | |
| Maquoketa River | |||
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| Manchester, IA | |||
| Mississippi River | |||
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| New Boston, IL | Keithsburg, IL | Gladstone, IL | Burlington, IA |
| MODERATE FLOODING | |||
| Iowa River | |||
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| Marengo, IA | Oakville, IA | ||
| Mississippi River | |||
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| Rock Island, IL | Illinois City, IL | Muscatine, IA | |
| MINOR FLOODING | |||
| Maquoketa River | |||
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| Maquoketa, IA | |||
| Mississippi River | |||
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| Dubuque, IA | Camanche, IA | Le Claire, IA | Keokuk, IA |
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| Gregory Landing, MO | |||
Photos (more to be added)
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| Benton County EM Offices surrounded by Cedar River water | Inundated streets and homes in Vinton, IA | Flood Preparations in Czech Village in Cedar Rapids, IA | The Cedar River from the 12th Ave Bridge in Cedar Rapids near crest time. |
Rain Reports/Maps
| Interactive Map | Radar Precip Estimates 9/21/16 |
Radar Precip Estimates 9/22/16 |
Radar Precip Estimates 9/23/16 |
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PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
1024 AM CDT FRI SEP 23 2016
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1028 PM FLASH FLOOD DYERSVILLE 42.48N 91.12W
09/22/2016 DUBUQUE IA EMERGENCY MNGR
FLASH FLOODING FLOWING INTO HOMES BASEMENT. FIRE
DEPARTMENT IS RESPONDING TO THE INCIDENT.
1208 AM FLASH FLOOD WORTHINGTON 42.40N 91.12W
09/23/2016 DUBUQUE IA EMERGENCY MNGR
EM REPORTS A COUPLE OF WASHED OUT ROADS IN SOUTHWEST
DUBUQUE COUNTY FROM FLOODING. MOST CREEKS HAVE RETURNED
TO THEIR BANKS AT THE CURRENT TIME.
0513 AM FLASH FLOOD CEDAR RAPIDS 41.97N 91.67W
09/23/2016 LINN IA LAW ENFORCEMENT
ELLIS ROAD WEST OF EDGEWOOD ROAD IS UNDER WATER AND
IMPASSABLE
0602 AM HEAVY RAIN 1 E INDEPENDENCE 42.47N 91.88W
09/23/2016 M2.25 INCH BUCHANAN IA TRAINED SPOTTER
24-HOUR RAINFALL
0615 AM HEAVY RAIN WSW QUASQUETON 42.40N 91.76W
09/23/2016 E2.20 INCH BUCHANAN IA COCORAHS
24 HOUR RAINFALL. OBSERVED CREEKS BETWEEN QUASQUETON AND
CENTER POINT ARE FULL. STANDING WATER IN DITCHES.
0642 AM HEAVY RAIN WILLIAMSBURG 41.67N 92.01W
09/23/2016 M1.60 INCH IOWA IA CO-OP OBSERVER
24-HOUR RAINFALL
0700 AM HEAVY RAIN BELLE PLAINE 41.90N 92.27W
09/23/2016 M1.85 INCH BENTON IA CO-OP OBSERVER
24-HOUR RAINFALL
0700 AM HEAVY RAIN COGGON 42.28N 91.53W
09/23/2016 M2.70 INCH LINN IA CO-OP OBSERVER
24-HOUR RAINFALL
0700 AM HEAVY RAIN MARENGO 41.80N 92.07W
09/23/2016 M2.25 INCH IOWA IA CO-OP OBSERVER
24-HOUR RAINFALL
0700 AM HEAVY RAIN IOWA CITY 41.66N 91.54W
09/23/2016 M1.20 INCH JOHNSON IA CO-OP OBSERVER
24-HOUR RAINFALL
0700 AM HEAVY RAIN CASCADE 42.30N 91.01W
09/23/2016 M1.50 INCH DUBUQUE IA CO-OP OBSERVER
24-HOUR RAINFALL
0740 AM HEAVY RAIN VINTON 42.16N 92.03W
09/23/2016 M2.20 INCH BENTON IA CO-OP OBSERVER
24-HOUR RAINFALL
0740 AM HEAVY RAIN 1 S SWISHER 41.82N 91.69W
09/23/2016 M3.50 INCH JOHNSON IA TRAINED SPOTTER
RAINFALL SINCE 3AM
0740 AM HEAVY RAIN MANCHESTER 42.49N 91.46W
09/23/2016 M5.69 INCH DELAWARE IA CO-OP OBSERVER
24-HOUR TOTAL
0740 AM HEAVY RAIN 1 SSE CEDAR RAPIDS 41.95N 91.66W
09/23/2016 M1.75 INCH LINN IA TRAINED SPOTTER
RAINFALL SINCE 240AM
0755 AM HEAVY RAIN SWISHER 41.84N 91.70W
09/23/2016 M3.43 INCH JOHNSON IA COCORAHS
RAINFALL OVER PAST 5 HOURS
0819 AM HEAVY RAIN 4 N MARENGO 41.85N 92.07W
09/23/2016 M2.50 INCH IOWA IA TRAINED SPOTTER
RAINFALL SINCE 3AM
0912 AM HEAVY RAIN NE BERTRAM 41.96N 91.53W
09/23/2016 M2.50 INCH LINN IA TRAINED SPOTTER
RAIN HAS ENDED
0943 AM FLASH FLOOD W AMANA 41.80N 91.87W
09/23/2016 IOWA IA EMERGENCY MNGR
FLOODING CONINUES ALONG PRICE CREEK IN THE AMANA COLONIES
0955 AM HEAVY RAIN 3 ENE MARION 42.05N 91.54W
09/23/2016 M0.92 INCH LINN IA TRAINED SPOTTER
24 HOUR RAINFALL TOTAL
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