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Storm Events Database
Event Details
| Event | Flash Flood |
| -- Flood Cause | Heavy Rain |
| State | MINNESOTA |
| County/Area | STEELE |
| WFO | MPX |
| Begin Date | 09/23/2010 03:00:00 CST-6 |
| Begin Range | 4 |
| Begin Azimuth | ENE |
| Begin Location | MERTON |
| Begin Lat/Lon | 44.18/-93.07 |
| End Date | 09/23/2010 09:00:00 CST-6 |
| End Range | 1 |
| End Azimuth | NW |
| End Location | DEERFIELD |
| End Lat/Lon | 44.18/-93.38 |
| Deaths Direct/Indirect | 0/0 (fatality details below, when available...) |
| Injuries Direct/Indirect | 0/0 |
| Property Damage | 0.00K |
| Crop Damage | 0.00K |
| Episode Narrative | A strong storm system, in combination with deep moisture from the remnants of a tropical system, produced a large area of flooding rainfall with amounts as high as 8 and 11 inches in an 18 hour period. The main area of precipitation occurred across far southern Minnesota, and portions of west central Wisconsin, between 7:00 p.m., Wednesday, September 22nd, to 9:00 a.m., Thursday, September 23rd. Some of the smaller rivers in southeast Minnesota had historical crests which caused extensive damage around Northfield, Cannon Falls, Zumbrota and Pine Island. One bridge section on the North Fork River along Highway 52 between Cannon Falls, and Pine Island collapsed. The bridge in Cannon Falls was inundated by the flood waters of the Cannon River. In addition to the smaller tributaries, the larger Minnesota and Mississippi Rivers had flooding from Redwood Falls, to the Twin Cities, then southeast to Red Wing, Minnesota for about two to three weeks, as the runoff was extensive. Some of the most notable rainfall measurements are as follows: It was a record 2-day rain event in Amboy, MN (10.68), Waseca, MN (7.65), and Springfield, MN (5.47). Thursday was also the wettest day on record in Waseca, MN (5.16). |
| Event Narrative | Periods of heavy rainfall developed toward midnight, and continued through most of the early morning hours. Rainfall rates increased to over 1.5 inches per hour which caused flash flooding. By 5 am, several county roads were covered by water, including Highway 14 near Meridan and Highway 218 between Highway 14 and Blooming Prairie. The county emergency manager reported street flooding in Owatonna, with intersections closed. Homes were also evacuated along Maple Creek, and sandbagging occurred along the Straight River south of town. |
All events for this episode:
| Location | County/Zone | St. | Date | Time | T.Z. | Type | Mag | Dth | Inj | PrD | CrD |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Totals: | 0 | 0 | 39.247M | 0.00K | |||||||
| AMBOY | BLUE EARTH CO. | MN | 09/22/2010 | 18:00 | CST-6 | Heavy Rain | 0 | 0 | 0.00K | 0.00K | |
| SPRINGFIELD | BROWN CO. | MN | 09/22/2010 | 19:00 | CST-6 | Flash Flood | 0 | 0 | 0.00K | 0.00K | |
| SOUTH BRANCH | WATONWAN CO. | MN | 09/22/2010 | 19:00 | CST-6 | Heavy Rain | 0 | 0 | 0.00K | 0.00K | |
| WALNUT GROVE ARPT | REDWOOD CO. | MN | 09/22/2010 | 19:00 | CST-6 | Flash Flood | 0 | 0 | 0.00K | 0.00K | |
| WELCOME | MARTIN CO. | MN | 09/22/2010 | 19:00 | CST-6 | Heavy Rain | 0 | 0 | 0.00K | 0.00K | |
| NORTHFIELD | RICE CO. | MN | 09/22/2010 | 19:00 | CST-6 | Heavy Rain | 0 | 0 | 0.00K | 0.00K | |
| ALDEN | FREEBORN CO. | MN | 09/22/2010 | 19:00 | CST-6 | Heavy Rain | 0 | 0 | 0.00K | 0.00K | |
| ODIN | WATONWAN CO. | MN | 09/22/2010 | 20:00 | CST-6 | Flash Flood | 0 | 0 | 0.00K | 0.00K | |
| MAPLETON | BLUE EARTH CO. | MN | 09/22/2010 | 22:00 | CST-6 | Heavy Rain | 0 | 0 | 0.00K | 0.00K | |
| ST JAMES | WATONWAN CO. | MN | 09/22/2010 | 22:00 | CST-6 | Heavy Rain | 0 | 0 | 0.00K | 0.00K | |
| GOODHUE | GOODHUE CO. | MN | 09/22/2010 | 23:00 | CST-6 | Heavy Rain | 0 | 0 | 0.00K | 0.00K | |
| CANNON FALLS | GOODHUE CO. | MN | 09/22/2010 | 23:00 | CST-6 | Heavy Rain | 0 | 0 | 0.00K | 0.00K | |
| BLUE EARTH | FARIBAULT CO. | MN | 09/22/2010 | 23:30 | CST-6 | Heavy Rain | 0 | 0 | 0.00K | 0.00K | |
| PILOT GROVE | FARIBAULT CO. | MN | 09/23/2010 | 00:00 | CST-6 | Flash Flood | 0 | 0 | 0.00K | 0.00K | |
| ORMSBY | MARTIN CO. | MN | 09/23/2010 | 00:00 | CST-6 | Flash Flood | 0 | 0 | 0.00K | 0.00K | |
| MINNESOTA LAKE | BLUE EARTH CO. | MN | 09/23/2010 | 00:00 | CST-6 | Flash Flood | 0 | 0 | 0.00K | 0.00K | |
| WALDORF | WASECA CO. | MN | 09/23/2010 | 02:30 | CST-6 | Flash Flood | 0 | 0 | 0.00K | 0.00K | |
| MERTON | STEELE CO. | MN | 09/23/2010 | 03:00 | CST-6 | Flash Flood | 0 | 0 | 0.00K | 0.00K | |
| LONDON | FREEBORN CO. | MN | 09/23/2010 | 03:00 | CST-6 | Flash Flood | 0 | 0 | 0.00K | 0.00K | |
| RANDOLPH | GOODHUE CO. | MN | 09/23/2010 | 03:00 | CST-6 | Flash Flood | 0 | 0 | 0.00K | 0.00K | |
| EPSOM | RICE CO. | MN | 09/23/2010 | 03:00 | CST-6 | Flash Flood | 0 | 0 | 0.00K | 0.00K | |
| LEXINGTON | LE SUEUR CO. | MN | 09/23/2010 | 03:00 | CST-6 | Flash Flood | 0 | 0 | 0.00K | 0.00K | |
| COURTLAND | NICOLLET CO. | MN | 09/23/2010 | 09:00 | CST-6 | Flood | 0 | 0 | 0.00K | 0.00K | |
| NORTHFIELD | DAKOTA CO. | MN | 09/23/2010 | 09:00 | CST-6 | Flood | 0 | 0 | 0.00K | 0.00K | |
| CANNON LAKE | RICE CO. | MN | 09/23/2010 | 09:00 | CST-6 | Flood | 0 | 0 | 1.800M | 0.00K | |
| BATH | FREEBORN CO. | MN | 09/23/2010 | 09:00 | CST-6 | Flood | 0 | 0 | 190.00K | 0.00K | |
| ODIN | WATONWAN CO. | MN | 09/23/2010 | 09:00 | CST-6 | Flood | 0 | 0 | 3.900M | 0.00K | |
| MINNESOTA LAKE | FARIBAULT CO. | MN | 09/23/2010 | 09:00 | CST-6 | Flood | 0 | 0 | 402.00K | 0.00K | |
| KASOTA | LE SUEUR CO. | MN | 09/23/2010 | 09:00 | CST-6 | Flood | 0 | 0 | 0.00K | 0.00K | |
| AMBOY | BLUE EARTH CO. | MN | 09/23/2010 | 09:00 | CST-6 | Flood | 0 | 0 | 2.100M | 0.00K | |
| TRIMONT | MARTIN CO. | MN | 09/23/2010 | 09:00 | CST-6 | Flood | 0 | 0 | 915.00K | 0.00K | |
| WALDORF | WASECA CO. | MN | 09/23/2010 | 09:00 | CST-6 | Flood | 0 | 0 | 1.000M | 0.00K | |
| ELLENDALE | STEELE CO. | MN | 09/23/2010 | 09:00 | CST-6 | Flood | 0 | 0 | 28.400M | 0.00K | |
| SPRINGFIELD | BROWN CO. | MN | 09/23/2010 | 09:00 | CST-6 | Flood | 0 | 0 | 0.00K | 0.00K | |
| PINE IS | GOODHUE CO. | MN | 09/23/2010 | 10:00 | CST-6 | Flood | 0 | 0 | 540.00K | 0.00K | |
| Totals: | 0 | 0 | 39.247M | 0.00K |
