On the heels of severe storms and a tornado reported in Cottonwood County on Tuesday July 7th, more severe thunderstorms rolled across southwest Minnesota on Thursday July 9th. A tornado was reported by a storm spotter three and a half miles southwest of Fulda near the border of Murray and Nobles County. One to three inches of rain fell across the southern tier counties of Minnesota along the Iowa border from Worthington to Blue Earth. The heaviest rain reported was 3.53 inches at Lakefield in Jackson County. Some street flooding was reported in Worthington along with some golf ball sized hail to the west and northwest of Worthington.
The storms formed out ahead of a sluggish cold front in the Dakotas. Both rounds of storms missed the areas in the state that needed the rain the most. The cool front pushed to the east over Minnesota during the day on July 10th and ushered in northwest winds and drier air. The dew point temperature at the Twin Cities International Airport fell from 63 degrees at noon to 52 degrees by 3pm.
Below are Public Information Statements on the July 8-9 storms courtesy the National Weather Service.
PRELIMINARY LOCAL STORM REPORT...SUMMARY NATIONAL WEATHER SERVICE SIOUX FALLS SD 808 AM CDT WED JUL 08 2009 ..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON... ..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE.... ..REMARKS.. 0610 PM TORNADO 6 N STORDEN 44.13N 95.32W 07/07/2009 COTTONWOOD MN LAW ENFORCEMENT 0623 PM FUNNEL CLOUD 2 WNW HERON LAKE 43.81N 95.36W 07/07/2009 JACKSON MN TRAINED SPOTTER 0 0635 PM HAIL WINDOM 43.87N 95.12W 07/07/2009 E0.25 INCH COTTONWOOD MN TRAINED SPOTTER PRELIMINARY LOCAL STORM REPORT NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 736 PM CDT TUE JUL 07 2009 ..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON... ..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE.... ..REMARKS.. 0728 PM TSTM WND GST CEYLON 43.53N 94.63W 07/07/2009 E50 MPH MARTIN MN LAW ENFORCEMENT MARTIN COUNTY 911 CENTER RELAYED REPORT OF 50 MPH WIND GUSTS IN CEYLON. PRELIMINARY LOCAL STORM REPORT NATIONAL WEATHER SERVICE SIOUX FALLS SD 1138 PM CDT THU JUL 09 2009 ..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON... ..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE.... ..REMARKS.. 1131 PM FLASH FLOOD WORTHINGTON 43.63N 95.60W 07/09/2009 NOBLES MN EMERGENCY MNGR THE HIGHWAY 59/60 UNDERPASS IN THE SOUTHEAST PART OF WORTHINGTON IS FLOODED BY THE HEAVY RAIN. PRELIMINARY LOCAL STORM REPORT NATIONAL WEATHER SERVICE SIOUX FALLS SD 1044 PM CDT THU JUL 09 2009 ..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON... ..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE.... ..REMARKS.. 0910 PM TSTM WND DMG 3 NW HERON LAKE 43.83N 95.37W 07/09/2009 JACKSON MN PUBLIC TREE-TOPPED. PRELIMINARY LOCAL STORM REPORT...SUMMARY NATIONAL WEATHER SERVICE SIOUX FALLS SD 1034 PM CDT THU JUL 09 2009 ..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON... ..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE.... ..REMARKS.. 0747 PM HAIL ELLSWORTH 43.52N 96.02W 07/09/2009 E1.75 INCH NOBLES MN TRAINED SPOTTER 0822 PM HAIL 2 W WORTHINGTON 43.63N 95.64W 07/09/2009 E1.75 INCH NOBLES MN BROADCAST MEDIA 0827 PM HAIL 2 NW WORTHINGTON 43.65N 95.63W 07/09/2009 E1.75 INCH NOBLES MN LAW ENFORCEMENT 0829 PM HAIL 3 NW WORTHINGTON 43.66N 95.64W 07/09/2009 E1.00 INCH NOBLES MN TRAINED SPOTTER 0833 PM FLASH FLOOD WORTHINGTON 43.63N 95.60W 07/09/2009 NOBLES MN BROADCAST MEDIA FLOODED INTERSECTION OF 10TH STREET AND 8TH AVENUE 0840 PM TSTM WND DMG 6 N BREWSTER 43.78N 95.46W 07/09/2009 NOBLES MN AMATEUR RADIO 8-10 INCH BRANCHES SNAPPED 0903 PM HAIL N DUNDEE 43.85N 95.47W 07/09/2009 E1.00 INCH NOBLES MN TRAINED SPOTTER PUBLIC INFORMATION STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 955 AM CDT FRI JUL 10 2009 24 HOUR PRECIPITATION DATA IN INCHES...FOR SOUTHWEST MINNESOTA ...RECEIVED BY 9 AM FRIDAY JULY 10 2009. ...SOUTHWEST MINNESOTA... LAKEFIELD 3.53 JACKSON AIRPORT 2.78 WORTHINGTON COOP 2.14 WORTHINGTON 1.4 NNE 2.13 WORTHINGTON AIRPORT 1.59 HERON LAKE 7E 1.24 WINDOM AIRPORT 0.55 LUVERNE AIRPORT 0.16 SLAYTON 0.12 TRACY AIRPORT 0.10 PIPESTONE 0.10 WESTBROOK 1.4 NW 0.05 MARSHALL COOP 0.02