Severe Storms Strike Parts of Northeast and Extreme Southeast Minnesota: April 10, 2011
The first severe thunderstorm outbreak of the season for Minnesota hit during the day on Sunday, April 10. A low pressure area centered over Sioux Falls during the early morning hours of April 10 moved to Duluth by evening. Warm muggy air surged northward out ahead of a cold front that marched to the east across the state. The air felt downright tropical during the midday hours on April 10 over central and southern Minnesota as temperatures surged into the mid 70's and dew point temperatures were in the low to mid 60's.
Strong thunderstorms developed by late morning and turned severe over parts of northeast Minnesota, with severe thunderstorms developing during the late afternoon and evening hours over far southeast Minnesota and western Wisconsin. In Northeastern Minnesota, large hail was reported in parts of Itasca, Cook, and St. Louis Counties. In southeast Minnesota, a barn was blown down and a mobile home was knocked off its foundation north of Caledonia due to straight-line severe thunderstorm winds. Baseball-sized hail was reported at Hokah with enough hail to cover the ground. The Minnesota storms were only part of a larger severe storm outbreak over the midwest.
Some unwelcomed heavy rain fell as well with the storms over parts of Northwest Minnesota with just over 2 inches reported at a volunteer rain gage monitoring site in central Clearwater County.
Behind the cold front chilly air rushed in the state and temperatures dropped by 25 degrees over the course of five hours during the evening in the Twin Cities from the mid 70's to the low 50's.
Listed below are Public Information Statements and Storm Summaries from the National Weather Service.
PRELIMINARY LOCAL STORM REPORT NATIONAL WEATHER SERVICE LA CROSSE WI 1048 AM CDT MON APR 11 2011 ..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON... ..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE.... ..REMARKS.. 0403 PM HAIL 4 N HARMONY 43.61N 92.01W 04/10/2011 E0.50 INCH FILLMORE MN LAW ENFORCEMENT 0415 PM TSTM WND DMG 4 E CANTON 43.53N 91.85W 04/10/2011 FILLMORE MN LAW ENFORCEMENT BARN DOWN AND 1 TREE DOWN ON ROAD 0510 PM TSTM WND DMG 1 N GENOA 43.59N 91.23W 04/10/2011 VERNON WI LAW ENFORCEMENT POWERLINES DOWN ON MOUND RIDGE RD PRELIMINARY LOCAL STORM REPORT...SUMMARY NATIONAL WEATHER SERVICE DULUTH MN 305 PM CDT SUN APR 10 2011 ..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON... ..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE.... ..REMARKS.. 1124 AM HAIL 7 W BOWSTRING 47.54N 93.95W 04/10/2011 M0.75 INCH ITASCA MN TRAINED SPOTTER ON CO ROAD 35 5 MILES EAST OF INGER. LOTS OF PENNY SIZED HAIL 1135 AM HAIL MARCELL 47.59N 93.69W 04/10/2011 M1.75 INCH ITASCA MN PUBLIC ONGOING. NEIGHBORS CAR WINDOW BROKEN DUE TO HAIL. 1235 PM TSTM WND DMG 12 W COOK 47.85N 92.95W 04/10/2011 ST. LOUIS MN PUBLIC WITNESSED GARAGE ROOF LIFT INTO AIR AND FALL BACK ONTO WALLS. SOME DAMAGE TO GARAGE WALLS. BOAT HOUSE OF UNKNOWN CONSTRUCTION DESTROYED. TREE DAMAGE. 1244 PM HAIL GHEEN 47.97N 92.81W 04/10/2011 M0.75 INCH ST. LOUIS MN TRAINED SPOTTER DIME SIZE HAIL COVERING THE GROUND 1247 PM TSTM WND DMG COOK 47.85N 92.69W 04/10/2011 ST. LOUIS MN TRAINED SPOTTER TREES AND POWERLINES DOWN IN COOK AREA. 0205 PM HAIL 10 WNW GUNFLINT LAKE 48.15N 90.90W 04/10/2011 E0.75 INCH COOK MN PUBLIC PEA TO PENNY SIZE HAIL WITH GUSTY WINDS. NO DAMAGE REPORTED. NEAR SEAGULL LAKE. PRELIMINARY LOCAL STORM REPORT...SUMMARY NATIONAL WEATHER SERVICE LA CROSSE WI 851 PM CDT SUN APR 10 2011 ..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON... ..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE.... ..REMARKS.. 0340 PM HAIL ELMA 43.25N 92.44W 04/10/2011 M0.75 INCH HOWARD IA EMERGENCY MNGR 40-50 MPH ESTIMATED WIND ALSO 0350 PM HAIL NELSON 44.42N 92.00W 04/10/2011 M1.00 INCH BUFFALO WI TRAINED SPOTTER 0400 PM HAIL 7 W HARMONY 43.56N 92.15W 04/10/2011 M0.75 INCH FILLMORE MN EMERGENCY MNGR ALSO REPORTED 40 MPH WINDS 0411 PM TSTM WND DMG 2 N BURR OAK 43.48N 91.88W 04/10/2011 WINNESHIEK IA LAW ENFORCEMENT SOME TREES AND POWER LINES DOWN AND BUILDING DAMAGE 0420 PM TSTM WND DMG 2 SW CANTON 43.51N 91.96W 04/10/2011 FILLMORE MN TRAINED SPOTTER 2 FOOT DIAMETER TREE DOWN BLOCKING THE ROAD. 0424 PM HAIL NELSON 44.42N 92.00W 04/10/2011 E0.88 INCH BUFFALO WI FIRE DEPT/RESCUE ALSO SEEING OCCASIONAL WALL CLOUD WITH SOME SLIGHT LOWERING. NO ROTATION AT THIS TIME. 0427 PM HAIL HOUSTON 43.76N 91.57W 04/10/2011 M1.75 INCH HOUSTON MN EMERGENCY MNGR 0430 PM TSTM WND DMG 5 N CALEDONIA 43.71N 91.50W 04/10/2011 HOUSTON MN EMERGENCY MNGR MOBILE HOME KNOCKED OFF FOUNDATION 0432 PM TSTM WND DMG CALEDONIA 43.63N 91.50W 04/10/2011 HOUSTON MN EMERGENCY MNGR BARN DOWN JUST OUTSIDE CALEDONIA 0432 PM HAIL GOODVIEW 44.07N 91.71W 04/10/2011 E1.00 INCH WINONA MN TRAINED SPOTTER 0434 PM TSTM WND DMG 8 N CALEDONIA 43.75N 91.50W 04/10/2011 HOUSTON MN EMERGENCY MNGR NUMEROUS TREES AND POWER LINES DOWN ALONG HWY 76 0435 PM HAIL 5 E FOUNTAIN CITY 44.12N 91.60W 04/10/2011 E1.25 INCH BUFFALO WI TRAINED SPOTTER 0437 PM HAIL ARCADIA 44.25N 91.49W 04/10/2011 E0.75 INCH TREMPEALEAU WI LAW ENFORCEMENT 0438 PM TSTM WND DMG BLACK HAMMER 43.61N 91.67W 04/10/2011 HOUSTON MN LAW ENFORCEMENT SEVERAL TREES DOWN ALONG COUNTY ROAD 19. POSSIBLE TORNADO TOUCHDOWN. DEPUTY ON THE WAY TO INVESTIGATE. 0442 PM HAIL 2 E HOKAH 43.76N 91.31W 04/10/2011 M2.75 INCH HOUSTON MN EMERGENCY MNGR 0442 PM HAIL ARCADIA 44.25N 91.49W 04/10/2011 E1.25 INCH TREMPEALEAU WI TRAINED SPOTTER 0442 PM HAIL HOKAH 43.76N 91.35W 04/10/2011 E3.00 INCH HOUSTON MN TRAINED SPOTTER HAIL COVERING THE GROUND WITH SOME TREES DOWN. 0444 PM HAIL 1 S HOKAH 43.75N 91.35W 04/10/2011 M1.00 INCH HOUSTON MN CO-OP OBSERVER ALSO 0.50 INCHES OF RAIN IN LESS THAN 5 MINUTES AND VERY STRONG WINDS. POWER WENT OUT. 0445 PM HAIL 3 NW BROWNSVILLE 43.73N 91.32W 04/10/2011 E1.75 INCH HOUSTON MN TRAINED SPOTTER 0445 PM TSTM WND DMG 5 N CALEDONIA 43.71N 91.50W 04/10/2011 HOUSTON MN LAW ENFORCEMENT BARN DOWN AND TRAILER BLOWN OFF ITS FOUNDATION. 0451 PM HAIL 2 S LA CROSSE 43.80N 91.23W 04/10/2011 E1.50 INCH LA CROSSE WI AMATEUR RADIO HALF DOLLAR SIZE HAIL 0451 PM TSTM WND GST 2 S LA CROSSE 43.80N 91.23W 04/10/2011 E60.00 MPH LA CROSSE WI AMATEUR RADIO 0452 PM HAIL 2 S LA CROSSE 43.80N 91.23W 04/10/2011 E1.00 INCH LA CROSSE WI LAW ENFORCEMENT ON WARD AVENUE IN SOUTH LA CROSSE 0453 PM HAIL 3 SE LA CROSSE 43.80N 91.19W 04/10/2011 E2.50 INCH LA CROSSE WI AMATEUR RADIO AT SOUTHERN BLUFFS SCHOOL 0453 PM HAIL 2 S LA CROSSE 43.80N 91.23W 04/10/2011 E2.00 INCH LA CROSSE WI PUBLIC EXTENSIVE HAIL DAMAGE ON THE SOUTH SIDE OF LA CROSSE NEAR WAL MART. WINDOWS BROKEN AND SIDING DAMAGED TO AN ESTIMATED 10 TO 15 HOMES. SEVERAL VEHICLES ALSO DAMAGED WITH DENTS AND BROKEN WINDOWS AND MIRRORS. 0454 PM HAIL 5 S OSSEO 44.51N 91.22W 04/10/2011 E1.75 INCH TREMPEALEAU WI TRAINED SPOTTER 0454 PM HAIL 3 E LA CROSSE 43.83N 91.17W 04/10/2011 E1.75 INCH LA CROSSE WI NWS EMPLOYEE AT NWS OFFICE 0454 PM HAIL 2 S LA CROSSE 43.80N 91.23W 04/10/2011 E2.00 INCH LA CROSSE WI AMATEUR RADIO SOUTH SIDE 0455 PM HAIL 3 E LA CROSSE 43.83N 91.17W 04/10/2011 M1.75 INCH LA CROSSE WI LAW ENFORCEMENT AT HWY 14 AND CTH MM 0456 PM TSTM WND GST 1 E LA CROSSE 43.83N 91.21W 04/10/2011 M52.00 MPH LA CROSSE WI NWS EMPLOYEE AT NWS OFFICE 0459 PM HAIL WEST SALEM 43.90N 91.08W 04/10/2011 M1.00 INCH LA CROSSE WI NWS EMPLOYEE ALSO 40 MPH WIND 0500 PM TSTM WND DMG OSSEO 44.58N 91.22W 04/10/2011 TREMPEALEAU WI TRAINED SPOTTER LOTS OF WINDOWS BROKEN AND CARS DENTED FROM WHAT APPEARS TO BE WIND BLOWN DEBRIS. 0516 PM HAIL 1 S SPARTA 43.93N 90.81W 04/10/2011 M1.00 INCH MONROE WI LAW ENFORCEMENT AT I-90 EXIT 25 0525 PM HAIL 7 E SPARTA 43.94N 90.67W 04/10/2011 M1.75 INCH MONROE WI LAW ENFORCEMENT AT HWY 16 AND CTH A 0530 PM HAIL MEDFORD 45.14N 90.35W 04/10/2011 E1.00 INCH TAYLOR WI PUBLIC 0530 PM HAIL 1 N TOMAH 44.00N 90.50W 04/10/2011 M1.25 INCH MONROE WI TRAINED SPOTTER 0532 PM HAIL TUNNEL CITY 44.00N 90.57W 04/10/2011 M0.50 INCH MONROE WI TRAINED SPOTTER 0536 PM FUNNEL CLOUD 3 SW OAKDALE 43.93N 90.42W 04/10/2011 MONROE WI LAW ENFORCEMENT POSSIBLE FUNNEL REPORTED BY PUBLIC 0538 PM HAIL WARRENS 44.13N 90.50W 04/10/2011 E1.00 INCH MONROE WI AMATEUR RADIO 0538 PM HAIL 2 W TOMAH 43.99N 90.54W 04/10/2011 M0.75 INCH MONROE WI TRAINED SPOTTER 0539 PM HAIL 3 W WITHEE 44.95N 90.66W 04/10/2011 M0.25 INCH CLARK WI LAW ENFORCEMENT 0542 PM HAIL 4 SW STETSONVILLE 45.04N 90.37W 04/10/2011 E1.00 INCH TAYLOR WI LAW ENFORCEMENT 0608 PM TSTM WND DMG 3 SE NECEDAH 43.99N 90.03W 04/10/2011 JUNEAU WI LAW ENFORCEMENT 8 TO 10 INCH PINE TREES UPROOTED AND A GARAGE DOWN. WINDS ESTIMATED 60 MPH. 0610 PM TSTM WND GST VOLK FIELD 43.93N 90.27W 04/10/2011 M56.00 MPH JUNEAU WI ASOS 0610 PM TORNADO 1 NW ARKDALE 44.04N 89.90W 04/10/2011 ADAMS WI PUBLIC POSSIBLE TORNADO REPORTED BY PUBLIC. CONSIDERABLE TREE DAMAGE. 0610 PM TSTM WND DMG NECEDAH 44.02N 90.07W 04/10/2011 JUNEAU WI LAW ENFORCEMENT FUNNEL CLOUD WITH TREES DOWN. 0618 PM HAIL 3 SE NECEDAH 43.99N 90.03W 04/10/2011 M1.25 INCH JUNEAU WI AMATEUR RADIO 0618 PM HAIL 1 E NECEDAH 44.02N 90.05W 04/10/2011 M1.25 INCH JUNEAU WI AMATEUR RADIO 0623 PM HAIL BIG FLATS 44.12N 89.80W 04/10/2011 E1.00 INCH ADAMS WI TRAINED SPOTTER 0625 PM TSTM WND DMG COTTONVILLE 44.06N 89.81W 04/10/2011 ADAMS WI TRAINED SPOTTER TREES DOWN. 0630 PM HAIL NEW ROME 44.24N 89.88W 04/10/2011 E0.75 INCH ADAMS WI TRAINED SPOTTER 0630 PM TORNADO COTTONVILLE 44.06N 89.81W 04/10/2011 ADAMS WI AMATEUR RADIO REPORTED BY SPOTTER 0725 PM HAIL 2 S FRIENDSHIP 43.95N 89.82W 04/10/2011 M0.88 INCH ADAMS WI TRAINED SPOTTER DIME HAIL IN ADAMS 0727 PM HAIL ADAMS 43.96N 89.82W 04/10/2011 E0.75 INCH ADAMS WI TRAINED SPOTTER
Updated By: Climatology Volunteer Lucas Graunke