Summary of April 9, 2017 Large Hail Reports

Overview

Warm and humid conditions, for early April, led to the eruption of numerous thunderstorms Sunday afternoon and evening, April 9th. Some of those storms became severe, producing large hail from north central Iowa, across southeast Minnesota, into north central Wisconsin.

Hail ranged from the size of pennies all the way up to tennis balls, with the largest hail report occurring just north of the town of Stacyville, Iowa in Mitchell County. There were lots of reports of hail, without much rain or gusty wind.

Radar loop of thunderstorms that worked through the region late Sunday afternoon and evening, April 9th. Note the dark red and purple colors are regions where large hail fell.

Photos
Storm Reports

Photos:


Map of "hail tracks" from the NWS La Crosse radar. Green colors show the largest hail.	A look at all storm reports received by the National Weather Service. Interactive list available	Hail slightly larger than quarter size from Stacyville, IA. (Photo used with permission by Brad Gerk)	Large hail from northwest Rochester, MN. (Photo used with permission by Taylor Bauman)


2" hail from Dodge Center, MN (Photo used with permission by Brandon Vermilyea)	Hail from northwest Kasson, MN. (Photo used with permission by Roger Berge)	Hail around 1" in diameter in northwest Rochester, MN. (Photo used with permission by John Somheil)	Large hail that fell in Austin, MN (8:15-8:17pm) (Photo by Amy Lammey, Mower Co. Emerg.Mgmt)


Northwest Rochester, MN (Photo used with permission by Brian Morgan)	Hail photo from Rochester, MN (Photo used with permission by Andrew Pederson)	Large than 1" hail from Rochester, MN (Photo used with permission by @kevarh)

Storm Reports

Below is a listing of all storm reports received. Note that an interactive graphical version of this list is also available.

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE LA CROSSE WI
1143 AM CDT MON APR 10 2017

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

0329 PM     HAIL             3 NNW LUBLIN            45.12N 90.75W
04/09/2017  U0.50 INCH       TAYLOR             WI   TRAINED SPOTTER  

            TRAINED SPOTTER REPORTED HAIL SIZE OF PEA TO 
            LESS THAN A DIME FOUR MILES NORTH OF LUBLIN. 

0811 PM     HAIL             2 SW AUSTIN             43.66N 93.00W
04/09/2017  E0.75 INCH       MOWER              MN   TRAINED SPOTTER  

            TRAINED SPOTTER REPORTED DIME SIZE HAIL NEAR 
            AUSTIN. 

0812 PM     HAIL             2 E AUSTIN              43.67N 92.94W
04/09/2017  M1.00 INCH       MOWER              MN   BROADCAST MEDIA  

            BROADCAST MEDIA REPORTED NICKEL TO QUARTER 
            SIZE HAIL IN AUSTIN. 

0840 PM     HAIL             2 E KASSON              44.03N 92.70W
04/09/2017  M1.00 INCH       DODGE              MN   PUBLIC           

            PUBLIC MEASURED QUARTER SIZE HAIL NEAR THE 
            CITY OF KASSON. 

0849 PM     HAIL             1 E BYRON               44.03N 92.63W
04/09/2017  E1.25 INCH       OLMSTED            MN   PUBLIC           

            PUBLIC VIA SOCIAL MEDIA ESTIMATED HALF 
            DOLLAR SIZE HAIL NEAR THE CITY OF BYRON. 

0900 PM     HAIL             3 ESE DOUGLAS           44.09N 92.51W
04/09/2017  E0.75 INCH       OLMSTED            MN   BROADCAST MEDIA  

            BROADCAST MEDIA REPORTED PENNY SIZE HAIL ON 
            THE NORTHWEST SIDE OF ROCHESTER. 

0900 PM     HAIL             3 SSE DOUGLAS           44.07N 92.56W
04/09/2017  E1.00 INCH       OLMSTED            MN   PUBLIC           

            PUBLIC VIA SOCIAL MEDIA ESTIMATED QUARTER 
            SIZE HAIL ON THE NORTHWEST SIDE OF 
            ROCHESTER. 

0900 PM     HAIL             5 N STEWARTVILLE        43.93N 92.47W
04/09/2017  M1.00 INCH       OLMSTED            MN   CO-OP OBSERVER   

            COOPERATIVE OBSERVER REPORTED QUARTER SIZE 
            HAIL TWO MILES NORTHEAST OF ROCHESTER 
            INTERNATIONAL AIRPORT. 

0917 PM     HAIL             HAMMOND                 44.22N 92.37W
04/09/2017  E1.00 INCH       WABASHA            MN   PUBLIC           

            PUBLIC VIA SOCIAL MEDIA REPORTED QUARTER 
            SIZE HAIL IN THE TOWN OF HAMMOND. 

0938 PM     HAIL             2 SSE PLAINVIEW         44.14N 92.15W
04/09/2017  E1.00 INCH       WABASHA            MN   FIRE DEPT/RESCUE 

            FIRE DEPARTMENT RESCUE REPORTED QUARTER SIZE 
            NEAR THE TOWN OF PLAINVIEW. 

0946 PM     HAIL             LAKE CITY               44.44N 92.28W
04/09/2017  E0.50 INCH       WABASHA            MN   PUBLIC           

            PUBLIC VIA SOCIAL MEDIA REPORTED HALF OF AN 
            INCH TO PENNY SIZE HAIL IN THE CITY OF LAKE 
            CITY. 

0948 PM     HAIL             1 N SAINT ANSGAR        43.39N 92.92W
04/09/2017  E1.00 INCH       MITCHELL           IA   TRAINED SPOTTER  



0950 PM     HAIL             SAINT ANSGAR            43.38N 92.92W
04/09/2017  M1.25 INCH       MITCHELL           IA   PUBLIC           

            PUBLIC MEASURED QUARTER TO HALF DOLLAR SIZE 
            HAIL IN THE CITY OF ST. ANSGAR. 

0950 PM     HAIL             SAINT ANSGAR            43.38N 92.92W
04/09/2017  E1.00 INCH       MITCHELL           IA   PUBLIC           

            PUBLIC VIA SOCIAL MEDIA REPORTED QUARTER 
            SIZE HAIL IN ST. ANSGAR. 

0958 PM     HAIL             STACYVILLE              43.44N 92.78W
04/09/2017  M1.25 INCH       MITCHELL           IA   PUBLIC           

            TWITTER PHOTO REPORT. 

1000 PM     HAIL             2 NE STACYVILLE         43.46N 92.75W
04/09/2017  E2.50 INCH       MITCHELL           IA   BROADCAST MEDIA  

            TIME ESTIMATED FROM RADAR. BIGGEST HAIL 
            REPORTED BETWEEN STACYVILLE, IA AND ADAMS, 
            MN. 

1009 PM     HAIL             2 S GENOA               44.08N 92.61W
04/09/2017  E1.00 INCH       OLMSTED            MN   AMATEUR RADIO    

            AMATEUR RADIO REPORTED QUARTER SIZE HAIL TWO 
            MILES EAST OF OXBOW PARK. 

1015 PM     HAIL             2 SE DOUGLAS            44.09N 92.54W
04/09/2017  E1.50 INCH       OLMSTED            MN   AMATEUR RADIO    

            AMATEUR RADIO OPERATOR REPORTED PING PONG 
            BALL SIZE HAIL ON THE NORTHWEST SIDE OF 
            ROCHESTER. 

1015 PM     HAIL             2 E COCHRANE            44.23N 91.80W
04/09/2017  M1.75 INCH       BUFFALO            WI   LAW ENFORCEMENT  

            TIME ESTIMATED FROM RADAR. 

1017 PM     HAIL             2 SSE DOUGLAS           44.08N 92.57W
04/09/2017  M1.25 INCH       OLMSTED            MN   PUBLIC           

            PUBLIC VIA SOCIAL MEDIA MEASURED NEAR HALF 
            DOLLAR SIZE HAIL ON THE NORTHWEST SIDE OF 
            ROCHESTER. 

1019 PM     HAIL             COCHRANE                44.23N 91.84W
04/09/2017  E1.75 INCH       BUFFALO            WI   LAW ENFORCEMENT  

            TIME ESTIMATED FROM RADAR, REPORT RELAYED 
            THROUGH COUNTY DISPATCH. 

1019 PM     HAIL             1 SE DOUGLAS            44.10N 92.56W
04/09/2017  E1.00 INCH       OLMSTED            MN   PUBLIC           

            PUBLIC VIA SOCIAL MEDIA REPORTED QUARTER 
            SIZE HAIL ON THE NORTHWEST SIDE OF 
            ROCHESTER. 

1019 PM     HAIL             2 SSE DOUGLAS           44.08N 92.56W
04/09/2017  M1.25 INCH       OLMSTED            MN   BROADCAST MEDIA  

            BROADCAST MEDIA VIA SOCIAL MEDIA MEASURED 
            NEAR HALF DOLLAR SIZE HAIL ON THE NORTHWEST 
            SIDE OF ROCHESTER. 

1020 PM     HAIL             1 ENE GENOA             44.12N 92.60W
04/09/2017  E0.50 INCH       OLMSTED            MN   TRAINED SPOTTER  



1030 PM     HAIL             5 W HAYFIELD            43.89N 92.95W
04/09/2017  M1.00 INCH       DODGE              MN   PUBLIC           

            FACEBOOK PHOTO REPORT. 

1042 PM     HAIL             5 W GILMAN              45.16N 90.90W
04/09/2017  E0.88 INCH       TAYLOR             WI   PUBLIC           

            PUBLIC REPORTED NICKEL SIZE HAIL FIVE MILES 
            WEST OF GILMAN. 

1050 PM     HAIL             DODGE CENTER            44.03N 92.85W
04/09/2017  M2.00 INCH       DODGE              MN   PUBLIC           

            TWITTER PHOTO REPORT. 

1050 PM     HAIL             PRESTON                 43.68N 92.08W
04/09/2017  E0.88 INCH       FILLMORE           MN   LAW ENFORCEMENT  

            TIME ESTIMATED FROM RADAR. 

1052 PM     HAIL             INDEPENDENCE            44.36N 91.42W
04/09/2017  E1.00 INCH       TREMPEALEAU        WI   PUBLIC           

            REPORT RELAYED THROUGH COUNTY DISPATCH. 

1117 PM     HAIL             1 W STOCKTON            44.02N 91.79W
04/09/2017  E0.88 INCH       WINONA             MN   PUBLIC           



1125 PM     HAIL             5 N RUSHFORD            43.89N 91.75W
04/09/2017  E1.00 INCH       WINONA             MN   FIRE DEPT/RESCUE 



1130 PM     HAIL             1 E WINONA              44.05N 91.64W
04/09/2017  M0.88 INCH       WINONA             MN   PUBLIC           



1134 PM     HAIL             RIB LAKE                45.32N 90.20W
04/09/2017  M1.00 INCH       TAYLOR             WI   PUBLIC           

            PUBLIC VIA BROADCAST AND SOCIAL MEDIA 
            REPORTED QUARTER SIZE HAIL IN THE CITY OF 
            RIB LAKE. 

1153 PM     HAIL             TAYLOR                  44.32N 91.12W
04/09/2017  E0.50 INCH       JACKSON            WI   PUBLIC           

            REPORT RELAYED THROUGH COUNTY EMERGENCY 
            MANAGER. HAIL RANGED FROM PEA TO QUARTER 
            SIZE. ALSO ESTIMATED WIND GUSTS TO 50 MPH. 
            TIME ESTIMATED FROM RADAR. 

1210 AM     HAIL             GREENWOOD               44.77N 90.60W
04/10/2017  E0.25 INCH       CLARK              WI   PUBLIC           

            TIME ESTIMATED FROM RADAR. 

1215 AM     HAIL             OWEN                    44.95N 90.57W
04/10/2017  E0.75 INCH       CLARK              WI   PUBLIC           

            RELAYED VIA LAW ENFORCEMENT. 

1220 AM     HAIL             2 SSE RIPLINGER         44.80N 90.39W
04/10/2017  E0.75 INCH       CLARK              WI   TRAINED SPOTTER  

            TIME BASED ON RADAR. 

1222 AM     HAIL             NEILLSVILLE             44.56N 90.59W
04/10/2017  E0.88 INCH       CLARK              WI   LAW ENFORCEMENT  



0600 AM     HAIL             1 SSE BLACK RIVER FALLS 44.28N 90.84W
04/10/2017  E1.00 INCH       JACKSON            WI   PUBLIC           

            REPORT RELAYED THROUGH COUNTY EMERGENCY 
            MANAGER. NICKEL TO QUARTER SIZE HAIL. 

0621 AM     HAIL             5 SSE MERRILLAN         44.39N 90.82W
04/10/2017  E0.25 INCH       JACKSON            WI   LAW ENFORCEMENT

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Lake-effect Snow and Whiteout Conditions in the Great Lakes Region; Below-average Temperatures in the East

Summary of April 9, 2017 Large Hail Reports