Picturesque Thunderstorms and Damaging Hail:
June 20, 2007

A billowing thundercloud at dusk on June 20, 2007 at Lake Elmo Park Reserve looking northwest. Photo credits: Nancy and Pete Boulay.

A deep low pressure area centered over Thunder Bay on July 10 dragged a strong cold front across Minnesota. Behind this front were some very gusty non thunderstorm winds, more typical for April or may than July. Some peak wind gusts were 43 mph at both the Twin Cities and St. Cloud, 60 mph at the Duluth Airport, and 61mph at Fargo. Moorhead had one of the highest wind gusts in Minnesota with 66mph. There were 20,000 power outages in Duluth, sending many flocking to restaurants in town that still had their lights on. Just about all the outages were caused by trees falling on power lines. Falling trees also cut power in Fargo as well. Along with the winds, much cooler and drier air swept across Minnesota and put an end to the muggy 80's and 90's.

Listed below are severe weather reports for June 20, 2007 courtesy the Chanhassen National Weather Service.

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
526 AM CDT THU JUN 21 2007

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

0423 PM     HAIL             8 W CAMBRIDGE           45.56N 93.39W
06/20/2007  E0.75 INCH       ISANTI             MN   TRAINED SPOTTER

0428 PM     HAIL             6 S SAUK CENTRE         45.65N 94.96W
06/20/2007  E1.00 INCH       STEARNS            MN   TRAINED SPOTTER

0440 PM     HAIL             1 E ISANTI              45.49N 93.23W
06/20/2007  E0.88 INCH       ISANTI             MN   TRAINED SPOTTER

            INTERSECTION OF HIGHWAY 65 AND COUNTY ROAD 5

0445 PM     HAIL             ISANTI                  45.49N 93.25W
06/20/2007  E1.75 INCH       ISANTI             MN   TRAINED SPOTTER

0455 PM     HAIL             7 SW NORTH BRANCH       45.44N 93.08W
06/20/2007  E1.50 INCH       ISANTI             MN   TRAINED SPOTTER

0502 PM     HAIL             RICHMOND                45.45N 94.52W
06/20/2007  E0.75 INCH       STEARNS            MN   AMATEUR RADIO

0505 PM     HAIL             2 S RICHMOND            45.42N 94.52W
06/20/2007  E0.75 INCH       STEARNS            MN   LAW ENFORCEMENT

0510 PM     HAIL             2 N WYOMING             45.36N 93.00W
06/20/2007  E0.75 INCH       CHISAGO            MN   TRAINED SPOTTER

0510 PM     HAIL             4 S CHISAGO CITY        45.31N 92.89W
06/20/2007  E1.00 INCH       CHISAGO            MN   TRAINED SPOTTER

0512 PM     HAIL             5 NE FOREST LAKE        45.33N 92.91W
06/20/2007  E1.75 INCH       CHISAGO            MN   CO-OP OBSERVER

0515 PM     HAIL             CHISAGO CITY            45.37N 92.89W
06/20/2007  E1.25 INCH       CHISAGO            MN   TRAINED SPOTTER

0524 PM     HAIL             3 N WATKINS             45.36N 94.41W
06/20/2007  E1.00 INCH       STEARNS            MN   TRAINED SPOTTER

0525 PM     HAIL             4 E MILLTOWN            45.53N 92.42W
06/20/2007  E0.75 INCH       POLK               WI   TRAINED SPOTTER

0525 PM     HAIL             SARTELL                 45.62N 94.21W
06/20/2007  E1.25 INCH       STEARNS            MN   LAW ENFORCEMENT

0529 PM     HAIL             SAUK RAPIDS             45.59N 94.17W
06/20/2007  E1.00 INCH       BENTON             MN   TRAINED SPOTTER

0532 PM     HAIL             SARTELL                 45.62N 94.21W
06/20/2007  E1.75 INCH       STEARNS            MN   LAW ENFORCEMENT

0535 PM     HAIL             1 NE SAUK RAPIDS        45.60N 94.15W
06/20/2007  E2.00 INCH       BENTON             MN   TRAINED SPOTTER

0535 PM     HAIL             1 E ST CLOUD            45.55N 94.15W
06/20/2007  E1.00 INCH       SHERBURNE          MN   TRAINED SPOTTER

0537 PM     HAIL             SAUK RAPIDS             45.59N 94.17W
06/20/2007  E1.75 INCH       BENTON             MN   AMATEUR RADIO

            INTERSECTION OF HIGHWAY 10 AND 15

0540 PM     HAIL             1 NE SAUK RAPIDS        45.60N 94.15W
06/20/2007  E2.50 INCH       BENTON             MN   TRAINED SPOTTER

0540 PM     HAIL             4 SW SOUTH HAVEN        45.25N 94.27W
06/20/2007  E0.75 INCH       MEEKER             MN   TRAINED SPOTTER

0548 PM     HAIL             PRINCETON               45.57N 93.59W
06/20/2007  E1.75 INCH       MILLE LACS         MN   AMATEUR RADIO

0552 PM     HAIL             PRINCETON               45.57N 93.59W
06/20/2007  E1.00 INCH       MILLE LACS         MN   FIRE DEPT/RESCUE

0552 PM     HAIL             4 NW CUMBERLAND         45.58N 92.08W
06/20/2007  E1.00 INCH       BARRON             WI   TRAINED SPOTTER

0555 PM     HAIL             FOLEY                   45.66N 93.91W
06/20/2007  E1.75 INCH       BENTON             MN   TRAINED SPOTTER

0555 PM     HAIL             1 S CUMBERLAND          45.52N 92.02W
06/20/2007  E1.00 INCH       BARRON             WI   TRAINED SPOTTER

0557 PM     HAIL             4 E CUMBERLAND          45.54N 91.94W
06/20/2007  E0.88 INCH       BARRON             WI   TRAINED SPOTTER

0603 PM     HAIL             HOWARD LAKE             45.06N 94.07W
06/20/2007  E0.75 INCH       WRIGHT             MN   TRAINED SPOTTER

            NORTH SIDE NEAR HIGHWAY 12

0608 PM     HAIL             4 W CAMBRIDGE           45.56N 93.31W
06/20/2007  E1.75 INCH       ISANTI             MN   TRAINED SPOTTER

0609 PM     HAIL             7 W CAMBRIDGE           45.56N 93.37W
06/20/2007  E1.00 INCH       ISANTI             MN   TRAINED SPOTTER

0611 PM     HAIL             2 W CAMBRIDGE           45.56N 93.27W
06/20/2007  E1.00 INCH       ISANTI             MN   TRAINED SPOTTER

0614 PM     HAIL             HOWARD LAKE             45.06N 94.07W
06/20/2007  E1.00 INCH       WRIGHT             MN   TRAINED SPOTTER

0617 PM     FUNNEL CLOUD     2 W HOWARD LAKE         45.06N 94.11W
06/20/2007                   WRIGHT             MN   TRAINED SPOTTER

0618 PM     HAIL             HOWARD LAKE             45.06N 94.07W
06/20/2007  E0.75 INCH       WRIGHT             MN   TRAINED SPOTTER

            ON HIGHWAY 12 BETWEEN WAVERLY AND HOWARD LAKE

0620 PM     HAIL             2 W CAMBRIDGE           45.56N 93.27W
06/20/2007  E1.75 INCH       ISANTI             MN   TRAINED SPOTTER

0622 PM     HAIL             CAMBRIDGE               45.56N 93.23W
06/20/2007  E1.00 INCH       ISANTI             MN   TRAINED SPOTTER

            DONWTOWN OFF OF MAIN STREET

0622 PM     HAIL             3 E WINSTED             44.97N 93.99W
06/20/2007  E0.75 INCH       CARVER             MN   PUBLIC

            WINDOWS BROKEN

0623 PM     HAIL             CAMBRIDGE               45.56N 93.23W
06/20/2007  E1.00 INCH       ISANTI             MN   TRAINED SPOTTER

0623 PM     TSTM WND DMG     CAMBRIDGE               45.56N 93.23W
06/20/2007                   ISANTI             MN   TRAINED SPOTTER

            TREE LIMBS DOWN

0623 PM     TSTM WND DMG     CAMBRIDGE               45.56N 93.23W
06/20/2007                   ISANTI             MN   TRAINED SPOTTER

            TREE LIMBS DOWN

0623 PM     HAIL             CAMBRIDGE               45.56N 93.23W
06/20/2007  E0.88 INCH       ISANTI             MN   TRAINED SPOTTER

0624 PM     HAIL             CAMBRIDGE               45.56N 93.23W
06/20/2007  E1.00 INCH       ISANTI             MN   TRAINED SPOTTER

            300 AND 23RD LN AND COUNTY ROAD 17

0625 PM     HAIL             1 E MONTROSE            45.07N 93.89W
06/20/2007  E1.75 INCH       WRIGHT             MN   FIRE DEPT/RESCUE

            HIGHWAYS 25 AND 112

0626 PM     HAIL             CAMBRIDGE               45.56N 93.23W
06/20/2007  E1.75 INCH       ISANTI             MN   TRAINED SPOTTER

0627 PM     HAIL             2 W TONY                45.48N 91.04W
06/20/2007  E1.00 INCH       RUSK               WI   TRAINED SPOTTER

0628 PM     HAIL             CAMBRIDGE               45.56N 93.23W
06/20/2007  E0.88 INCH       ISANTI             MN   TRAINED SPOTTER

0630 PM     HAIL             2 N WATERTOWN           44.99N 93.85W
06/20/2007  E2.75 INCH       WRIGHT             MN   LAW ENFORCEMENT

0632 PM     HAIL             HARRIS                  45.60N 92.99W
06/20/2007  E1.75 INCH       CHISAGO            MN   LAW ENFORCEMENT

0633 PM     HAIL             WATERTOWN               44.96N 93.85W
06/20/2007  E1.75 INCH       CARVER             MN   LAW ENFORCEMENT

0634 PM     HAIL             3 W NORTH BRANCH        45.51N 93.04W
06/20/2007  E2.00 INCH       ISANTI             MN   TRAINED SPOTTER

            ON HIGHWAY 95

0634 PM     HAIL             2 N NORTH BRANCH        45.54N 92.98W
06/20/2007  E0.88 INCH       CHISAGO            MN   TRAINED SPOTTER

0635 PM     HAIL             NORTH BRANCH            45.51N 92.98W
06/20/2007  E0.75 INCH       CHISAGO            MN   TRAINED SPOTTER

0640 PM     HAIL             WACONIA                 44.85N 93.79W
06/20/2007  E1.00 INCH       CARVER             MN   NWS EMPLOYEE

0640 PM     HAIL             HARRIS                  45.60N 92.99W
06/20/2007  E4.25 INCH       CHISAGO            MN   LAW ENFORCEMENT

0642 PM     HAIL             1 S ST BONIFACIUS       44.89N 93.75W
06/20/2007  E1.00 INCH       HENNEPIN           MN   TRAINED SPOTTER

0647 PM     HAIL             WAVERLY                 45.07N 93.97W
06/20/2007  E1.00 INCH       WRIGHT             MN   NWS EMPLOYEE

0653 PM     FUNNEL CLOUD     2 S CUSHING             45.09N 92.35W
06/20/2007                   ST. CROIX          WI   AMATEUR RADIO

0705 PM     HAIL             CHASKA                  44.82N 93.61W
06/20/2007  E1.75 INCH       CARVER             MN   TRAINED SPOTTER

0715 PM     HAIL             1 SW CAMBRIDGE          45.55N 93.24W
06/20/2007  M1.75 INCH       ISANTI             MN   TRAINED SPOTTER

0715 PM     HAIL             CAMBRIDGE               45.56N 93.23W
06/20/2007  M1.75 INCH       ISANTI             MN   TRAINED SPOTTER

0720 PM     HAIL             3 SW PRIOR LAKE         44.70N 93.48W
06/20/2007  E1.00 INCH       SCOTT              MN   TRAINED SPOTTER

            AT INTERSECTION OF HIGHWAY 13 AND 17

0722 PM     HAIL             5 E JORDAN              44.67N 93.53W
06/20/2007  E1.75 INCH       SCOTT              MN   LAW ENFORCEMENT

0729 PM     HAIL             2 N COLOGNE             44.80N 93.79W
06/20/2007  E0.75 INCH       CARVER             MN   TRAINED SPOTTER

0735 PM     HAIL             COLOGNE                 44.77N 93.79W
06/20/2007  E1.50 INCH       CARVER             MN   AMATEUR RADIO

0748 PM     HAIL             EDEN PRAIRIE            44.85N 93.46W
06/20/2007  E0.75 INCH       HENNEPIN           MN   TRAINED SPOTTER

0750 PM     HAIL             2 SW CARVER             44.74N 93.66W
06/20/2007  E1.00 INCH       CARVER             MN   NWS EMPLOYEE

0754 PM     HAIL             2 N ELKO                44.59N 93.32W
06/20/2007  E1.75 INCH       SCOTT              MN   TRAINED SPOTTER

0755 PM     HAIL             JORDAN                  44.67N 93.63W
06/20/2007  E0.88 INCH       SCOTT              MN   NWS EMPLOYEE

0758 PM     HAIL             2 N NEW PRAGUE          44.58N 93.57W
06/20/2007  E1.75 INCH       SCOTT              MN   TRAINED SPOTTER

0818 PM     TSTM WND DMG     NEW PRAGUE              44.55N 93.57W
06/20/2007                   SCOTT              MN   AMATEUR RADIO

            6 - 8 INCH BRANCHES DOWN

0819 PM     HAIL             LONSDALE                44.48N 93.43W
06/20/2007  E0.75 INCH       RICE               MN   TRAINED SPOTTER

0821 PM     HAIL             ARLINGTON               44.61N 94.08W
06/20/2007  E1.00 INCH       SIBLEY             MN   TRAINED SPOTTER

0825 PM     HAIL             CORNELL                 45.16N 91.15W
06/20/2007  E0.75 INCH       CHIPPEWA           WI   PUBLIC

0829 PM     HAIL             LONSDALE                44.48N 93.43W
06/20/2007  E1.00 INCH       RICE               MN   TRAINED SPOTTER

0830 PM     HAIL             10 W BELLE PLAINE       44.62N 93.97W
06/20/2007  E0.75 INCH       SIBLEY             MN   NWS EMPLOYEE

0839 PM     HAIL             BELLE PLAINE            44.62N 93.76W
06/20/2007  E1.25 INCH       SCOTT              MN   AMATEUR RADIO

0852 PM     HAIL             NEW PRAGUE              44.55N 93.57W
06/20/2007  M1.75 INCH       SCOTT              MN   TRAINED SPOTTER

0852 PM     HAIL             1 W NEW PRAGUE          44.55N 93.59W
06/20/2007  E0.75 INCH       SCOTT              MN   AMATEUR RADIO

0853 PM     HAIL             FARIBAULT               44.30N 93.27W
06/20/2007  E0.88 INCH       RICE               MN   TRAINED SPOTTER

0903 PM     HAIL             NEW PRAGUE              44.55N 93.57W
06/20/2007  M1.00 INCH       SCOTT              MN   TRAINED SPOTTER

0925 PM     HAIL             3 NE OWATONNA           44.12N 93.18W
06/20/2007  M1.00 INCH       STEELE             MN   TRAINED SPOTTER

0940 PM     HAIL             HUDSON                  44.97N 92.74W
06/20/2007  M0.75 INCH       ST. CROIX          WI   TRAINED SPOTTER

0943 PM     HAIL             NEW RICHMOND            45.12N 92.54W
06/20/2007  E1.00 INCH       ST. CROIX          WI   TRAINED SPOTTER

0949 PM     HAIL             WATERVILLE              44.22N 93.57W
06/20/2007  M1.00 INCH       LE SUEUR           MN   TRAINED SPOTTER

0957 PM     HAIL             RIVER FALLS             44.86N 92.62W
06/20/2007  M1.00 INCH       PIERCE             WI   TRAINED SPOTTER

0958 PM     HAIL             4 S ST PAUL             44.89N 93.10W
06/20/2007  M0.88 INCH       DAKOTA             MN   TRAINED SPOTTER

1004 PM     HAIL             INVER GROVE HEIGHTS     44.83N 93.06W
06/20/2007  M0.75 INCH       DAKOTA             MN   TRAINED SPOTTER

1009 PM     HAIL             3 SW ELLSWORTH          44.71N 92.52W
06/20/2007  M1.25 INCH       PIERCE             WI   TRAINED SPOTTER

1009 PM     HAIL             6 N ELYSIAN             44.29N 93.68W
06/20/2007  M0.88 INCH       LE SUEUR           MN   TRAINED SPOTTER

1018 PM     HAIL             6 W RIVER FALLS         44.86N 92.74W
06/20/2007  M0.88 INCH       PIERCE             WI   TRAINED SPOTTER

1019 PM     HAIL             2 E ELLSWORTH           44.74N 92.44W
06/20/2007  M0.75 INCH       PIERCE             WI   TRAINED SPOTTER

1024 PM     HAIL             HASTINGS                44.73N 92.85W
06/20/2007  M0.75 INCH       DAKOTA             MN   TRAINED SPOTTER

1026 PM     HAIL             HASTINGS                44.73N 92.85W
06/20/2007  M1.75 INCH       DAKOTA             MN   TRAINED SPOTTER

1026 PM     HAIL             HASTINGS                44.73N 92.85W
06/20/2007  M1.50 INCH       DAKOTA             MN   TRAINED SPOTTER

1041 PM     HAIL             4 NW MAIDEN ROCK        44.61N 92.37W
06/20/2007  M0.75 INCH       PIERCE             WI   TRAINED SPOTTER

1139 PM     FUNNEL CLOUD     HARTLAND                43.80N 93.49W
06/20/2007                   FREEBORN           MN   TRAINED SPOTTER

            WOULD CONTINUE THROUGH 1145 PM AND REACH HALFWAY TO THE
            GROUND.

0200 AM     HAIL             RED WING                44.58N 92.60W
06/21/2007  M1.75 INCH       GOODHUE            MN   TRAINED SPOTTER

0225 AM     HAIL             ARLINGTON               44.61N 94.08W
06/21/2007  M1.00 INCH       SIBLEY             MN   TRAINED SPOTTER
-

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URL: http://climate.umn.edu/doc/journal/storm070620.htm
Last modified: June 20, 2007