Present Climate Conditions


Heavy Rain and Tornadoes: August 16-17, 2017

24-Hour Precipitation Totals Ending August 17, 2017
24-Hour Precipitation Totals Ending August 17, 2017
Courtesy: MNDNR State Climatology Office

 

A strong low pressure system moved through the region and produced torrential rains, along with several generally small tornadoes on August 16 and 17, 2017.

The rains came in multiple waves, with the first advancing across southern and eastern portions of Minnesota during the early morning hours on the 16th, resulting in up to an inch of rainfall in some areas. The main event, however, unfolded during the afternoon and evening hours, as storm cells blossomed, intensified, and trudged northward and northwestward across southern and central Minnesota. Some of the stronger cells produced brief tornadoes from near Mankato to about 50 miles south and west of the Twin Cities. With these storms and others in their vicinity, the rains came down hard, often producing up to two inches in 30-45 minutes and causing minor flooding. The tornado threat calmed down as night fell, but the heavy rains continued and eventually stalled out over portions of southwestern through and Minnesota, persisting for several hours into the 17th before weakening and moving away.

This was the most widespread and intense rainfall event of the year (to date) in Minnesota, with 1-2 inch totals covering approximately 50,000 square miles, or about 60% of the state. Totals of greater than three inches were concentrated in a multi-county area in western and central Minnesota, generally centered on the Minnesota River. The largest official rainfall reports came from Redwood Falls, where the airport recorded 9.45 inches, and a volunteer with the National Weather Service's cooperative observer program reported 8.12 inches-- both in 24 hours. These are the largest official 24-hour precipitation totals in Minnesota since June 20th, 2012, when Two Harbors reported 10.45 inches during the worst flood in that area's recorded history.  

Fortunately, the tornadoes were short-lived and relatively weak. Of the eight confirmed by the National Weather Service in Chanhassen, seven were rated at EF-0. The lone EF-1 tornado damaged a farmstead near the Nicollet-Sibley county border, in the township of New Sweden.

One unusual aspect of this event was its noticeable lack of thunder. Very little lightning was reported, despite a swarming, thunderstorm-like appearance on radar. Although scientists have not concluded exactly what causes storms to electrify, they have observed that ice crystals, hail, and other frozen objects must be abundant in clouds for lightning to be present. In the case of this storm event, the clouds remained both too shallow and too warm to generate large amounts of cloud-ice, the lack of which may have prevented the "charge separation" required to create an electrical field within the storm environment. Although rainy days without lightning and thunder are quite common in Minnesota, intense rainfall events without lightning and thunder are not. Such conditions are more common in tropical weather systems, which contain massive amounts of heat, and therefore produce little or no cloud-ice and little or no lightning.

You can learn more about the science of lightning here.      

Below is a list of rainfall reports gathered by the National Weather Service.

Public Information Statement
National Weather Service Twin Cities/Chanhassen MN
1139 AM CDT Thu Aug 17 2017

...Rainfall Reports from Past 24 Hours...

Location                     Amount    Time/Date       Provider

...Minnesota...

...Anoka County...
Coon Rapids 2ESE             2.85 in   1050 AM 08/17   CWOP
Ramsey 2ESE                  1.71 in   1043 AM 08/17   CWOP
Anoka 1S                     1.65 in   0600 AM 08/17   COCORAHS
St. Francis                  1.50 in   0800 AM 08/17   COCORAHS
St. Francis 1S               1.43 in   1033 AM 08/17   CWOP
Coon Rapids 1NW              1.41 in   1050 AM 08/17   CWOP
Anoka 2SE                    1.28 in   1053 AM 08/17   CWOP
Coon Rapids 3NNE             1.27 in   0700 AM 08/17   COCORAHS
Columbia Heights 1WSW        1.18 in   1055 AM 08/17   CWOP
Ham Lake  2E                 1.18 in   0700 AM 08/17   COCORAHS
Circle Pines 1E              1.12 in   0700 AM 08/17   COCORAHS

...Benton County...
Royalton 2S                  2.09 in   1000 AM 08/17   HADS
Rice                         1.40 in   0700 AM 08/17   COOP

...Blue Earth County...
Mankato AP                   1.51 in   0656 AM 08/17   AWOS
Skyline                      1.13 in   0700 AM 08/17   COCORAHS

...Brown County...
New Ulm                      3.30 in   0500 AM 08/17   COCORAHS
Springfield 1NW              2.94 in   1041 AM 08/17   CWOP
Springfield                  2.52 in   1030 AM 08/17   GOES
Cobden                       1.73 in   1045 AM 08/17   GOES
Sveadahl 5NNW                1.69 in   0700 AM 08/17   COCORAHS
Leavenworth                  1.67 in   1045 AM 08/17   GOES

...Carver County...
Chanhassen                   2.85 in   0700 AM 08/17   COCORAHS
Chanhassen (NWS)             2.62 in   0700 AM 08/17   COOP
Jordan                       2.15 in   1045 AM 08/17   GOES
Victoria 2ENE                2.08 in   0800 AM 08/17   COCORAHS
Chaska 1ESE                  2.07 in   0655 AM 08/17   COCORAHS
Carver 3S                    1.77 in   0949 AM 08/17   RAWS
Carver 1W                    1.70 in   0700 AM 08/17   COCORAHS
Waconia 1.1 SW               1.50 in   0700 AM 08/17   COCORAHS
Waconia                      1.47 in   0600 AM 08/17   UCOOP
Chanhassen 2SW               1.38 in   0700 AM 08/17   UCOOP
Mayer                        1.21 in   1030 AM 08/17   UCOOP
Victoria 1WSW                1.17 in   1052 AM 08/17   CWOP
Victoria 1WSW                1.14 in   0700 AM 08/17   COCORAHS

...Chippewa County...
Montevideo                   3.91 in   0700 AM 08/17   COCORAHS
Montevideo 1S                3.78 in   1050 AM 08/17   CWOP
Watson 1 NE                  3.10 in   0800 AM 08/17   COOP
Laq Qui Parle Dam            2.49 in   1000 AM 08/17   GOES
Milan 5E                     2.31 in   1045 AM 08/17   USARMY-COE

...Chisago County...
Scandia 3NNE                 1.58 in   1055 AM 08/17   CWOP
4 NW Scandia                 1.16 in   0700 AM 08/17   COCORAHS
Center City                  1.15 in   0700 AM 08/17   COCORAHS
Branch 8ENE                  1.00 in   1050 AM 08/17   CWOP

...Dakota County...
Burnsville 3ENE              2.51 in   0620 AM 08/17   COCORAHS
Burnsville 3SSW              2.24 in   0640 AM 08/17   COCORAHS
Hastings 1WSW                1.75 in   0639 AM 08/17   COCORAHS
Hastings (L/D 2)             1.58 in   0800 AM 08/17   COOP
Inver Grove Hgts 1ENE        1.55 in   0700 AM 08/17   COCORAHS
Hastings 1SSW                1.55 in   0500 AM 08/17   COCORAHS
Eagan 1NW                    1.53 in   0620 AM 08/17   COCORAHS
Lakeville 2WSW               1.47 in   0755 AM 08/17   COCORAHS
South St. Paul AP            1.41 in   0653 AM 08/17   AWOS
Rosemount 3W                 1.37 in   0732 AM 08/17   COCORAHS
Rosemount 3SW                1.27 in   0620 AM 08/17   COCORAHS
Eagan 2SE                    1.26 in   1059 AM 08/17   CWOP
Inver Grove Hgts 1WSW        1.21 in   0745 AM 08/17   COCORAHS
3 E Apple Valley             1.21 in   0640 AM 08/17   COCORAHS
Lakeville 2NE                1.20 in   1048 AM 08/17   CWOP
Apple Valley 2E              1.19 in   0600 AM 08/17   COCORAHS
Rosemount 3WNW               1.15 in   0700 AM 08/17   COCORAHS
Apple Valley 2NNW            1.14 in   1225 AM 08/17   COCORAHS
Rosemount 2NW                1.11 in   0700 AM 08/17   COCORAHS
Eagan 2ESE                   1.07 in   1050 AM 08/17   CWOP
Miesville 2WSW               1.03 in   0605 AM 08/17   COCORAHS

...Douglas County...
Nelson 2WSW                  1.31 in   0700 AM 08/17   COCORAHS
Farwell 5N                   1.27 in   0730 AM 08/17   COCORAHS
Brandon 0.4 WNW              1.17 in   0800 AM 08/17   COCORAHS
Alexandria 1ENE              1.11 in   0700 AM 08/17   COCORAHS
Millerville 5E               1.00 in   0800 AM 08/17   COCORAHS

...Goodhue County...
Lake City 1NNW               2.98 in   0700 AM 08/17   COCORAHS
Lake City 2NW                2.01 in   1049 AM 08/17   CWOP
Red Wing (L/D 3)             2.01 in   0800 AM 08/17   COOP
Frontenac                    2.00 in   1045 AM 08/17   UCOOP
Wanamingo                    1.61 in   1030 AM 08/17   GOES
Sogn                         1.43 in   1030 AM 08/17   GOES
Vasa 5E                      1.35 in   0700 AM 08/17   COCORAHS
Wanamingo 3SSE               1.31 in   0700 AM 08/17   COCORAHS
Zumbrota 2NNE                1.24 in   0515 AM 08/17   COCORAHS
Red Wing 4SE                 1.21 in   0800 AM 08/17   COCORAHS
Wanamingo 4SSE               1.17 in   0800 AM 08/17   COCORAHS
Dennison 6E                  1.11 in   0700 AM 08/17   COCORAHS
Vasa 5NNE                    1.04 in   0800 AM 08/17   COCORAHS
Red Wing 4W                  1.03 in   0700 AM 08/17   COCORAHS
Cannon Falls 2S              1.02 in   1030 AM 08/17   GOES
Zumbrota                     1.01 in   0700 AM 08/17   COOP

...Hennepin County...
Eden Prairie 2WSW            2.79 in   0700 AM 08/17   COCORAHS
Eden Prairie 3SE             2.64 in   0857 AM 08/17   COCORAHS
Chanhassen 2SE               2.61 in   0800 AM 08/17   COCORAHS
Long Lake 1NW                2.56 in   0600 AM 08/17   COCORAHS
Saint Louis Park 2ESE        2.42 in   0915 AM 08/17   COCORAHS
Long Lake                    2.34 in   0700 AM 08/17   COCORAHS
Eden Prairie 3ESE            2.12 in   1050 AM 08/17   CWOP
Golden Valley                2.10 in   0555 AM 08/17   COCORAHS
Lake Minnetonka 1WSW         2.08 in   0500 AM 08/17   COCORAHS
Eden Prairie 2E              2.07 in   0800 AM 08/17   COCORAHS
Osseo                        2.07 in   0700 AM 08/17   COCORAHS
Long Lake 4SW                2.05 in   0700 AM 08/17   COCORAHS
Brooklyn Park 1W             2.00 in   1050 AM 08/17   CWOP
Plymouth 1E                  2.00 in   0800 AM 08/17   COCORAHS
Plymouth 2ENE                2.00 in   0700 AM 08/17   COCORAHS
Hopkins                      1.98 in   0800 AM 08/17   COCORAHS
Eden Prairie AP              1.93 in   0653 AM 08/17   ASOS
Golden Valley                1.93 in   0700 AM 08/17   COCORAHS
Brooklyn Center 1E           1.92 in   0700 AM 08/17   COCORAHS
Champlin 1SW                 1.92 in   0700 AM 08/17   COCORAHS
Osseo 1 NW                   1.87 in   0800 AM 08/17   COCORAHS
New Hope 1.9 S               1.83 in   1030 AM 08/17   COCORAHS
Edina 1SW                    1.82 in   0807 AM 08/17   COCORAHS
Robbinsdale 2ESE             1.80 in   0700 AM 08/17   COCORAHS
Falcon Heights 3SSW          1.77 in   0700 AM 08/17   COCORAHS
Robbinsdale                  1.76 in   0700 AM 08/17   COCORAHS
Crystal AP                   1.70 in   0653 AM 08/17   ASOS
St. Louis Park               1.70 in   0700 AM 08/17   COCORAHS
Minneapolis 4NNW             1.68 in   0700 AM 08/17   COCORAHS
Lake Minnetonka 1WSW         1.60 in   1056 AM 08/17   CWOP
Robbinsdale                  1.60 in   1058 AM 08/17   CWOP
Maple Grove 1SSW             1.60 in   0715 AM 08/17   COCORAHS
Minneapolis 1 WSW            1.59 in   0800 AM 08/17   COCORAHS
Golden Valley 2WSW           1.59 in   0700 AM 08/17   COCORAHS
Brooklyn Park 2E             1.58 in   0800 AM 08/17   COCORAHS
Richfield 3ENE               1.57 in   0600 AM 08/17   COCORAHS
Lake Minnetonka Area         1.56 in   0630 AM 08/17   COCORAHS
Minneapolis-St. Paul AP-MSP  1.56 in   0653 AM 08/17   ASOS
Minnetonka                   1.52 in   1040 AM 08/17   CWOP
Plymouth 3 NW                1.52 in   0900 AM 08/17   COCORAHS
Loretto 2NW                  1.50 in   1040 AM 08/17   CWOP
Maple Grove 1N               1.49 in   0900 AM 08/17   COCORAHS
Maple Grove 1SSW             1.48 in   0700 AM 08/17   COCORAHS
St. Louis Park 1E            1.45 in   1055 AM 08/17   CWOP
Richfield 3ENE               1.43 in   0700 AM 08/17   COCORAHS
Minneapolis (Target Fld)     1.42 in   0800 AM 08/17   COCORAHS
Maple Grove 1N               1.41 in   0800 AM 08/17   COCORAHS
Bloomington 3W               1.36 in   1043 AM 08/17   CWOP
Dayton 1NNE                  1.29 in   0700 AM 08/17   COCORAHS
Edina 1 N                    1.25 in   0700 AM 08/17   COCORAHS
Minneapolis 3SE              1.25 in   0610 AM 08/17   COCORAHS
Columbia Hgts 1S             1.23 in   0700 AM 08/17   COCORAHS
Plymouth 2WSW                1.21 in   1046 AM 08/17   CWOP
Maple Grove 3SW              1.18 in   0630 AM 08/17   COCORAHS
Richfield 3NNE               1.15 in   1049 AM 08/17   CWOP
Bloomington 1 ESE            1.14 in   0800 AM 08/17   COCORAHS
Edina 1SE                    1.06 in   0650 AM 08/17   COCORAHS
St. Bonifacius 4ENE          1.01 in   1053 AM 08/17   CWOP
Minneapolis Dwtn (Miss R)    1.00 in   0800 AM 08/17   COOP
Edina 1SE                    1.00 in   0700 AM 08/17   COCORAHS

...Isanti County...
Cambridge                    1.11 in   1100 AM 08/17   CWOP

...Kanabec County...
Mora                         1.09 in   1000 AM 08/17   HADS

...Kandiyohi County...
Willmar 5N                   4.11 in   0600 AM 08/17   COOP
Willmar                      4.10 in   0830 AM 08/17   COCORAHS
Pennock 6NNE                 3.89 in   0700 AM 08/17   COCORAHS
Willmar 1 ESE                3.82 in   0800 AM 08/17   COCORAHS
Willmar 2ENE                 3.43 in   1044 AM 08/17   CWOP
New London 6WSW              3.20 in   0700 AM 08/17   COCORAHS
Regal                        2.74 in   0700 AM 08/17   COCORAHS

...Lac qui Parle County...
Montevideo 2SW               3.62 in   1000 AM 08/17   USARMY-COE
Montevideo 1SW               3.57 in   0700 AM 08/17   COOP
Providence                   3.04 in   1030 AM 08/17   GOES
Dawson                       2.70 in   0700 AM 08/17   COOP
Dawson                       2.66 in   1030 AM 08/17   GOES
Madison                      2.30 in   0800 AM 08/17   COOP

...Le Sueur County...
New Prague                   1.92 in   0700 AM 08/17   COCORAHS
Montgomery 3E                1.89 in   0700 AM 08/17   COCORAHS

...Martin County...
Fairmont AP                  1.03 in   0656 AM 08/17   AWOS

...McLeod County...
Brownton                     2.70 in   0800 AM 08/17   COOP
Brownton                     2.67 in   1030 AM 08/17   GOES
Hutchinson 5N                2.29 in   0645 AM 08/17   COCORAHS
Glencoe 3WSW                 2.13 in   0709 AM 08/17   COCORAHS
Hutchinson AP                1.90 in   0653 AM 08/17   AWOS
Silver Lake 1NNW             1.83 in   0700 AM 08/17   COCORAHS
Hutchinson                   1.80 in   1045 AM 08/17   UCOOP
Glencoe                      1.70 in   0800 AM 08/17   COCORAHS
Glencoe 3NW                  1.67 in   0700 AM 08/17   COCORAHS
Hutchinson 1 SSE             1.61 in   0700 AM 08/17   COCORAHS
Hutchinson 1NW               1.58 in   0700 AM 08/17   COCORAHS
Lester Prairie               1.37 in   1045 AM 08/17   HADS

...Meeker County...
Cosmos 1E                    3.18 in   1030 AM 08/17   GOES
Litchfield 3S                2.82 in   1011 AM 08/17   RAWS
Manannah                     2.41 in   1030 AM 08/17   GOES
3 WSW Watkins                2.10 in   0900 AM 08/17   COCORAHS
Dassel                       1.86 in   0700 AM 08/17   COCORAHS

...Mille Lacs County...
Onamia 4WNW                  1.47 in   0746 AM 08/17   COCORAHS
Milaca                       1.44 in   0730 AM 08/17   COOP
Princeton 1NE                1.32 in   0700 AM 08/17   COCORAHS
Princeton 1NNE               1.27 in   1032 AM 08/17   CWOP
Milaca 7NNW                  1.27 in   1000 AM 08/17   HADS
Bock 3WNW                    1.19 in   1050 AM 08/17   CWOP
Foreston 1WNW                1.16 in   1053 AM 08/17   CWOP
Onamia (RS)                  1.14 in   0800 AM 08/17   COOP
Princeton 1WNW               1.06 in   1045 AM 08/17   HADS

...Morrison County...
Little Falls 2SSE            2.60 in   1007 AM 08/17   RAWS
Motley 6SE                   2.34 in   0700 AM 08/17   COCORAHS
Randall                      2.17 in   1031 AM 08/17   CWOP
Sobieski 3E                  2.16 in   1000 AM 08/17   HADS
Camp Ripley 4E               1.94 in   0800 AM 08/17   COCORAHS
Bowlus 2E                    1.86 in   1000 AM 08/17   HADS
Royalton 4E                  1.62 in   1015 AM 08/17   HADS
Pine Center 4SSE             1.52 in   0700 AM 08/17   COCORAHS
Granite Ledge 7N             1.39 in   1048 AM 08/17   CWOP

...Nicollet County...
New Ulm 3SE                  3.33 in   0423 AM 08/17   COOP
St. Peter 6WSW               1.22 in   0700 AM 08/17   COCORAHS
Kasota 4WSW                  1.10 in   0653 AM 08/17   COCORAHS

...Ramsey County...
St. Paul Dwtn AP             1.97 in   0653 AM 08/17   ASOS
St. Paul (UMN-AG Exp Frm)    1.92 in   0800 AM 08/17   COOP
Falcon Hgts 1SSW             1.88 in   0700 AM 08/17   COCORAHS
Falcon Hgts                  1.87 in   1015 AM 08/17   HADS
North St Paul 1NNW           1.82 in   0630 AM 08/17   COCORAHS
Roseville 1NW                1.72 in   0700 AM 08/17   COCORAHS
St. Paul 3WNW                1.66 in   0730 AM 08/17   COCORAHS
Roseville 2WNW               1.56 in   0600 AM 08/17   COCORAHS
Mendota Hgts 2WNW            1.44 in   0700 AM 08/17   COCORAHS
Roseville                    1.40 in   0615 AM 08/17   COCORAHS
St. Paul 1N                  1.32 in   0515 AM 08/17   COCORAHS
North St. Paul 1WNW          1.24 in   0700 AM 08/17   COCORAHS
Roseville 2ESE               1.23 in   1047 AM 08/17   CWOP
1 E Little Canada            1.20 in   0700 AM 08/17   COCORAHS
St. Paul 1SW                 1.15 in   1050 AM 08/17   CWOP
St. Paul 1WSW                1.13 in   1051 AM 08/17   CWOP
Roseville 2ESE               1.09 in   0700 AM 08/17   COCORAHS
North Oaks 1WNW              1.09 in   0700 AM 08/17   COCORAHS

...Redwood County...
Redwood Falls AP             9.45 in   0653 AM 08/17   ASOS
Redwood Falls                8.12 in   0630 AM 08/17   COOP
Lucan                        4.58 in   0544 AM 08/17   COCORAHS
Vesta                        3.98 in   0900 AM 08/17   COOP
Redwood Falls                3.97 in   1030 AM 08/17   GOES
Wabasso 3E                   2.05 in   0700 AM 08/17   COCORAHS
Lamberton                    1.26 in   1030 AM 08/17   GOES

...Renville County...
Morton                       6.82 in   1030 AM 08/17   GOES
Beaver Falls                 6.47 in   1045 AM 08/17   GOES
Maynard                      6.07 in   1045 AM 08/17   GOES
Bird Island 7SSE             5.88 in   0630 AM 08/17   COCORAHS
Delhi 5NE                    5.75 in   0700 AM 08/17   COCORAHS
Danube 2WNW                  5.70 in   0700 AM 08/17   COCORAHS
Granite Falls                5.26 in   1045 AM 08/17   UCOOP
Lake Lillian 5SE             3.85 in   0645 AM 08/17   COCORAHS

...Rice County...
Veseli 1W                    2.03 in   0500 AM 08/17   COCORAHS
Montgomery 3ENE              2.01 in   0530 AM 08/17   COCORAHS
Veseli 2E                    1.74 in   0700 AM 08/17   COCORAHS
Morristown                   1.07 in   1053 AM 08/17   CWOP
Morristown                   1.02 in   1030 AM 08/17   GOES

...Scott County...
Prior Lake 1WSW              2.48 in   0700 AM 08/17   COCORAHS
Prior Lake 2WSW              2.19 in   1047 AM 08/17   CWOP
Shakopee 1NW                 2.06 in   1057 AM 08/17   CWOP
Jordan 2NE                   2.04 in   0630 AM 08/17   COCORAHS
Jordan 1SW                   1.73 in   0530 AM 08/17   COOP
Savage 2WNW                  1.64 in   1046 AM 08/17   CWOP
New Market 4W                1.61 in   0653 AM 08/17   COCORAHS
New Prague                   1.58 in   1100 AM 08/17   CWOP
Jordan 6E                    1.56 in   1052 AM 08/17   CWOP
Elko                         1.12 in   1055 AM 08/17   CWOP
Prior Lake                   1.09 in   1100 AM 08/17   CWOP
Savage                       1.05 in   1046 AM 08/17   CWOP

...Sherburne County...
Zimmerman                    1.44 in   1053 AM 08/17   CWOP
Princeton 2WSW               1.39 in   0400 AM 08/17   COCORAHS
Elk River                    1.19 in   0900 AM 08/17   COCORAHS
St. Cloud AP                 1.15 in   0653 AM 08/17   ASOS
Elk River 1SSW               1.14 in   1049 AM 08/17   CWOP
Santiago 3E                  1.09 in   1020 AM 08/17   RAWS
Elk River                    1.06 in   0700 AM 08/17   COOP

...Sibley County...
Arlington                    1.43 in   1045 AM 08/17   GOES

...Stearns County...
Melrose                      3.18 in   0700 AM 08/17   COOP
St. Martin 1NW               2.95 in   1000 AM 08/17   HADS
Brooten 3NNE                 2.71 in   1015 AM 08/17   HADS
Paynesville 1SSW             2.54 in   0700 AM 08/17   COCORAHS
Westport 3ESE                2.48 in   0700 AM 08/17   COCORAHS
Sauk Centre AP               2.02 in   0653 AM 08/17   AWOS
Kimball 3N                   1.77 in   0600 AM 08/17   COOP
Rice 1W                      1.68 in   0700 AM 08/17   COCORAHS
St. Cloud 5W                 1.44 in   0745 AM 08/17   COCORAHS
Avon 4ESE                    1.26 in   1050 AM 08/17   CWOP
St. Cloud (SCSU)             1.25 in   0600 AM 08/17   UCOOP
Clearwater 3W                1.11 in   1050 AM 08/17   CWOP

...Stevens County...
Morris (AG Exp Frm)          2.01 in   0800 AM 08/17   COOP
Morris 1 SSE                 1.77 in   0700 AM 08/17   COCORAHS
Donnelly 2WNW                1.62 in   0700 AM 08/17   COCORAHS
Morris 4SW                   1.49 in   1039 AM 08/17   CWOP

...Swift County...
Benson                       2.13 in   1045 AM 08/17   GOES
Benson                       1.77 in   1030 AM 08/17   GOES
Clontarf                     1.49 in   1045 AM 08/17   GOES

...Todd County...
Swanville                    2.75 in   0700 AM 08/17   COCORAHS
Long Prairie                 2.51 in   0600 AM 08/17   COOP
Philbrook 4SSW               2.00 in   1045 AM 08/17   GOES
Hewitt 1NNW                  1.35 in   0640 AM 08/17   COCORAHS

...Waseca County...
Morristown 2SW               1.13 in   0630 AM 08/17   COCORAHS

...Washington County...
Lakeland 2WNW                1.47 in   0700 AM 08/17   COCORAHS
Woodbury                     1.47 in   0600 AM 08/17   COCORAHS
St. Paul Park                1.39 in   0700 AM 08/17   COCORAHS
Woodbury                     1.39 in   0640 AM 08/17   COCORAHS
Stillwater 2 SW              1.37 in   0800 AM 08/17   COOP
Cottage Grove 1ESE           1.26 in   1049 AM 08/17   CWOP
Stillwater                   1.26 in   0630 AM 08/17   COCORAHS
Woodbury                     1.22 in   0700 AM 08/17   COCORAHS
Hugo 2WSW                    1.13 in   1052 AM 08/17   CWOP
Mahtomedi                    1.08 in   0800 AM 08/17   COCORAHS
Stillwater 1NE               1.00 in   0640 AM 08/17   COCORAHS

...Watonwan County...
Madelia                      1.86 in   1052 AM 08/17   CWOP
La Salle 5SE                 1.33 in   1030 AM 08/17   GOES
La Salle 2NW                 1.27 in   0700 AM 08/17   COCORAHS
St. James                    1.04 in   0700 AM 08/17   COCORAHS

...Wright County...
Cokato 4NE                   1.52 in   1045 AM 08/17   HADS
Clearwater                   1.50 in   1045 AM 08/17   HADS
French Lake                  1.43 in   1054 AM 08/17   CWOP
Clearwater 4SSE              1.31 in   0825 AM 08/17   COCORAHS
Maple Lake                   1.29 in   0700 AM 08/17   COCORAHS
Maple Lake 2SSW              1.27 in   1052 AM 08/17   CWOP
Delano                       1.17 in   1030 AM 08/17   HADS
Hanover                      1.15 in   0800 AM 08/17   COCORAHS
Rockford                     1.11 in   0700 AM 08/17   COOP
Rockford                     1.10 in   0700 AM 08/17   COCORAHS
Big Lake 2SSE                1.02 in   1057 AM 08/17   CWOP
Buffalo                      1.01 in   0725 AM 08/17   COCORAHS
St. Michael 1E               1.01 in   0800 AM 08/17   COCORAHS

...Yellow Medicine County...
Montevideo 4S                4.66 in   0700 AM 08/17   COCORAHS
Hanley Falls                 4.57 in   1045 AM 08/17   GOES
Clarkfield 4NE               4.45 in   0700 AM 08/17   COCORAHS
Hanley Falls                 4.27 in   1045 AM 08/17   GOES
Boyd 5SW                     2.80 in   0700 AM 08/17   COCORAHS
Canby                        2.41 in   0730 AM 08/17   COCORAHS
Canby                        2.37 in   0800 AM 08/17   COOP

...Wisconsin...

...Barron County...
Dallas 4E                    1.47 in   0700 AM 08/17   COCORAHS
Prairie Farm 3W              1.47 in   0700 AM 08/17   COCORAHS
Rice Lake                    1.44 in   0800 AM 08/17   COOP
Chetek AP                    1.37 in   0655 AM 08/17   AWOS
Chetek 2SE                   1.33 in   0700 AM 08/17   COCORAHS
Haugen 2SE                   1.20 in   0800 AM 08/17   COCORAHS
Cumberland 2WNW              1.16 in   0700 AM 08/17   COCORAHS
Rice Lake AP                 1.13 in   0655 AM 08/17   AWOS
Cumberland 2WNW              1.05 in   0630 AM 08/17   COCORAHS
Clayton 3ENE                 1.02 in   0700 AM 08/17   COCORAHS

...Chippewa County...
Colfax 7ESE                  2.14 in   1046 AM 08/17   CWOP
Eau Claire AP                1.44 in   0656 AM 08/17   ASOS
Jim Falls 3NW                1.22 in   0630 AM 08/17   COOP
Bloomer                      1.20 in   0800 AM 08/17   COOP

...Dunn County...
Menomonie                    2.27 in   0900 AM 08/17   COCORAHS
Elk Mound 4SE                2.02 in   0800 AM 08/17   COCORAHS
Menomonie AP                 1.84 in   0655 AM 08/17   AWOS
Elk Mound                    1.74 in   0700 AM 08/17   UCOOP
Cedar Falls (Hydro)          1.64 in   0700 AM 08/17   COOP
Wheeler                      1.52 in   0615 AM 08/17   COOP
Knapp 2E                     1.51 in   0700 AM 08/17   COCORAHS
Downsville 6E                1.31 in   0700 AM 08/17   COCORAHS
Boyceville 3NNE              1.15 in   0700 AM 08/17   COCORAHS

...Eau Claire County...
Eau Claire 1S                1.89 in   1055 AM 08/17   CWOP
Augusta 4NW                  1.88 in   0700 AM 08/17   COCORAHS
Altoona                      1.67 in   0600 AM 08/17   COCORAHS
Eau Claire                   1.47 in   1053 AM 08/17   CWOP
Eau Claire-Dells Dam         1.43 in   0600 AM 08/17   GOES
Altoona 1E                   1.36 in   1100 AM 08/17   CWOP
Eau Claire 3SSW              1.34 in   0630 AM 08/17   COCORAHS
Eau Claire 2SSW              1.33 in   1100 AM 08/17   CWOP
Augusta 1NW                  1.11 in   1005 AM 08/17   RAWS
Eau Claire 3SW               1.10 in   1200 AM 08/17   COOP

...Pepin County...
Stockholm 1S                 2.57 in   1015 AM 08/17   USARMY-COE
Durand                       1.32 in   0730 AM 08/17   COCORAHS
Durand                       1.06 in   1045 AM 08/17   USARMY-COE

...Pierce County...
Ellsworth 1S                 2.89 in   0900 AM 08/17   COCORAHS
Ellsworth 1E                 2.45 in   0700 AM 08/17   COOP
River Falls 1S               2.19 in   0700 AM 08/17   COCORAHS
Spring Valley 1WSW           2.18 in   0730 AM 08/17   COCORAHS
El Paso 7NW                  2.13 in   0726 AM 08/17   COCORAHS
River Falls 1SW              2.02 in   0735 AM 08/17   COCORAHS
El Paso 1NW                  1.84 in   0800 AM 08/17   COCORAHS
Prescott                     1.69 in   0700 AM 08/17   COCORAHS
River Falls                  1.53 in   0500 AM 08/17   COCORAHS
Ellsworth 6WNW               1.29 in   0600 AM 08/17   COCORAHS
Spring Valley 1SSW           1.28 in   1044 AM 08/17   CWOP
River Falls                  1.20 in   0605 AM 08/17   UCOOP
Ellsworth 3ESE               1.10 in   0829 AM 08/17   COCORAHS

...Polk County...
Balsam Lake 4SE              1.24 in   0700 AM 08/17   COCORAHS
Amery 2S                     1.21 in   0730 AM 08/17   COCORAHS

...Rusk County...
Tony AP                      1.19 in   0655 AM 08/17   AWOS
Sheldon                      1.10 in   0600 AM 08/17   UCOOP
Ladysmith 2SW                1.06 in   1005 AM 08/17   RAWS

...St. Croix County...
Baldwin                      1.75 in   0700 AM 08/17   COOP
River Falls 1NW              1.68 in   0700 AM 08/17   COCORAHS
Roberts                      1.41 in   0800 AM 08/17   COOP
Glenwood City 5WNW           1.26 in   1050 AM 08/17   CWOP
Spring Valley                1.02 in   1030 AM 08/17   USARMY-COE

Observations are collected from a variety of sources with varying
equipment and exposures. We thank all volunteer weather observers
for their dedication. Not all data listed are considered official.
Last modified: August 21, 2017
For more information contact: climate@umn.edu