Whacking Fatties Fly Fishing Reports and Forecasts

South Dakota Fishing Report

Best Fishing Stream Name Today 7/21 7/22
1 Wilmarth Lake, SD 5 5 4
2 Stockade Lake, SD 5 5 3
3 Bismark Lake, SD 5 5 3
4 Center Lake, SD 5 5 3
5 Lake Oahe: Dewey, SD 5 5 3
6 Lake Platte, SD 5 5 3
7 Beaver Lake: Yankton, SD 5 5 3
8 Molstad Lake, SD 5 5 3
9 Lake Menno, SD 5 5 3
10 Marindahl Lake, SD 5 5 3
11 Silver Lake, SD 5 5 3
12 Lake Dimock, SD 5 5 3
13 Lake Yankton, SD 5 5 3
14 Corsica Lake, SD 5 5 3
15 Lake Hurley, SD 5 5 3
16 Lake Campbell, SD 5 5 3
17 Lake Geddes, SD 5 5 3
18 Ethan Lake, SD 5 5 3
19 Lake Mitchell, SD 5 5 3
20 Bear Butte Lake, SD 5 5 3
21 Pactola Reservoir, SD 5 5 3
22 Lake Louise, SD 5 5 3
23 Staum Dam, SD 5 5 3
24 Dupree Lake, SD 5 5 3
25 East Vermillion Lake, SD 5 5 3
26 Angostura Reservoir, SD 5 5 3
27 Swan Lake, SD 5 5 3
28 Clear Lake: Hamlin, SD 5 5 3
29 Lost Lake: Minnehaha, SD 5 5 3
30 Cottonwood Lake: Spink, SD 5 5 3
31 Waggoner Lake, SD 5 5 3
32 Dry Lake Number Two, SD 5 5 3
33 Little Moreau Lake, SD 5 5 3
34 Wall Lake, SD 5 5 3
35 Lake Francis Case, SD 5 5 3
36 Pelican Lake, SD 5 5 3
37 Lewis and Clark Lake, SD 5 5 3
38 Eagle Butte Lake, SD 5 5 3
39 Curlew Lake, SD 5 5 3
40 Spirit Lake, SD 5 5 3
41 Lantry Lake, SD 5 5 3
42 Lost Lake, SD 5 5 3
43 Beaver Lake, SD 5 5 3
44 Cold Brook Reservoir, SD 5 5 3
45 Lake Alvin, SD 5 5 3
46 Lake Oahe, SD 5 5 3
47 Sheridan Lake, SD 5 5 3
48 Goose Lake, SD 5 5 3
49 Fairfax Lake, SD 5 5 3
50 Brant Lake, SD 5 5 3
51 Roosevelt Lake, SD 5 5 3
52 Tuschen Slough, SD 5 5 3
53 Clear Lake: Minnehaha, SD 5 5 3
54 Jones Lake, SD 5 5 3
55 Dog Ear Lake, SD 5 5 3
56 Bullhead Lake: Deuel, SD 5 5 3
57 Diamond Lake, SD 5 5 3
58 South Coteau Lake, SD 5 5 3
59 Island Lake, SD 5 5 3
60 Round Lake: Deuel, SD 5 5 3
61 School Lake, SD 5 5 3
62 Mud Lake, SD 5 5 3
63 Twin Lakes, SD 5 5 3
64 Deerfield Lake, SD 5 4 3
65 Shadehill Reservoir, SD 5 4 3
66 Lake Pocasse, SD 5 4 3
67 Eureka Lake, SD 5 4 3
68 Lemmon Lake, SD 5 4 3
69 Lake Faulkton, SD 5 4 3
70 Morristown East Lake, SD 5 4 3
71 Hanson Lake, SD 5 4 3
72 Twin Lakes: Sanborn, SD 5 4 3
73 Iron Creek Lake, SD 5 4 3
74 Belle Fourche Reservoir, SD 5 4 3
75 Swan Lake: Clark, SD 5 4 3
76 Clear Lake: Marshall, SD 5 4 3
77 Waubay Lake, SD 5 4 3
78 Lake Tetonkaha, SD 5 4 3
79 Horseshoe Lake, SD 5 4 3
80 Grass Lake, SD 5 4 3
81 Willow Creek Lake, SD 5 4 3
82 Elm Lake, SD 5 4 3
83 Blue Dog Lake, SD 5 4 3
84 Sixmile Lake, SD 5 4 3
85 Lake Norden, SD 5 4 3
86 Stafford Dam, SD 5 4 3
87 Buffalo Lakes, SD 5 4 3
88 Opal Lake, SD 5 4 3
89 Piyas Lake, SD 5 4 3
90 Lake Redfield, SD 5 4 3
91 Ninemile Lake, SD 5 4 3
92 South Red Iron Lake, SD 5 4 3
93 Opitz Lake, SD 5 4 3
94 Minnewasta Lake, SD 5 4 3
95 Richmond Lake, SD 5 4 3
96 Lake Henry, SD 5 4 3
97 White Lake, SD 5 4 3
98 Bullhead Lake, SD 5 4 3
99 Fourmile Lake, SD 5 4 3
100 Cottonwood Lake, SD 5 4 3
101 Goose Lake: Day, SD 5 4 3
102 Roy Lake, SD 5 4 3
103 Pickerel Lake, SD 5 4 3
104 Round Lake: Clark, SD 5 4 3
105 Enemy Swim Lake, SD 5 4 3
106 Antelope Lake, SD 5 4 3
107 Fordham Dam, SD 5 4 3
108 Lake Parmley, SD 5 4 3
109 Lake Poinsett, SD 5 4 3
110 Lake Cresbard, SD 5 4 3
111 Lake Kampeska, SD 5 4 3
112 Reid Lake, SD 5 4 3
113 North Scatterwood Lake, SD 5 4 3
114 Baileys Lake, SD 5 4 3
115 Hickman Lake, SD 5 4 3
116 Lake Oakwood, SD 5 4 3
117 Lake Albert, SD 5 4 3
118 Lake Goldsmith, SD 5 4 3
119 Pierpont Lake, SD 5 4 3
120 Amsden Lake, SD 5 4 3
121 Lake Sinai, SD 5 4 3
122 Pigors Lake, SD 5 4 3
123 Buffalo Slough, SD 5 4 3
124 Lake Thompson, SD 5 4 3
125 Lake Dudley, SD 5 4 3
126 Lake Byron, SD 5 4 3
127 Lake Carthage, SD 5 4 3
128 Ravine Park Lake, SD 5 4 3
129 Lake Whitewood, SD 5 4 3
130 Abraham Lake, SD 5 4 3
131 Summit Lake, SD 5 4 3
132 Punished Womans Lake, SD 5 4 3
133 Lake Hendricks, SD 5 4 3
134 Long Lake, SD 5 4 3
135 Lake Cochrane, SD 5 4 3
136 Fish Lake, SD 5 4 3
137 Lake Alice, SD 5 4 3
138 Anderson Slough, SD 5 4 3
139 Lake Oliver, SD 5 4 3
140 Ketchum Lake, SD 5 4 3
141 Clear Lake, SD 5 4 3
142 Lake Madison, SD 5 4 3
143 Round Lake, SD 5 4 3
144 Lake Herman, SD 5 4 3
145 Oak Lake, SD 5 4 3
146 Lake Gardner, SD 5 4 2
147 Owen Lake, SD 5 4 2
148 Isabel Lake, SD 5 4 2
149 Trail City Railroad Lake, SD 5 4 2
150 Cottonwood Lake: Sully, SD 4 5 3
151 McCook Lake, SD 4 5 3
152 Lake Boehm, SD 4 5 3
153 Lake Sharpe, SD 4 5 3
154 Reliance Lake, SD 4 5 3
155 Hayes Lake, SD 4 5 3
156 Byre Lake, SD 4 5 3
157 Fate Dam, SD 4 5 3
158 Brakke Dam, SD 4 5 3
159 Rose Hill Lake, SD 4 5 3
160 Castle Creek, SD 4 4 2
161 Sand Creek, SD 4 4 2
162 Rapid Creek, SD 4 4 2
163 French Creek, SD 4 4 2
164 Grace Coolidge Creek, SD 4 4 2
165 Battle Creek, SD 4 3 2
166 Boxelder Creek, SD 4 3 2
167 Spring Creek, SD 4 3 2
168 Crow Creek, SD 3 4 2
169 Whitewood Creek, SD 3 4 2
170 Spearfish Creek, SD 3 3 2
171 Little Spearfish Creek, SD 3 2 2




What is Whacking Fatties? Fishing reports and forecasts for ~10,000 streams and lakes and rivers across North America and the United Kingdom.

How is the Fatty Factor calculated?

The Fatty Factor is calculated using a fishing success estimation model containing proprietary big data analytics. We consume data from near and real-time sources, satellites, and sensors; compile/compare, against historic datasets, to create the Fatty Factor. Location, season, and analytics improve the rating over time.

How is the Fatty Factor rated?

5 stars is the best while 0 stars is “Not Fatty”.

How to use Whacking Fatties Fishing Reports and Forecasts?

Consult the detailed stream information section of the fishing reports and forecasts for the latest weather temperatures, wind speeds, cloud cover, gauge flows, and insect hatch patterns.

What do trout eat?

Check out the hatch recommendations for each stream in the detailed stream area. Investigate the hatch recommendations if you are interested in what do trout eat.

What kind of fish can I catch?

You tell us? Rainbow trout, brook trout, lake trout, bass, carp, etc. Currently, fresh water species. Salt water fishing? Fly fishing for carp is awesome. Tell us what you are after? Steelhead, grayling, tarpon, bass, bonefish, taimen, permit, salmon fishing?

How do I use the fishing maps?

We have a vast amount of geographic data for each stream. Click on the points to get more information. Green points represent fishing access such as put-ins and take-outs. Purple points represent bridges or stream crossings whereby often Google StreetView is available. Red points represent USGS Stream Gauges. Where available, we have graphs for Predictive Hydrograph 7 days, Water Temperature, Observed Height (ft.) 7 days, Observed Discharge (cfs) 7 days, and Duration Hydrograph. The Duration Hydrograph is a graphical presentation of recent daily streamflow, plotted over the long-term statistics of streamflow for each day of the year.

With the goal of better understanding fly-fishing patterns and predicting location and ferocity of fishable events, Whacking Fatties presents the Fatty Factor: a fly-fishing success estimation model using proprietary big data analytics.

Whacking Fatties promotes responsible fishing via catch and release practice and water resources conservation.

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