Whacking Fatties Fly Fishing Reports and Forecasts

South Dakota Fishing Report

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



Whacking Fatties Fishing Reports
Fly fishing report and map for South Dakota.

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

What is the goal?

To better understand fishing patterns, conditions to predict ferocity of fishable events and locations.

How do we do it?

Fishing Reports and Forecasts. Throughout every day, we create 7 day fishing forecasts for ~10,000 streams and lakes.

What is the Fatty Factor?

A 5 star rating calculated per hour over every day per stream. We create a detailed forecast for each stream whereby every hour gets a 5 star Fatty Factor rating.

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.

Can I determine land ownership from the stream map?

Yes. Landownership data is included in the map. In the map legend, the type of ownership is shown while you hover or tap on the map. You will see public or private land. For public, it will tell you the agency such as Forest Service or State Park.

Does Whacking Fatties have private landowner information such as parcel boundaries?

Currently, we have landowner information for Montana only. If you drill down into the map, you will see parcel boundaries. Simply click on the parcel to see who owns the land and other related information.

How do I determine distance from one access to another?

In the map, the measure tool can be used to trace along a stream to measure between fishing access points.

Can I determine stream elevation?

In the fishing map, you can turn on the elevation profile for a stream. You are able to visually see how much elevation is dropped along a stream.

What other mapping data is available and useful to anglers?

We provide three different background maps: dark, light, and satellite. The light is useful for planning routes to fishing access points. The satellite is very useful for all sorts of detailed planning.

What gauges are included in the Stream Flow graph?

For each stream, we have included all gauges for the stream overlaid into one graph. This is great for analyzing flow data of the stream as a whole to help predict best fishing areas.

What is the Fatty Store?

Check out the Fatty Store for great deals on the best fishing gear available in the market. We make available only the highest quality fly fishing gear at deep discounted prices such as fly fishing rods, fly boxes, waders or wading boots, fly fishing reels, flies, and tackle. From time to time, we have promotions on fly fishing vacations, film tours, and fly fishing videos. Look for deals on fly fishing schools.

What about fly fishing forums?

We have a great fishing forum where anglers can post their own reports and pictures. At each detailed stream page, you can upload fish pictures and your own fishing reports. We encourage you to rate the stream. We are working on the capability to upload your own fishing videos.

Where do I find a professional recommended fishing guide, lodge, or fishing charter?

Whacking Fatties Pro Contributors are professionally vetted and approved. Pro Contributors provide the highest quality guided fishing experiences. Look for recommended fishing charters, lodges, fly fishing and tackle shops posted on detailed stream report pages. Fishing near me? Investigate Pro Contributors listed on specific detailed streams near you.

What is Fatty Information?

What is the best fly line? How to tie a fly? Fly lines explained? Fly fishing beginner? Fatty Information is a new section whereby we present practical fly fisherman knowledge such as fly fishing knots, fly patterns, tapered leader formulas, tippet rings, strike indicators, drift boats, nymph fishing, euro nymphing, knots for fly fishing, best fishing sunglasses, etc. Information on our favorite flies such as mop files, clouser, nymph fly, wet flies, muddler minnow, isonychia fly, mole fly, cdc and elk fly, trico fly, caddis fly, and flies for largemouth bass. As well as recommendations for best small stream fly rods. The tug is the drug!

What are Fatty Alerts?

Never miss a great day of fishing! Fatty Alerts are automated email notifications whereby you are sent an email ONLY when your favorite streams have a great forecast. First, you sign up for a Whacking Fatties account; then, choose your favorite streams to get alerts. Fatty Alerts include our long range forecast. Never miss great fishing weather or fishing forecast with Fatty Alerts. They are free!

What are we working on next?

We will be expanding to fresh water lakes for bass, carp, and other great fishing. We will be able to assist with planning the best dates and times for your next fly fishing for stripers adventure. Forecasting for salt-water locations are on the radar. Please contact us with your feedback. Tight lines!

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.

Check out more:

The Fatty List: Top Daily Fishing Reports broken down by nationwide, northeast, south, midwest, and northwest fishing regions The Fatty Map: Today's Top Fishing Streams on a Map Top Professional Contributors Fishing Report Feed - find current fishing reports and updates Fatty Photo Feed