Whacking Fatties Fly Fishing Reports and Forecasts

South Dakota Fishing Report

Best Fishing Stream Name Today 5/20 5/21
1 Staum Dam, SD 4 5 5
2 Lake Thompson, SD 4 5 5
3 Spirit Lake, SD 4 5 5
4 Lake Henry, SD 4 5 5
5 Fordham Dam, SD 4 5 5
6 Twin Lakes, SD 4 5 4
7 Lake Dudley, SD 4 5 4
8 Mud Lake, SD 4 4 5
9 Cottonwood Lake: Spink, SD 4 4 5
10 Lake Redfield, SD 4 4 5
11 Lake Hurley, SD 4 3 5
12 Lake Pocasse, SD 4 2 3
13 Eureka Lake, SD 4 2 3
14 Curlew Lake, SD 4 1 3
15 Spring Creek, SD 4 1 2
16 Lake Yankton, SD 3 5 5
17 Twin Lakes: Sanborn, SD 3 5 5
18 Lake Byron, SD 3 5 5
19 Hanson Lake, SD 3 5 5
20 Stafford Dam, SD 3 5 5
21 Lake Francis Case, SD 3 5 4
22 Lake Menno, SD 3 5 4
23 Ravine Park Lake, SD 3 5 4
24 Rose Hill Lake, SD 3 5 3
25 Tuschen Slough, SD 3 5 3
26 Lake Mitchell, SD 3 5 3
27 Lake Faulkton, SD 3 5 3
28 Lake Cresbard, SD 3 4 5
29 Lake Herman, SD 3 4 5
30 Lake Parmley, SD 3 4 5
31 Long Lake, SD 3 4 4
32 Diamond Lake, SD 3 4 4
33 Island Lake, SD 3 4 4
34 Brant Lake, SD 3 4 4
35 Clear Lake: Minnehaha, SD 3 4 4
36 Anderson Slough, SD 3 4 4
37 Ketchum Lake, SD 3 4 4
38 Lake Louise, SD 3 4 3
39 Jones Lake, SD 3 4 3
40 Pactola Reservoir, SD 3 3 5
41 Sheridan Lake, SD 3 3 5
42 Lake Sharpe, SD 3 3 3
43 Brakke Dam, SD 3 3 3
44 Cottonwood Lake: Sully, SD 3 3 3
45 Fate Dam, SD 3 3 3
46 Elm Lake, SD 3 2 5
47 Morristown East Lake, SD 3 2 5
48 Willow Creek Lake, SD 3 1 5
49 Richmond Lake, SD 3 1 5
50 Lake Oahe, SD 3 1 5
51 Little Moreau Lake, SD 3 1 4
52 Molstad Lake, SD 3 1 4
53 Isabel Lake, SD 3 1 3
54 Lake Campbell, SD 3 1 3
55 Hayes Lake, SD 3 1 3
56 Waggoner Lake, SD 3 1 1
57 Trail City Railroad Lake, SD 3 0 2
58 Dry Lake Number Two, SD 2 5 5
59 Round Lake: Clark, SD 2 5 5
60 Pelican Lake, SD 2 5 5
61 Wilmarth Lake, SD 2 5 5
62 Baileys Lake, SD 2 5 5
63 Lake Whitewood, SD 2 5 5
64 Beaver Lake: Yankton, SD 2 5 5
65 Corsica Lake, SD 2 5 5
66 Lake Carthage, SD 2 5 5
67 Lake Tetonkaha, SD 2 5 5
68 Horseshoe Lake, SD 2 5 5
69 Lake Poinsett, SD 2 5 5
70 Goose Lake, SD 2 5 5
71 Lewis and Clark Lake, SD 2 5 4
72 McCook Lake, SD 2 5 4
73 Silver Lake, SD 2 5 4
74 Lake Kampeska, SD 2 5 4
75 Lake Norden, SD 2 5 4
76 Lake Albert, SD 2 5 4
77 Lake Dimock, SD 2 5 4
78 Lake Platte, SD 2 5 4
79 Grass Lake, SD 2 5 4
80 Lake Cochrane, SD 2 5 4
81 Lake Oliver, SD 2 5 4
82 Antelope Lake, SD 2 5 4
83 Bullhead Lake: Deuel, SD 2 5 4
84 Round Lake: Deuel, SD 2 5 4
85 Round Lake, SD 2 5 4
86 Ethan Lake, SD 2 5 3
87 Stockade Lake, SD 2 4 5
88 Lake Boehm, SD 2 4 5
89 Amsden Lake, SD 2 4 5
90 Reid Lake, SD 2 4 5
91 North Scatterwood Lake, SD 2 4 5
92 Pigors Lake, SD 2 4 5
93 Lake Hendricks, SD 2 4 5
94 Fish Lake, SD 2 4 5
95 Hickman Lake, SD 2 4 5
96 Lake Goldsmith, SD 2 4 5
97 Lake Sinai, SD 2 4 5
98 Oak Lake, SD 2 4 5
99 Buffalo Slough, SD 2 4 4
100 Clear Lake: Hamlin, SD 2 4 4
101 Punished Womans Lake, SD 2 4 4
102 Wall Lake, SD 2 4 4
103 Lost Lake, SD 2 4 4
104 Beaver Lake, SD 2 4 4
105 Lake Alvin, SD 2 4 4
106 East Vermillion Lake, SD 2 4 4
107 Lake Alice, SD 2 4 4
108 Clear Lake, SD 2 4 4
109 School Lake, SD 2 4 4
110 Lake Madison, SD 2 4 4
111 Lake Oakwood, SD 2 4 4
112 South Coteau Lake, SD 2 4 4
113 Waubay Lake, SD 2 4 4
114 Opitz Lake, SD 2 4 4
115 Minnewasta Lake, SD 2 4 4
116 Blue Dog Lake, SD 2 4 4
117 Summit Lake, SD 2 4 3
118 Shadehill Reservoir, SD 2 3 5
119 White Lake, SD 2 3 5
120 Lemmon Lake, SD 2 3 5
121 Clear Lake: Marshall, SD 2 3 5
122 Sixmile Lake, SD 2 3 5
123 Roy Lake, SD 2 3 5
124 Abraham Lake, SD 2 3 4
125 Ninemile Lake, SD 2 3 4
126 Bullhead Lake, SD 2 3 4
127 Fourmile Lake, SD 2 3 4
128 Cottonwood Lake, SD 2 3 4
129 Goose Lake: Day, SD 2 3 4
130 Piyas Lake, SD 2 3 4
131 Pickerel Lake, SD 2 3 4
132 Enemy Swim Lake, SD 2 3 4
133 Lake Oahe: Dewey, SD 2 3 3
134 Pierpont Lake, SD 2 2 5
135 Crow Creek, SD 2 2 4
136 Opal Lake, SD 2 1 4
137 Lantry Lake, SD 2 0 5
138 Dupree Lake, SD 2 0 5
139 Eagle Butte Lake, SD 2 0 1
140 Cold Brook Reservoir, SD 1 5 5
141 Swan Lake, SD 1 5 5
142 Center Lake, SD 1 5 5
143 Fairfax Lake, SD 1 5 5
144 Lake Geddes, SD 1 5 5
145 Angostura Reservoir, SD 1 5 4
146 Marindahl Lake, SD 1 5 4
147 Reliance Lake, SD 1 4 5
148 Lake Gardner, SD 1 4 5
149 Swan Lake: Clark, SD 1 4 4
150 Buffalo Lakes, SD 1 4 4
151 Lost Lake: Minnehaha, SD 1 4 3
152 Bear Butte Lake, SD 1 3 5
153 Belle Fourche Reservoir, SD 1 3 5
154 Byre Lake, SD 1 3 5
155 Bismark Lake, SD 1 3 5
156 South Red Iron Lake, SD 1 3 4
157 Dog Ear Lake, SD 1 3 3
158 Roosevelt Lake, SD 1 3 3
159 Owen Lake, SD 1 1 5
160 Boxelder Creek, SD 1 0 3
161 Rapid Creek, SD 1 0 2
162 Iron Creek Lake, SD 0 3 5
163 Deerfield Lake, SD 0 3 5
164 Whitewood Creek, SD 0 3 4
165 Castle Creek, SD 0 2 4
166 Sand Creek, SD 0 2 4
167 Spearfish Creek, SD 0 2 3
168 Grace Coolidge Creek, SD 0 2 3
169 French Creek, SD 0 2 3
170 Battle Creek, SD 0 2 3
171 Little Spearfish Creek, SD 0 1 3



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