Whacking Fatties Fly Fishing Reports and Forecasts

South Dakota Fishing Report

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