Whacking Fatties Fly Fishing Reports and Forecasts

Idaho Fishing Report

Best Fishing Stream Name Today 8/20 8/21
1 Selway River, ID 5 5 5
2 Saint Joe River, ID 5 5 5
3 Salmon River: Upper, ID 5 5 5
4 Boise River, ID 4 5 5
5 Clearwater River, ID 4 5 5
6 Pend Oreille River, ID 4 5 5
7 Lochsa River, ID 4 5 5
8 Snake River: Main, ID 4 5 5
9 Salmon River: Middle, ID 4 5 5
10 Kootenai River, ID 4 4 5
11 South Fork Boise River, ID 4 4 5
12 South Fork Payette River, ID 4 4 5
13 Robinson Creek, ID 4 4 4
14 Warm River, ID 4 4 4
15 Big Lost River, ID 4 4 4
16 Little North Fork Coeur d'Alene River, ID 4 4 4
17 North Fork Payette River, ID 4 4 4
18 Henrys Lake, ID 4 4 3
19 Coeur d'Alene River, ID 4 3 4
20 Lake Fork Creek, ID 4 3 2
21 Teton River, ID 4 2 4
22 Payette River, ID 3 5 3
23 Priest Lake, ID 3 4 5
24 Lake Pend Oreille, ID 3 4 5
25 Dawson Lake, ID 3 4 5
26 Smith Lake, ID 3 4 5
27 Salmon River: Lower, ID 3 4 4
28 Bonner Lake, ID 3 4 4
29 Shepherd Lake, ID 3 4 4
30 Freeman Lake, ID 3 4 4
31 Jewel Lake, ID 3 4 4
32 Chase Lake, ID 3 4 4
33 Perkins Lake, ID 3 4 3
34 Mackay Reservoir, ID 3 4 3
35 South Fork Teton Creek, ID 3 4 3
36 Upper Priest Lake, ID 3 3 5
37 McArthur Lake, ID 3 3 5
38 Williams Lake, ID 3 3 4
39 Coeur d'Alene Lake, ID 3 3 4
40 Chatcolet Lake, ID 3 3 4
41 Spring Valley Reservoir, ID 3 3 4
42 Killarney Lake, ID 3 3 4
43 Rose Lake, ID 3 3 4
44 Lapwai Lake, ID 3 3 4
45 Moose Creek Reservoir, ID 3 3 4
46 Dworshak Reservoir, ID 3 3 4
47 Elk Creek Reservoir, ID 3 3 4
48 Little Salmon River, ID 3 3 4
49 Twin Lakes, ID 3 3 4
50 Cocolalla Lake, ID 3 3 4
51 Mann Lake, ID 3 3 4
52 Brush Lake, ID 3 3 4
53 Kelso Lake, ID 3 3 4
54 Granite Lake, ID 3 3 4
55 Lake Hayden, ID 3 3 4
56 Spirit Lake, ID 3 3 4
57 Lake Waha, ID 3 3 4
58 Soldiers Meadow Reservoir, ID 3 3 4
59 Tolo Lake, ID 3 3 3
60 Island Park Reservoir, ID 3 3 3
61 Payette Lake, ID 3 3 3
62 Upper Payette Lake, ID 3 3 3
63 Goose Lake, ID 3 3 3
64 Yellow Belly Lake, ID 3 3 3
65 Palisades Reservoir, ID 3 3 3
66 Magic Reservoir, ID 3 3 3
67 Pettit Lake, ID 3 3 3
68 Warm Lake, ID 3 3 3
69 Blackfoot Reservoir, ID 3 3 3
70 Ben Ross Reservoir, ID 3 3 3
71 Little Payette Lake, ID 3 3 3
72 Herrick Reservoir, ID 3 3 3
73 Mormon Reservoir, ID 3 3 3
74 Mann Creek Reservoir, ID 3 3 3
75 Anderson Ranch Reservoir, ID 3 3 3
76 Big Trinity Lake, ID 3 3 3
77 Bull Trout Lake, ID 3 3 3
78 Little Camas Reservoir, ID 3 3 3
79 Lake Cascade, ID 3 3 3
80 Horsethief Reservoir, ID 3 3 3
81 Arrowrock Reservoir, ID 3 3 3
82 Lucky Peak Lake, ID 3 3 3
83 Stanley Lake, ID 3 3 3
84 American Falls Reservoir, ID 3 3 3
85 Horseshoe Lake, ID 3 3 3
86 Foster Reservoir, ID 3 3 3
87 Chesterfield Reservoir, ID 3 3 3
88 Condie Reservoir, ID 3 3 3
89 Crane Falls Lake, ID 3 3 3
90 Glendale Reservoir, ID 3 3 3
91 Lamont Reservoir, ID 3 3 3
92 Johnson Reservoir, ID 3 3 3
93 Hawkins Reservoir, ID 3 3 3
94 Lake Walcott, ID 3 3 3
95 Murtaugh Lake, ID 3 3 3
96 Dog Creek Reservoir, ID 3 3 3
97 Thorn Creek Reservoir, ID 3 3 3
98 Alturas Lake, ID 2 4 3
99 Mosquito Flat Reservoir, ID 2 4 3
100 Twin Lakes Reservoir, ID 2 4 3
101 Hazard Lake, ID 2 3 3
102 Moyie River, ID 2 3 3
103 Redfish Lake, ID 2 3 3
104 Little Redfish Lake, ID 2 3 3
105 Strongarm Reservoir Number One, ID 2 3 3
106 Weston Creek Reservoir, ID 2 3 3
107 Daniels Reservoir, ID 2 3 3
108 Oneida Narrows Reservoir, ID 2 3 3
109 Twentyfour Mile Reservoir, ID 2 3 3
110 Deep Creek Reservoir, ID 2 3 3
111 Sublett Reservoir, ID 2 3 3
112 Winder Reservoir, ID 2 3 3
113 Devil Creek Reservoir, ID 2 3 3
114 North Fork Clearwater River, ID 2 2 3
115 Kelly Creek, ID 2 2 3
116 Spokane River, ID 2 2 3
117 Snake River: Lower, ID 2 2 2
118 Big Creek, ID 2 2 2
119 Bear River, ID 2 2 2
120 Middle Fork Salmon River, ID 2 2 2
121 Owyhee River, ID 2 2 2
122 Snake River: Middle, ID 2 2 2
123 Malad River, ID 2 2 2
124 Billingsley Creek, ID 2 2 2
125 Silver Creek, ID 2 2 2
126 Rainey Creek, ID 2 1 1
127 Pine Creek, ID 2 1 1
128 Bear Creek, ID 2 1 1
129 McCoy Creek, ID 2 1 1
130 Big Elk Creek, ID 2 1 1
131 Henrys Fork, ID 2 1 1
132 Bayhorse Lake, ID 1 4 2
133 Alexander Reservoir, ID 1 3 3
134 Priest River, ID 1 2 3
135 Blackfoot River, ID 1 2 2
136 Bruneau River, ID 1 1 2
137 Jarbidge River, ID 1 1 2
138 Snake River: South Fork, ID 1 1 1
139 Little Wood River, ID 1 1 1




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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