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



Whacking Fatties Fishing Reports
Fly fishing report and map for Idaho.

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 Fishing News Feed - find current angler news Fatty Photo Feed