Whacking Fatties Fly Fishing Reports and Forecasts

Idaho Fishing Report

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




What is Whacking Fatties? Fly 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 fly-fishing patterns, conditions to predict ferocity of fishable events and locations.

How do we do it?

Fly 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 fly-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 starts is the best while 0 starts is “Not Fatty”.

How to use Whacking Fatties Fishing Reports and Forecasts?

Consult the detailed stream information section of the fly-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 fly 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 fly 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 fly 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.

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