Whacking Fatties Fly Fishing Reports and Forecasts

Idaho Fishing Report

Best Fishing Stream Name Today 5/20 5/21
1 Payette River, ID 5 5 5
2 Kootenai River, ID 5 5 5
3 Chase Lake, ID 5 5 5
4 McArthur Lake, ID 5 5 5
5 Priest Lake, ID 5 5 5
6 Jewel Lake, ID 5 5 5
7 Cocolalla Lake, ID 5 5 5
8 Dworshak Reservoir, ID 5 5 5
9 Shepherd Lake, ID 5 5 5
10 Elk Creek Reservoir, ID 5 5 5
11 Moose Creek Reservoir, ID 5 5 5
12 Kelso Lake, ID 5 5 5
13 Spirit Lake, ID 5 5 5
14 Dog Creek Reservoir, ID 5 5 5
15 Middle Fork Salmon River, ID 5 5 4
16 Salmon River: Upper, ID 5 4 5
17 Upper Priest Lake, ID 5 4 5
18 Lake Walcott, ID 5 4 5
19 South Fork Payette River, ID 5 4 5
20 Snake River: Middle, ID 4 5 5
21 Salmon River: Middle, ID 4 5 5
22 Lake Fork Creek, ID 4 5 5
23 Killarney Lake, ID 4 5 5
24 Granite Lake, ID 4 5 5
25 Freeman Lake, ID 4 5 5
26 Smith Lake, ID 4 5 5
27 Foster Reservoir, ID 4 5 5
28 Chatcolet Lake, ID 4 5 5
29 Crane Falls Lake, ID 4 5 5
30 Mann Lake, ID 4 5 5
31 Coeur d'Alene Lake, ID 4 5 5
32 Mann Creek Reservoir, ID 4 5 5
33 Rose Lake, ID 4 5 5
34 Lake Hayden, ID 4 5 5
35 Strongarm Reservoir Number One, ID 4 5 5
36 Twin Lakes Reservoir, ID 4 5 5
37 Winder Reservoir, ID 4 5 5
38 Snake River: Lower, ID 4 5 5
39 Glendale Reservoir, ID 4 4 5
40 Magic Reservoir, ID 4 4 5
41 Bear River, ID 4 4 5
42 Williams Lake, ID 4 4 5
43 Condie Reservoir, ID 4 4 5
44 Oneida Narrows Reservoir, ID 4 4 5
45 Lamont Reservoir, ID 4 4 5
46 Johnson Reservoir, ID 4 4 5
47 Deep Creek Reservoir, ID 4 4 5
48 Little Wood River, ID 4 4 4
49 Priest River, ID 4 4 4
50 Teton River, ID 4 4 4
51 Alexander Reservoir, ID 4 4 3
52 Salmon River: Lower, ID 4 4 2
53 Lake Pend Oreille, ID 4 3 5
54 Lake Cascade, ID 4 3 5
55 Little Redfish Lake, ID 4 3 4
56 Snake River: South Fork, ID 4 3 3
57 Little Payette Lake, ID 4 2 4
58 Twin Lakes, ID 3 5 5
59 Brush Lake, ID 3 5 5
60 Murtaugh Lake, ID 3 5 5
61 Ben Ross Reservoir, ID 3 5 5
62 Lake Waha, ID 3 5 4
63 Dawson Lake, ID 3 4 5
64 Bonner Lake, ID 3 4 5
65 Tolo Lake, ID 3 4 5
66 American Falls Reservoir, ID 3 4 5
67 Devil Creek Reservoir, ID 3 4 5
68 Daniels Reservoir, ID 3 4 5
69 Hawkins Reservoir, ID 3 4 5
70 Weston Creek Reservoir, ID 3 4 5
71 Spring Valley Reservoir, ID 3 4 4
72 Palisades Reservoir, ID 3 4 4
73 Mackay Reservoir, ID 3 4 4
74 Pend Oreille River, ID 3 4 4
75 Snake River: Main, ID 3 4 4
76 Kelly Creek, ID 3 4 3
77 Twentyfour Mile Reservoir, ID 3 4 3
78 North Fork Clearwater River, ID 3 4 3
79 Blackfoot Reservoir, ID 3 4 3
80 Little Salmon River, ID 3 4 2
81 Clearwater River, ID 3 4 1
82 Herrick Reservoir, ID 3 3 5
83 Anderson Ranch Reservoir, ID 3 3 5
84 Robinson Creek, ID 3 3 5
85 Big Lost River, ID 3 3 4
86 Warm River, ID 3 3 4
87 Warm Lake, ID 3 3 4
88 South Fork Boise River, ID 3 3 4
89 Rainey Creek, ID 3 3 3
90 Moyie River, ID 3 3 3
91 McCoy Creek, ID 3 3 3
92 Chesterfield Reservoir, ID 3 3 3
93 Horsethief Reservoir, ID 3 2 5
94 Stanley Lake, ID 3 2 4
95 Payette Lake, ID 3 2 3
96 Yellow Belly Lake, ID 3 2 2
97 Perkins Lake, ID 3 2 2
98 Mosquito Flat Reservoir, ID 3 2 2
99 Lochsa River, ID 3 1 1
100 Mormon Reservoir, ID 2 5 5
101 Arrowrock Reservoir, ID 2 5 5
102 Sublett Reservoir, ID 2 4 5
103 Upper Payette Lake, ID 2 4 4
104 Hazard Lake, ID 2 4 4
105 Lapwai Lake, ID 2 4 4
106 Owyhee River, ID 2 4 4
107 Selway River, ID 2 4 2
108 South Fork Teton Creek, ID 2 4 2
109 Thorn Creek Reservoir, ID 2 3 5
110 Little Camas Reservoir, ID 2 3 5
111 Malad River, ID 2 3 4
112 Boise River, ID 2 3 4
113 Billingsley Creek, ID 2 3 4
114 Henrys Lake, ID 2 3 4
115 Pine Creek, ID 2 3 3
116 Soldiers Meadow Reservoir, ID 2 3 3
117 Horseshoe Lake, ID 2 3 3
118 Spokane River, ID 2 3 2
119 Coeur d'Alene River, ID 2 2 4
120 North Fork Payette River, ID 2 2 4
121 Big Trinity Lake, ID 2 2 4
122 Saint Joe River, ID 2 2 3
123 Silver Creek, ID 2 2 3
124 Bear Creek, ID 2 2 3
125 Big Creek, ID 2 2 3
126 Goose Lake, ID 2 2 3
127 Redfish Lake, ID 2 2 3
128 Bayhorse Lake, ID 2 2 2
129 Bull Trout Lake, ID 2 2 2
130 Alturas Lake, ID 2 2 2
131 Blackfoot River, ID 2 2 2
132 Pettit Lake, ID 2 1 2
133 Lucky Peak Lake, ID 1 5 5
134 Island Park Reservoir, ID 1 3 3
135 Big Elk Creek, ID 1 3 2
136 Little North Fork Coeur d'Alene River, ID 1 1 2
137 Bruneau River, ID 0 0 0
138 Henrys Fork, ID 0 0 0
139 Jarbidge River, ID 0 0 0



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 Fatty Photo Feed