Whacking Fatties Fly Fishing Reports and Forecasts

Idaho Fishing Report

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