Whacking Fatties Fly Fishing Reports and Forecasts

Idaho Fishing Report

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