Whacking Fatties Fly Fishing Reports and Forecasts

California Fishing Report

Best Fishing Stream Name Today 7/24 7/25
1 Florence Lake, CA 5 5 4
2 Lower Blue Lake, CA 5 5 4
3 Silver Lake: Mono, CA 5 5 4
4 Red Lake Creek, CA 5 5 4
5 West Fork Carson River, CA 5 5 4
6 East Fork Carson River, CA 5 5 4
7 Boca Reservoir, CA 5 5 4
8 Stampede Reservoir, CA 5 5 4
9 Tioga Lake, CA 5 5 4
10 Lake Mary, CA 5 5 4
11 Prosser Creek Reservoir, CA 5 5 4
12 Lake Tahoe, CA 5 5 4
13 Lake George, CA 5 5 4
14 Silver Lake: Amador, CA 5 5 3
15 Wrights Lake, CA 5 5 3
16 Loon Lake, CA 5 5 3
17 Mokelumne River, CA 5 5 3
18 Lake Thomas A Edison, CA 5 4 4
19 Wishon Reservoir, CA 5 4 4
20 Coyote Lake, CA 5 4 4
21 Courtright Reservoir, CA 5 4 4
22 Independence Lake, CA 5 4 4
23 Indian Creek Reservoir, CA 5 4 4
24 Frenchman Lake, CA 5 4 4
25 Lake Davis, CA 5 4 4
26 Huntington Lake, CA 5 4 3
27 Ice House Reservoir, CA 5 4 3
28 Spicer Meadow Reservoir, CA 5 4 3
29 Pinecrest Lake, CA 5 4 3
30 Utica Reservoir, CA 5 4 3
31 Lake Alpine, CA 5 4 3
32 Lake Sterling, CA 5 4 3
33 Ashurst Lake, CA 5 4 3
34 Rucker Lake, CA 5 4 3
35 Gerle Creek Divide Reservoir, CA 5 4 3
36 Faucherie Lake, CA 5 4 3
37 Meadow Lake, CA 5 4 3
38 Fuller Lake, CA 5 4 3
39 Silver Lake, CA 5 4 3
40 Blue Lake, CA 5 4 3
41 Kelly Lake, CA 5 4 3
42 Lindsey Lakes, CA 5 4 3
43 Lake Spaulding, CA 5 4 3
44 Bowman Lake, CA 5 4 3
45 Jackson Meadows Reservoir, CA 5 4 3
46 Gold Lake, CA 5 4 3
47 French Meadows Reservoir, CA 5 3 3
48 Union Valley Reservoir, CA 5 3 3
49 Shaver Lake, CA 5 3 3
50 Eagle Lake, CA 5 3 3
51 Fall River, CA 4 5 5
52 Hat Creek, CA 4 5 5
53 Desert Creek, CA 4 5 4
54 West Walker River, CA 4 5 4
55 South Fork American River, CA 4 4 4
56 Middle Fork Feather River, CA 4 4 4
57 Middle Fork Stanislaus River, CA 4 4 4
58 McCloud River, CA 4 4 4
59 Pit River, CA 4 4 4
60 Tuolumne River, CA 4 4 4
61 Diaz Lake, CA 4 4 4
62 Cosumnes River, CA 4 4 4
63 Yuba River, CA 4 4 4
64 Feather River, CA 4 4 4
65 Stanislaus River, CA 4 4 4
66 South Fork San Joaquin River, CA 4 4 3
67 Hell Hole Reservoir, CA 4 4 3
68 Sacramento River: Lower, CA 4 4 2
69 South Fork Kings River, CA 4 3 4
70 Medicine Lake, CA 4 3 4
71 Merced River, CA 4 3 4
72 Beardsley Lake, CA 4 3 3
73 Big Reservoir, CA 4 3 3
74 Jenkinson Lake, CA 4 3 3
75 Mammoth Pool Reservoir, CA 4 3 3
76 Juniper Lake, CA 4 3 3
77 Lake Almanor, CA 4 3 3
78 New Bullards Bar Reservoir, CA 4 3 3
79 Lower Bucks Lake, CA 4 3 3
80 Butt Valley Reservoir, CA 4 3 3
81 Stumpy Meadows Reservoir, CA 4 3 3
82 Lewiston Lake, CA 4 3 3
83 Upper Letts Lake, CA 4 3 3
84 Philbrook Reservoir, CA 4 3 3
85 Lake Helen, CA 4 3 3
86 Sly Creek Reservoir, CA 4 3 3
87 Hume Lake, CA 4 3 3
88 Bucks Lake, CA 4 3 3
89 Little Grass Valley Reservoir, CA 4 3 3
90 Scotts Flat Reservoir, CA 4 3 3
91 Rollins Reservoir, CA 4 3 3
92 Little Truckee River, CA 4 3 3
93 Rush Creek: Mono Lake, CA 4 3 3
94 Paradise Lake, CA 4 3 3
95 Trinity Lake, CA 4 3 2
96 Big Valley Lake, CA 3 5 4
97 Sacramento River: Upper, CA 3 4 4
98 East Walker River, CA 3 4 3
99 Putah Creek, CA 3 3 3
100 Redinger Lake, CA 3 3 3
101 Bass Lake, CA 3 3 3
102 Horr Pond, CA 3 3 3
103 Reservoir C, CA 3 3 3
104 Lake Britton, CA 3 3 3
105 Pine Flat Lake, CA 3 3 3
106 North Yuba River, CA 3 3 3
107 Klamath River, CA 3 3 3
108 Kerckhoff Lake, CA 3 3 3
109 Hot Creek, CA 3 3 3
110 McGee Creek, CA 3 3 3
111 Lake Pillsbury, CA 3 3 3
112 Isabella Lake, CA 3 3 3
113 Shasta Lake, CA 3 3 3
114 Whiskeytown Lake, CA 3 3 3
115 Ruth Lake, CA 3 3 2
116 Rock Creek Lake, CA 3 3 2
117 Truckee River, CA 3 3 1
118 Iron Gate Reservoir, CA 3 3 1
119 Santa Margarita Lake, CA 3 3 1
120 Yellow Creek, CA 3 2 2
121 Rush Creek: Trinity River, CA 3 2 2
122 Indian Valley Reservoir, CA 3 2 2
123 Santiago Reservoir, CA 3 2 0
124 Silverwood Lake, CA 3 2 0
125 Lake Hemet, CA 3 2 0
126 Little Rock Reservoir, CA 3 1 0
127 Elizabeth Lake, CA 3 1 0
128 Pyramid Lake, CA 3 0 0
129 Owens River, CA 2 2 2
130 Bishop Creek, CA 2 2 2
131 Kings River, CA 2 2 2
132 Kern River, CA 2 2 2
133 Russian River, CA 2 2 2
134 Goose Lake, CA 1 4 3
135 Trinity River, CA 1 0 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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