Whacking Fatties Fly Fishing Reports and Forecasts

Colorado Fishing Report

Best Fishing Stream Name Today 7/28 7/29
1 North Sterling Reservoir, CO 5 5 5
2 Brush Hollow Reservoir, CO 5 5 4
3 Eagle River, CO 5 5 4
4 Jackson Reservoir, CO 5 5 4
5 San Luis Lake, CO 5 5 3
6 Roaring Fork River, CO 5 5 3
7 Crystal River, CO 5 5 3
8 Mountain Home Reservoir, CO 5 5 3
9 Fryingpan River, CO 5 5 3
10 Colorado River: Lower, CO 5 5 3
11 Gore Creek, CO 5 5 3
12 Fraser River, CO 5 5 3
13 Joe Moore Reservoir, CO 5 5 3
14 Cimarron River, CO 5 5 3
15 Cebolla Creek, CO 5 5 3
16 Halligan Reservoir, CO 5 5 3
17 Paonia Reservoir, CO 5 5 3
18 Grass Valley Reservoir, CO 5 5 3
19 Williams Fork, CO 5 5 3
20 Miramonte Reservoir, CO 5 5 3
21 Prewitt Reservoir, CO 5 5 3
22 Flagler Reservoir, CO 5 5 3
23 Skagway Reservoir, CO 5 5 2
24 Deweese-Dye Reservoir, CO 5 5 2
25 Watson Lake, CO 5 5 2
26 Rio Grande Reservoir, CO 5 5 2
27 Troutvale Reservoir Number 1: Hinsdale, CO 5 5 2
28 Rito Hondo Reservoir, CO 5 5 2
29 Troutvale Reservoir Number 2, CO 5 5 2
30 Ramah Reservoir, CO 5 5 2
31 Road Canyon Reservoir Number 1, CO 5 5 2
32 Gunnison River: Upper, CO 5 5 2
33 Chatfield Lake, CO 5 5 2
34 Elevenmile Canyon Reservoir, CO 5 5 2
35 Spinney Mountain Reservoir, CO 5 5 2
36 Tarryall Reservoir, CO 5 5 2
37 Trinidad Lake, CO 5 5 2
38 Shaw Lake, CO 5 5 2
39 Big Meadows Reservoir, CO 5 5 2
40 Taylor River, CO 5 5 2
41 East River, CO 5 5 2
42 Big Blue Creek, CO 5 5 2
43 Ruedi Reservoir, CO 5 5 2
44 Barr Lake, CO 5 5 2
45 Muddy Creek, CO 5 5 2
46 Rifle Gap Reservoir, CO 5 5 2
47 Grand Lake, CO 5 5 2
48 Pinewood Lake, CO 5 5 2
49 Clear Lake, CO 5 5 2
50 Cowdrey Reservoir, CO 5 5 2
51 Alberta Park Reservoir, CO 5 5 2
52 Lost Lake Slough, CO 5 5 2
53 Dowdy Lake, CO 5 5 2
54 Arkansas River: Lower, CO 5 5 2
55 Dillon Reservoir, CO 5 5 2
56 Big Beaver Reservoir, CO 5 5 2
57 South Delaney Lake, CO 5 5 2
58 East Delaney Lake, CO 5 5 2
59 Horseshoe Lake Reservoir, CO 5 5 1
60 Martin Lake Reservoir, CO 5 5 1
61 Home Supply Reservoir, CO 5 5 1
62 Sylvan Lake, CO 5 5 1
63 Antero Reservoir, CO 5 5 1
64 Pearl Lake, CO 5 5 1
65 Cottonwood Lake, CO 5 5 1
66 Cherry Creek Lake, CO 5 5 1
67 Dumont Lake, CO 5 5 1
68 Green Mountain Reservoir, CO 5 5 1
69 Clear Creek Reservoir, CO 5 5 1
70 Sweitzer Lake, CO 5 4 4
71 Douglas Reservoir, CO 5 4 3
72 San Juan River, CO 5 4 3
73 Narraguinnep Reservoir, CO 5 4 3
74 Henson Creek, CO 5 4 2
75 Haviland Lake, CO 5 4 2
76 Willow Creek Reservoir, CO 5 4 2
77 Lake Granby, CO 5 4 2
78 Lon Hagler Reservoir, CO 5 4 2
79 Bear River, CO 5 4 2
80 Shadow Mountain Lake, CO 5 4 2
81 Mesa Lake, CO 5 4 2
82 Mariano Reservoir, CO 5 4 2
83 Echo Canyon Reservoir, CO 5 4 2
84 Island Lake, CO 5 4 2
85 Chambers Lake, CO 5 4 2
86 Boyd Lake, CO 5 4 2
87 Williams Creek Reservoir, CO 5 4 2
88 Elk River, CO 5 4 2
89 Big Creek Reservoir Number 1, CO 5 4 2
90 Steamboat Lake, CO 5 4 2
91 North Michigan Creek Reservoir, CO 5 4 1
92 Holbrook Reservoir, CO 5 4 1
93 Buckeye Reservoir, CO 5 4 1
94 Sweetwater Lake, CO 5 4 1
95 Turquoise Lake, CO 5 4 0
96 Piedra River, CO 5 3 3
97 Pastorius Reservoir, CO 5 3 3
98 Highline Lake, CO 5 3 2
99 Vallecito Reservoir, CO 5 3 2
100 Uncompahgre River, CO 5 3 2
101 Colorado River: Upper, CO 5 3 2
102 Lemon Reservoir, CO 5 3 2
103 Jefferson Lake, CO 5 3 2
104 Upper Dome Reservoir, CO 5 3 1
105 Hot Springs Reservoir, CO 5 3 1
106 Upper Stillwater Reservoir, CO 5 3 0
107 Sanchez Reservoir, CO 5 2 3
108 Lake John, CO 5 2 0
109 North Delaney Lake, CO 5 2 0
110 Deep Lake, CO 5 2 0
111 Yampa River, CO 4 5 4
112 White River, CO 4 5 4
113 Smith Reservoir, CO 4 5 3
114 Jackson Gulch Reservoir, CO 4 5 3
115 Summit Reservoir, CO 4 5 3
116 Totten Lake, CO 4 5 3
117 Puett Reservoir, CO 4 5 3
118 Julesburg Reservoir, CO 4 5 3
119 La Jara Reservoir, CO 4 5 2
120 Rio Blanco Lake, CO 4 5 2
121 Vega Reservoir, CO 4 5 1
122 Crawford Reservoir, CO 4 4 3
123 South Fork White River, CO 4 4 3
124 Gunnison River: Black Canyon, CO 4 4 3
125 McPhee Reservoir, CO 4 4 3
126 Groundhog Reservoir, CO 4 4 2
127 Bear Creek, CO 4 4 2
128 Deep Ward Lake, CO 4 4 2
129 South Platte River: Upper, CO 4 4 1
130 Rio Grande, CO 4 4 1
131 South Fork Rio Grande, CO 4 4 1
132 Conejos River, CO 4 4 1
133 North Platte River, CO 4 4 1
134 Clear Creek, CO 4 4 1
135 Rio San Antonio, CO 4 4 1
136 Boulder Creek, CO 4 4 0
137 Middle Fork South Platte River, CO 4 4 0
138 Trujillo Meadows Reservoir, CO 4 3 2
139 Lake Fork of the Gunnison, CO 4 3 2
140 Animas River, CO 4 3 2
141 Hermosa Creek, CO 4 3 2
142 Cache la Poudre River, CO 4 3 1
143 Saint Vrain Creek, CO 4 3 1
144 North Fork South Platte River, CO 4 3 1
145 Two Buttes Reservoir, CO 4 3 1
146 Tarryall Creek, CO 4 3 1
147 Blue River, CO 4 3 1
148 Michigan River, CO 4 3 0
149 Los Pinos River, CO 4 2 2
150 Florida River, CO 4 2 2
151 Grape Creek, CO 4 2 1
152 North Fork Big Thompson River, CO 4 2 1
153 Fall River, CO 4 2 1
154 Joe Wright Creek, CO 4 2 1
155 Arkansas River: Upper, CO 4 2 0
156 Cochetopa Creek, CO 4 2 0
157 Homestake Creek, CO 4 2 0
158 Roaring River, CO 4 1 1
159 John Martin Reservoir, CO 3 5 2
160 Pueblo Reservoir, CO 3 5 2
161 Adobe Creek Reservoir, CO 3 5 1
162 Elk Head Reservoir, CO 3 4 3
163 Horse Creek Reservoir, CO 3 3 3
164 Culebra Creek, CO 3 3 2
165 Gunnison River: Lower, CO 3 3 2
166 San Miguel River, CO 3 3 2
167 Thurston Reservoir, CO 3 3 1
168 Neenoshe Reservoir, CO 3 3 1
169 Lake Hasty: Bent, CO 3 3 1
170 Lake Hasty, CO 3 3 1
171 West Dolores River, CO 3 2 2
172 Clear Creek: Arkansas River, CO 3 2 0
173 Neeskah Reservoir: Kiowa, CO 2 3 1
174 Neeskah Reservoir, CO 2 3 1
175 South Platte River: Lower, CO 2 2 2
176 Dolores River, CO 2 2 2
177 Elk Creek, CO 2 2 1
178 Bonny Reservoir, CO 1 4 3
179 R R Rutherford Reservoir, CO 0 2 3



Whacking Fatties Fishing Reports
Fly fishing report and map for Colorado.

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