Whacking Fatties Fly Fishing Reports and Forecasts

Colorado Fishing Report

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




What is Whacking Fatties? Fishing reports and forecasts for ~10,000 streams and lakes and rivers across North America and the United Kingdom.

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.

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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