Whacking Fatties Fly Fishing Reports and Forecasts

Colorado Fishing Report

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

Check out more: