Whacking Fatties Fly Fishing Reports and Forecasts

Colorado Fishing Report

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



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