Whacking Fatties Fly Fishing Reports and Forecasts

Colorado Fishing Report

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