Fishing Conditions: GREAT

Report Rating: GREAT
Crowd Rating: Overcrowded
Overcrowded

Fly Fishing Report Date:

Monday, May 11, 2020

Weather & Water Conditions

Weather Water
Temp: 60+ Temp: 48-51
Sky: Clear Flow: 126
Wind: None Clarity: Slightly Off
Precip: None Runoff: Yes 
(All Day)

Colorado Stream Update: Perfect spot right now.

Current Conditions at Williams Fork:

With rivers across the state starting to blow our tailwaters are a great options. The Willy's fork is flowing at 126cfs this make for easy wading. I would highly recommend checking out the fork before it gets too high. Nymphing will be the best option and focus your efforts on the deeper runs and pools. Fishing right at the confluence of the Colorado can always produce some nice fish. Check it out for yourself

Mayflies are beginning to get active and are quickly becoming the preferred food. Try fishing various sizes and colors of egg patterns to fool hungry fish. The weather has been warm and the water is beginning to rise.  The fishing is great.  Clear skies and 60+ degree weather. The water temperature was between 48-51 degrees and Slightly Off.

Angling University: Up your game.
The Flyfisher Guide Service
The Colorado Trout Fisher Guide Service
Colorado Fly Fishing Trips with
Colorado Trout Fisher
Denver and Boulder Fly Fishing Guides
Colorado Trout Fisher logo

BOOK A TRIP

Trip Includes:
  • Flies and fishing tackle
  • Rods/reels
  • Waders
  • Lunch
  • Transportation
$225 for 1 or 2 people
$295 for 3 people
Angling University: Anyone can learn to fish.
The Flyfisher Guide Service: Get out and fish.

Likely Catch

Species: Rainbow
Weight: 1 lbs 12 oz
Length: 16 inches
Girth: 5 inches
Rainbow Trout Female Rainbow Trout Female
Rainbow Trout Male Rainbow Trout Male

Current Insect Hatches at Williams Fork

Insect Type: Mayfly

Insect: Blue Winged Olive

Color:

Size:

Time:

Blue Winged Olive Emerger Illustration
Blue Winged Olive Nymph Illustration
Blue Winged Olive Adult Illustration

Insect Type: Caddisfly

Insect: Little Plain Brown Sedge

Color:

Size:

Time:

Little Plain Brown Sedge Larva Illustration
Little Plain Brown Sedge Emerger Illustration
Little Plain Brown Sedge Adult Illustration

Recommended Flies for Williams Fork

Fly: Egg
Color: 
Size: 
Time: 
Egg Egg
Fly: 20, Incher
Color: 
Size: 
Time: 
20, Incher 20, Incher
Fly: Caddis Pupa
Color: 
Size: 
Time: 
Caddis Pupa Caddis Pupa

Colorado Hatch Conditions for Late May

Caddisflies
Insects: Little Sister Sedge
Color: Green to Greenish Brown
Dates: May 15 – Aug 30
Emergence: Afternoon & Evening
Size: 14-16
Spinner Fall: NA
Little Sister Sedge Larva illustration
Little Sister Sedge Emerger illustration
Little Sister Sedge Adult illustration
Illustrations © The Flyfisher Group 
Insects: Little Tan Short Horn Sedge
Color: Dark Brown to Yellow
Dates: Mar 1 – Aug 30
Emergence: Sporadic
Size: 14-16
Spinner Fall: NA
Little Tan Short Horn Sedge Larva illustration
Little Tan Short Horn Sedge Emerger illustration
Little Tan Short Horn Sedge Adult illustration
Illustrations © The Flyfisher Group 
Insects: Spotted Sedge
Color: Brownish Yellow
Dates: May 15 – Sep 30
Emergence: Sporadic
Size: 10-12
Spinner Fall: NA
Spotted Sedge Larva illustration
Spotted Sedge Emerger illustration
Spotted Sedge Adult illustration
Illustrations © The Flyfisher Group 

Mayflies
Insects: Blue Winged Olive
Color: Light Olive Brown to Brown Olive
Dates: Mar 1 – Nov 15
Emergence: Clouds & warmest part of day
Size: 16-18
Spinner Fall: Evening
Blue Winged Olive Nymph illustration
Blue Winged Olive Emerger illustration
Blue Winged Olive Adult illustration
Illustrations © The Flyfisher Group 
Insects: Western Black Quill
Color: Purplish Black to Grayish Brown
Dates: Apr 1 – Jun 30
Emergence: Mid Morning
Size: 14-12
Spinner Fall: Evening
Western Black Quill Nymph illustration
Western Black Quill Emerger illustration
Western Black Quill Adult illustration
Illustrations © The Flyfisher Group 

Midges
Insects: Black Midge
Color: Blackish to Black
Dates: Apr 1 – Nov 15
Emergence: All Day
Size: 18-20
Spinner Fall: 2-3 Hours
Black Midge Larva illustration
Black Midge Emerger illustration
Black Midge Adult illustration
Illustrations © The Flyfisher Group 
Insects: Chocolate Brown Midge
Color: Brown to Chocolate
Dates: Feb 15 – Dec 15
Emergence: All Day
Size: 20-22
Spinner Fall: 2-3 Hours
Chocolate Brown Midge Larva illustration
Chocolate Brown Midge Emerger illustration
Chocolate Brown Midge Adult illustration
Illustrations © The Flyfisher Group 
Insects: Micro Black Midge
Color: Blackish to Black
Dates: Mar 1 – Nov 15
Emergence: Morning
Size: 22-26
Spinner Fall: 2-3 Hours
Micro Black Midge Larva illustration
Micro Black Midge Emerger illustration
Micro Black Midge Adult illustration
Illustrations © The Flyfisher Group 
Insects: Snow Midge
Color: Gray to Charcoal
Dates: Jan 1 – Dec 31
Emergence: Warmest part of day
Size: 24-28
Spinner Fall: 2-3 Hours
Snow Midge Larva illustration
Snow Midge Emerger illustration
Snow Midge Adult illustration
Illustrations © The Flyfisher Group 

Stoneflies
Insects: Salmon Fly
Color: Black to Reddish Brown
Dates: May 15 – Jul 15
Emergence: 50-60° Water Late Morning on
Size: 4-8
Spinner Fall: NA
Salmon Fly Nymph illustration
Salmon Fly Adult illustration
Illustrations © The Flyfisher Group 
Insects: Small Western
Color: Brownish
Dates: May 15 – Jul 15
Emergence: 46-56° Water Temps
Size: 14-18
Spinner Fall: NA
Small Western Nymph illustration
Small Western Adult illustration
Illustrations © The Flyfisher Group 
Insects: Winter Black
Color: Black Brown to Reddish Olive, Mottled Brown
Dates: Apr 1 – Aug 15
Emergence: Cold Mountain Streams and Small Ponds
Size: 18-22
Spinner Fall: NA
Winter Black Nymph illustration
Winter Black Adult illustration
Illustrations © The Flyfisher Group 

Terrestrials
Insects: Beetle
Color: Brownish to Black
Dates: May 1 – Nov 30
Emergence: All Day
Size: 10-18
Spinner Fall: NA
Beetle illustration
Illustrations © The Flyfisher Group 
Insects: Black Ant
Color: Black
Dates: May 1 – Nov 15
Emergence: All Day
Size: 20-24
Spinner Fall: NA
Black Ant illustration
Illustrations © The Flyfisher Group 
Insects: Grasshopper
Color: Green to Brownish Tan
Dates: May 15 – Nov 15
Emergence: All Day
Size: 2-14
Spinner Fall: NA
Grasshopper illustration
Grasshopper illustration
Illustrations © The Flyfisher Group 
Insects: Red Ant
Color: Red to Orangish
Dates: May 1 – Oct 15
Emergence: All Day
Size: 18-22
Spinner Fall: NA
Red Ant illustration
Illustrations © The Flyfisher Group 


Current Conditions

Clouds
Currently: Overcast Clouds
Temperature:  15 F
Temp Max:  23 F
Temp Min:  7 F
Humidity: 62%
Wind: 47 W mph
Pressure: 1015
Snow Monday 5:00PM — 11 ℉
Expect light snow with temperatures ranging between 11 and 11 ℉.
Wind: 33 WNW mph; Humidity: 79%;  Snow: 0.38 for next 3 hours.
Clouds Monday 8:00PM — 4 ℉
Expect broken clouds with temperatures ranging between 4 and 4 ℉.
Wind: 12 SW mph; Humidity: 96%; 
Snow Monday 11:00PM — 5 ℉
Expect light snow with temperatures ranging between 4 and 5 ℉.
Wind: 10 SW mph; Humidity: 96%;  Snow: 0.44 for next 3 hours.
Snow Tuesday 2:00AM — 6 ℉
Expect light snow with temperatures ranging between 6 and 6 ℉.
Wind: 9 W mph; Humidity: 96%;  Snow: 0.81 for next 3 hours.
Snow Tuesday 5:00AM — 2 ℉
Expect light snow with temperatures ranging between 2 and 2 ℉.
Wind: 11 WSW mph; Humidity: 98%;  Snow: 0.69 for next 3 hours.
Snow Tuesday 8:00AM — 3 ℉
Expect light snow with temperatures ranging between 3 and 3 ℉.
Wind: 12 W mph; Humidity: 94%;  Snow: 0.38 for next 3 hours.
Snow Tuesday 11:00AM — 8 ℉
Expect light snow with temperatures ranging between 8 and 8 ℉.
Wind: 17 NW mph; Humidity: 75%;  Snow: 0.38 for next 3 hours.
Snow Tuesday 2:00PM — 12 ℉
Expect light snow with temperatures ranging between 12 and 12 ℉.
Wind: 18 WNW mph; Humidity: 73%;  Snow: 0.38 for next 3 hours.
Snow Tuesday 5:00PM — 10 ℉
Expect light snow with temperatures ranging between 10 and 10 ℉.
Wind: 13 WNW mph; Humidity: 74%;  Snow: 0.25 for next 3 hours.
Clouds Tuesday 8:00PM — -0 ℉
Expect broken clouds with temperatures ranging between -0 and -0 ℉.
Wind: 5 SSW mph; Humidity: 95%; 
Clouds Tuesday 11:00PM — -3 ℉
Expect broken clouds with temperatures ranging between -3 and -3 ℉.
Wind: 6 SSW mph; Humidity: 98%; 
Clouds Wednesday 2:00AM — -7 ℉
Expect overcast clouds with temperatures ranging between -7 and -7 ℉.
Wind: 6 S mph; Humidity: 94%; 
Clouds Wednesday 5:00AM — -9 ℉
Expect broken clouds with temperatures ranging between -9 and -9 ℉.
Wind: 4 S mph; Humidity: 91%; 
Clear Wednesday 8:00AM — -1 ℉
Expect clear sky with temperatures ranging between -1 and -1 ℉.
Wind: 0 NW mph; Humidity: 82%; 
Clear Wednesday 11:00AM — 14 ℉
Expect clear sky with temperatures ranging between 14 and 14 ℉.
Wind: 10 NW mph; Humidity: 68%; 
Clouds Wednesday 2:00PM — 19 ℉
Expect few clouds with temperatures ranging between 19 and 19 ℉.
Wind: 11 WNW mph; Humidity: 73%; 
Clouds Wednesday 5:00PM — 15 ℉
Expect scattered clouds with temperatures ranging between 15 and 15 ℉.
Wind: 4 W mph; Humidity: 88%; 
Clouds Wednesday 8:00PM — 10 ℉
Expect overcast clouds with temperatures ranging between 10 and 10 ℉.
Wind: 5 SW mph; Humidity: 91%; 
Snow Wednesday 11:00PM — 9 ℉
Expect light snow with temperatures ranging between 9 and 9 ℉.
Wind: 5 SSW mph; Humidity: 96%;  Snow: 0.31 for next 3 hours.
Snow Thursday 2:00AM — 8 ℉
Expect light snow with temperatures ranging between 8 and 8 ℉.
Wind: 8 SW mph; Humidity: 96%;  Snow: 0.44 for next 3 hours.