Fishing Conditions: GREAT

Report Rating: GREAT
Crowd Rating: Somewhat Crowded
Somewhat Crowded

Fly Fishing Report Date:

Wednesday, Sep 18, 2019

Weather & Water Conditions

Weather Water
Temp: 60+ Temp: 56-59
Sky: Clear Flow: 250
Wind: None Clarity: Crystal Clear
Precip: None Runoff: No 

Colorado Stream Update: The Willy's is producing!

Current Conditions at Williams Fork:

The Willy's is fishing well as we towards Fall. There are several fish being taken on the surface with traditional patterns such as elk hairs and parachutes, still. Nymph-rigs are also moving fish especially in the morning, as temperatures are starting to dip lower over-night. Expect fish to start in slower water but quickly move into riffles and seems. Good fly choices include; princes, worms, girdles, 20-inchers, and larger caddis offerings are all good places to start. Two-bits, RS2's and JuJu's are finding fish as well. Small PTs and Hare's ears have also been doing well. Remember, depth is the name of the game when nymphing.

This is one of the best times of year to be on the water! The crowds on the local tail waters are beginning to die down as the weather gets cooler.  The fishing is great.  Clear skies and 60+ degree weather. The water temperature was between 56-59 degrees and Crystal Clear.

Angling University: Up your game.
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  • Rods/reels
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Angling University: Anyone can learn to fish.
The Flyfisher Guide Service: Get out and fish.

Likely Catch

Species: Brown
Weight: 3 lbs 0 oz
Length: 18 inches
Girth: 9 inches
Brown Trout Female Brown Trout Female
Brown Trout Male Brown Trout Male

Current Insect Hatches at Williams Fork

Insect Type: Midge

Insect: Black Midge

Color: Black

Size: 22

Time:

Black Midge Larva Illustration
Black Midge Emerger Illustration
Black Midge Adult Illustration

Insect Type: Mayfly

Insect: Blue Winged Olive

Color: Olive

Size: 20

Time:

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

Recommended Flies for Williams Fork

Fly: Prince Nymph
Color: Brown
Size: 18
Time: 
Prince Nymph Prince Nymph
Fly: Two Bit Hooker
Color: Olive
Size: 18
Time: 
Two Bit Hooker Two Bit Hooker
Fly: Rs2 Emerger
Color: Black
Size: 20
Time: 
Rs2 Emerger Rs2 Emerger

Colorado Hatch Conditions for Late September

Caddisflies
Insects: Green Sedge
Color: Olive to Gray Brown
Dates: Jul 15 – Sep 30
Emergence: Morning & Afternoon
Size: 12-14
Spinner Fall: NA
Green Sedge Larva illustration
Green Sedge Emerger illustration
Green Sedge Adult illustration
Illustrations © The Flyfisher Group 
Insects: Little Black Sedge
Color: Chocolate to Black
Dates: Jul 15 – Sep 30
Emergence: Sporadic
Size: 16-18
Spinner Fall: NA
Little Black Sedge Larva illustration
Little Black Sedge Emerger illustration
Little Black Sedge Adult illustration
Illustrations © The Flyfisher Group 
Insects: Micro Caddis
Color: Yellow, Orange or Brown
Dates: Jun 15 – Oct 15
Emergence: Sporadic
Size: 20-22
Spinner Fall: NA
Micro Caddis Larva illustration
Micro Caddis Emerger illustration
Micro Caddis Adult illustration
Illustrations © The Flyfisher Group 
Insects: October Caddis
Color: Orange Tan to Grayish Black
Dates: Sep 1 – Oct 30
Emergence: Shallows, Afternoon & Evening
Size: 8-10
Spinner Fall: NA
October Caddis Larva illustration
October Caddis Emerger illustration
October Caddis 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: Gray Drake
Color: Gray
Dates: Jun 1 – Nov 30
Emergence: Late Morning
Size: 14-16
Spinner Fall: Evening
Gray Drake Nymph illustration
Gray Drake Emerger illustration
Gray Drake Adult illustration
Illustrations © The Flyfisher Group 
Insects: Mahogany Dun
Color: Reddish Brown to Blackish Brown
Dates: Sep 1 – Oct 31
Emergence: Early Afternoon
Size: 16-18
Spinner Fall: Late Evening
Mahogany Dun Nymph illustration
Mahogany Dun Emerger illustration
Mahogany Dun Adult illustration
Illustrations © The Flyfisher Group 
Insects: Micro Blue Winged Olive (BWO)
Color: Pale Olive Green to Blue Gray
Dates: Jun 1 – Nov 30
Emergence: Clouds & warmest part of day
Size: 22-26
Spinner Fall: Evening
Micro Blue Winged Olive (BWO) Nymph illustration
Micro Blue Winged Olive (BWO) Emerger illustration
Micro Blue Winged Olive (BWO) Adult illustration
Illustrations © The Flyfisher Group 
Insects: Red Quill
Color: Reddish Brown
Dates: Jun 15 – Sep 30
Emergence: Mid Morning
Size: 14-16
Spinner Fall: Evening
Red Quill Nymph illustration
Red Quill Emerger illustration
Red 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: September Stone
Color: Reddish Brown with Orange belly
Dates: Aug 15 – Oct 31
Emergence: Early Afternoon to Evening
Size: 4-10
Spinner Fall: NA
September Stone Nymph illustration
September Stone 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 & Red Ant
Color: Red & Black
Dates: Jul 1 – Sep 30
Emergence: All Day
Size: 18-20
Spinner Fall: NA
Black & Red Ant 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: Cricket
Color: Brownish Olive to Black
Dates: Jun 1 – Nov 30
Emergence: Twilight & Dusk
Size: 8-16
Spinner Fall: NA
Cricket 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

Clear
Currently: Clear Sky
Temperature:  63 F
Temp Max:  70 F
Temp Min:  54 F
Humidity: 20%
Wind: 36 W mph
Pressure: 1024
Clear Sunday 6:00PM — 59 ℉
Expect clear sky with temperatures ranging between 59 and 60 ℉.
Wind: 23 W mph; Humidity: 21%; 
Clear Sunday 9:00PM — 40 ℉
Expect clear sky with temperatures ranging between 40 and 41 ℉.
Wind: 6 SW mph; Humidity: 39%; 
Clouds Monday 6:00AM — 32 ℉
Expect broken clouds with temperatures ranging between 32 and 32 ℉.
Wind: 2 ESE mph; Humidity: 54%; 
Clouds Monday 9:00AM — 46 ℉
Expect overcast clouds with temperatures ranging between 46 and 46 ℉.
Wind: 5 NE mph; Humidity: 33%; 
Clouds Monday 12:00PM — 63 ℉
Expect overcast clouds with temperatures ranging between 63 and 63 ℉.
Wind: 17 WSW mph; Humidity: 14%; 
Clouds Monday 3:00PM — 68 ℉
Expect broken clouds with temperatures ranging between 68 and 68 ℉.
Wind: 19 SW mph; Humidity: 12%; 
Clouds Monday 6:00PM — 63 ℉
Expect scattered clouds with temperatures ranging between 63 and 63 ℉.
Wind: 15 WSW mph; Humidity: 16%; 
Clear Monday 9:00PM — 44 ℉
Expect clear sky with temperatures ranging between 44 and 44 ℉.
Wind: 3 W mph; Humidity: 33%; 
Clear Tuesday 6:00AM — 34 ℉
Expect clear sky with temperatures ranging between 34 and 34 ℉.
Wind: 3 SSW mph; Humidity: 49%; 
Clear Tuesday 9:00AM — 49 ℉
Expect clear sky with temperatures ranging between 49 and 49 ℉.
Wind: 4 WSW mph; Humidity: 30%; 
Clear Tuesday 12:00PM — 63 ℉
Expect clear sky with temperatures ranging between 63 and 63 ℉.
Wind: 17 WSW mph; Humidity: 17%; 
Clear Tuesday 3:00PM — 69 ℉
Expect clear sky with temperatures ranging between 69 and 69 ℉.
Wind: 23 WNW mph; Humidity: 14%; 
Clear Tuesday 6:00PM — 63 ℉
Expect clear sky with temperatures ranging between 63 and 63 ℉.
Wind: 25 WNW mph; Humidity: 19%; 
Clear Tuesday 9:00PM — 44 ℉
Expect clear sky with temperatures ranging between 44 and 44 ℉.
Wind: 2 SW mph; Humidity: 40%;