Fishing Conditions: GOOD

Report Rating: GOOD
Crowd Rating: Somewhat Crowded
Somewhat Crowded

Fly Fishing Report Date:

Sunday, May 19, 2019

Weather & Water Conditions

Weather Water
Temp: 48-51 Temp: 36-39
Sky: Overcast Flow: 2000
Wind: Gusting Clarity: Stained
Precip: None Runoff: Yes 
(All Day)

Colorado Stream Update: Run-off is here and summer is around the corner

Current Conditions at Gunnison:

Flows have been rising daily on the Gunny and this can be expected until run-off subsides. With that being said, water is high and off color. Fish are holding in soft seems and pockets. A nymph set-up is the way to go. San juan worms, Girdles and leeches are great choices with high water. Be sure to get those flies down into feeding lanes, one more split-shot can make a huge difference. Don't be afraid to swing a streamer! Some trout are still finishing their spawn so please be respectful

For best results try fishing heavily weighted stonefly nymphs. The weather has been warm and the water is beginning to rise. The water on Colorado’s favorite freestone streams has been running very high! Steamers are a fantastic way to move large trout during the higher water.   The fishing is good.  Overcast skies and 48-51 degree weather. The water temperature was between 36-39 degrees and Stained.

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: 3 lbs 0 oz
Length: 18 inches
Girth: 9 inches
Rainbow Trout Female Rainbow Trout Female
Rainbow Trout Male Rainbow Trout Male

Current Insect Hatches at Gunnison

Insect Type: Midge

Insect: Black Midge

Color: Black

Size: 20

Time: All Day

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

Insect Type: Caddisfly

Insect: Little Plain Brown Sedge

Color: Brown

Size: 16

Time: PM

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

Recommended Flies for Gunnison

Fly: Girdle Bug
Color: Brown
Size: 12
Time: All Day
Girdle Bug Girdle Bug
Fly: Zoo Cougar
Color: Olive
Size: 4
Time: All Day
Zoo Cougar Zoo Cougar
Fly: San Juan Worm
Color: Pink
Size: 16
Time: All Day
San Juan Worm San Juan Worm

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: Broken Clouds
Temperature:  40 F
Temp Max:  45 F
Temp Min:  36 F
Humidity: 48%
Wind: 13 WNW mph
Pressure: 1002
Snow Tuesday 9:00PM — 28 ℉
Expect light snow with temperatures ranging between 28 and 29 ℉.
Wind: 7 W mph; Humidity: 89%;  Snow: 0.125 for next 3 hours.
Snow Wednesday 6:00AM — 31 ℉
Expect light snow with temperatures ranging between 31 and 31 ℉.
Wind: 7 NE mph; Humidity: 82%;  Snow: 0.562 for next 3 hours.
Snow Wednesday 9:00AM — 34 ℉
Expect light snow with temperatures ranging between 34 and 34 ℉.
Wind: 5 NE mph; Humidity: 77%;  Snow: 1.438 for next 3 hours.
Snow Wednesday 12:00PM — 41 ℉
Expect light snow with temperatures ranging between 41 and 41 ℉.
Wind: 6 NNE mph; Humidity: 63%;  Snow: 1.312 for next 3 hours.
Rain Wednesday 3:00PM — 46 ℉
Expect light rain with temperatures ranging between 46 and 46 ℉.
Wind: 4 WSW mph; Humidity: 54%;  Rain: 0.75 for next 3 hours.
Snow Wednesday 6:00PM — 46 ℉
Expect light snow with temperatures ranging between 46 and 46 ℉.
Wind: 17 S mph; Humidity: 49%;  Snow: 0.375 for next 3 hours.
Clouds Wednesday 9:00PM — 36 ℉
Expect scattered clouds with temperatures ranging between 36 and 36 ℉.
Wind: 12 E mph; Humidity: 66%; 
Clouds Thursday 6:00AM — 29 ℉
Expect overcast clouds with temperatures ranging between 29 and 29 ℉.
Wind: 13 ENE mph; Humidity: 81%; 
Clear Thursday 9:00AM — 46 ℉
Expect clear sky with temperatures ranging between 46 and 46 ℉.
Wind: 42 SE mph; Humidity: 54%; 
Clear Thursday 12:00PM — 53 ℉
Expect clear sky with temperatures ranging between 53 and 53 ℉.
Wind: 57 SSE mph; Humidity: 39%; 
Clouds Thursday 3:00PM — 51 ℉
Expect broken clouds with temperatures ranging between 51 and 51 ℉.
Wind: 49 SSW mph; Humidity: 41%; 
Clouds Thursday 6:00PM — 47 ℉
Expect broken clouds with temperatures ranging between 47 and 47 ℉.
Wind: 38 SW mph; Humidity: 41%; 
Clouds Thursday 9:00PM — 35 ℉
Expect scattered clouds with temperatures ranging between 35 and 35 ℉.
Wind: 8 NW mph; Humidity: 68%; 
Clear Friday 6:00AM — 27 ℉
Expect clear sky with temperatures ranging between 27 and 27 ℉.
Wind: 4 NE mph; Humidity: 75%;