Fishing Conditions: GOOD

Report Rating: GOOD
Crowd Rating: Somewhat Crowded
Somewhat Crowded

Fly Fishing Report Date:

Wednesday, Apr 19, 2017

Weather & Water Conditions

Weather Water
Temp: 52-55 Temp: 44-47
Sky: Clear Flow: 49
Wind: Gusting Clarity: Crystal Clear
Precip: None Runoff: No 

Colorado Stream Update: The dry fly fishing on the Big Thompson has been great!

Current Conditions at Big Thompson:

It seems that there is one insect or another hatching at any given time of the day here on The Big T right now! Midges are coming off in massive numbers in the morning while BWOs and Caddis are hatching through the mid-day to afternoon hours. With this in mind, it's ok to put the nymph box away for the time being. Fish are consistently rising and taking Parachute Adams, BWOs, and Peacock Caddis. The water is low and clear, as it typically is here, so 5x and 6x tippet is still the go-to line.

The Big Thompson is ice free and the fly fishing is great. Midges and mayflies are everywhere. The water is low and clear and the fish are hungry. Fly fishing trips have been great.  The fishing is good.  Clear skies and 52-55 degree weather. The water temperature was between 44-47 degrees and Crystal Clear.

Likely Catch

Species: Brown
Weight: 1 lbs 3 oz
Length: 14 inches
Girth: 5 inches
Brown Trout Female Brown Trout Female
Brown Trout Female Brown Trout Female

Current Insect Hatches at Big Thompson

Insect Type: Midge

Insect: Black Midge

Color: Black

Size: 24

Time:

Insect Type: Mayfly

Insect: Blue Winged Olive

Color: Brownish Olive

Size: 18

Time:

Insect Type: Caddisfly

Insect: Little Sister Sedge

Color: Light Olive Tan

Size: 18

Time:

Recommended Flies for Big Thompson

Fly: Peacock Caddis
Color: Light Olive Brown
Size: 18
Time: 
Peacock Caddis Peacock Caddis
Fly: Blue Winged Olive
Color: Brown Olive
Size: 18
Time: 
Blue Winged Olive Blue Winged Olive
Fly: Parachute Adams
Color: Gray
Size: 18
Time: 
Parachute Adams Parachute Adams

Colorado Hatch Conditions for Late April

Caddisflies

Insects: American Grannom
Color: Bright Green to Greenish Brown
Dates: Mar 1 – May 15
Emergence: Early Morning & Afternoon
Size: 10-14
Spinner Fall: NA
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
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
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
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
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
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
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
Illustrations © The Flyfisher Group 

Stoneflies

Insects: Micro Black
Color: Dark Brown to Black
Dates: Jan 1 – May 15
Emergence: 38-44° Water Temps Heat of Day
Size: 18-22
Spinner Fall: NA
Illustrations © The Flyfisher Group 
Insects: Skwala Stone
Color: Dark Brown to Yellow Olive
Dates: Mar 1 – May 15
Emergence: 38-47° Water Temps, Late afternoon and evening. Riffles and bankwater near foliage.
Size: 6-12
Spinner Fall:
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
Illustrations © The Flyfisher Group 


Weather for Big Thompson

Current: 53 °F Clear Wind: 0 MPH N
Current Condtions

Clear

Temperature: 53 °F
Humidity: 34%
Wind: 0 mph N
Pressure: 14.68 psi
Cloud Cover: 0%
Sunday's Forecast
weather forecast: Partly cloudy<br/> High: 43 °F  <br/>Low: 34 °F <br/> Wind: 11 mph WNW
Partly cloudy
High: 43 °F
Low: 34 °F
Wind: 11 mph WNW
Monday's Forecast
weather forecast: Patchy light snow<br/> High: 45 °F  <br/>Low: 32 °F <br/> Wind: 10 mph W
Patchy light snow
High: 45 °F
Low: 32 °F
Wind: 10 mph W
Tuesday's Forecast
weather forecast: Light sleet<br/> High: 45 °F  <br/>Low: 27 °F <br/> Wind: 6 mph W
Light sleet
High: 45 °F
Low: 27 °F
Wind: 6 mph W