Fishing Conditions: GOOD

Report Rating: GOOD
Crowd Rating: Somewhat Crowded
Somewhat Crowded

Fly Fishing Report Date:

Thursday, Mar 23, 2017

Weather & Water Conditions

Weather Water
Temp: 60+ Temp: 40-43
Sky: Clear Flow: 39
Wind: None Clarity: Crystal Clear
Precip: None Runoff: No 

Colorado Stream Update: The water is low and clear but now is a great time to go out and fish with a dry-dropper on the St. Vrain!

Current Conditions at Saint Vrain:

The baetis life cycle is in full swing on the St. Vrain through Lyons right now. Copper Johns and Prince Nymphs are working great sub-surface imitating the baetis nymphs while a traditional adult Blue Wing Olive on the surface is inducing a lot of takes as well. As these trout start to turn on their metabolisms from their winter hibernation, early spring on the St Vrain is a great place to get your line wet and catch a few while you're at it.

Our local streams close to Denver and Boulder are producing great fly fishing days. The flow is consistent and holding. Probably the best bet for good fishing close to Denver.  The fishing is good.  Clear skies and 60+ degree weather. The water temperature was between 40-43 degrees and Crystal Clear.

Likely Catch

Species: Rainbow
Weight: 1 lbs 2 oz
Length: 14 inches
Girth: 5 inches
Rainbow Trout Female Rainbow Trout Female
Rainbow Trout Female Rainbow Trout Female

Current Insect Hatches at Saint Vrain

Insect Type: Mayfly

Insect: Blue Winged Olive

Color: Brown Olive

Size: 22

Time:

Recommended Flies for Saint Vrain

Fly: Prince Nymph
Color: Brown Olive
Size: 20
Time: 
Prince Nymph Prince Nymph
Fly: Copper John
Color: Brown
Size: 20
Time: 
Copper John Copper John
Fly: Blue Winged Olive
Color: Olive Brown
Size: 18
Time: 
Blue Winged Olive Blue Winged Olive

Colorado Hatch Conditions for Late March

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 

Midges

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 


Weather for Saint Vrain

Current: 60 °F Partly cloudy Wind: 12 MPH NNE
Current Condtions

Partly cloudy

Temperature: 60 °F
Humidity: 33%
Wind: 12 mph NNE
Pressure: 14.75 psi
Cloud Cover: 50%
Wednesday's Forecast
weather forecast: Patchy rain possible<br/> High: 47 °F  <br/>Low: 28 °F <br/> Wind: 7 mph E
Patchy rain possible
High: 47 °F
Low: 28 °F
Wind: 7 mph E
Thursday's Forecast
weather forecast: Sunny<br/> High: 59 °F  <br/>Low: 35 °F <br/> Wind: 4 mph W
Sunny
High: 59 °F
Low: 35 °F
Wind: 4 mph W
Friday's Forecast
weather forecast: Light rain<br/> High: 39 °F  <br/>Low: 29 °F <br/> Wind: 7 mph E
Light rain
High: 39 °F
Low: 29 °F
Wind: 7 mph E