Big Thompson Fly Fishing Report - Friday, Jul 12, 2019
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Fishing
ReportRating: GOOD -
Historic Hatch
ConditionsLate July -
Water
Flows353 cfs -
Weather
Current/Forecast63 F
Fishing Conditions: GOOD
Somewhat Crowded
Fly Fishing Report Date:
Friday, Jul 12, 2019Weather & Water Conditions
| Weather | Water |
|---|---|
| Temp: 60+ | Temp: 44-47 |
| Sky: Clear | Flow: 150 |
| Wind: None | Clarity: Crystal Clear |
| Precip: None | Runoff: No |
Colorado Stream Update: The Big T is giving up some good days on the water
Current Conditions at Big Thompson:
Currently flowing around 150 CFS the Big Thompson is good choice for a day on the water. Fish have been found both on top and beneath, so you might as well give them both! Hopper-dropper rigs are ideal for most circumstances, expect most eats below though so be sure you are fishing the right depth. Two-bits, PTs, and RS2's are a good place to start. Stimis, and Amy's ants are good for towing a deep nymph. Focus efforts towards side seems, but look for fish to move into riffles throughout the day.
Our local creeks provide the dry fly angler with amplitude of opportunity close to Denver and Boulder! Now is some of the best fishing of the year! All you need is a big attractor dry fly and a bead head dropper. It is wet wading season bring your shorts and wading boots! The fishing is good. Clear skies and 60+ degree weather. The water temperature was between 44-47 degrees and Crystal Clear.
Likely Catch
Species: Rainbow
Weight: 2 lbs 4 oz
Length: 17 inches
Girth: 7 inches
Rainbow Trout Female
Rainbow Trout Male
Current Insect Hatches at Big Thompson
None
Recommended Flies for Big Thompson
Fly: Soft Hackle Pheasant Tail
Color: Brown
Size: 18
Time: All Day
Soft Hackle Pheasant Tail
Fly: Rainbow Warrior
Color: Gray
Size: 16
Time: AM
Rainbow Warrior
Fly: Caddis Pupa
Color: Green
Size: 16
Time: PM
Caddis Pupa
Colorado Hatch Conditions for Late July
Caddisflies |
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Insects: Green Sedge
Color: Olive to Gray Brown
Dates: Jul 15 – Sep 30
Emergence: Morning & Afternoon
Size: 12-14
Spinner Fall: NA
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Insects: Little Black Sedge
Color: Chocolate to Black
Dates: Jul 15 – Sep 30
Emergence: Sporadic
Size: 16-18
Spinner Fall: NA
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Insects: Little Plain Brown Sedge
Color: Brown to Chocolate
Dates: Jun 15 – Aug 30
Emergence: Sporadic
Size: 14-16
Spinner Fall: NA
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Insects: Little Sister Sedge
Color: Green to Greenish Brown
Dates: May 15 – Aug 30
Emergence: Afternoon & Evening
Size: 14-16
Spinner Fall: NA
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Insects: Little Tan Short Horn Sedge
Color: Dark Brown to Yellow
Dates: Mar 1 – Aug 30
Emergence: Sporadic
Size: 14-16
Spinner Fall: NA
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Insects: Little Western Dark Sedge
Color: Dark Brown
Dates: Jun 1 – Aug 15
Emergence: Mid Day
Size: 16-18
Spinner Fall: NA
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Insects: Micro Caddis
Color: Yellow, Orange or Brown
Dates: Jun 15 – Oct 15
Emergence: Sporadic
Size: 20-22
Spinner Fall: NA
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Insects: Spotted Sedge
Color: Brownish Yellow
Dates: May 15 – Sep 30
Emergence: Sporadic
Size: 10-12
Spinner Fall: NA
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Mayflies |
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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
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Insects: Callibaetis Speckled Dun
Color: Tannish Olive to Olive Gray
Dates: Jun 1 – Aug 30
Emergence: Cloudy, Late Morning
Size: 14-16
Spinner Fall: Late Afternoon
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Insects: Early Pale Morning Dun (PMD)
Color: Olivish Yellow to Yellowish Pink
Dates: Jun 1 – Sep 15
Emergence: Mid Morning to Early Afternoon
Size: 16-22
Spinner Fall: Late Evening
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Insects: Ginger Quill
Color: Pale Cream to Whitish
Dates: Jul 1 – Sep 15
Emergence: Morning
Size: 14-16
Spinner Fall: Evening
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Insects: Gray Drake
Color: Gray
Dates: Jun 1 – Nov 30
Emergence: Late Morning
Size: 14-16
Spinner Fall: Evening
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Insects: Iron Blue Quill
Color: Light Olive Tan to Blue Gray
Dates: Jun 1 – Aug 15
Emergence: Warmest part of day
Size: 20-22
Spinner Fall: Evening
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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
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Insects: Red Quill
Color: Reddish Brown
Dates: Jun 15 – Sep 30
Emergence: Mid Morning
Size: 14-16
Spinner Fall: Evening
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Insects: Slate Winged Drake
Color: Brown to Slate Gray
Dates: Jun 15 – Aug 1
Emergence: Early Afternoon
Size: 16-12
Spinner Fall: Evening
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Insects: Trico
Color: Black
Dates: Jul 15 – Sep 15
Emergence: Morning
Size: 22-26
Spinner Fall: Early Afternoon
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Insects: Western Green Drake
Color: Dark Olive
Dates: Jun 1 – Aug 1
Emergence: Cloudy, 1-4 pm
Size: 8-12
Spinner Fall: Evening
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Midges |
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Insects: Black Midge
Color: Blackish to Black
Dates: Apr 1 – Nov 15
Emergence: All Day
Size: 18-20
Spinner Fall: 2-3 Hours
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Insects: Chocolate Brown Midge
Color: Brown to Chocolate
Dates: Feb 15 – Dec 15
Emergence: All Day
Size: 20-22
Spinner Fall: 2-3 Hours
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Insects: Micro Black Midge
Color: Blackish to Black
Dates: Mar 1 – Nov 15
Emergence: Morning
Size: 22-26
Spinner Fall: 2-3 Hours
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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
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Stoneflies |
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Insects: Giant Golden
Color: Brownish Yellow
Dates: Jun 1 – Aug 1
Emergence: Follows Salmonflies
Size: 14-18
Spinner Fall: NA
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Insects: Micro Yellow
Color: Greenish Yellow to Yellow
Dates: Jun 1 – Aug 30
Emergence: 46-54° Water Temps Morning
Size: 18-22
Spinner Fall: NA
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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
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Insects: Yellow Sally
Color: Pale Yellow to Pinkish Yellow
Dates: Jun 15 – Aug 30
Emergence: Morning to Early Afternoon
Size: 2-8
Spinner Fall: NA
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Terrestrials |
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Insects: Beetle
Color: Brownish to Black
Dates: May 1 – Nov 30
Emergence: All Day
Size: 10-18
Spinner Fall: NA
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Insects: Black & Red Ant
Color: Red & Black
Dates: Jul 1 – Sep 30
Emergence: All Day
Size: 18-20
Spinner Fall: NA
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Insects: Black Ant
Color: Black
Dates: May 1 – Nov 15
Emergence: All Day
Size: 20-24
Spinner Fall: NA
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Insects: Cricket
Color: Brownish Olive to Black
Dates: Jun 1 – Nov 30
Emergence: Twilight & Dusk
Size: 8-16
Spinner Fall: NA
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Insects: Dog Day Cicadas
Color: Black & Orange
Dates: Jul 1 – Aug 31
Emergence: Varied
Size:
Spinner Fall: NA
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Insects: Grasshopper
Color: Green to Brownish Tan
Dates: May 15 – Nov 15
Emergence: All Day
Size: 2-14
Spinner Fall: NA
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Insects: Red Ant
Color: Red to Orangish
Dates: May 1 – Oct 15
Emergence: All Day
Size: 18-22
Spinner Fall: NA
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Current Conditions
Currently: Thunderstorm
Temperature: 63 F
Temp Max: 77 F
Temp Min: 49 F
Humidity: 61%
Wind: 13 W mph
Pressure: 1021
Saturday 9:00PM — 50 ℉ Expect scattered clouds with temperatures ranging between 50 and 53 ℉.
Wind: 9 ESE mph; Humidity: 61%;
Sunday 6:00AM — 47 ℉ Expect few clouds with temperatures ranging between 47 and 48 ℉.
Wind: 9 SE mph; Humidity: 68%;
Sunday 9:00AM — 64 ℉ Expect clear sky with temperatures ranging between 64 and 64 ℉.
Wind: 8 WNW mph; Humidity: 42%;
Sunday 12:00PM — 70 ℉ Expect clear sky with temperatures ranging between 70 and 70 ℉.
Wind: 19 NW mph; Humidity: 27%;
Sunday 3:00PM — 70 ℉ Expect scattered clouds with temperatures ranging between 70 and 70 ℉.
Wind: 25 NW mph; Humidity: 29%;
Sunday 6:00PM — 68 ℉ Expect scattered clouds with temperatures ranging between 68 and 68 ℉.
Wind: 20 NW mph; Humidity: 33%;
Sunday 9:00PM — 52 ℉ Expect clear sky with temperatures ranging between 52 and 52 ℉.
Wind: 14 E mph; Humidity: 73%;
Monday 6:00AM — 47 ℉ Expect clear sky with temperatures ranging between 47 and 47 ℉.
Wind: 13 SE mph; Humidity: 69%;
Monday 9:00AM — 66 ℉ Expect scattered clouds with temperatures ranging between 66 and 66 ℉.
Wind: 5 SSW mph; Humidity: 35%;
Monday 12:00PM — 72 ℉ Expect scattered clouds with temperatures ranging between 72 and 72 ℉.
Wind: 20 NW mph; Humidity: 25%;
Monday 3:00PM — 69 ℉ Expect scattered clouds with temperatures ranging between 69 and 69 ℉.
Wind: 44 NW mph; Humidity: 36%;
Monday 6:00PM — 63 ℉ Expect light rain with temperatures ranging between 63 and 63 ℉.
Wind: 8 NE mph; Humidity: 46%; Rain: 0.75 for next 3 hours.
Monday 9:00PM — 54 ℉ Expect broken clouds with temperatures ranging between 54 and 54 ℉.
Wind: 14 ESE mph; Humidity: 66%;
Tuesday 6:00AM — 47 ℉ Expect clear sky with temperatures ranging between 47 and 47 ℉.
Wind: 8 SE mph; Humidity: 69%;
Archived Fishing Reports for Big Thompson
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