Wyoming Bighorn River (Thermopolis Wyoming)
Wedding of the Water downstream
Sunday March 24th, 2024
Weather Conditions: Weather Forecast
Spring weather is shaped by shifts in atmospheric pressure and wind patterns. High-pressure systems typically bring clear skies and warmer temperatures, while low-pressure systems can lead to occasional storms and rainfall as the atmosphere adjusts. These pressure changes often result in breezier conditions, making the weather more unpredictable. However, as we approach summer, the weather tends to balance out, becoming more consistent overall.
Water Conditions: Current Flows
We anticipate consistent flows for the next couple of weeks. However, it’s worth noting that last year, a flushing flow occurred on April 4th. Flows are likely to rise once water is requested for agricultural purposes. Any increase in flows could potentially impact the ongoing rainbow spawn significantly.
Hatches and Insects:
As spring temperatures rise, the ecological dynamics within streams undergo significant shifts. One notable change is the proliferation of baetis mayflies, commonly known as blue-winged olives. These insects emerge in vast numbers during spring, offering trout a substantial increase in food options.
Baetis mayflies, with their delicate bodies and distinctive blue-gray wings, become a prominent component of the trout’s diet as they hatch en masse. Their emergence presents a substantial food source, particularly for trout residing in streams where baetis populations are abundant.
The increase in baetis activity coincides with a broader surge in aquatic life within the stream ecosystem. Crayfish, for instance, become more active, scavenging along the riverbed, while minnows and other small fish become more plentiful.
This surge in available food resources translates into improved nutrition for trout populations. Individuals, once lean from the winter months when food is scarce, now have access to a diverse array of prey items, including baetis mayflies. Consequently, trout experience enhanced growth rates and overall fitness during this period of increased food availability.
As the spring season progresses and transitions into summer, the abundance of baetis and other aquatic prey continues to sustain trout populations, ensuring their continued health and vitality within the stream ecosystem.
Flies:
Dry Flies: BWO (18), Antonio’s Emerger (18)
Nymphs: Sow Bugs (Yum-Yum, Hot Head Ray Charles, Epoxy Back), BWO (Daysaver, Darth Baetis, Rainbow Warrior, Flashback Pheasant Tail, Mercury Baetis)
Streamers: Baby Gonga (Black), Conehead Muddler (Black), Skulpzilla (black)
Most fish are currently being caught on nymphs subsurface. However, there is improving activity on streamers, and dry flies are becoming increasingly effective as the Blue-Winged Olive (BWO) hatch gradually intensifies.
Local Regulations and Updates: 2024 Fishing Regulations:
