East Jordan Cnl @ Little Cottnwd Creek Watershed Weather & Runoff Forecast
High-resolution 7-day atmospheric forecasts, hourly temperature curves, 7-day watershed rain accumulation, and river wind velocity for East Jordan Cnl @ Little Cottnwd Creek near East Jordan Cnl @ Little Cottnwd Creek near Sandy (ds).
Rainfall Accumulation & Stream Surge Response
Precipitation in the East Jordan Cnl @ Little Cottnwd Creek drainage basin does not instantly translate into elevated gauge discharge. Water travels over soil, collects into feeder creeks, and surges into the main river stem over a multi-hour lag window.
When our forecast models project more than 1.0 inch of accumulated precipitation across the watershed, prepare for increased turbidity (brown water), elevated water velocity, and floating debris 6 to 24 hours after rainfall ends.
Paddling Wind Velocity & The 120° Rule
Headwinds & River Chop
Sustained winds over 15 mph opposing river current can create standing chop waves and push lightweight tubes or rec kayaks upstream, dramatically extending float durations.
The 120° Cold Water Rule
If the sum of air temperature (°F) and water temperature (°F) is below 120°F, hypothermia risk is high if you capsize. Wear a wetsuit or drytop when floating under these conditions.