Passumpsic River Watershed Weather & Runoff Forecast
High-resolution 7-day atmospheric forecasts, hourly temperature curves, 7-day watershed rain accumulation, and river wind velocity for Passumpsic River near Passumpsic River At Passumpsic.
Rainfall Accumulation & Stream Surge Response
Precipitation in the Passumpsic River 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.