Weather

Any of many phone apps can report predicted air temperature, cloud cover, precipitation, wind speed & direction.

NOAA-Northwest River Forecast Center – Willamette River @ Morrison Bridge – velocity & depth predictions, temperature history

Additional links for weather details

Portland Wind Forecast

National Weather Service

NOAA – Tides – Morrison Bridge predictions

USGS National Water Information System – measured data, no prediction

Willamette Sailing Club – measured data, no prediction

Go/No-go Notification

If we cancel practice before arriving at the dock, a TeamSnap Alert will be sent to all GD members, usually by a msg to the TeamSnap app on your phone, or by email. (See Using Teamsnap to setup your phone for Alerts.) IF YOU ARE IN DOUBT ABOUT PADDLING, CHECK YOUR PHONE/EMAIL BEFORE COMING TO THE DOCK!

Weather Criteria	Metric
Visibility at River Surface (daylight)¹	150 yards or more; the Hawthorne bridge must be visible from the River Place dock
Visibility at River Surface (night)²	red & green bow lights and white stern light visible from 100 yards
Air Temperature³	predicted air temperature @ 9AM >= 32^oF
Wind⁴	<17mph – 10 to 12 paddlers minimum 17 to 23mph – 14 paddlers minimum >23mph – no paddling
Storm forecast⁵	If storm forecast includes a warning for lightning, no paddling permitted
Air Pollution⁶	AQI > 100 – Unhealthy for Sensitive Groups AQI > 150 – Unhealthy, no paddling
River Velocity at Morrison Bridge⁷	>2.5 fps (1.7 mph) 14 – 16 paddlers minimum >3.0 fps (2.0 mph) no paddling
River Algal Bloom⁸	Oregon Health Authority, Public Health Division, issues advisories if cyanobacteria toxin levels exceed their criteria.
River E. Coli Count⁹	<406 is acceptable by Oregon Department of Environmental Quality
Combined Sewer Overflows¹⁰	If CSO occurs, Portlanders are advised to stay out of the water for 48 hours
City Severe Travel Warnings/Portland School Weather Closing¹¹	no paddling

Footnote #	Link
1	DSUSA Rules, Guidelines & Safety, “Fog/Reduced Visibility”
2	DSUSA Rules, Guidelines & Safety, “Rules Applicable to all DSUSA Boats, #6”
3	Operational Procedures Appx 5 – GD Water Safety Plan, “Sect. D-a-6”
4	DSUSA Rules, Guidelines & Safety, “Wind”
5	DSUSA Rules, Guidelines & Safety, “Lightning”
6	AirNow, Portland Air Quality
7	DSUSA Rules, Guidelines & Safety, “Current”
8	Oregon Health Authority, Cyanobacteria Blooms, “Current Advisories”
9	City of Portland Oregon Bureau of Environmental Services, “Morrison Bridge E. coli”
10	City of Portland Oregon Bureau of Environmental Services, “About CSOs”
11	Operational Procedures, “Sect. III-C-2”