Archives

All posts by SWOA

July 2, 2020

As first reported in our June 27 update, the Provincial River Forecast Centre has maintained the Flood Watch advisory for the South Thompson watershed. The Centre defines a Flood Watch as follows:

  • River levels are rising and will approach or may exceed bankfull. Flooding of areas adjacent to affected rivers may occur.

The River Forecast Centre have also maintained a High Streamflow Advisory for the tributaries to the South Thompson River including Shuswap River, Shuswap Lake and Adams River. (A high streamflow advisory is defined as – River levels are rising or are expected to rise rapidly, but no major flooding is expected. Minor flooding in low lying areas is possible.)

Monitoring of the recent River Forecast Centre predictions and observed lake levels have all indicated the slow decrease in the lake level over the past few days. However, the Forecast Centre information has consistently indicated that we can expect Shuswap Lake levels to increase by approximately 0.2 m between July 2nd and July 4th or 5th before lake levels again start to slowly decrease. As the high elevation snowpack continues to decrease steadily the wildcard in the predictions will be in how much rain we continue to receive over the next week. With generally drier weather forecast for next week, hopefully the predictions hold and we are nearing the end of the spring freshet runoff.

SWOA will continue to monitor the predictions from the River Forecast Centre as they are released over the next week and will provide an update if there is a change in the forecasted lake levels.

Flood Watch Advisory for the South Thompson Watershed June 27, 2020

The Provincial River Forecast Centre has issued a Flood Watch advisory for the South Thompson watershed. The Centre defines a Flood Watch as follows:

  • River levels are rising and will approach or may exceed bankfull. Flooding of areas adjacent to affected rivers may occur.

Note that the advisory applies to rivers but, due to the linkage between river levels and Shuswap Lake levels, issuance of the advisory does indicate that Shuswap Lake levels could increase and remain high for some time.

Our posting on June 24th indicated that Shuswap Lake levels would increase by next Wednesday increasing to a peak on June 29 and 30. However the current forecast predicts that these levels, rather than starting to decrease, would remain elevated until at least July 5th.

SWOA will continue to monitor the predictions from the River Forecast Centre as they are released over the next week and will provide an update if there is a change in the forecasted lake levels.

June 24, 2020

In our post on June 21st we reported that Shuswap Lake levels would remain near the current level (349.02 m) over the next week and then start to decline slowly at the end of June. The forecasts on June 22 and 23 reinforced the June 21st prediction. However, todays 10 day forecast from the Provincial River Forecast Centre indicates that South Thompson River discharges will remain near current levels until June 28th and then increase on the 29th and 30th before starting to decrease steadily in the first few days of July. This means that we can expect an increase in the level of Shuswap Lake of 0.16 m (0.52 feet) early next week followed by a decline of 0.1m (.33 feet) by the July long weekend.

SWOA will continue to monitor the predictions from the River Forecast Centre as they are released over the next week and will provide an update if there is a change in the forecasted lake levels..

Lake levels can be viewed by clicking here.

In our post on June 12th, we speculated that Shuswap Lake might remain stable near the annual peak over the following 10 days, possibly increasing by as much as 0.22 m (0.7 ft) to a peak on June 20th. Well, with the variable weather over the past week we were right that the lake should remain stable near elevation 349.0 m but it did not rise as predicted. SWOA has been monitoring the daily river discharge predictions released from the Provincial River Forecast Centre over the past week (each of which look 10 days into the future) and a clearer picture is starting to emerge. The most recent predictions are indicating that the level of the lake will remain near the current level over the next week and then start to slowly decrease at the end of June. This prediction is consistent with observed decreases in the high elevation snowpack across the watershed and the decreases in river discharge being observed in both the Salmon Arm and Shuswap Rivers. As well, the generally drier weather forecasts for the next week will contribute to this trend.

SWOA will continue to monitor the predictions from the River Forecast Centre as they are released until the end of June to make sure that the expected trend continues.

Lake levels can be viewed by clicking here.

Boat Licences

It has come to the attention of some of our members that they are receiving notifications from Transport Canada reminding them to renew their boat licences. Evidently it is suggested that owners do this renewal every ten years or when changes occur in their contact information or the status of the boat changes. There is no fee for a new license or to make a change.

Report a change:

If any of the following details change, you’re required to update your pleasure craft licence: owner address, owner name, owner phone number, owner email address, changes to the vessel

To report one or more changes, you will need the pleasure craft licence number and owner’s birthdate, along with supporting documentation such as: copy of a valid government-issued identification (ID) for each owner, full side-view colour photograph of the pleasure craft, and if one of the owners is changing their name, provide proof of name change.

Replace:

If your pleasure craft licence has been lost, damaged or stolen, you will be sent another one upon application. To get a replacement, you will need the pleasure craft licence number and owner’s birthdate, along with supporting documentation.
Note: There is a $250 fine if you are found operating a vessel without a valid licence document onboard.

Here are some websites with additional information:
https://www.tc.gc.ca/en/services/marine/vessel-licensing-registration/pleasure-craft-licensing/managing-licence-report-change.html

http://boating.ncf.ca/license.html

SWOA will hold it's AGM on August 19th at 7:00pm.

Due to the current Covid situation the board has elected to hold the AGM by video conference on ZOOM. To provide an efficient and secure meeting we are asking that any members wishing to participate in the video conference to pre-register. If you would like to attend please send an email to agm@swoa.ca and include your name, waterfront location and membership email.

Invitations to join the meeting will be sent to all registered attendees prior to August 19th. Only those members in good standing can attend and vote so please make sure your membership is up to date prior to the meeting.

Your membership due date is located on the right side bar once you have logged in.

Let us know if you need help or have questions about your membership or using ZOOM.

Thank you and we look forward to your attendance.

Douglas fir bark beetle have been increasing in population. Particularly around Sunnybrae Road area with all our recent wind fall events, and the simple fact that 99% of the tree species in that area are Douglas fir.

Infested trees should be removed before May (if in large enough numbers)  logged and trucked to a mill for processing which will kill all the larvae inside.    

Pheromone bubble packs are used to deter the Douglas fir bark beetle from attacking individual  Douglas fir trees.   These bubble packs are attached to the trees in the spring.  

When new beetles emerge, around late April early May, they are looking for stressed, mature, or wind-felled green live fir trees. Once they select a tree they burrow into the bark and  lay eggs in the cambium,  which slowly kills the tree, turning the needles red the following year.  Many of these trees go unnoticed because it takes so long for the needles to turn red.More information can be found at the Ministry of Forests, Lands, Natural Resources by clicking here.

 

The Decibel Coalition was started by a group called Safe Quiet Lakes from the Muskoka area of Ontario. They believe Canada’s current legislation is too weak to be enforced. Safe Quiet Lakes says it is time to enhance current legislation to include decibel limits for boat motor noise.

“We want reasonable standards, consistent with the USA and the EU and that are easy to enforce.” For more information and to get involved please contact the project team at decibel@safequiet.ca.

A group on Shuswap Lake has started a change.org petition and will promote this with the Decibel Coalition National group. To sign the Shuswap petition click here.

In our post on June 9th, we speculated that Shuswap Lake might remain stable near the annual peak over the following 10 days. Lake levels have dropped 0.1 m (0.3 ft) over the past 3 days but the Province’s forecast indicates that in flow in the South Thompson River flow will increase over the next 10 days, likely in response to the wet weather that is forecast over the watershed in the next week. Lake levels are expected to increase in the following week by 0.22 m (0.7 ft), reaching a peak on June 20th.

We will continue to monitor this information over the next 10 days as it is released by the Province to confirm the prediction for the date and elevation for the annual peak for the lake.

Lake levels can be monitored by clicking here.

In our post on June 4th, we speculated that Shuswap Lake might near the annual peak by today. Well, we were both right and wrong. Lake levels have dropped slightly over the past 5 days (0.06m(0.2 feet)) but with the remaining snow pack in the southern portion of the watershed, the Province’s recent forecasts are suggesting a further small decrease in flow in the South Thompson River followed by a small (and we hope the last) small increase in river flow. These changes translate to a small decrease in lake levels over the next few days followed by a small increase in the following week so that the lake level will peak between June 15th and 17th. Likely you won’t notice much change in the lake level over this period.

We will continue to monitor this information over the next 10 days as it is released by the Province to confirm the prediction for the date and elevation for the annual peak for the lake.

Lake levels can be viewed by clicking here.