Spring on the prairies

By: plapman , 1:08 PM GMT on March 29, 2007

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Today will bring rain at times mixed with snow ending this morning then clearing. The wind will become north 40 km/h gusting to 60 early this morning. The temperature will remain steady near 1 (34f). Tonight will remain clear. the the wind disapating near midnight. An overnight low of -6 (21f) is forecast.
The Trans-Canada highway west of Virden was closed for a while early this morning due to icy conditions. The weather watch has been lifted with with more rain than snow falling.
The Assiniboine River conditions are:
Levels continue to rise from St. Lazare to Grand Valley west of Brandon where the river is now somewhat above flood stage. Crests in this portion are expected to occur later this week or on the weekend. Ice in this portion is expected to move today or tomorrow. The ice jam at Spruce Woods has moved and appears to have passed through the PTH 34 this morning. Ice flows are likely to enter Portage Reservoir late tonight or tomorrow. This may require a brief diversion of up to 15,000 cfs. This morning 1000 cfs was being diverted to Lake Manitoba out of a total of 4800 cfs entering the Reservoir.
Tributaries in the area from St. Lazare to Virden are running very high but appear to have crested. Birdtail Creek and the Little Saskatchewan River are still on the rise but flooding is unlikely.

It appears that rainfall will be relatively light upstream of Shellmouth Reservoir, and as a result outflows from the Reservoir may need to be decreased very soon to help reduced river levels downstream. The reservoir water level has declined to near 1387 feet as outflows continue to exceed inflows. Runoff into the reservoir is just beginning as much snow remains to be melted in the Preeceville area.



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3. plapman
1:04 PM GMT on March 30, 2007
Good Morning Rob
No one has ever inquired. I do believe it is Provincial Trunk Highway. It must be a Manitoba thing.
I've heard the term spring freshette before but it never thought of how it came to be. I guess you've just explained it.
Have a good day
Tony
Member Since: August 18, 2006 Posts: 2496 Comments: 7386
2. GRANDMANAN
1:28 AM GMT on March 30, 2007
Anyone inquire one PTH stands for? Have not heard that reference since leaving Manitoba.

Freshwater coming out of the rivers around the Bay is becoming evident this far out, referred to as the'freshette'. The freshette affects lobsters for what ever reason, they don't crawl till it lets up.

Be careful on the PTH'S

Rob



Member Since: June 26, 2005 Posts: 3450 Comments: 1584
1. Frozencanuck
4:28 PM GMT on March 29, 2007
Good morning dear one..Yes flooding is always something to consider expecially with the snow melting quickly.

Hope you stay safe, warm and happy today. Sun is shining here but its a bit cooler than yesterday.
Member Since: December 8, 2006 Posts: 42 Comments: 4738

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Retired and loving it. If I'd have known about retirement befor I started my 40 year career with the government of Manitoba I'd have retired first. :)

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