Post-thunderstorm update

Weather

From now until 8 p.m. tonight there is a chance of showers as well as risk of thunderstorms. The likelihood of precipitation is medium with winds gusting from the east up to 50km/h until 5 p.m. then tapering off to a light easterly wind. The skies will clear to partly cloudy overnight.

Saskatoon experienced a thunderstorm last night with City rain gauges measuring accumulations ranging from 4.4mm in Silverwood Heights to 45 mm in Stonebridge, the rain gauge at the Shaw centre captured 23 mm.  Intensities were even more dramatic in the south and west areas of the city.

Water and Waste Stream

No storm related issues at the Water Treatment Plant.  The generators were put into “storm mode” when lightning started.

Last night two flusher crews were out checking/solving problem areas.

Today crews will perform inspections with Closed Circuit TV cameras in all low lying areas.  Catch basin crews are responding to calls of blocked street drains as needed.

Roadways & Operations

Roadway crews responded to approximately 20 popped manhole covers following last night’s storm.  One manhole cover was unable to be located and has been replaced.  Over the course of the night crews were able to re-open all sections of road except a closure on Melville Street; they are currently working to bring it back into service and expect it will be open sometime this morning.

Transportation

All traffic signals are operating fully except for 22nd Street and Hart Road which is operating in flash mode. Crews are troubleshooting and working to restore regular function.

Saskatoon Light & Power

The four major outages were restored before 10:00 p.m. last night. 

• Haultain, Adelaide/Churchill and Nutana Park. The outage was caused by a lightning strike damaging 3 poles. Power was restored at 9:36 p.m.
• Industrial neighbourhood. The outage was also caused by lightning damaging a capacitor bank. Power was restored at 9:38 p.m.
• Riversdale neighbourhood. The outage was caused by tree contacts. Power was restored at 8:29 p.m.
• Station 20 West. The outage was caused by damaged equipment from the storm. Power was restored at 9:20 p.m.

The smaller outages to single homes were restored by 12:30 this morning.  There were approximately 4650 customers affected.

For lingering impacts, SL&P has some tree trimming clean-up to finish this morning and 3 poles that will need to be replaced. These were the ones that started on fire due to the lightning strikes.   

Transit

Transit was back on schedule by 9:00pm.  There were some minor detours due to localized flooding.

Parks & Urban Forestry

Four reports of tree limb failures were made to dispatch last night and attended to or coned off for follow up response today. There have been an additional four tree damage calls that have been directed to Urban Forestry this morning. We have five Urban Forestry crews that will be responding to tree damage calls on a priority basis today.

Saskatoon Fire Department

Between 6 and 9 p.m. the SFD responded to 25 incidents; of those four involved tree contact or a downed power line which started fires; nine incidents were the result of fire alarms sounding. 

The Fire Department cautions the public against wading into storm water as there may be unseen hazards in the water such as missing manhole covers and dangerous debris. 

Standing water could also be extremely dangerous if there are downed power lines or if it became energized by a lightning strike.