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Evolving System On Friday: Stay Tuned

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Friday’s storm is interesting and challenging; since it starts as a rather weak storm in the morning and is forecast to develop into a strong storm by evening.  On Friday morning, winds will be light southeast and precipitation will be patchy and mixed.  After lunch the precipitation becomes more organized and winds increase and back to the East-Northeast.

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During the afternoon and evening the storm intensifies rather rapidly.  The precipitation will become very organized and the winds will increase to strong northeast of 50 or 60km/h with coastal gusts likely to 90km/h in eastern NS which could cause power outages.

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The shift in winds to Northeast and then to North late in the evening will result in the likely changeover to snow (with some ice pellets in the evening along the Canso-Fourchu area.

Snowfalls will depend largely on the timing and the rate of development of the storm.  For Halifax, rain should start changing to wet snow after lunch and may be all snow by the drive home in late afternoon.  If it changes to snow earlier, amounts will be on the higher range (25cm).  If it doesn’t change until suppertime, amounts will be on the lighter range (10-15cm).  Inland areas typically more likely to see the higher amounts.

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This snowfall chart is amongst the worst case scenario amongst the forecast models.  Nevertheless, better for folks in all three provinces to be prepared for this potential storm, and limit travel in the afternoon and not plan on travelling in the evening.

I’ll tweet updates

Stay Safe

Jim

 

 

 

 

About Jim Abraham

Jim has spent about 40 years in the weather business. He has been an operational forecaster from Halifax to Whitehorse. Jim started the Canadian Hurricane Centre, and has flown into a couple of these storms. As a senior executive within Environment Canada, Jim has managed weather research, weather services, and weather/water/climate observing programs. Retired from Environment Canada, Jim is the Atlantic Director for the Canadian Climate Forum, the president of the Halifax chapter of the Canadian Meteorological & Oceanographic Society, a partner in Climaction Services, and a part-time meteorologist on CBC radio. He is still participating in national and international activities related to weather preparedness. Having witnessed unprecedented advances in the science and technology of meteorology. Jim hopes that this blog will also be educational; enabling users to better understand weather-related phenomena, better interpret available information, and ultimately better able to make decisions to protect themselves, their family and their property. Jim welcomes any questions and suggestions.

 

The views and opinions expressed in this content are those of the author and do not necessarily reflect those of haligonia.ca.

http://yhzweatherguy.ca

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