Tuesday, November 27th 7:00am.. A low pressure system located located near Cape Cod this morning will remain basically stationary over the next 12 hours or sow and will give a cloud rain and wind to the island today. There could be a mix of rain and snow for central and western PEI early. Secondary low pressure will develop well south of NS tomorrow morning. This system will then intensify and move northward towards Cape Breton and become the primary storm system by Wednesday night. Very string north winds will develop as this system intensify and moves closer. Colder air is then expected to spread south across the island late Wednesday into early Thursday which may change the rain over to snow. Still unclear right now as to the timing and extend of this colder air which will impact snowfall amounts. Will have better idea tomorrow. This strong storm then begins to move away to the east on Friday allowing for conditions to improve with diminishing north winds and clearing skies although onshore cloud/showers/flurries may persist. High pressure crests over the island Saturday night with clear skies and calm winds. Skies cloud up on Sunday as a large area of low pressure over the Great Lakes approaches. This system is expected to track towards the Maritimes with rain and or snow by Sunday night into MOnday but too early to go into details.
Precipitation.. Rain spreads across the island late this morning which could be come mixed with wet snow across western half of the island or higher elevations. No accumulations expected of snow expected. This rain/snow mix ends noonish tomorrow with rainfall totals near 10 mms. Rain then redevelops tomorrow night as the second system intensifies and moves closer. The big question mark will be how much cooling takes place with these strong north winds. Will it be enough to change the rain over to snow. Up west and higher elevations have the best chance to see this change over. Either way, there will be significant amounts of precip either rain and/or snow. Will have a better idea tomorrow. Precip tapers to showers/flurries Thursday night as the strong storm pulls away which continues into first half of Friday. Dry on Saturday under high pressure. Need to watch Sunday/Monday for possible snow event.
Temperatures.. No real Arctic air this period. Temps should be at or slightly above normal through Friday then at or slightly below normal Saturday through early next week.
Wind.. Increasing easterly winds today peaking near midnight tonight then diminishing. Winds then re-intensify Wednesday night peaking Thursday near noon withy northerly gusts to 90 KMH. Winds slowly diminish on Friday dropping off to calm by Saturday morning. Light SE winds on Sunday.
Hazards… 2 wind events expected. First tonight which may result in bridge restrictions with strong east winds. The second event which I think will be more significant as the wind direction is northerly peaks Thursday noonish. This also looks to be strong enough to give bridge restrictions as well as large waves/surf along the north shore especially during the high tide cycle. This event is also of longer duration. Dawn Thursday through dawn Friday. So a couple of high tides possible here. We also will have to deal with significant rainfall on Thursday which could become snowfall. A stormy few days ahead. Improvement on Friday…
Watches/warnings.. Special weather statement remains in effect for all of PEI regarding this weatehr system(s).
- Today.. Cloudy with rain developing near noon. Possibly mixed with snow. brisk east winds, highs +2
- Tonight.. Rain mixed with snow at times. Brisk-strong east winds, temps steady near +3
- Tomorrow.. Rain ending near dawn, diminishing east winds initially then increasing northerlies late, highs +5
- Thursday.. Snow and /or rain, strong north winds, highs +3
- Friday.. Onshore cloud showers/flurries, brisk north winds, highs +3
- Saturday.. Sunny, calm winds, highs +2
- Sunday.. Snow/rain developing late. +2
- Monday.. Snow/rain ending. +1