Saturday, September 22nd, 7:55am…Welcome to Autumn as Fall officially arrives on PEI at 10:54pm this evening. Brisk-strong SW winds developed across PEI yesterday evening in advance of a strong cold front approaching from the west. This front sparked severe weather across eastern Ontario and Quebec yesterday afternoon with tornadoes reported near Ottawa. Actually there are several fronts which will cross the region over the next couple days.  The first front is now located in a NE-SW fashion and is moving across the island now. The 2nd front is just moving into northwestern NB and will continue to move SE sweeping across PEI later this morning and reaching the Charlottetown area near noon. Showers and brisk-strong SW winds ahead of the 2nd front will shift to NW in it’s wake. Cooler air also invades the island after the 2nd frontal passage resulting in a risk of frost tonight. High pressure begins to build in later today with clearing skies cresting over the island tomorrow morning. The 3rd cold front then moves across the island overnight tomorrow night into early Monday morning. Not much weather associated with this feature other than some cloud and slight chance of a shower. Strong cool Canadian high pressure then builds back in over the island for Monday and Tuesday. Clouds return late Tuesday with rain developing before dawn on Wednesday. This will be a prolonged rain event with an all-day rain on Wednesday and stretching onto most of Thursday. Weak high pressure for Thursday night into Friday with some dry weather then more rain Friday night as another weak system moves through.

Precipitation.. Showers ending near noon today. Chance of showers overnight tomorrow night. Rain begins Wednesday morning ending Thursday afternoon. Showers Friday evening.

Temperatures.. Will remain steady until about noon then fall slowly with the passage of that 2nd cold front. Another normal day tomorrow then cooler air for Monday and Tuesday after the 3rd frontal passage. Above Seasonal air returns for Wednesday.

Hazards.. Wet driving conditions in showers this morning. Brisk-strong SW winds shifting to NW may give some tree damage and power issues especially along the coast and higher hilltops. Possible frost tonight.

Watches/warnings.. Frost advisory in effect for tonight.

Forecast..

  • Today.. Cloudy and showers this morning along with brisk-strong SW winds, temps steady near 17. Clearing this afternoon, winds shifting to NW, temps slowly falling.
  • Tonight.. Clear,  light NW winds dropping off to calm by dawn tomorrow, lows 6 with 2 in low lying areas giving risk of frost.
  • Tomorrow.. Sunny, light NW winds, highs 17.. Cloud and chance of showers overnight.
  • Monday.. Sunny, light NW winds, highs 10
  • Tuesday.. Sunny start, increasing high clouds through the late afternoon, calm winds becoming light southerly, highs 13
  • Wednesday.. Light rain, light-brisk south winds, highs 19
  • Thursday.. Rain ending through the afternoon, light-brisk SW winds shifting to NW, Highs 21
  • Friday.. Sunny start, showers by evening, highs 19
  • Saturday.. Sunny, 16

 

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