Heat and humidity continues today across PEI..

Tuesday, August 7th 6:40am.. A weakening trough of low pressure crossed the region yesterday late afternoon/evening bringing showers/thundershowers. This trough is now in a much weakened state and is located north-south across Cape Breton. Another weakening cold front is currently located along the St Lawrence River Valley and moving east to be located across western NB later this afternoon then across PEI overnight tonight. Showers and thundershowers will accompany this feature this evening then dissipate as the front weakens. The front will stall in a much weakened state on Wednesday over the region but then begins to strengthen Wednesday night as low pressure begins to approach. This low will track NE along this frontal boundary bringing enhanced rainfall crossing the Maritimes for Thursday. The cold front which was stationary will then sweep eastward across the region finally bringing an end to the heat wave as cooler fresher air engulfs the Maritimes. A secondary front looks to cross the region Friday morning with a few more showers then clearing as these disturbances move east. The weekend was looking nice yesterday but things have gotten complicated with an upper air disturbance now expected to develop in the lower Great Lakes. How much this effects the region is the big question.

Precipitation.. Showers this evening which could be intense as strong thunderstorms come off NB. Showers again tomorrow evening which will then continue through Thursday and into Friday morning. There cold be a few showers around Saturday evening into Sunday morning.

Temperatures.. The heat and humidity continues today. A little cooler tomorrow due cloud cover and even cooler on Thursday due rain. A change in airmass on Friday with lower humidities and temps running near to slightly above through the weekend.

Wind.. Light-brisk SW winds today though Thursday evening shifting to NW on Friday.

Thunderstorms.. Risk of thunderstorms this evening. These storms are expected to be strong/severe over NB. If they survive the trip across the cool waters of the strait, then PEI may see some of these decaying/dying storms this evening as well. These storms could being heavy down pours.

Hazards.. Heat and humidity today.. Wet driving conditions in rain this evening. Heavy downpours will lead to water ponding on roads. Risk of strong thunderstorms. Stay alert for any watches/warnings issued later today if required.

Watches/warnings.. Heat warnings remain in place. Potential for thunderstorm watches/warnings to be issued later today.

Forecast..

  • Today.. Sunny becoming cloudy late this afternoon, light-brisk SW winds, hot and humid with highs near 30.
  • Tonight.. Showers/thundershowers this evening, light SW winds, lows 21
  • Tomorrow.. Sun and cloud, showers/thundershowers redeveloping towards evening, light-brisk SW winds, highs 27
  • Thursday.. Cloudy with showers/thundershowers, light-brisk SW winds, highs 22
  • Friday.. Morning showers then clearing, light NW winds, highs 25
  • Saturday.. Sun and cloud, 24
  • Sunday.. Cloudy chance of showers, 26
  • Monday.. Sunny, 22

 

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