Tuesday, May 29th 6:30am.. A low [pressure system is developing over the northern Gulf of St Lawrence this morning and will move eastward to lie over Newfoundland this evening. A cold front extending Southwestward front this low will sweep across the island near noon today ushering in some cooler air as well as shifting the winds to the NW. An area of high pressure then builds in from the west cresting over the island near noon tomorrow with sunshine. Sunshine will continue through Thursday and Friday as the area of high pressure continues to influence the weather but clouds will start to increase late Friday as a cold front begins to approach. The long ranger into the weekend is rather tricky as the various models are not in agreement. Moisture from Sub tropical storm Alberto is expected to merge with this cold front enhancing rainfall and thunderstorms activity but some models have this occurring across Quebec before the front moves into Atlantic Canada while others are bringing this heavy rain across the Maritimes for Saturday. Will have to wait a couple more days to see how the models handle this.
Precipitation.. Rain now will come to an end before noon as the cold front moves east giving total rainfall ion the 5 mm range. Dry for Wednesday Thursday and Friday. Rain begins again overnight Friday and continues through Saturday possibly into early Sunday.
Temperatures.. Today’s high temperature will actually occur over the next few hours then cooler air floods in behind the cold front this afternoon. Cool conditions continue tonight and tomorrow. Above normal for Thursday and Friday then more cool weather behind that cold front on Saturday. Sunday is looking cold right now.
Wind... Light-brisk SW winds now will shift to the NNW near noon today behind the cold front. These brisk NNW winds will continue tonight and into tomorrow diminishing to light SW on Thursday then SE on Friday. Brisk north winds develop behind the cold front later Saturday and continue into Sunday.
Thunderstorms.. Chance of a rumble Friday night into Saturday associated with the cold front.
Hazards.. Wet driving conditions in rain this morning.
Watches/warnings.. None for PEI at this time..
- Today.. Rain ending before noon then clearing, light-brisk SW winds shifting to Brisk NNW near noon. High temps near 13 occurring this morning then falling with the wind shift this afternoon.
- Tonight.. Mainly clear, light-brisk NNW winds, lows 5
- Tomorrow.. Sunny, brisk NNW winds, highs 10
- Thursday.. Sunny, light SW winds, highs 19
- Friday.. Sunny start becoming cloudy later in the day with showers developing overnight, Light south winds, highs 21
- Saturday.. Showers possibly at times heavy, light SE winds to start shifting to brisk northerly, highs 16 in the morning then falling through the afternoon.
- Sunday.. Cloudy with showers, 9
- Monday.. Sunny, north winds, highs 11