Tuesday Mar 11th 8:10am.. The high pressure system that gave the sunshine and cool temperatures to the region over the past few days is now located over Newfoundland and continues to move away to the east, meanwhile a low pressure system located in southern Quebec this morning will also track east moving across the Maritimes this afternoon. Snow from this system has already moved into western NB. This system pulls away this evening allowing weak high pressure to build in for early tomorrow morning then all interests shifts to the US southeast as a low pressure system tracks into the NYC area then moves Northeast towards the Maritimes. This storm system is now expected to move up the Bay of Fundy Thursday afternoon then across western PEI and into The Gulf of St Lawrence early Thursday evening. On this track, western PEI will see the bulk of the snow with a wintery mix of snow / ice pellets / freezing rain / and rain for eastern and central PEI. At any rate, this system pulls away Thursday night allowing high pressure to build in for Friday. Another low pressure system will be approaching form the west on Saturday pushing a wintery mix or snow and rain across the region for the weekend. The extended outlook is difficult at this time as the models are all over the place with the weekend system so can’t go into details until more consistency is achieved. Precipitation.. Light snow should spread across the island from west to east beginning late this morning and ending early this evening giving 1-2 cms. Snow from the developing noreaster should begin late tomorrow afternoon. The snow will change to ice pellets / freezing rain and finally rain across Kings and Queens county, with western PEI mainly all snow. Amounts will be in the 5 cms range for Kings, 10 cms for Queens and 15-20 cms for Prince. Rainfall amounts will be higher down east with 20 mm lowering to 5 mms for Prince county. Basically looking at about 30 mms of precipitation from this system. Eastern areas will see this starting out as snow and changing over to rain while western areas will see more snow less rain. Queens county should see half and half. Any rain will change back to flurries Thursday night as cooler air returns behind the departing low pressure system; Flurries should end Friday morning. More snow and rain expected to begin later Saturday. Temperatures.. Are expectd to be up and down over the period. Normal for today and tomorrow becoming above normal for early Thursday then cooling off Thursday afternoon becoming well below normal for Friday. Temps then warm up again for Saturday and Sunday. Wind.. Strong winds will accompany the noreaster peaking overnight Wednesday into early Thursday morning shifting from NE-E-SE.
Posted on: Tue, 11 Mar 2014 11:12:35 +0000
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