Daily Archives: May 20, 2018

Showers expected today across PEI..

Sunday, May 20th 8:45am.. A low pressure system located near the Quebec/Labrador border this morning continues to move NE. A warm front extending SE from the low moved across the island during the overnight hours which was responsible for the rain. A cold front extending SW from the low is currently located along the St Lawrence River Valley and will sweep across the island later this afternoon bringing another round of showers but more importantly, a wind shift to the NW and some cooler air. Sunshine expected to start the day tomorrow but another cold front will sweep across the region later tomorrow bring some cloud and slight chance of a shower.High pressure will then crest over the Maritimes Tuesday morning with sunshine and light winds. Clouds return late Tuesday as a frontal system oriented east-west begins to drop down from the north. This front will bring some shower activity to the island on Wednesday as it continues to move south. Much “colder” air is expected in the wake of this front for Thursday. Showers develop again on Friday as a warm front moves through. Much warmer conditions expected over the weekend with low pressure passing well north of the Maritimes.

Precipitation.. Generally 8-12 mm rain fell across the island overnight. Here in the New Haven area, I recorded 11.2 mms. Few off and on showers expected today becoming more frequent later today as a cold front approaches. Dry overnight into tomorrow morning then another chance of showers late tomorrow afternoon/evening associated with another cold front. Dry on Tuesday then some showers on Wednesday and again on Friday,Saturday and Sunday.

Temperatures.. Normal today through Wednesday. Below normal on Thursday and Friday. Warm-up for the weekend into early next week.

Wind.. Light-brisk SW winds now will shift to the NW later this afternoon with the frontal passage then shift back to the SW for tomorrow. Winds will again shift to the NW late tomorrow afternoon with the 2nd cold frontal passage. Light and variable winds on Tuesday as high pressure crests over the island. Winds will become southerly late Tuesday increasing to brisk SW overnight into early Wednesday becoming northerly Wednesday evening marking the frontal passage. Cold northerly winds continue on Thursday becoming southerly on Friday. Brisk SW winds for the weekend.

Hazards.. Wet driving conditions in showers today. Clear skies and diminishing winds may lead to frost tonight inland low lying areas. Frost possible again tomorrow night as well.

Watches/warnings.. None for PEI at this time..

Forecast..

Today.. Cloudy with chance of showers, light-brisk SW winds shifting to NW late this afternoon, highs 17

Tonight.. Cloud and showers early then clearing, diminishing NW winds, lows 0/+3 giving a risk of frost.

Tomorrow.  Sunny start becoming cloudy with chance of showers late afternoon/evening. Light-brisk SW winds shifting to NW early evening, highs 14

Tuesday.. Sunny becoming cloudy late in the day, light south winds, highs 17

Wednesday.. Cloudy with a few showers, brisk SW winds shifting to north by evening, highs 18

Thursday.. Sun and cloud, light North winds, highs 10

Friday.. Increasing clouds with showers late, light south winds, highs 11

Saturday.. Cloudy, chance of showers, light-brisk SW winds, highs 19

Sunday.. Cloudy, chance of showers, light-brisk SW winds, highs 22

 

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