Friday 9:15am A slow moving low pressure system east of NS will continue to move eats to lie over south eastern Newfoundland by this afternoon meanwhile a ridge of high pressure will approach from the west and expected to cross the island tonight and off the east coast by Saturday morning. A cold front will cross the Maritimes on Sunday with possible significant amounts of rainfall. This front will begin to slow down as it pushes up against hurricane Leslie on Monday. Actually, the advances front will help keep well offshore late Monday. An area of high pressure will then build in behind this front for Tuesday, crest over the region on Wednesday and move off to the east on Thursday. Another cold front will approach from the west on Friday.
Precipitation.. Chance of few showers or drizzle this morning but conditions will be drying out today. Showers will develop early Sunday morning becoming periods of rain on Monday ending near dawn on Tuesday. Rainfall amounts near 20 mm possible. Showers develop again on Friday.
Thunderstorms.. Chance of storms on Sunday/Monday
Wind.. Light northerly winds this morning shifting to southwesterly this evening. Brisk southerly winds on Saturday increasing to strong southerly on Sunday with gusts to 80 possible. Winds will shift and diminish to northerly early on Monday as the cold front crosses. Wind will increase again to brisk/strong northerly on Tuesday as Leslie passes by well offshore. Diminishing northwest winds on Wednesday.
Temperatures.. Normal today becoming above normal for both Saturday and Sunday, much cooler for Monday and Tuesday behind the front then back to normal for Wednesday.
Tropics..Hurricane Leslie has stalled again about 670 KMS SSE of Bermuda and is barely maintaining hurricane status with max sustained winds of 120 KMH. Dry air and cooler up-welled water is hindering strengthening at this time. Leslie is expected to begin drifting north later today then increase its forward speed tonight/tomorrow. Leslie should pass east of Bermuda on Sunday then enter Canadian marine waters Tuesday afternoon then make landfall in southeast Newfoundland on Wednesday morning near dawn. This is the scenario right now and will change as new model data becomes available. The cold front moving through the Maritimes on Sunday/Monday should help steer the hurricane east of the Maritimes but Newfoundland is still vulnerable for landfall on Wednesday morning.
Today.. Cloudy with few showers or periods of drizzle ending during the day. Light north winds, highs 19
Tonight.. Clearing, light southwest winds, lows 15
Saturday..Cloudy, light southwest winds, highs 23
Sunday. Overcast with showers (Thundershowers) developing early, brisk/strong southerly winds with gusts to 80 possible, highs 25
Monday.. Rain (20 mms), diminishing northwest winds, highs 17
Tuesday.. Typical cool, breezy fall day. Cloudy, brisk north winds, highs 16
Wednesday..mix of sun and cloud, diminishing northwest winds, highs 20
Thursday. Mix of sun and cloud, light southwest winds, highs 21
Friday.. Cloudy with showers