Feb 21th-7:30pm Update
Post date: Feb 22, 2014 12:30:15 AM
Strong 980mb low pressure system is still located directly north of region in Ontario. Temperatures are hovering in the upper 30's currently with the warmest temperatures located to the south and coldest to the northwest. The strong negative tilt of the 980mb is allowing the areas to the northwest to remain colder. Winds are relatively low right now as the low pressure is continuing track north and we are loosing daytime heating.
Saturday should remain mostly cloudy and dry during the day, expect afternoon highs to reach the mid 40s. A short wave will arrive Saturday night and increase our chances for snow Saturday night-Sunday. Right now any accumulation from looks to be minor and less than one-half inch. High pressure will move in behind the disturbance Sunday and this will keep temperatures colder than the last several days with highs temperatures expected to reach only the lower 30's.
A large trough looks to set up the weather pattern for next week. This will allow arctic air to spill south out of Canada for next week. This will keep afternoon highs below normal for all of next week. A relatively strong northwest flow will setup during the middle of next week along the periphery of this deep trough. This may heighten our chances for snow during the week as Alberta Clippers could develop along this boundary. Right now, will only mention the possibility of this and leave it out of the forecast for the time being.