Sun Today.. but Threat of Showers for Tuesday

With a lack of organized weather systems over BC, the North Coast will enjoy some sunny breaks today.  Also an upper level ridge over the South Coast will bring mainly sunny skies today for Metro Vancouver. However a deep cold upper level low over the prairies will keep an unstable northwesterly flow aloft, keeping fair weather cumulus clouds in the forecast.  A low will start to develop just off the North Coast this morning, and as it slides down the coast later today, we will see showers developing for the Central Coast and the South Coast overnight and tomorrow.