Surface low pressure to our south will result in south-easterly flow today. Zonal flow is weaker today as a surface low in Canada develops and the troughs deepen, however, zonal flow looking to continue through Thursday night which will result in westerly flow aloft. A cold front, now looking stronger than before, will pass through the area on Friday morning, bringing northwesterly winds with it. Though there is still little chance of precipitation Friday morning due to the dry air mass, some moist air will move in behind the cold front bringing a chance for showers Friday night into Saturday morning.  Northwesterly winds will continue on Saturday.

Note* like Julie stated in her comment yesterday, there is testing going on at the site this week that will take precedence.