Upper-level winds across New Jersey may be out of the NW but light westerly surface winds should provide enough room for migrants to move on Friday night. These conditions should result in a moderate migration event coinciding with the kickoff of the Big Day at midnight. This does increase the probability that staked out migrants may move on Friday night, so keep that in mind.  Garret Mountain and other inland migrant traps should see new birds on Saturday morning as conditions will be clear throughout Pennsylvania and the southern Mid-Atlantic, and coastal traps (especially those in the southern half of the state) should see an influx of birds as upper level NW winds and surface westerlies push them east. The greatest influx is expected into the southern half of the state where winds are forecast to be lighter. Also, expect good clear listening conditions to help pick out those migrants overhead. Given the high ceiling, the best listening will likely occur in the couple of hours predawn on Saturday and again just after dark on Saturday night.

I will post a special forecast here by 10:00pm Eastern Time with updated weather information regarding the World Series of Birding, so be sure to stop by.

Good Birding and Good Luck!