Tomorrow, 2/27/08 will be Journey North's first weather forecast for migrating songbirds. There will then be a forecast every week from then until May 7. The short term weather doesn't look too good for the start of the eastern migration, but from the forecast map, it looks like the weather will be turning favorable for the western migration.
Here's the link to the webpage:
http://www.learner.org/jnorth/weather/AbornWeatherIndex.html