They probably don''t. I have found that NOAA weather
radio covers such a large area that it is not always accurate. Example the 31 knot winds of about two months ago when NOAA weather
radio was saying it was 10-15.
But YOU can get real time weather info from Thomas Pt Light on the net. I use a cheap cable that connects my Palm Pilot to my cell phone. I can get email or surf the net. I usually check the real weather data from the NOAA TPL site and real time weather
radar from weather.com before heading out.
Looking at the TPL station logs, the winds were NNE at a steady 10 knots true, at that location, all day from before 0600 onward. Checking in the am, you would have been able to know that. I think you can also dial up these sites by phone now for an audio reading of real time or near real time weather info.
Best,