on the water we use the Canadian ?US weather channels, they broadcast and send charts of weather fronts . These help when we are out far.
you can try the MOTHER OF ALL MARINE LINKS, get there from Johns page and then find the weather links. There are station reports from all over, I hope GUAM is in the batch. Because I get a strong vibe that you are seeking Guam, or some island out in the guaamish neighborhood.
Its a gift, this precognition.
www.boat-links.com