weather reports are only a guide,as a good idea why dont you do a Aviation Met course? you would be more qualified than a weatherman!!
no seriously, in Aviation, there are TAFS (forecast)and Metars (actuals) i would say that a 4 hour forecast is 80% correct, a 24 hour forecast in 50% correct,
take today for instance, report from TV, aviation, etc said Heavy downpours, overcast at 800 ft in Bristol direction,
completely wrong, ....stunning summers day,,, so if you can really read the weather, wind strength and direction and of course tide data, you can forcast it your self !! just a idea!!! have fun