Lunar and Solar cycles have a great influence, not only on our weather, but also on our climate. Why can't the moon, which causes tides in our oceans, also cause tides in our atmosphere? The force of gravity works on both equally! These atmospheric waves affect our weather. Doesn't the sun spew out charged particles that are captured by the earth's atmosphere? Could these charged particles, in some way, affect the jet stream, storm development and storm movement? Could the sun, with its changing length of sun spot cycle control temperatures around the earth? Short sunspot cycles (less than 11 years) can induce a warmer climate while longer cycles (12 or even 13+ years) can result in a cooler climate.
The sun is the main driver of our weather and climate. Much of our energies have centered on what really influences the sun and how these changes affect weather and climate on earth. Unfortunately, we are at a tremendous disadvantage. We only possess a limited number of years with specific weather observations. At best, records only "look back" one hundred to two hundred years. This is just a "blink of an eye" when compared to the history of weather on earth (millions of years.)
To produce a long-range weather forecast, all the information we have gathered is fed into a series of computer programs. The programs then calculate an analog date. An analog date is a date, from the past, which has conditions (Sun & Earth, Sun & other Planets, Moon & Earth) similar to the date for which we are making the weather forecast. Unfortunately, if the analog date happens to be a date from the 14th century, it is completely useless since no weather records exist that far back. In this case we must select a "second best" analog date. Suppose this second date is from the 15th century. Again it is worthless. Thus, because of a lack of weather data during the "early years" it is very possible the analog date we finally use could be our 4th, 5th or even 6th choice. Naturally, this will not nearly be as accurate as our first choice.
Our forecasts will improve each day as we gain more knowledge and as we add more weather data to our worldwide weather database.