Well there is many different things that go into a forecast. Here is a step by step approach.
1. Is look at the upper levels. From 300MB down to aleast 700MB. Are there trofs, ridges, jet streaks? Is that jet streak producing lift and rain at the surface? Is there warm air advection or cold air advection?
2. look at the surface map/radar. Look for fronts, high pressure systems, low pressure systems? Is there rain or snow. Is there warm air advection or cold air advection.
3 look at the models. See if they line up with what the surface map is say. Look at the upper levels too to see if they line up with the jet stream.
Than make your forecast based on all the data you looked at and use upstream wx stations also to determine the temp patterns.
That's all for now. But if you have any questions leave them in the comments section or e-mail me at b163@live.com. Thanks so much for reading.
Bryan Polivka
Ohio Weather Blog Forecaster
Cleveland Ohio
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