I'm not sure if the question is referring to "pass", a geological feature, or "past", in which case it's not clear whether you mean ten years ago or a thousand years ago.
So, here's a generic answer.
The basic "prediction" of weather comes down to "when it looks like this, what usually happens." When a meteorologist says "There's a 30% chance of rain tomorrow," what that basically means is "in this area we've seen conditions... temperature, wind, clouds, air pressure, all that stuff... like this before, and three times out of ten it rained the next day."
Nowadays (and actually for a considerable time in the past) computers are used for this, but really what's made forecasts more accurate than they used to be is not so much the fact that computers are used, but that we've got more data now. If you've only got records going back 20 years, then a given set of conditions may have only occurred a few times and your prediction is necessarily a bit shaky. If you've got records for 200 years, then you've got a bigger sample to base your predictions on.
Meteorologists.
Meteorologists study the weather and try to predict it.
for future food production we need to predict weather which will determines what types of crops should we plough
Weather balloons and Doppler Radar.
No. Meteorologists study weather. An astronomer would predict meteor showers.
Meteorologists.
yes
Meteorologists study the weather and try to predict it.
Meteorologists predict the weather.
for future food production we need to predict weather which will determines what types of crops should we plough
meteorologists predict the weather in specialized weather labs and tell the weather stations.
Weather balloons and Doppler Radar.
Meteorologists. In the US, National Oceanic and Atmospheric Administration (NOAA) and also many other organizations.
No. Meteorologists study weather. An astronomer would predict meteor showers.
Another name for a weather map is forecast. Many meteolologists use these satillite maps to predict the weather and deliever the weather to all citizens.
helps by pradication to the clouds
Because you can't never predict what weather is going to do.