What aspects of weather determine extreme weather?
601189
Cold fronts, fast-moving jet stream, dry line, occluded front, and cold dry air moving into warm moist air will all contribute to extreme weather.  Often, in the southwest by the panhandles of Texas and Oklahoma as well as New Mexico, several of these factors will occur at the same time which can result in a severe weather outburst with several tornadoes, large hail, and lots of rain.
323126
Hurricanes, Blizzards, Monsoons, and Tsunamis
499205
WEATHER = rain, snow, windy, cold, warm, sunny\n\nWHETHER = whether she won or lost, it does not matter to me. whether or not I pass the test, I will always know that I tried my very best. whether or not it rains, I am still going to the movies.
66785
Latitude, altitude, prevailing winds.
1164804
I don't know if this what you are looking for, but here is a page which gives many types of meteorological equations.\n\nhttp://members.aol.com/Accustiver/wxworld_calc.html
28165
climate or atmosphere
788344
It always you to go about your life safe and compfortable.  The meteorologist on TV/radio tell you what to type of weather expect in the future so you can plan accordingly.  The National Weather Service and Storm Prediction Centers give you advanced notice of dangerous weather.  The National Hurricane Center watches for tropical systems.  Meteorology can help us determine why the Climate is changing and how to slow ot stop it.\n\nSo just think...without meteorology you might were a sweater when its 90 degrees out, get struck by lightning and walk into a Hurricane all caused by Global Warming and never even know why.
502323
Weather is a chaotic system; predicting it is difficult and only as accurate as the input data. Most TV and newspaper weather is very generalized - mass media is just entertainment and advertising, so you really shouldn't expect more than that. Military and agricultural forecasts are much more accurate but aren't free. It's been mathematically demonstrated that, even with the very best data possible, weather forecasts will never, ever be able to predict much more than 14 days out. Beyond that, things are just too chaotic.\n\nFor an example of truly accurate non-media weather forecasts, checkout SkyBit:\nhttp://www.skybit.com/cgi-bin/nav.cgi
335783
There are a lot of great sites that give basic weather predicting information.\n\nDifferences in air pressure are what causes the fronts--high and low pressure. High pressure areas generally have dry, good weather and areas of low pressure have precipitation.
637704
When you hear things like "20% chance of rain" or the like, what it means is this:\n\nUnder the conditions at the time of that forecast, the forecasting meteorologist makes an educated guess that about 20% of the time, those conditions will end up causing rain in the particular forecast area. Some of the conditions they look at are wind speeds, dew points, humidity, upper-level fronts and moisture, whether a cold or warm front is moving through, if a dry line is present, among many other things.\n\nAs you can see, with THAT many variables, it would be hard to get ANYTHING right 100% of the time. Especially since they have no control over things. Could be that a 5 degree change in the dewpoint could mean the difference between rain and no rain, and it is just not possible to know if it will actually change those 5 degrees, since there are many factors that go into calculating a dew point!
470040
Low and high pressure systems and air currents push and pull the CURRENT weather in one place into other places.  \nWhen certain types of weather conditions combine, they produce a third weather condition, such as cold air meeting humid hot air produces thunderstorms. \nWeather reporters observe existing conditions and extend their their motion to see where they will be in the future.\nAlthough it is not the most exciting thing on TV, if you watch the weather report on the news for your area, they will usually provide a 'weather in motion' map and tell WHY they are predicting what they are predicting.
526314
Weather is an all-encompassing term used to describe all of the many and varied phenomena that can occur in the atmosphere of a planet. The term is normally taken to mean the activity of these phenomena over short periods of time, usually no more than a few days in length. Average atmospheric conditions over significantly longer periods are known as climate. Usage of the two terms often overlaps and the concepts are obviously very closely related.
545433
THE CENTER OF A STORM -- THE "EYE" -- IS HIGH-PRESSURE, CALM AIR TO MILD BREEZE. \nTHE LOW-PRESSUERE PART OF THE STORM IS WHAT PUSHES BUILDINGS DOWN AND TIDES INLAND.
777295
Take a look at this site.  You will need to specify dates and places\n\nhttp://www.weather.gov/climate/
367121
They try to predict the weather.
791702
1) We don't know the precise state of the atmosphere and oceans everywhere at a given time.\n\n2) The mathematical equations used to forecast the weather are imperfect; approximations are made.\n\n3) The forecasts are run on a grid of points, at distinct time intervals, while the atmosphere operates smoothly at all time and space scales. That means that some processes occurring in the real atmosphere "get missed" by the forecast model and have to be approximated.\n\n4) The atmosphere is a chaotic, non-linear system, so small errors at the beginning of a forecast get larger and larger, until the forecast barely resembles what the atmosphere will be like in the future at all.
726645
A pressure drop is associated with stormy weather, while high pressure is seen with fair weather.  Air moves from areas of high pressure to areas of low pressure, so you can still have high winds in areas of high pressure, if low pressure is nearby.  The air carries moisture with it towards the low pressure, which is why storms and low pressure usually coincide.