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Thunderstorm Reference Libraries

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Weather Model Discussion How To Use Surface Dew-points For
2013-01-29 08:53:47

Surface Dew-points can play a huge role in weather forecasting. The first such role is that it helps determine the amount of moisture in the atmosphere for a given point. If we look at the current dew-point map above from January 28, 2013 we can note several things of interest. First, if we look at where the black circle is around the number 70, we can make note that this air right off the...

Weather Education - Air Mass Thunderstorms
2013-01-13 10:30:47

Air mass thunderstorms are found in marine time tropical air. In short they are also known as MT Thunderstorms. Air mass thunderstorms represent what is known as the common three stage thunderstorm development. This means that an air mass thunderstorm goes through the stages of Cumulus which is represented by the updrafts only being present; secondly it moves into the mature stage where it...

Weather Education - Super-cell Thunderstorms
2013-01-13 09:51:18

In this lesson we are going to take a look at super-cell thunderstorms and what they mean and how they impact our daily lives. First, a super-cell thunderstorm is formed from a cumulus-nimbus cloud.  Super-cell thunderstorms are the most advanced form of thunderstorms known on earth. This is because these types of thunderstorms need so many things to come together in the atmosphere at the...

Weather Education - Orographic Thunderstorms
2013-01-13 09:40:16

Orographic thunderstorms are formed when the air is pushed up a mountain side. This type of thunderstorm is found only on the windward side of a mountain range. In the United States we would find these types of thunderstorms on the western slopes of the Rocky Mountains and also on the western slopes of the Appalachians. Things that make this thunderstorm important: First of all they only...

Post Weather Report From September 5 2012
2012-09-06 08:00:50

September 5: The southwest was encompassed in the monsoon rains yesterday bringing areas of flash flooding to portions of Arizona. Another smaller but large flooding event occurred along the Mississippi Gulf Coast where places in Jackson County received 7inches of rainfall in 2 1/2hours which lead to large flooding problems of already saturated grounds from Isaac-1. The heat persisted in...

Daily Weather Summary From July 4 2012
2012-07-05 08:00:00

The brief reprieve we saw this week in terms of temperatures has run its course as warmer temperatures will be reinforcing itself into the picture for the latter part of this week and weekend. Wednesday brought many 4th of July festivities and celebrations, as well as temperatures that closed into triple digits for places like Chicago in the mid-west. The 4th of July also featured fireworks...

Cumulus-nimbus Clouds
2014-01-11 00:00:00

The image above shows a Cumulus-nimbus cloud that has an anvil top to it. The reason that can be identified is that the cirrus is in place above the center of the storm. The image below does not have an anvil top yet. The anvil top forms on CB clouds after they reach the height in the atmosphere where they begin to feel the upper level winds becoming too strong for them to continue development...

The Story And News Behind This Past Weekends Derecho June
2012-07-02 08:00:47

This past weekend we saw a massive line of storms impact large areas of the country from Iowa to Maryland in what is known as a Derecho. What is a Derecho? The best way to define this weather feature is by describing a large mass of t-storms combining together to form an elongated region of storms which can create intense surface winds that can blow in excess of 60mph reaching well into the 100...

The Great Lakes And Their Impact On The Weather
2012-07-23 08:58:48

The Great lakes have a huge impact in the weather for the cities that are near the lakes. In the fall and early winter months the lakes can create intense snowfall events known as “Lake Effect Snow”. The reason that this occurs has to do with the water temps of the lakes and also the temps of the air that is moving across them. When an Alberta Clipper system forms in Canada and moves...

Cumulus Clouds
2012-07-16 11:04:21

Cumulus clouds are white in appearance and are formed when warm moist air near the earth’s surface is forced aloft by day time heating. Cumulus clouds are usually associated with nice weather, however if they continue to grow and get more moisture and instability with them they can turn into Towering Cumulus and CB clouds which would change the weather to increase the chance of seeing...

Word of the Day
ecotone
  • A transitional zone between two communities containing the characteristic species of each.
The word 'ecotone' comes 'eco-' plus a Greek root meaning 'tension'.