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High-pressure area Reference Libraries

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Weather Education Impacts Of The Canadian High Pressure
2012-12-29 11:43:39

The Canadian High pressure center shifts into the United States throughout the year and has a major impact on the weather from season to season. In the summer when this high pressure moves in, the temps usually cool off by about 10-15 degrees. For example:  if the temp was 91F in Fargo, it would cool down into the 70s once this high moved in. The high also creates drier weather. In...

Upper Air Map Identification for July 6 2012
2012-07-06 12:00:10

Looking at the upper air map for the entire region from Alaska to the Atlantic Ocean we can identify a few significant features. The first is the deep low height center over Alaska, this is telling us that at 30,000ft the air is rising upwards allowing for the surface low to still be gaining strength. Also if you look to the west of that closed low you will see what is referred to as a jet...

Surface Weather Map Features for July 5 2012
2012-07-05 10:00:03

The morning weather map for July 5, shows us the current surface pressure readings. Surface Pressure is very important from a meteorological stand point. We use this to help us identify where our surface pressure centers are just like you see above. Our Low pressure area is over Northeast Colorado and also the High pressure over the Ontario area. Surface pressure is taken hourly from the...

Surface Weather Map Features
2012-07-16 14:20:04

Looking at the weather map above we can see that we have three and four digit numbers on the map. These numbers are known as Sea Level Pressure. They are recorded in MB. Looking at the Northern part of South Dakota we see a number at 995mb while over parts of Maine we see the number closer to 1020mb. So we would say that high pressure is over Maine, while low pressure is over the Dakota’s...

Polar Front Jet on the Water Vapor Image
2012-07-10 17:35:31

Water vapor satellite is used to identify moisture in the atmosphere. We can also use it to help us identify the Polar front Jetstream. The Jetstream is outlined in the above image with a red line. As you can see it travels through an area of black or what we refer to as dry air. The reason the polar front jet travels through dry air is that the winds associated with this jet can exceed...

Marine Time Polar Air Mass
2012-07-05 11:59:33

Another air mass that we have is known as "marine time polar air". This type of air is known for its cool and moist environment. The best location in the United States to find this air mass is in the Gulf of Alaska. Due to its high moisture content it tends to create a higher amount of precipitation in the region of Southern Alaska. This air mass at times can send increased moisture into the...

Continental Arctic Air-mass
2012-07-05 11:03:14

Continental arctic air mass is known for its very frigid and dry air. The most common place in the United States to find this air mass is in Alaska. However, in the coldest parts of the winter such as December and January along with early February it is not uncommon for this air mass to invade the Northern part of the United States. This air mass is responsible for bringing with it temps...

One Type Of Air Mass
2012-07-05 10:49:20

As a meteorologist you are taught quickly the term Air Mass. This term means an area of relatively flat and uniform terrain with the same temp and moisture content. There are places in the world that are conducive for being air mass zones such as Siberia and also the flat plains of Canada. However, the key is to remember that air masses move. The area in Canada is known as the Canadian High...

One type of an Air Mass
2012-06-05 19:10:04

As a meteorologist you quickly learn the term Air Mass. This term means an area of relatively flat and uniform terrain with the same temp and moisture content. There are places in the world that are conducive for being air mass zones such as Siberia and the flat plains of Canada. However, the key is to remember that air masses move. Canada it is known as the Canadian High pressure center....

Basic Understanding Of A Weather Map
2012-05-10 09:20:01

Weather maps can hand drawn or computerized. Weather products are distributed to the public for their awareness.. A blue H on a weather map stands for high pressure. If your location is on the eastern side of this blue H you can expect to see partly cloudy skies and light winds. If you are on the western side of the blue H it is possible to see mostly cloudy skies along with precipitation and...

Word of the Day
monteith
  • A large punch-bowl of the eighteenth century, usually of silver and with a movable rim, and decorated with flutings and a scalloped edge. It was also used for cooling and carrying wine-glasses.
  • A kind of cotton handkerchief having white spots on a colored ground, the spots being produced by a chemical which discharges the color.
This word is possibly named after Monteith (Monteigh), 'an eccentric 17th-century Scotsman who wore a cloak scalloped at the hem.'
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