Latest High-pressure area Stories

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2012-09-03 03:00:46

redOrbit Meteorologist Joshua Kelly Big Story Weather from Aug 31- Sep 2: The remains of Isaac continued to drench the Midwest with some much needed rain. However, it did come pretty fast leading to flash flooding as well as a few tornadoes to Missouri and Illinois. September 1 was ushered in with more tornadoes from Isaac as the tornados hit Arkansas, Missouri, Tennessee, Kentucky, and Illinois. Large areas of wind damage from Isaac spread eastward into the Mid-Atlantic region. Another...

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2012-08-20 03:00:47

redOrbit Meteorologist Joshua Kelly Big Story Weather from August 17-19: On Friday the frontal boundary continued to be the source of severe weather with the majority of the reports being strong wind damage from Texas into the Carolina´s. A few hail reports were also found in Kansas and Texas along with Arkansas. Saturday saw damaging winds in the Southern Plains and also very heavy rain along the Gulf Coast. On Sunday we saw more heavy rain along the Gulf Coast and also isolated hail...

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2012-08-15 03:00:11

redOrbit Meteorologist Joshua Kelly Big Story Weather from August 14: Severe weather was found in the Baltimore area along with places in Southern Maryland and Northern Virginia where multiple reports of 1-inch plus hail was reported. Strong damaging wind reports were scattered from New York state southward into portions of Alabama along the frontal boundary with a report of many places having tree damage. A second pocket of strong storms struck in the Northern portion of Texas along...

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2012-08-10 03:00:28

redOrbit Meteorologist Joshua Kelly Big Story Weather from August 9: Yesterday provided plenty in the way of severe storms which included hail and wind damage reports. There were over 200 wind reports spreading from Illinois eastward into PA and NY, as well as southward along the frontal boundary through KY and TN and MS and then east to west along the Gulf Coast from Florida back westward into Texas. Hail reports were confined to around the center of the low in the Midwest. The hot spots...

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2012-08-09 03:00:46

redOrbit Meteorologist Joshua Kelly Big Story Weather from August 8: The frontal boundary from Nebraska eastward into Illinois and Indiana caused several hail and wind damage reports, as well as southward into Kansas all the way into Eastern Texas. A second area of strong thunderstorms developed around the low near the Carolinas providing the area with damaging winds and hail. The largest hail was estimated around 2 inches and was found in Eastern Nebraska near the center of the low in the...

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2012-08-01 03:00:39

redOrbit Meteorologist Joshua Kelly Big Story Weather from July 31: The heat was in place from Oklahoma southeastward into Mississippi and parts of Alabama as the temps soared into the upper 90´s and lower 100´s with heat index values around the 105-110 range. Yesterday we did have some storms that fired along the frontal boundary in the Midwest and Great Lakes bringing with it an isolated tornado report to Illinois. There were multiple hail reports in this region also and wind...

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2012-07-25 03:00:55

redOrbit Meteorologist Joshua Kelly Big Story Weather from July 24: The heat continued for another day throughout the Midwest and also extending back into the Plains were temps hit the upper 90´s with heat index values well over 100. The southeast is also getting its share of the heat now with temps soaring into the 90´s and heat index values well over 100 for many places. Damaging wind reports were found in the Western Dakota´s. Also, a larger, more evolved storm system...

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2012-07-16 03:00:21

redOrbit Meteorologist Joshua Kelly Big Story Weather from July 13-15: Friday was not very active on the severe weather front with only a few hail reports in Iowa, Minnesota and out west in Washington. Strong gusts resulted from thunderstorms in places like Oklahoma and Kansas. On Saturday an isolated tornado was reported out on the Atlantic Ocean section of Virginia along with a wind report over 75mph in the Western portion of South Dakota. Sunday brought another day with one tornado...

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2012-06-27 03:00:36

redOrbit Meteorologist Joshua Kelly Big Story Weather from June 26: Debby was downgraded to a tropical depression yesterday. However, it still kept producing extreme conditions across Northern Florida with heavy rain and surge and stronger winds. The second big event of the day came from the heat that spread across the majority of the Central Plains from the Dakota´s all the way to the Gulf Coast. Big Story Weather Outlook for June 27: The remains of Debby are crossing...

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2012-05-31 03:00:14

RedOrbit Meteorologist Joshua Kelly Big Story Weather from May 29, 2012: Tornado reports extended from North Carolina back into the high plains with Kansas, Oklahoma and Texas getting the majority of the tornadoes. Hail was very large yesterday with reports in Texas of hail the size of 4.5 inches in diameter. The strongest winds came from Paducah, Texas which was also the site of the large hail. This storm that hit Paducah supported a very large high top cumulus-nimbus cloud....

Latest High-pressure area Reference Libraries

Weather Educartion: Impacts Of The Canadian High Pressure Center
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 winter when this system moves in the weather pattern is the same in that the temps will drop and the air...

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 max getting ready to enter the base of the low height center. This will further amplify the low...

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 stations and they are also mostly done on a 24hr basis, however some places will only submit their...

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 as our MB numbers show. A surface pressure map can be very useful to a weather forecaster in many...

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 150mph which keeps the air moving too fast to develop moisture at high levels. The polar front jet...

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