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Latest Low-pressure area Stories

Hidden Cycles Of Sea Winds To Be Revealed By NASA's RapidScat
2014-07-08 03:19:00

NASA's Jet Propulsion Laboratory Ocean waves, the hot sun, sea breezes -- the right combination makes a great day at the beach. A different combination makes a killer hurricane. The complex interactions of the ocean and the air above it that can create such different outcomes are not yet fully known. Scientists would especially like to understand the role that the daily heat of the sun plays in creating winds. In a few months, NASA will send an ocean wind-monitoring instrument to a...

2014-06-23 13:20:37

University of Exeter New study shows drought, heat waves and cold spells linked to air flow changes Variations in high-altitude wind patterns expose particular parts of Europe, Asia and the US to different extreme weather conditions, a new study has shown. Changes to air flow patterns around the Northern Hemisphere are a major influence on prolonged bouts of unseasonal weather – whether it be hot, cold, wet or dry. The high altitude winds normally blow from west to east around...

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2014-01-17 03:30:24

redOrbit Meteorologist Joshua Kelly Weather Forecast for January 17, 2014 11AM: Low pressure moving through the Great Lakes will bring some light snowfall and increasing winds to the region. High pressure will dominate the weather from the Gulf Coast to the Southwest. A secondary high pressure will dominate the Western US with partly cloudy skies. 11PM: Another clipper system will slide into the Northern Plains this evening bringing another round of wind and snow to the region. High...

2014-01-16 14:12:54

The intensity of tropical cyclones hitting East Asia has significantly increased over the past 30 years, according to a new study published today. The coastlines of China, Korea and Japan in particular have experienced increasingly stronger cyclones, which the researchers have attributed to increasing sea surface temperatures and a change in atmospheric circulation patterns over the coastal seas. According to the study, the changes in sea surface temperature and wind flows meant that...

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2014-01-14 03:30:10

redOrbit Meteorologist Joshua Kelly Weather Forecast for January 14, 2014 11AM: Low pressure moving through the Northern Plains will head into the Great Lakes this afternoon. This will bring light snowfall from the Dakotas to the Great Lakes. There will be showers ahead of the cold front from Ohio back into Missouri. High pressure will dominate the weather from the Southern Plains and Gulf Coast back into the West. 11PM: Overnight low pressure will push into Michigan bringing a wide...

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2013-12-26 03:30:55

redOrbit Meteorologist Joshua Kelly Big Story Weather from December 25: A few snow showers moved across the Great Lakes and extreme Northeast during the day, yesterday. Colder air pushed into the Southern Plains, Gulf Coast and Southeast behind the frontal boundary, while warmer air surged northward into the Rockies and portions of the Plains ahead of the next clipper system. Big Story Weather Discussion for December 26: Surface Map 11AM: High pressure settling in over the...

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2013-12-24 03:30:15

redOrbit Meteorologist Joshua Kelly Big Story Weather from December 23: Another cold night across many parts of the US from the Northern Plains into the Gulf Coast. Showers continued along the East Coast but cleared out late last night. Temps fell to around -20F along with wind chill values near -40F over portions of the Northern Plains. Big Story Weather Discussion for December 24: Surface Map 11AM: High pressure over the Tennessee River Valley will make for another cold...

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2013-12-23 03:30:14

redOrbit Meteorologist Joshua Kelly Big Story Weather from December 20-22: A very active weekend was seen across a good portion of the country. Heavy rainfall was found from the Ohio River Valley to Gulf Coast with some places seeing between 4-9 inches. Heavy snowfall was seen over portions of the Western Lakes with some place seeing 3-7 inches. Record setting warmth hit the Gulf Coast with places pushing near 80F, while cold weather hit over the Northern Rockies and Plains with places...

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2013-12-20 04:00:11

redOrbit Meteorologist Joshua Kelly Big Story Weather from December 19: A powerful storm system developed over the Rockies and left a good swath of snowfall over the Dakotas along with very cold temps that were well below zero overnight. Big Story Weather Discussion for December 20: Surface Map 11AM: Low pressure pushing into the Great Lakes is going to be the focus of a wide array of weather today. Snow showers will extend from Maine through Southeast Canada and back into...

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2013-12-19 04:00:40

redOrbit Meteorologist Joshua Kelly Big Story Weather from December 18: Significant snow fell over the Rockies yesterday with some places getting over 6 inches. Cold air settled in over the Southeast US as frost and freeze watches/warnings were posted for parts of Florida and Georgia. Big Story Weather Discussion for December 19: Surface Map 11AM: High pressure pushing off the East Coast will bring another nice day to most of the Eastern US, while the next storm system...


Latest Low-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...

Polar Watch For Aug 29- Sept 4
2012-09-05 08:00:17

A look at the temps from the 4th show that another colder pocket of air is moving into the region. Aug 29: The max temps warmed to 1C, while the overnight lows dropped to 0C. Aug 30: A burst of colder air was over the polar cap as high temps only made it to -3C, and the overnight lows dropped to -6C. Aug 31: Brought a touch of warmer air back into the region as high temps rose back to 1C, while the overnight lows hit -2C. September 1: High temps again rose to 1C, while overnight lows...

Weather Pack For September 6, 2012
2012-09-06 08:00:38

Today on Weather Pack we are going to examine the surface wind around a mature low pressure system, which means that the low pressure has an occluded front associated with it. Yellow Star: The forecasted surface winds would be out of the Northwest as the flow behind the low is counter-clockwise. Green Star: Anyone that is forecasting for the green star would be looking at the winds coming from the South-Southeast just right ahead of the warm front of the low pressure system. Red...

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...

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Word of the Day
siliqua
  • A Roman unit of weight, 1⁄1728 of a pound.
  • A weight of four grains used in weighing gold and precious stones; a carat.
  • In anatomy, a formation suggesting a husk or pod.
  • The lowest unit in the Roman coinage, the twenty-fourth part of a solidus.
  • A coin of base silver of the Gothic and Lombard kings of Italy.
'Siliqua' comes from a Latin word meaning 'a pod.'
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