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Big Story Weather – September 4, 2012

Sep 04, 12 Big Story Weather – September 4, 2012

Big Story Weather from September 3: The heat returned to the Southern Plains as many places were near 100 with heat index values over 105. Severe weather reports from yesterday included large hail in South Dakota and also in Central Kansas. Multiple damaging wind reports occurred from Mississippi to Alabama and part of Georgia. Another pocket of damaging winds occurred in the Carolina’s. A third area was found back in Kansas and Missouri.

Big Story Weather Outlook for September 4: Frontal boundary extending across the East Coast will bring showers and storms to many places along the coast such as Boston where the high temps will be in the mid 70’s. Afternoon thunderstorms will flare along the Gulf Coast for places like Mobile where temps will reach the upper 80’s to lower 90’s. High pressure will impact the weather for the middle of the United States for places such as Omaha where the high temps will be in the lower 90’s. High pressure will keep conditions dry for the west also today such as places like Boise and Portland.

Big Story Weather International Outlook: High pressure will bring partly cloudy skies to Japan and a weak upper level system will bring clouds and showers to the Korean peninsula. The monsoonal trough will impact Southeastern Asia. High pressure building in over Western Europe will bring partly cloudy skies to the region. A frontal boundary extending through England will bring showers to the area. A frontal boundary extending through the tip of South America will bring showers to the region along with gusty winds. Low pressure over South Central Australia will bring an increase in cloud cover to the region, while high pressure over the western portion will bring partly cloudy skies to the area of Perth.

Big Story Weather Tropical Update:

Atlantic Basin: Tropical Storm Leslie continues turning in the Atlantic and is slowly headed towards the North and is forecasted to intensify to a hurricane within the next couple of days as it moves towards Bermuda. This morning winds are estimated to be around 55kts with a pressure of 994mb. Also Tropical Depression 13L has formed and is forecasted to slightly strengthen as it remains over the Atlantic as winds are estimated around 30kts with a pressure center of 1012mb.

Eastern Pacific: Tropical Depression John continues to move northward over colder waters and will continue to weaken as estimated pressure is near 1004mb with winds around 30kts.

ENSO Watch: We remain in the neutral phase of the cycle, however waters in the Tropical Pacific are still showing signs of warming indicating that EL-Nino could be on setting this month or early next month we will have to continue to watch these conditions as they will play a major impact in the United States winter weather patterns along with other places around the globe.

Climate Watch for the period of August 30 – September 3: A push of cooler air has moved in along the Pacific Northwest as temps drop below average.

Boston MA: The region started about 6 degrees above average and warmed to 13 degrees above average on the 31st. The first temps dropped to only 3 above average followed by a cool down as temps are now running 4 degrees below average.

Mobile AL: Temps started 3-6 degrees below normal, followed by a small warm up as temps are now about 1-3 degrees above average.

Omaha NE: The heat has been stuck in this region as temps were running 12-16 degrees above normal followed by a slight drop to temps running 4-11 degrees above average.

Boise ID: Temps started about 3 degrees above average followed by temps returning to average and then a slight warming as temps are now 2-4 degrees above average.

Portland OR: The cooler air is in place as temps have been running about 1-4 degrees below average for the majority of the period.

Major Weather Impacts Discussion for Sep 4, 2012:

Day 1-3: The frontal boundary along the east coast will keep showers and storms in the region along with cooler temps, the heat will be stuck in the Midwest and plains region today along with a cooler air mass in place over the Pacific Northwest.

Day 4-7: Look for the monsoonal rains to return to the Southwest. Lingering showers and storms will be found along the East Coast.

Day 8-12: At the time Hurricane Leslie will begin to approach Bermuda and start to raise the seas along the East Coast.

Day 13-15: A weak area of low pressure will move up along the East Coast bringing rain to places like New York and Boston and also Leslie will make landfall in Southeastern Canada. The potential for another Tropical system to begin approaching the Gulf of Mexico.

Image Credit: Photos.com

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