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Sunglint on Bays of USA’s East Coast

35.3N 75.8W

May 18th, 2013 Category: Climate Change

USA – May 10th, 2013

Sunglint reflecting off the Atlantic Ocean highlights the contours of bays along the East Coast of the United States of America: Chesapeake Bay, Albemarle Sound and Pamlico Sound (from top to bottom).

The Albemarle-Pamlico Estuarine System is one of the largest and most important in the United States. Covering approximately 7,530 square kilometers (2,900 square miles), the waters of the system comprise the second largest estuarine system on the East Coast of the United States, exceeded in area by only the Chesapeake Bay.

The Albemarle-Pamlico Estuarine System is comprised of an extensive complex of creeks, rivers, swamps, marshes, and open water sounds dominating northeastern North Carolina. Tributaries originating in the mountains and piedmont serve as conduits from a major portion of North Carolina and southern Virginia. Albemarle Sound is the
drowned portion of the Roanoke River and its extensive floodplain.

The Coastal Plain of the Albemarle-Pamlico Region is widely recognized as among the USA’s most vulnerable landscapes to relative sea level rise and associated climate phenomena. The indicators “ambient air temperature,” “storm frequency and intensity,” and “relative sea level rise” all offer insights into the influence of climate stressors on the Albemarle-Pamlico ecosystem (click here for more information).

High Destructive Potential of Hurricane Sandy (18L), Eastern USA – October 29th, 2012

34.8N 77W

October 29th, 2012 Category: Image of the day, Tropical Cyclones

Hurricane Sandy (18L) – October 28th, 2012

Enhanced image

Track of Hurricane Sandy (18L) - October 28th, 2012 © Univ. of Wisconsin

Track of TS 18L

As of 5 p.m. EDT (2100 UTC) October 28, Hurricane Sandy is located within 20 nautical miles of 32.4°N 71.3°W, about 270 mi (435 km) east-southeast of Cape Hatteras, North Carolina and about 530 mi (850 km) south-southeast of New York City.

Maximum sustained winds are 65 knots (75 mph, 120 km/h), with stronger gusts. Minimum central pressure is 952 mbar (hPa; 28.11 InHg), and the system is moving northeast at 13 kt (15 mph, 24 km/h). Hurricane force winds extend up to 175 miles (280 km) from the center of Sandy, and tropical storm force winds up to 520 miles (835 km) from the center.

According to the Weather Channel, Hurricane Sandy appears destined to enter the history books as one of the most exceptional and potentially destructive storms to strike the Northeast in modern history.

Sandy, in terms of geographic size, is already the largest Atlantic hurricane of the past quarter-century. In a sign of how extraordinarily large Sandy is, a tropical storm warning is also in effect for Bermuda, while lakeshore flood warnings have been hoisted on parts of the Great Lakes including Chicago. The full extent of the storm is best observed in the full image.

Sandy has stayed close to the borderline between high-end tropical storm and low-end hurricane status, despite an impressively low central pressure. But despite the absence of sustained triple-digit winds, the huge breadth of Sandy’s circulation promises widespread disruption to life for tens of millions of Americans.

Sandy will produce its greatest impacts in the Northeast and the Mid-Atlantic Monday into Tuesday. A huge area of strong winds is blowing water toward the U.S. mainland. Already by Sunday evening, tides in some locations were 2 to 4 feet above normal from the Outer Banks of North Carolina north to eastern Long Island.

Sandy’s rain bands and gusty winds continue to expand across the Northeast. The heaviest rain was focused on the Mid-Atlantic as of late Sunday evening. Winds were gusting in excess of 40 mph in several locations along the Mid-Atlantic and Northeast coastline.

Numerous high wind warnings have been issued across the Northeast for Monday and Tuesday, along with a slew of flood watches and warnings both for storm-surge flooding at the coast and freshwater flooding from rainfall inland. Blizzard warnings have even been posted for the mountains of West Virginia. Tropical storm warnings are in effect for parts of the North Carolina coast. In addition, the National Hurricane Center is forecasting hurricane-force winds from the Maryland/Virginia border to Cape Cod.

Life-threatening storm surge flooding of over 10 feet will be possible in Long Island Sound, and surge up to 6 feet above ground level is expected for parts of coastal North Carolina if peak surge occurs at high tide. Many other East Coast locations can expect dangerous storm surge.

Bays and Cities Along USA’s East Coast

40.2N 74.7W

October 25th, 2012 Category: Sediments

USA – October 22nd, 2012

Several important cities and state capitals can be seen as grey areas along the east coast of the United States of America. From upper right to lower left we can observe New York City, Newark, Trenton, Philadelphia, Baltimore and Washington, D.C. Sediments can be observed in Delaware Bay (between southern New Jersey and Delaware, near the image center), though fewer are visible in Chesapeake Bay (southwest of the former).

View of Hurricane Irene (09L) Making Landfall Over Eastern USA and Canada – August 31st, 2011

37.7N 77.1W

August 31st, 2011 Category: Image of the day, Tropical Cyclones

Hurricane Irene (09L) - August 27th, 2011

Enhanced image

Hurricane Irene (09L) left extensive flood and wind damage along its path through the Caribbean, the east coast of the USA and as far north as Canada.

These images show the system on August 27, as it was approaching the Outer Banks of North Carolina and had weakened to a Category 1 hurricane. At 7:30 am EDT (11:30 UTC) the same day, Irene made landfall near Cape Lookout, on North Carolina’s Outer Banks, with winds of 85 mph (140 km/h).

After having tracked over land for about 10 hours, the eye of Irene became cloud-filled, although the center remained well-defined on radar images. Later on August 27, Irene re-emerged into the Atlantic near the southern end of the Chesapeake Bay in Virginia.

Shortly before sunrise, at about 09:35 UTC on August 28, Irene made a second landfall at the Little Egg Inlet on the New Jersey shore,[32] and soon after moved over water again. Hours later, Irene weakened to a tropical storm just as it made a third U.S. landfall in the Coney Island area of Brooklyn, in New York City, New York, about 9:00 am EDT (13:00 UTC) on August 28.[citation needed]

Following its August 28 New York landfall, Irene moved northeast over New England, becoming post-tropical over the state of Maine at 11:00 pm EDT (03:00 UTC August 29).  The extratropical cyclone continued northward into eastern Quebec, Canada, then crossed the St. Lawrence River into Labrador before emerging into the Labrador Sea, late on August 29.

Earthquake Centered in Virginia Rocks US East Coast

38.0N 77.9W

August 23rd, 2011 Category: Earthquakes, Fires

USA and Canada - August 15th, 2011

The East Coast of the USA was rocked by a 5.9 magnitude earthquake Tuesday, shaking buildings in many cities, delaying flights and trains and sending thousands of frightened workers into the streets, although there have been no reports of major damage or injuries

The earthquake was centered in about 4 miles southwest of Mineral, Virginia, near Richmond, Virginia, and about 80 miles south of Washington, D.C. Its effects were strongest in the Mid-Atlantic region, although it was felt from as far north as Ottawa, Canada, to North Carolina, in southern USA. This image shows part of the eastern seaboard, including most of Virginia.

The U.S. Geological Survey reported that at the epicenter, the quake had a very shallow depth of 0.6 mile. It hit at about 1:51 p.m. ET and lasted 45 seconds, according to the U.S. Geological Survey. The USGS has warned of the possibility of aftershocks.

Earthquakes of magnitude 5.5 to 6 can cause damage to buildings and other structures, especially if shallow. The U.S. East Coast does not normally feel quakes of this strength. However, the shallower a quake is, the more intense it is felt on the surface, and the potential for damage is greater.

Also visible in this image of some of the areas affected by the earthquake is a fire burning in the Great Dismal Swamp in Virginia (visible in full image). The blaze has been burning since the 4th of August.

 

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