National Oceanic And Atmospheric Administration

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This NOAA satellite image, taken Aug. 6, 2012 at 1:45 a.m. EDT, shows cloud cover ahead of a cold front that extends from the Lower Great Lakes to the Lower Mississippi Valley. (Associated Press/Weather Underground)

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This NOAA satellite image taken on Saturday, June 23, 2012, shows shower and thunderstorm activity developing around an area of low pressure spinning in the Gulf of Mexico. (AP Photo/National Oceanic and Atmospheric Administration)

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This NOAA satellite image taken Saturday, May 26, 2012, at 1:45 a.m. EDT shows shows clouds off the Carolina Coast associated with Subtropical Storm Beryl. (AP PHOTO/WEATHER UNDERGROUND)

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A National Oceanic and Atmospheric Administration satellite image taken Saturday, May 19, 2012, shows Tropical Storm Alberto 140 miles east of Charleston, S.C. (AP Photo/Weather Underground)

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Facial images based on forensic reconstruction of skeletal remains of two sailors aboard the USS Monitor, a CIvil War-era ironclad ship that sank in 1862, have prompted one federal agency to ask the public: do you know these men? (Images from NOAA)

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Facial images based on forensic reconstruction of skeletal remains of two sailors aboard the USS Monitor, a CIvil War-era ironclad ship that sank in 1862, have prompted one federal agency to ask the public: do you know these men? (Images from NOAA)

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This NOAA satellite image taken March 2, 2012, at 12:45 a.m. EST shows variable cloud cover over the Midwest as a storm system organizes over the Central and Southern Plains and a cold front drops into the Upper Midwest. (Associated Press/Weather Underground)

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A NOAA satellite image taken on Monday, Jan. 23, 2012, at 12:45 a.m. EST shows widespread cloud cover as a strong low-pressure system moves through the mid-Mississippi and western Ohio valleys. (AP Photo/Weather Underground)

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A National Oceanic and Atmospheric Administration satellite image taken on Monday, Dec. 19, 2011, at 12:45 a.m. EST shows cloud cover over the Southwest as low pressure over the region kicks up a mix of rain, freezing rain and snow. (AP Photo/Weather Underground)

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This image from the NOAA-19 satellite's AVHRR sensor shows the strong storm bearing down on western Alaska in this infrared imagery on Wednesday, Nov. 9, 2011, at 5 a.m. EST. (AP Photo/National Oceanic and Atmospheric Administration)

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This NOAA satellite image taken on Sept. 9, 2011, at 01:45 a.m. EDT shows Hurricane Katia located about 360 miles northwest of Bermuda. (Associated Press/Weather Underground)

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This NOAA satellite image taken on Saturday, Sept. 4, 2011, at 2 a.m. EDT shows Tropical Storm Katia, which increased to hurricane strength on Sunday, at center right. Tropical Storm Lee is seen off the U.S. Gulf Coast at center left in the photo. (AP Photo/Weather Underground)

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In an image provided by the National Oceanic and Atmospheric Administration and made by the GOES East satellite, Hurricane Irene moves over the Bahamas on Thursday, Aug. 25, 2011. (AP Photo/NOAA)

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An image released by the National Oceanic and Atmospheric Administration made from the GEOS East satellite shows Hurricane Irene on Wednesday, Aug. 24, 2011, as it moves northwest from the Dominican Republic. (AP Photo/NOAA)

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An image released by the National Oceanic and Atmospheric Administration and made from the GEOS East satellite shows Hurricane Irene on Tuesday, Aug. 23, 2011, as it passes over Puerto Rico and the Dominican Republic. The storm is on a track that could see it reach the Southeast coast of the United States as a major storm by the end of the week. (AP Photo/NOAA)

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This image provided by the National Oceanic and Atmospheric Administration and taken at 6:45 a.m. EDT on Monday, Aug. 22, 2011, shows Hurricane Irene (center right) positioned approximately 55 miles west-northwest of San Juan, Puerto Rico. (AP Photo/NOAA)