Iceberg B-10A observed from NOAA-14 polar orbiting satellite.

Iceberg B-15A has broken into two pieces east-northeast of Ross Island in the Ross Sea.

Ship trails and lee vortices south of Guadalupe Island in stable marine layer.

Stable marine layer in northwesterly flow encountering Guadalupe Island generates lee vortices.

Light blue and green waters off the coast of Namibia indicate phytoplankton bloom.

Blue-green swirls in water north of South Georgia Island indicate phytoplankton bloom. Very large icebergs are also visible in this image that have drifted north from Antarctica.

Ash cloud from Mount Pinatubo eruption approximately 300 miles in diameter.

Snow cover over the United States as indicated by white arrows.

Snow cover over the Midwest and Eastern U.S. as well as bands of lake effect snow streaming off the Great Lakes.

A strong cold front races eastward bringing windy conditions, thunderstorms, and sharply colder temperatures (30 to 40 degrees colder) temperatures to the eastern United States.

Large severe thunderstorms over Iowa, Illinois, and Indiana.

Large thunderstorms over eastern Kansas and Missouri.

A strong storm with wind gusts of 70mph, rain and snow in higher elevations slams the Pacific coast on New Year's Day.

A plume of moisture associated with the jet stream hits the West Coast with winds up to 60 knots ( 69mph). A second storm approaches from the west.

The operational polar-orbiting microwave composite of total moisture in the atmosphere.

A large fall storm hits the Pacific Northwest with winds up to 55 knots.

A powerful Pacific storm spreading rain, snow and heavy winds into the Pacific Northwest. NOAA-14 image.

A Pacific Northwest storm spreading rain and snow over coastal regions from Washington to California. GOES-10 image.

Another storm moves into the Pacific Northwest with snow, wind, and rain. GOES-10 image.

Another storm moves into the Pacific Northwest with snow, wind, and rain. GOES-10 image.

Huge supercell thunderstorms extending from northeast Nebraska into central Minnesota. Several tornadoes were spawned in Minnesota from this storm system. NOAA-14 imagery.

Severe thunderstorms along a frontal system in the Midwest were producing large hail, strong winds, and rain at the time of the image. GOES-8 image.

Large thunderstorms occurring from New Mexico to western Florida. GOES-12 image.

Thunderstorms occurring along a front extending from Missouri to New York; in the Carolinas, and in Arkansas. NOAA-14 image.

A line of severe thunderstorms which generated tornadoes killing 33 and injuring over 100. Tennessee, Alabama, and Ohio were hardest hit with deadly tornadoes. NOAA-16 image.

Hurricane Mitch with a central pressure of 906 mb and sustained winds of 195 mph . A Category 5 hurricane. GOES-8 image.

Hurricane Mitch with a central pressure of 917 mb and sustained winds of 180 mph . A Category 5 hurricane. NOAA-15 image.

Dense fog in Texas coastal area and in the upper Mississippi Valley. Snow cover in the Midwest and Mid-Atlantic states. GOES-8 image.

Morning fog in river valleys in Pennsylvania and New York. NOAA-15 image.

Low clouds and fog blanket the East Coast on one of the busiest travel days of the year causing multiple automobile accidents. NOAA-15 image.

Severe thunderstorms over northern Louisiana, Arkansas, and southeast Missouri. Smoke plumes from forest fires in Ontario, Canada, are evident north of Lake Superior. GOES-8 image.

A western hemisphere image from a GOES satellite.

Ash plume emanating from Mount Etna during a period of eruptive activity.

Heat signature from lava flow and ash plume extending downwind from Mt. Etna eruption. NASA MODIS image processed by NOAA.

Heat signature from lava flow and ash plume extending downwind from Mt. Etna eruption. NOAA-15 image.

NOAA-16 image of Mt. Etna eruption and Eumetsat Meteosat image of same. Total Ozone Mapping Spectrometer (TOMS) indicates a high level of aerosols in the ash plume.

Hurricane Gilbert approaching the Yucatan Peninsula. NOAA-10 image.

Hurricane Gilbert in the Caribbean Sea.

Hurricane Gilbert south of Cuba when at 885 mb (26.13 in.) low. A record barometric low for the western hemisphere. GOES-7 image.

Hurricane Gilbert south of Cuba when at 885 mb (26.13 in.) low. A record barometric low for the western hemisphere. Peak wind speed of 173 knots (almos t 200 mph). GOES-7 image.

Hurricane Gilbert after passing into the Gulf of Mexico. Dates show location of Gilbert every day at 2100 UTC. GOES-7 image.

Gilbert as Tropical Depression 12 in early stages of development.

Infrared image of Hurricane Gilbert while at peak intensity. GOES-7 image.

Infrared image of Hurricane Gilbert approaching Jamaica. GOES -7 image.

Infrared image of Hurricane Gilbert while at peak intensity. GOES-7 image. Same image as spac0399 but different coloring.

Infrared image of Hurricane Gilbert while at peak intensity. GOES-7 image. Same image as spac0399 but showing all cloud as white giving illusion of visible image.

Probably Hurricane Gilbert in the Gulf of Mexico west of the Yucatan Peninsula. No identification on slide.

Probably Hurricane Gilbert in the Gulf of Mexico west of the Yucatan Peninsula.

Hurricane Andrew making landfall south of Miami.

Hurricane Hugo approaching the South Carolina coast.