Rainbow at sunset with a small cargo ship in the distance.

Light reflecting off a tropic sea

Sunlight sparkling on a tropic sea

A tropical sunset

Graphic from NOAA's Historical Hurricane Tracks tool shows all hurricanes passing with 65 nautical miles of Cape Hatteras since 1900.

Forecasters from the Storm Prediction Center are issuing new public severe weather outlooks when conditions are favorable for strong and violent tornadoes to occur overnight.

Adrian Colton at the Mauna Loa Observatory shows how early flask samples were filled at the site. Air collected year-round at MLO and eight other remote sites world-wide has been analyzed for the industrial solvent methyl chloroform. Variability in the decay of this chemical helps scientists understand the cleansing power of the global atmosphere and its sensitivity to perturbations.

NOAA engineer Paul Fukumura-Sawada captures air near NOAA's Mauna Loa Observatory in Hawaii, using one of many methods to measure carbon dioxide and other greenhouse gases in Earth's atmosphere. A snow -covered Mauna Kea forms the backdrop for this chilly work.

A new real-time wind and current system installed as part of the Pascagoula- Gulfport Physical Oceanographic Real-Time System (PORTS@)

Climate Reference Network Station at Baker, Nevada.

Surface temperature change graphic indicating North America and the northern hemisphere are becoming warmer.

NOAA Tsunami ready sign. In case of earthquake, go to high ground or inland.

NOAA's Patricia Lang prepares to measure methane levels inside a flask that is part of NOAA's global air sampling network. Such measurements were critical in helping an international team of scientists understand the oxidizing or cleansin g power of the global atmosphere and its sensitivity to natural and human-induce d perturbations. Methane levels were a key point of comparison in the new study.

NOAA's laurel Watts and NASA Dryden's Dennis Pitts install NOAA's Ozone instrument on NASA's Global Hawk.

Atmospheric scientists check out their instruments in a hangar at NASA Dryden Flight Research Center prior to installation aboard one of NASA's two Global Hawk aircrafft for the Global Hawk Pacific environmental science mission.

A wind turbine at the National Wind Technology Center

Tornado damage.

U. S. Climate Reference Network updated April 1, 2008

Wind turbines in corn field

Wind turbines in corn field

Prince township wind farm.

Railroad snow plow used for Great Lakes copper mining.

Calumet Hecla Copper Mining Co. offices with fall foliage

Fall foliage gracing a wooded path

Wind surfing on Lake Michigan

Wind surfing on Lake Michigan

Lake Superior

Maple tree sap collection

Sled dog race, north shore Lake Superior

Glen Haven Beach ice caves

Sunrise over Lake Huron

View over fall foliage to Lake Michigan

Storm surge damage caused by Hurricane Ike - SUV on Bolivar Peninsula

Storm surge damage caused by Hurricane Ike

Storm surge damage caused by Hurricane Ike

Storm surge damage caused by Hurricane Ike

Storm surge damage caused by Hurricane Ike

Storm surge damage caused by Hurricane Ike

Storm surge damage caused by Hurricane Ike

Fog seemingly flowing down the arroyos of Santa Cruz Island.

Aerial view of low clouds over the rugged shoreline of Santa Cruz Island.

San Miguel Island's Cuyler Harbor shrouded in fog.

Aerial view of Santa Cruz Island seen through puffy cumulus.

Aerial view of the high peak of Santa Cruz Island seen through a break in the clouds.

Greensboro upper air alignment field conditions

Greensboro upper air balloon launch facility

Tallahassee upper air balloon launch facility.

Giving new meaning to the East Coast flyway. Aircraft contrails over Chincoteague Island.

Snow falling on a winter evening

Snow falling on a winter evening