North East West Passage: 7 July - day 5
Posted in North East West passage | By Marc |
This Arctic mosaic is composed from several passes of the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Aqua satellite on June 28, 2010. The brightest spot in the image is Greenland, covered in snowy white. West and north of Greenland, sea ice appears pale gray-blue. Clouds, some translucent and some opaque, occur throughout the scene, distinguished from sea ice by their lighter color, rougher texture, and less distinct margins. Clouds appear most prevalent north and west of Scandinavia, and between Alaska and the Russian Federation, but wide expanses of land and sea surface show through cloud-free areas. Most of the Arctic Circle (marked by a faint circle) is cloud-free.
Temperatures in May and June were high, leading to an early onset of melting in June over much of the Arctic. Melting of snow and ice affects Arctic albedo in two ways. First, melt reduces sea ice cover, replacing mostly light-reflecting sea ice with mostly light-absorbing seawater. Second, melt changes dry snow to wet snow. Although it still has a high albedo compared to seawater, wet snow is darker than dry snow and consequently can absorb three times the solar energy.
The high-resolution version of this image has a resolution of 2 kilometers. (click on the image to see the details)
(c) Image and text from NASA Earth Observatory
Weather Forecast North East West passage -5 July- day 4
Today: 07 July
Position: Tromso N69.664/E18.987
Weather: very cloudy with some rain showers, during the afternoon sunny spells.
Wind: 210-230°5-10kt (=3-5m/s), after 12utc becoming less than 5kt (3m/s). After 18/21utc again increasing to 8-13kt (4-7m/s) and turning from SE to SW.
Tomorrow: 08 July
Position: Tromso N69.664/E18.987
Weather: variable cloudiness with some sunny spells, during after moderate rain showers develop.
Wind: 250-270°5-10kt (3-5m/s), after 15utc N 2-7kt (1-3m/s).
Outlook for Friday (09/07) (conditions still at Tromso)
Wind: in general SSW to SW 5-10kt (3-5m/s). Weather sunny with convective clouds, resulting in showers.
Remark
This forecast is made for Tromso and environment. Looks like a rather big system will hit the northern coast of Norway on Saturday.