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Det får vi inte missa och går till: (subscribe:) http://earthobservatory.nasa.gov/Subscribe/index.php?src=subscribe-foot för abonnemang. Härunder det som kom i natt, och gör att vår dag börjar intressant i stället för att vi ska grämas över snöstormen utanför våra fönster i t.ex. Sundsvall.

 

Felleng formed as a tropical storm over the southern Indian Ocean on January 26, 2013, and strengthened into a cyclone on January 29. That day, the U.S. Navy’s Joint Typhoon Warning Center (JTWC) reported that Felleng was located roughly 420 nautical miles (780 kilometers) north of Réunion Island. The storm had maximum sustained winds of 90 knots (170 kilometers per hour), with gusts up to 110 knots (205 kilometers per hour). Over the next 36 hours, wind speeds were forecast to increase to 115 knots (215 kilometers per hour) with gusts up to 140 knots (260 kilometers per hour).
The Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Aqua satellite captured this natural-color image of Felleng off the east coast of Madagascar on January 29. The JTWC projected storm track showed Felleng moving southward over the Indian Ocean, east of Madagascar and west of Réunion, then veering slightly toward the southeast. Although the center of the storm was expected to remain off Madagascar’s coast, storm clouds could easily extend over the eastern reaches of the island.

1. References

2. Joint Typhoon Warning Center. Accessed January 29, 2013.
3. Unisys Weather. (2013, January 29) Felleng Tracking Information. Accessed January 29, 2013.

NASA image courtesy Jeff Schmaltz, LANCE MODIS Rapid Response. Caption by Michon Scott.

Instrument:

Aqua - MODIS

Snow blanketed most of Great Britain in late January 2013, stretching from London to the northern tip of Scotland. The Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Terra satellite captured this natural-color image on January 26, 2013. Only some coastal areas and the southwestern part of the island were free of snow when MODIS took this picture. Skies had mostly cleared by the time MODIS acquired the image, but some clouds lingered in the west, casting shadows onto the snowy surface below.
On January 25, The Telegraph reported that the death toll from the storm was in the double digits, some of the deaths resulting from hazardous driving conditions. As of that date, more snowfall was expected, including near-blizzard conditions in parts of Scotland. Forecasters called for rain to follow the snow, with as much as 40 millimeters (1.6 inches) of rain in western Britain.

1. References

2. Morris, S. (2013, January 24) Heavy rain and melting snow expected to cause floods. The Guardian. Accessed January 28, 2013.
3. Philipson, A. (2013, January 25) Final heavy snowfall to hit before floods. The Telegraph. Accessed January 28, 2013.

NASA image courtesy Jeff Schmaltz, LANCE MODIS Rapid Response. Caption by Michon Scott.

Instrument: Terra - MODIS

On January 29, 2013, a dust storm blew though northern Mexico. The Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Aqua satellite captured this natural-color image the same day. Dust mingled with clouds over parts of Mexico, New Mexico, and Texas.
The dust was thickest over El Barreal, an impermanent lake in northern Mexico. Fine sediments from that lake bed likely comprised the dust particles in the storm. The winds that stirred the dust apparently affected the surrounding region; the same day that MODIS acquired this image, weather reports from Las Cruces, New Mexico, described gusty winds and hazy conditions caused by blowing dust.

1. References

2. Las Cruces Sun-News. (2013, January 29) Winds batter Las Cruces, gusts reported in excess of 50 mph. Accessed January 31, 2013.

NASA image courtesy Jeff Schmaltz, LANCE MODIS Rapid Response. Caption by Michon Scott.

Instrument:

Aqua - MODIS

 

NASA