Earth & Space Weather

~ Space Weather Update~ Comet Ison In Trouble?

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Submitted by Lia on

NIGHT-SHINING CLOUDS REAPPEAR OVER ANTARCTICA: The southern season for noctilucent clouds (NLCs) is underway. NASA's AIM spacecraft detected the first wispy tendrils of NLCs over Antarctica on Nov. 21st and since then the electric-blue clouds have spread and brightened. Scroll down the page and look left for latest images.

IS COMET ISON IN TROUBLE? Astronomers using the IRAM millimeter telescope in Spain are reporting a sharp change in Comet ISON. "We observe consistent, rapid fading of the molecular emission lines between Nov. 21 and Nov. 25 by at least a factor of 20. This may indicate that the nucleus is now at best marginally active or that... it no longer exists," says Michal Drahus of Caltech.

It's too soon to panic, though. First, click on the image to watch a new movie from NASA's STEREO-A spacecraft (31 MB), then scroll down for continued discussion:


Credits: This movie was made by reader Rob Matson using data from STEREO-A.

Winter Storm Boreas Update: 14 Deaths as Storm Marches East with Snow, Ice, Rain

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By: weather.com and Associated Press, 11/26/2013

The massive Winter Storm Boreas, already blamed for at least fourteen deaths, is trekking east today and spreading its travel misery with a mix of dangerous snow, sleet, ice, and heavy rain. This morning, the worst of the storm is in the Appalachians and interior Northeast. By Wednesday, Boreas will impact the entire East Coast, creating havoc on the roads and in the air on the busiest travel day of the year.

 

"This morning, I'm really concerned about parts of Virginia and North Carolina and the Roanoke, Virginia area in particular," said The Weather Channel's winter weather expert Tom Niziol. "That area is getting a glaze of ice with reports of ice on I-81. That will continue for a few hours as temperatures stay below freezing but by noon that will change over to rain and it will be heavy!"

 

For more information visit www.wunderground.com

Lightning starts three fires near Narrabri

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ABC, By: Catherine Clifford, 11/26/2013

The Rural Fire Service says three fires broke out near Narrabri on Monday despite some good recent rain. RFS Deputy Incident Controller, Brett Loughlin, says the blazes started within a 30km radius of Narrabri. He says one was in the Bobbiwa National Park, another on Pikes Lane and the third was on a private property.

 

Brett Loughlin says lightning was a factor in all three and significant resources were deployed. "Some 12 fire trucks, two helicopters and a fixed-wing water-bomber were responded to one fire and thanks to co-ordinated efforts crews were able to bring that fire under control without it posing any threat to property," he said. "However, an area of about 25 hectares was burned out."

 

For more information visit www.weatherzone.com.au

Record November rain for Tasmania

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Weatherzone, By: James Casey, 11/26/2013

The East Coast of Tasmania has been saturated during November, with records being broken in some places. Bicheno has recorded 228mm of rain so far during November, more than four times the average and the wettest on record. Elsewhere, Friendly Beach and St Helens have also been soaked this month with 226mm and 214mm respectively, the heaviest November falls in over a decade. Further south in Hobart, almost double the average November rainfall has been recorded with 80mm for the month.

 

The above average November rainfall was caused by a couple of ideally placed low pressure systems around the 12th to 14th and the 21st to 24th of the month. These low pressure systems were situated in such a way that they directed moist onshore winds and heavy rain onto the east coast of the state for a number of days.

 

For more information visit www.weatherzone.com.au

“LEHAR” upgraded to Cyclone status — Heading towards India (strengthens)

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By: sincedutch, 11/25/2013

lehar nov 25 screenshot

Now, upgraded to a Category 1 Cyclone, forecast to develop at least into a Category 2 (as of 4pm CT Nov. 25, 2013).  Cyclone “LEHAR” is currently showing a stronger / brighter center than the previous Super Cyclone “PHAILIN”, when it formed, however the eye of “LEHAR” is not yet developed enough to be seen through yet.

 

For more information visit http://sincedutch.wordpress.com/2013/11/25/11252013-lehar-upgraded-to-cyclone-status-heading-towards-india-strengthens/

Earthquake Report for 11/25/2013

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By: USGS

www.earthquake.usgs.gov/earthquakes/

31 earthquakes

 

    3.3 38km SE of Redoubt Volcano, Alaska 2013-11-25 17:46:10 UTC-05:00 100.0 km

    3.0 18km NNE of West Yellowstone, Montana 2013-11-25 16:10:55 UTC-05:00 10.6 km

    5.5 42km NE of Quilmana, Peru 2013-11-25 15:06:55 UTC-05:00 74.0 km

    4.7 73km S of Nishinoomote, Japan 2013-11-25 11:38:49 UTC-05:00 38.0 km

    5.0 56km ENE of Ishinomaki, Japan 2013-11-25 10:43:02 UTC-05:00 54.8 km

    2.9 203km SE of Unalaska, Alaska 2013-11-25 10:14:36 UTC-05:00 33.4 km

    2.7 6km S of Volcano, Hawaii 2013-11-25 09:37:43 UTC-05:00 31.7 km

    3.2 100km N of Culebra, Puerto Rico 2013-11-25 09:13:56 UTC-05:00 53.0 km

    4.5 42km N of Calama, Chile 2013-11-25 09:11:16 UTC-05:00 100.7 km

Winter Storm Boreas Update: Ice, Snow Create Dangerous Travel for Millions in Plains, Midwest

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By: Weather.com and Associated Press, 11/25/2013

The National Weather Service said late Sunday night that a winter storm warning for most of North Texas had been replaced with a winter weather advisory through noon Monday. A mix of rain, light freezing rain and light sleet was expected, but meteorologist Steve Fano with the weather service's Dallas-Fort Worth office said the temperatures would not be as cold as initially forecast. "They will still go below freezing in some places, just not as much below freezing as we initially thought," Fano said.

 

For more on this story visit www.wunderground.com

Cyclone Helen Strikes India, At Least 6 Dead

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Wunderground.com - 24 November, 2013

Indian men cut an uprooted tree from Cyclone Helen to clear a road in West Godavari district in Indian southern state of Andhra Pradesh, India. The cyclone knocked out power to hundreds of villages in southern India and killed several people Friday.

 

HYDERABAD, India — A cyclone killed at least six people and knocked out power to hundreds of villages in southern India on Friday.

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