Polar Maritime

It will still be cold Gav, not as cold but still cold. Look at the surface temps for the 9th...

Hopefully we will see some snow by the end of the week, when winds turn to a much colder Northerly.

Yes a much cleaner Northerly this morning.. -11 -12 850's into the the Midlands, And heavy snow showers over the Pennines and down to lower levels will make it feel bitter adding on the wind chill. Not a bad start to Winter !

Looks like ison has a bad case of sunstroke...

COMET ISON LIVES: Cancel the funeral. Comet ISON is back from the dead. On Nov. 28th, Comet ISON flew through the sun's atmosphere and appeared to disintegrate before the cameras of several NASA and ESA spacecraft. This prompted reports of the comet's demise. Hours later the comet revived, sprouted two tails and rapidly brightened. It is now receding from the sun with a fair chance of becoming a photographic object in the morning sky as early as Dec. 1st or 2nd. A new coronagraph movie from SOHO documents the flyby (updated Nov. 30 @ 00:09 UT http://www.spaceweather.com

Comet Ison has survived ! http://www.youtube.com/watch?v=Swly4IlkW4g Hopefully some spectacular sights over the next few weeks. We all thought it was was done. After some new analysis comet experts are feeling confident that there is at least a small nucleus intact. Their initial analysis indicates that it is still behaving like a comet. An extremely exciting turn of events.

A warm wellcome back to the forum OMM.

Yes WH, and an important 12 hours at that ! Fingers crossed...

Updated image by LASCO C3 showing a much brighter Comet ISON as it continues to travel closer to the sun. The comet remains intact.

http://www.youtube.com/watch?v=2bbHRPKVecE

Lot's of PM shots showing on the GFS and snow for the whole of the UK by the 5th and continuing for a few days into FI, A good start to Winter showing this morning.

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 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. The movie spans a 3+ day interval from Nov. 21 (00:09 UT) to Nov. 24 (08:09 UT), which overlaps the period when IRAM recorded the fading emission lines. Zoom your movie-player to full screen: Although "puffs" of material can be seen billowing down the comet's tail, the comet itself still appears to be intact. Astronomer Karl Battams of NASA's Comet ISON Observing Campaign comments: "[The fading emission lines] could indicate that the nucleus has completely disrupted, releasing an enormous volume of dust while significantly reducing emission rates. Fragmentation or disruption of the nucleus has always been the highest risk factor for this comet so if this has indeed happened then while unfortunate, it would not be a surprise." "However," he continues, "these reports are new, and while they are undoubtedly valid, we do still need to keep observing the comet to be sure what it happening. Remember: Comet ISON is a dynamically new sungrazing comet, fresh in from the Oort Cloud, and the last time we saw an object like this was never! Furthermore, a sungrazing comet just three days from perihelion has never been studied in this kind of detail - we're breaking new ground! When we factor in your standard 'comets are unpredictable' disclaimer, what we have is a huge recipe for the unknown." http://www.spaceweather.com/

Yes 4, that is one of the main factors which aid them, but not exclusively.

A handy link here.... http://www.solarsystemscope.com/ison/

A cold dry night with clear intervals and a widespread ground frost. An overnight low of -0.6c. Currently; Dry with patchy cloud. Temp -0.1c Dp -2.0c Wind Chill 0.2c Wind West 1mph Rain since midnight 0.0mm

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. http://www.spaceweather.com/

A dry night with long clear periods leading to a widespread ground frost. Everywhere looks lovely and white this morning, an overnight low of -2.8c. Currently; Light winds with patchy cloud. Temp -1.5c Dp -3.2c Wind Chill -1.7c Wind S/W 1mph Rain since midnight 0.0mm

Morning Karl, Yes something is certainly starting to brew for the start of December, Matthugo over on the stratty thread has said the latest ECM32 continues showing high pressure over Greenland although week at this point, and with a slight warming of the stratt forecast to... Also the GFS has been toying with this idea of the vortex trying to split over the last few days.

What load of crap.. Where on Earth have they got this from ! This winter has so far shown signs of delivering a repeat of 1962 when temperatures tumbled in mid-November and the first snow fell. Southern England was hit by blizzards and London was buried under 12 inches of drifting snow with further downpours in January and February (Source: Netweather). It's not even winter yet...

Comet ISON is now visible in the latest STEREO Ahead HI1 imagery.

It could be "IF" it happens. Certainly something the models have been toying with at that range.Yes nothing zonal in the models once again with temps staying below average. A nice crisp sunny weekend coming up, perfect for the great outdoors !

Yes the rain/sleet only turned moderate at times, nothing heavy enough for evaperative cooling to take place. Once again this just shows what a little more elevation and a few miles can make localy round here from one hill to another in these types of set-ups.

No snow here TM at my location, a little sleet mixed in was the best i got.

A breezy, cloudy night with showers of sleet, an overnight low of 1.7c. Currently; Breezy and cloudy. Temp 3.9c Dp 3c Wind Chill 1.2c Wind N/E 12mph Gusting 26mph Rain since midnight 1.4mm

COMET ISON PLUNGES TOWARD THE SUN: Comet ISON is plunging toward the sun at 140,000 mph (62 km/s). You can almost feel the velocity in this image taken on the morning of Nov. 20th by astronomers using the 0.4 meter telescope at the Observatorio de la Hita in La Puebla de Almoradiel, Toledo, Spain: "The comet looked very bright," report the observing team. "The tail was not as well defined today because of the proximity of morning twilight...but still splendid!!" The comet is brightening rapidly as it approaches the sun. Experienced observers put ISON's rising magnitude near +4.0, well above the threshold of naked-eye visibility. The problem is, the glare of the sun is brightening even faster. Amateur photography of the comet will be possible for a few more days and, soon, only NASA's fleet of solar observatories will be able to track the sundiver. http://www.spaceweather.com/