YCL BOY

À Wilmington KNKT, le Max Gust étais de 76 kts ou 140 km/h KNKT 140154Z 05050G76KT 1 1/4SM +RA BKN012 OVC017 25/ A2940 RMK AO2 PK WND 05076/0145 SLP953 P0070 T0250 $

Petite Photo de ce matin (Mer-12-Sept) aucune convection sur le Lac St-Pierre et le Fleuve, créant une belle route sans nuage sur la pleine longueur du fleuve.

Début du Grésil à Prevost 15:45, nos première précipitation de toute cette fin de semaine, temp -1.6c

À Rimouski début de la neige 14:00.

À Prévost 22cm.

Dans le coin de St-Lin, il y avait du -37°C dans les creux des petite vallée.

Prévost un beau 27 cm à 11:15. Ça fait du bien! Total Total de 70mm en 24 hrs Pluie, Grèsil, FZRA, Neige.

On ne voit même plus le phare de Pointe au Père prêsentement sur la webcam. http://www.shmp.qc.ca/webcam/webcamsud10.html

Moi je trouve ça super beau quand même!

À Prevost aussi de -7c à +0.5c en quelque min... Environ une dizaine de cm de neige, et à 13:45 lcl de la petite pluie fine qui tombe, Yeurk!

Et voila les keys!

C'est quant même assez beau! et je vois des éclair au contour de l'oeil, pour ceut qu'il ce demandais.

Un direct hit et petit break de quelques min pour St-Martin!

Prévost légère bruine verglaçante. Depuis 15:00 (but very light intensity!)

À Prévost Les précip on comencé à 07:30 sous un mélange de neige Grésil pour être estimé 5 cm, avant de devenir PV pour approx 10mm et puis vers 23:00 changement 100% neige 14cm. Je pense avoir reçue environ 32mm en EQV eau. Donc un peut moin de PV que St-Jérome, mais je me suis fait bouffer mes cm de neige par le grésil big time!

Prévost un beau total de 20cm, quelle belle façon de finir une année et en commencer une autre... La station du MTQ à St-Sauveur a reçue au moins 21.8 mm en équivalent d'eau! Bonne Année à tous!

14cm et ça tombe toujours... Prevost.

À Prévost un beau 14cm mesuré à 21:30.

Bourasque de Neige qui vient de ce terminer à Prévost, visibilité à moins de 250m, début vers les 20:15.

Nous avons eut un super beau Wall Cloud ce soir à Dalhousie NB, la photo et un peut sombre et un peut en retard, mais ça donne une idée, bonne vacance à tous!

À Prévost 23cm, précipitation liquide depuis 10:00

À Québec, petit effet de fleuve ce matin avec ce froid!

À Prévost, on s'est fait gâter aujourd'hui par les quantité et le ratio. La station du MTQ de St-Sauveur donne environ 17mm d'éq d'eau.

À Iqualuit mardi des vents de 150.1 km/h, avec une pression de 943,44 mbar = 27,86 "/Hg CYFB 072300Z 05058G76KT 1/8SM R35/2000FT/N -SN +BLSN VV000 M11/M13 A2832 RMK BLSN8 PRESFR SLP595 CYFB 080600Z 09045KT 1 1/2SM -SN BLSN VV003 A2786 RMK BLSN8 http://www.cbc.ca/news/canada/north/iqaluit-mayor-i-ve-never-seen-winds-like-that-ever-1.2488407 Un TIme Lapse de Iqualuit, et puis une petite randonné dans le Blizzard LOL...

The Coldest Place in the World. Des données provenant de l'est de l'Antarctique analysées récemment montrent que cette région isolée a battu un record de froid sur Terre, avec une température de - 93,2 degrés Celsius. Le 10 août 2010. http://science.nasa.gov/science-news/science-at-nasa/2013/09dec_coldspot/ http://www.radio-canada.ca/nouvelles/science/2013/12/09/004-antarctique-record-temperature.shtml http://assets.pinterest.com/images/PinExt.pngDec. 10, 2013: What is the coldest place on Earth? It is a high ridge in Antarctica on the East Antarctic Plateau where temperatures in several hollows can dip below minus 133.6 degrees Fahrenheit (minus 92 degrees Celsius) on a clear winter night. Scientists made the discovery while analyzing the most detailed global surface temperature maps to date, developed with data from remote sensing satellites including the new Landsat 8, a joint project of NASA and the U.S. Geological Survey (USGS). Ted Scambos, lead scientist at the National Snow and Ice Data Center in Boulder, Colo., joined a team of researchers reporting the findings Monday at the American Geophysical Union meeting in San Francisco. With remote-sensing satellites, scientists have found the coldest places on Earth, just off a ridge in the East Antarctic Plateau. The coldest of the cold temperatures dropped to minus 135.8 F (minus 93.2 C) -- several degrees colder than the previous record. Image Credit: Ted Scambos, National Snow and Ice Data CenterResearchers analyzed 32 years' worth of data from several satellite instruments. They found temperatures plummeted to record lows dozens of times in clusters of pockets near a high ridge between Dome Argus and Dome Fuji, two summits on the ice sheet known as the East Antarctic Plateau. The new record of minus 136 F (minus 93.2 C) was set Aug. 10, 2010. That is several degrees colder than the previous low of minus 128.6 F (minus 89.2 C), set in 1983 at the Russian Vostok Research Station in East Antarctica. The coldest permanently inhabited place on Earth is northeastern Siberia, where temperatures in the towns of Verkhoyansk and Oimekon dropped to a bone-chilling 90 degrees below zero Fahrenheit (minus 67.8 C) in 1892 and 1933, respectively. "We had a suspicion this Antarctic ridge was likely to be extremely cold, and colder than Vostok because it's higher up the hill," Scambos said. "With the launch of Landsat 8, we finally had a sensor capable of really investigating this area in more detail." The quest to find out just how cold it can get on Earth -- and why -- started when the researchers were studying large snow dunes, sculpted and polished by the wind, on the East Antarctic Plateau. When the scientists looked closer, they noticed cracks in the snow surface between the dunes, possibly created when wintertime temperatures got so low the top snow layer shrunk. This led scientists to wonder what the temperature range was, and prompted them to hunt for the coldest places using data from two types of satellite sensors. http://science.nasa.gov/media/medialibrary/2013/12/10/coldspot.jpgThe coldest place on earth is in the East Antarctic Plateau, but not at the highest peak. Rather, the coldest spots develop just downhill from a ridge that runs from Dome A to Dome Fuji. MovieThey turned to the Moderate Resolution Imaging Spectroradiometer (MODIS) instruments on NASA's Terra and Aqua satellites and the Advanced Very High Resolution Radiometer (AVHRR) on several National Oceanic and Atmospheric Administration satellites. These sensitive instruments can pick up thermal radiation emitted from Earth's surface, even in areas lacking much heat. Using these sensors to scan the East Antarctic Plateau, Scambos detected extremely cold temperatures on a 620-mile stretch of the ridge at high elevations between Argus and Fuji, and even colder temperatures lower elevations in pockets off the ridge. Then, with the higher resolution of the Thermal Infrared Sensor (TIRS) aboard Landsat 8, the research team pinpointed the record-setting pockets. The team compared the sites to topographic maps to explore how it gets so cold. Already cold temperatures fall rapidly when the sky clears. If clear skies persist for a few days, the ground chills as it radiates its remaining heat into space. This creates a layer of super-chilled air above the surface of the snow and ice. This layer of air is denser than the relatively warmer air above it, which causes it to slide down the shallow slope of domes on the Antarctic plateau. As it flows into the pockets, it can be trapped, and the cooling continues. "By causing the air to be stationary for extended periods, while continuing to radiate more heat away into space, you get the absolute lowest temperatures we're able to find," Scambos said. "We suspected that we would be looking for one magical site that got extremely cold, but what we found was a large strip of Antarctica at high altitude that regularly reached these record low temperatures." http://science.nasa.gov/media/medialibrary/2013/12/10/splash2.jpgThis narrated animation shows the process by which the coldest place on Earth develops its extreme low temperatures. Play itThe study is an example of some of the intriguing science possible with Landsat 8 and the TIRS instrument, which was built at NASA’s Goddard Space Flight Center in Greenbelt, Md. Since its launch Feb. 11, Landsat 8 has captured approximately 550 scenes per day of Earth's land surface. USGS processes, archives and distributes the images free of charge over the Internet. "With Landsat 8, we expect to see more accurate and more detailed maps of the landscape than we've ever been able to see," said James Irons, the mission's project scientist at Goddard. "If change is occurring, I think we'll be able to detect it earlier and track it." Researchers also are eager to see what new results come out of Landsat 8, both from icy plateaus and Earth's warmer regions. "What we've got orbiting Earth right now is a very accurate and consistent sensor that can tell us all kinds of things about how the land surface of Earth is changing, how climate change is impacting the surface of Earth, the oceans of Earth, and the icy areas of Earth," Scambos said. "Finding the coldest areas on Earth is just the beginning of the discoveries we're going to be able to make with Landsat 8." Credits:Production editor: Dr. Tony Phillips | Credit: Science@NASA More information: NASA's Landsat 8 website