Mount Washington Observatory (MWOBS) - White Mountains, New Hampshire (NH) climateprediction.net | The world's largest climate forecasting experiment for the 21st century. Storm Chaser Official World Homepage UK weather: Stunning images of snow-capped British landscapes Department of Health issue 'Level 2' cold-weather alert as freeze poses significant health risks Warning of ice forming on untreated surfaces By Daily Mail Reporter Updated: 11:31 GMT, 29 January 2012 For those enjoying the unseasonably warm weather, the blast of freezing Arctic cold sweeping across Britain is in unwelcome reminder of what winter's normally like. But anyone with an eye for a stunning photograph is sure to welcome the dusting of snow which helps create a picturesque winter scene. The scene below was the view earlier today across Carr Shields in Northumberland, as a icy weather front swept south across the country from Siberia. Winter arrives: The unseasonably mild winter gave way to cold and snow which turned Carr Shields, Northumberland, pictured, into a picturesque snowy scene Freezing: Weather forecasters saying the cold weather could last into February as homes in Allendale, Northumberland, stoke up their fires to keep warm So could there be a sting in the tail this year?
Clouds Over Mount Shasta You will often hear the expression, "Mount Shasta makes its own weather." How can a mountain make its own weather? The main answer is that Mount Shasta's presence causes air to be uplifted. All precipitation comes from clouds. Clouds are formed through the process known as condensation, which is typically caused by cooling. The term orographic comes from the Greek word oros, meaning mountain. Mount Shasta is known for its beautiful clouds. Lenticular Cloud over Mount Shasta Photo © 1989 Barrie Rokeach Clouds are the visible expression of the process known as condensation. Shasta looms majestically in the pure ether, capped with a cloud, against whose bosses the early sungold is beating... Lenticular cloud over Mount Shasta, reflected in Siskiyou Lake Photo © 2001 Jane English Clouds are constantly changing shape and so it is sometimes difficult to categorize them. Rather than having what Howard called groups, clouds today are often categorized into forms. Cirrus Cirrocumulus Cirrostratus
Evidence The Earth's climate has changed throughout history. Just in the last 650,000 years there have been seven cycles of glacial advance and retreat, with the abrupt end of the last ice age about 7,000 years ago marking the beginning of the modern climate era — and of human civilization. Most of these climate changes are attributed to very small variations in Earth’s orbit that change the amount of solar energy our planet receives. Scientific evidence for warming of the climate system is unequivocal. The current warming trend is of particular significance because most of it is very likely human-induced and proceeding at a rate that is unprecedented in the past 1,300 years.1 Earth-orbiting satellites and other technological advances have enabled scientists to see the big picture, collecting many different types of information about our planet and its climate on a global scale. The evidence for rapid climate change is compelling: Sea level rise Global temperature rise Warming oceans Glacial retreat
Får ikke flytte hjem ennå Det har vært bevegelser i leirmassene i rasområdet i løpet av natta. Ingen får flytte hjem i dag, men noen kan få hente ting de trenger inne i husene i rasområdet på Byneset i Trondheim. Regionsjef i Norges Vassdrags og Energidirektorat, Kari Øvrelid sier at leira og jordmassene i rasområdet på Byneset i Trondheim har beveget seg i løpet av natta og det gjør situasjonen usikker. De gjør seg klare til å inspisere raskanten. Nye vurderinger – Først og fremst skal vi undersøke rasområdet grundig, sier Øvrelid. I samarbeid med Trondheim kommune skal de få satt opp en borerigg for å finne ut hvor ustabil leira er rundt selve raset. – Vi håper at leira er stabil, men vi lar oss bekymre så lenge det skjer ting i rasgropa, sier Øvrelid. Vet ikke om det har rast ferdig Rasområdet granskes også fra lufta. Får ikke flytte hjem Det betyr at de 35 personene som fortsatt er evakuert, ikke får flytte hjem med det første, men trolig får en del av dem hente ting hjemmefra. Katastrofealarm
Lightning What is lightning? Lightning refers to one of the several forms of visible electrical discharge produced by thunderstorms. It is essentially a giant spark that jumps between vast pools of positive and negative electrical charge that form inside thunderstomrs The primary forms of lightning discharges are cloud-to-ground (CG), cloud-to-cloud (CC), in-cloud (IC) and cloud-to-air (CA). How hot is lightning? What are the electrical currents within a lightning discharge? How often does lightning occur on our planet in a year? Why does lightning appear to flicker? Does lightning strike up or down? How many kinds of cloud-to-ground flashes are there? What is thunder? How far away was the last lightning bolt? How often does lightning strike the ground in the U.S. each year? How wide is a bolt of lightning? How far away from the lightning bolt can you hear the thunder? Can lightning come from ice? Does Florida always have the most lightning? Thunderstorm approaching. What is a fulgerite?
10 Rare Cloud Formations Our World This is a list of what I believe to be the top 10 rarest cloud formations. And a brief description of each. No particular order in how ‘rare’ they are though. 1. Nacreous Clouds These rare clouds, sometimes called mother-of-pearl clouds, are 15 – 25km (9 -16 miles) high in the stratosphere and well above tropospheric clouds. Nacreous clouds shine brightly in high altitude sunlight up to two hours after ground level sunset or before dawn. 2. Mammatus are pouch-like cloud structures and a rare example of clouds in sinking air. 3. Also known as jellyfish clouds due to their jellyfish-like appearance. 4. Noctilucent Clouds or Polar Mesopheric Clouds: This is an extroadinarily rare cloud formation that occurs out on the verge of space between 82km to 102 km from the earth’s surface. 5. A mushroom cloud is a distinctive mushroom-shaped cloud of smoke, condensed water vapor, or debris resulting from a very large explosion. 6. Average height is around 16,500 ft. 7. 8. 9. 10.
WWLL Network Global Lightning Locations New study finds geologic sequestration &is not a practical means to provide any substantive reduction in CO2 emissions& By Joe Romm on April 27, 2010 at 1:23 pm "New study finds geologic sequestration “is not a practical means to provide any substantive reduction in CO2 emissions”" Carbon capture and storage (CCS) has dug itself into quite a deep hole. Costs remain very, very high (see Harvard study: “Realistic” first-generation CCS costs a whopping $150 per ton of CO2 “” 20 cents per kWh!). And nobody wants the CO2 stored underground anywhere near them (see CCS shocker: “German carbon capture plan has ended with CO2 being pumped directly into the atmosphere”). Now comes a new study in the Journal of Petroleum Science and Engineering, “Sequestering carbon dioxide in a closed underground volume,” by Christene Ehlig-Economides, professor of energy engineering at Texas A&M, and Michael Economides, professor of chemical engineering at University of Houston. Published reports on the potential for sequestration fail to address the necessity of storing CO2 in a closed system. The study concludes: Precisely.
Pictures of Clouds and Sunsets - What a Wonderful World Long’s Peak – Sunset Pictures of Clouds and Sunsets credit: David Evenson These pictures of clouds, nature and landscape are really inspirational. Clouds are created when rising air, through expansion, cools to the point where some of the water vapor molecules “clump together” faster than they are torn apart by their thermal energy. Some of that (invisible) water vapor condenses to form (visible) cloud droplets or ice crystals. After cloud droplets form, one of two things happen. Either they collide with each other and grow by joining together to such a large size that they fall to the ground as rain or snow, or they evaporate and change back into water vapor. In any case the beauty is impossible to ignore and our Grand Architect surely has an excellent eye for design. Hint: Use “J” and “K” keys to navigate from picture to picture. July SunflowersPictures of Clouds and Sunsets credit: David Evenson Valley Tractor Sprinkler & SunsetPictures of Clouds and Sunsets credit: David Evenson
60 insane cloud formations from around the world [PICs] Cloud varieties go way beyond the cumulus, stratus, and cirrus we learn about in elementary school. Check out these wild natural phenomena. STANDING IN A CORNFIELD IN INDIANA, I once saw a fat roll cloud (like #4 below) float directly over my head. It’s a 12-year-old memory that remains fresh. I imagine a lot of these photographers having similar hesitations as they set up for the shots below.