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Sat, 23 Oct 2021
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The story behind the incredible optical phenomenon photographed in New Hampshire

Thursday update: Newly obtained photo shows off additional dramatic sky phenomena
Optical phenomena over NH
© Alex Kotzias
After posting the original version of the story, Alex Kotzias wrote in with this incredible photo taken from Cannon Mountain's chairlift. The portrait-mode photo captures two more halo phenomena that were high up out of view in the original photograph: a superlateral arc and a circumzenithal arc. The former curves downwards, while the latter opens up like a bowl. Circumzenithal arcs look like upside-down rainbows wrapping around an imaginary point straight above.
Optical phenomena over NH
© Alex Kotzias, adapted by Matthew Cappucci/WaPo
That brings the total number of atmosphere phenomena in Franconia Notch on Saturday to nine! Part of the reason? Diamond dust. Kotzias' photo confirms the presence of tiny ice crystals floating around in the air at ground level. That's what those shimmering white sparkles are. The ice crystal overload means the 22-degree ring can even appear to shimmer down on the ground! And like a diamond, the resulting colors were truly priceless.

Snowflake Cold

North America just had its most extensive November snow cover in at least a half-century

Plot of North America November snow cover
© Rutgers University Global Snow Lab
Plot of North America November snow cover anomalies from 1966 through 2018. November 2018's record snow cover extent was roughly 1.4 million square miles above the average from 1981 through 2010.
November 2018's North America snow cover set a record for any autumn month in the satellite era.

Last November's average snow cover across North America was an estimated 5.24 million square miles, topping the previous November record of 5.11 million square miles in 2014, according to data from the Rutgers University Global Snow Lab (GSL) dating to 1966.

This extent of snow cover was about 861,000 square miles larger than average, over three times the size of Texas.

Snowflake

Record numbers coming out of Colorado ski resorts - Breckenridge has had over 10 feet of snow to date

Breckenridge
© Chris Rogers
Breckenridge
If you've been to any resort so far this winter, you know that this is shaping up to be one of the best years ever for Colorado skiing! Here are the records we've broken this season, and how this December stacks up to last year's.

This year Breckenridge Ski Resort opened two days early, marking the earliest opening day (Nov. 7) in more than a decade. North America's highest chairlift, the Imperial Express Super Chair, had its earliest opening EVER on Thanksgiving Day. (That's ever in the history of the chairlift's existence since 2005!)

Breckenridge received 80 inches of snow in the month of November - the second highest snowfall recorded in November over the past 20 years. The resort recorded 110 inches of snowfall from mid-October through the end of November - the most early season snowfall on record. Season-to-date, the resort has had more than 10 feet of snow.


Attention

Five pilot whales strand in Fife, Scotland - 3 die

The pilot whales washed up in the Firth of Forth.
© James McKenzie
Stranded: The pilot whales washed up in the Firth of Forth. James McKenzie
Five pilot whales became stranded in Fife after being spotted in the Firth of Forth on Tuesday.

Three whales have died after beaching in the Firth of Forth.

Five pilot whales became stranded after they were initially spotted in shallow water near the Fife village of Culross on Tuesday.

The mammals were refloated from the mudflats near Torryburn at high tide on Wednesday evening by a British Divers Marine Life Rescue (BDMLR) team, assisted by the coastguard, Scottish Fire and Rescue Service, Special Operations Response Team and Network Rail.

Seismograph

Strong 6.2 magnitude earthquake hits New Caledonia - Two days after M7.6 quake

A 6.2 magnitude quake has hit the South Pacific French territory of New Caledonia
© USGS
A 6.2 magnitude quake has hit the South Pacific French territory of New Caledonia
A strong earthquake with a preliminary magnitude of 6.2 struck east of the Loyalty Islands near New Caledonia in the South Pacific on Friday, the US Geological Survey said.

The quake hit at a depth of 26km (16 miles) about 189km (117 miles) east-southeast of Tadine in the Loyalty Islands, the USGS said.

There were no immediate warnings from the Pacific Tsunami Warning Centre.

It follows a powerful 7.6 quake that hit near New Caledonia on Wednesday.

Comment: Powerful 7.6 magnitude earthquake strikes off New Caledonia in South Pacific - Magnitude 7.0 aftershock


Arrow Down

Iran's capital, Tehran is sinking and it may be irreversible

Iran’s capital, Tehran
© Shuttershock
The ground is shifting and sinking under Iran’s capital, Tehran.


A recent study based on analyzed satellite data shows that the Iranian capital is sinking at a rate of 10 inches per year


Tehran is sinking. This is not a metaphor connected to American sanctions or the drop in oil prices, but the conclusions of a recent study that analyzed satellite data about the Iranian capital. It found that some parts of the city are sinking into the ground at a rate of up to 25 centimeters (nearly 10 inches) a year. The researchers also found that the sinking areas are expanding and could reach the city's international airport.

The research by two scientists from the GFZ German Research Center for Geosciences at Potsdam was accepted for publication by the scientific journal Remote Sensing of Environment. The findings were also published on the website of the journal Nature. The researchers used satellite tracking data from 2003 to 2017 to track the rate of land subsidence in Tehran. A previous study linked the sinkage to the depletion of the groundwater aquifers under the city, which are being pumped to irrigate the fields surrounding the capital and to supply water to the city's 13 million residents.

Comment: Sinkholes, giant earth cracks and general instability of the earth beneath our feet seems to be increasing. Not all of which is related to the depletion of groundwater aquifers or to areas with historical mining activity. Yellowstone has shown a surge in activity recently.

Why is it that all of a sudden, all over the world, the ground has become so unstable? See also: View also this short informative video: Sinkholes: The groundbreaking truth




Snowflake

Snow already piled high across the Sierra Nevada - Mammoth Mountain tops 100 inches so far

snow
Across the flank of the Tahoe Basin, miles of forest are glazed with a white frost and tree branches are flexing under the weight of snow.

This is the first week of December?


The scenes across the Sierra Nevada and Shasta-Cascade ranges are a testament to early-season storms that have swept across the high country in Northern California.

In contrast with last year, all 23 ski areas — big and small — are projected to be open by the Dec. 14-16 weekend, just in time for a banner Christmas holiday season.


Cloud Precipitation

At least 4 killed in Cyprus flooding

Divers search a swollen river in Kyrenia
© REUTERS/Yiannis Kourtoglou
Divers search a swollen river in Kyrenia, north Cyprus, December 6, 2018.
At least four people were killed in flooding in northern Cyprus as hail and rain hammered the island, Turkish Cypriot media reported on Thursday.

The victims died when their car was swept away during heavy rain late on Wednesday, media reported. Cyprus residents have reported virtually uninterrupted rain since early Tuesday, with some saying it was the heaviest in memory.

Flash flooding from an isolated downpour is not uncommon on the island, but sustained floods are rare. Further bad weather was expected on Thursday, with the met office issuing a severe alert warning for the next 24 hours.


Cloud Lightning

Lightning bolt kills 3 in Zimbabwe

lightning
Three people died after being struck by a bolt of lightning Wednesday afternoon in Mutasa district's Ward 28 near Chavhanga Primary School.

ZRP provincial spokesperson Inspector Tavhiringwa Kakohwa said he was on leave referring questions to Nyanga district counterpart Assistant Inspector Cuthbert Tanyanyiwa who said they were yet to receive a report on the incident.

According to local villagers Misheck Nheredzo, Jealous Nyabanda and Phenias Mubata died after being struck by lightning while thatching a hut.

"They were thatching a hut when disaster struck. It's sad. Police have been notified but we have been told to go ahead with burial arrangements," said one villager.

Comment: Across the globle within the last week lightning strikes have also killed 2 people in Zamiba, 3 farmers in Maharashtra, India, an individual in Iraq and another farmer in Tanzania.


Sun

Sundog seen in the sky over Frisco, Texas

If you looked into sky on Monday, you might have noticed something just a little different with the sun. It was still there, don't worry. But in North Texas, it was obscured behind a haze of wispy clouds and joined on both sides by what looked like flashes of a rainbow.

Except there hadn't been any rain all day.

Instead, what you were seeing was called a "sundog," which doesn't actually look like much of a dog but is a cool name nonetheless. WFAA meteorologist Jesse Hawila snapped a good picture of Monday's sundog in Frisco. Notice the rainbow-like arch above the sun:
Sundog over Frisco, Texas
© WFAA/Jesse Hawila