This fascinating video from the American Chemical Society answers that question but unfortunately provides no answers about why so many clouds look like bunnies.

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And this dude finally got his moment. Read the rest

Satellite monitoring company ICEYE composed this image, based upon satellite shots of the storm-drenched Bahamas, which shows how much of Grand Bahama went underwater as Hurricane Dorian arrived. Read the rest

CBS News reports that Hurricane Dorian has become more alarming overnight and may grow to Category 4, making it "very dangerous" to the Miami-area coastline it's headed toward.

There's a good chance Dorian will power its way into a Category 4 with potentially catastrophic 140 mph winds before making landfall on the mainland U.S., the center added, according to CBS News weather producer David Parkinson.

He said Dorian would probably make landfall early Monday evening at the earliest and Tuesday morning at the latest, probably over the central Florida Atlantic coast though possibly farther south.

Florida residents rushed to supermarkets across the state to buy food and supplies.

CNN is now predicting a "monster."

"If you're anywhere on that east coast of Florida, you want to have food, water, medicine for up to seven days," Gov. Ron DeSantis said Thursday. Dorian warrants a multibillion dollar price tag, FEMA associate administrator Jeffrey Byard told reporters Thursday.

"This is going to be a big storm. We're prepared for a big response," he said.

Since Dorian had minimal impact on Puerto Rico, the agency is shifting staff from the island to Florida in preparation.

Illustration: CNN. Headline: Heather Beschizza Read the rest

Talk about a shitstorm. In Florida, a Port Charlotte woman said that lightning destroyed her septic tank, and made the toilet in her house explode. Read the rest

Ten years ago, we showed you a method for baking cookies on your car dashboard on hot days while you're at work, filling your car with delicious baking smells and a tray of warm cookies for the commute home. Read the rest

The Old Weather project is a crowdsourced effort to gather data on historic climate patterns by transcribing entries from old, logbooks, some typed and some handwritten. The project is jointly run by NOAA and the Smithsonian. (via Kottke) Read the rest

Here in Alberta, Canada, it's been a frigging miserable summer so far: cold, full of rain and precious little sun. For weeks, I've been mumbling under my breath, in tooth-grinding resentment, that I should have stayed in Mexico for the rest of the year. I'm not asking for much, just a few weeks of clear skies and a temperature that peaks over 20°C for a few days in a row. Not everyone in the world, however, have the same aspirations. According to data interpreted by the Copernicus Climate Change Service (a European Centre for Medium-Range Weather Forecasts joint,) This past month was the hottest June in recorded European history.

From The CCCS:

Summer has barely begun, but temperature records are already being broken. Data released today show that the European-average temperature for June 2019 was higher than for any other June on record. Average temperatures were more than 2°C above normal and it has become the hottest June ever recorded.

Although not as persistent as that of summer 2018, this short heat wave, caused by a mass of hot air coming from the Sahara Desert, was intense. The five days of unusually high temperatures followed days with record-breaking temperatures further east in Europe. This led to the month as a whole being around 1°C above the previous record for June, set in 1999, and about 1°C higher than expected from the trend in recent decades.

The report goes on to mention that linking the temperature increase directly to climate change is a bit tricky as "...such extreme weather events are expected to become more common as the planet continues to warm under increasing greenhouse gas concentrations." So uh, yeah... Read the rest

In this footage from 2016, tornado-hunters get rather too close to a big'un near Wray, Colorado: "we're out of gas!" Read the rest

While 5G mobile networks promise to provide tremendous wireless speeds with low latency, they may also make it more difficult for meteorologists to provide weather forecasts. That's because 5G's neighboring frequencies are used by satellites that detect water vapor in the atmosphere, data that informs weather models used by meteorologists. From Nature:

Astronomers, meteorologists and other scientists have long worked to share the spectrum with other users, sometimes shifting to different frequencies to prevent conflicts. But “this is the first time we’ve seen a threat to what I’d call the crown jewels of our frequencies — the ones that we absolutely must defend come what may”, says Stephen English, a meteorologist at the European Centre for Medium-Range Weather Forecasts in Reading, UK.

They include the 23.8-gigahertz frequency, at which water vapour in the atmosphere emits a faint signal. Satellites, such as the European MetOp probes, monitor energy radiating from Earth at this frequency to assess humidity in the atmosphere below — measurements that can be taken during the day or at night, even if clouds are present. Forecasters feed these data into models to predict how storms and other weather systems will develop in the coming hours and days.

But a 5G station transmitting at nearly the same frequency will produce a signal that looks much like that of water vapour. “We wouldn’t know that that signal is not completely natural,” says Gerth.

Blessed are the water main bursts, and the heavy rains. Reportedly taken at the Culinary Institute of Aerica in St Helena, California. [via] Read the rest

The composition of the shot is perfect. You know it's going to happen. And when it does, it's delightful rather than horrible. I'd spend at least an hour sliding down again and again, and might even install a rope and traffic barriers to expedite and ensafen the joy. Read the rest

KING 5 news up in Seattle compiled this selection of drivers in Lynnwood, a suburb south north of town, who really should not be out in their pokey little front-wheel-drive compacts. [Thanks, Dean!]

Correction: Lynnwood is north of Seattle, not south of it. Read the rest

Cold is slow to worsen. Then it's fast.

A large ice jam formed and released on the Ausable River at Au Sable Forks, NY on January 12, 2018. The ice jam was caused by a combination of rapid snow melt with moderate rain in abnormally warm temperatures. The gauge peaked at 13.27 ft and the gauge data showed that the river rose exactly 7.75 ft in 14 minutes during the peak rise meaning the river rose at just over half a foot a minute at that time.

2018 was the fourth warmest year ever recorded on planet Earth, NOAA reported today. Read the rest

Meanwhile, in the southern hemisphere,

Australia recorded its hottest month ever in January, with average temperatures exceeding 30C (86F) for the first time. According to the Bureau of Meteorology, the extreme heat was "unprecedented" during the country's summer period. At least five January days were among the 10 warmest on record, with daily national temperature highs of 40C.

Heatstroke and bushfires everywhere. Nightmarish scenes of wild horses dying of thirst by the dozens. It's almost as if something's just not the same as it used to be. Read the rest

Starting Sunday evening, Jan. 20, 2019, North and South America will have a chance at seeing 2019's only total lunar eclipse, from start to finish.

Our Earth, Moon and Sun line up on Sunday night for the only total lunar eclipse of of the year. Catch it if you can. Read the rest