This scene was caused by a tanker full of mackerel spilling on a Belfast street in 2015, but a fish rain might look similar.
This scene was caused by a tanker full of mackerel spilling on a Belfast street in 2015, but a fish rain might look similar.
Charles McQuillan/Getty Images

5 Weird But Real Weather Events

This scene was caused by a tanker full of mackerel spilling on a Belfast street in 2015, but a fish rain might look similar.
This scene was caused by a tanker full of mackerel spilling on a Belfast street in 2015, but a fish rain might look similar.
Charles McQuillan/Getty Images

We don’t remember most of the weather we experience on a daily basis. Even hardcore weather geeks are hard-pressed to recall many events beyond what reporters would cover on the news. But there are some atmospheric tantrums that are memorable because of how bizarre they are. Here are some true-yet-bizarre weather phenomena that you'd be sure to remember if you ever got to experience them firsthand.

1. WEIRDNESS: RAINS OF FROGS AND FISH. CAUSE: TORNADOES

Tornadoes can do some weird things. A tornado can destroy one house while leaving the house next door seemingly untouched. They can grow miles wide or last for just a couple of seconds. But one of the weirdest things about tornadoes is that they can actually make it rain aquatic creatures. If a tornado passes over a body of water like a lake, river, or pond, the extreme suction can lift fish and frogs right out of the water. What goes up must come down, and sometimes there are people in the way to tell the story after the skies clear out.

The Library of Congress reports that fish fell on a town in Louisiana back in 1947 after a rambunctious storm. Halfway around the world, a tornado caused "thousands of frogs" to rain from the sky on a town in Serbia in 2005.

2. WEIRDNESS: HEAT BURSTS AT NIGHT. CAUSE: THUNDERSTORMS

The Sun going down on a hot day usually robs thunderstorms of the instability they need to survive, ending the day's rumbling thunder and heavy rain not long after dark. However, some thunderstorms don't go out quietly. Folks on the American Plains have to deal with heat bursts every once in a while. If a layer of dry air develops within a dissipating thunderstorm, the rain falling out of the storm can evaporate all at once. The evaporating rain creates a bubble of cool, dense air that rushes toward the ground. This bubble of descending air compresses as it falls, causing it to dramatically warm up before crashing into the ground.

Alva, Oklahoma, recently experienced one of these heat bursts. The temperature there at 7:00 p.m. on June 15, 2017, was a balmy 90°F with thunderstorms in the area. By 8:00 p.m., the temperature dramatically rose to 96°F, and it peaked at 99°F by 8:20 p.m.. The sudden rise in temperature was accompanied by 20 to 30 mph winds and a sharp drop in humidity. Temperatures returned to normal by 9:30 p.m. Some heat bursts are even more dramatic, briefly raising temperatures above 100°F even in the middle of the night.

3. WEIRDNESS: PLANES THAT CAN'T FLY. CAUSE: INTENSE HEAT

Weather is the cause of most flight delays and cancellations in the United States. Whether conditions are too extreme for safe flying or rain and clouds just slow things down, it's never fun to have to fly when there's a big weather system rolling through. Sometimes even clear skies and bright sunshine can cancel flights. Phoenix, Arizona, recently made the news for their record-breaking heat wave canceling flights at the city's major airport.

Temperatures rose as high as 120°F in Phoenix, preventing some flights from safely landing or departing. Since hot air is less dense than cold air, extreme heat can prevent certain airplanes from generating the lift they need to safely take flight. If these airplanes try to take off in excessively high temperatures, the airplane runs the risk of barreling off the end of the runway before it could lift off.

4. WEIRDNESS: WET CYCLONES ON DRY LAND. CAUSE: POSSIBLY "BROWN OCEAN EFFECT"

Tropical cyclones usually fall apart once they make landfall. These swirling storms gather their energy from the heat given off by warm ocean waters; once that source of warmth runs out, the thunderstorms around the eye of the cyclone fizzle out and the storm starts weakening. Not all storms immediately fall apart once they hit land, though. Recent studies suggest that there's a "brown ocean effect," where warm, moist soil can serve as a substitute for warm ocean water, helping cyclones stay alive a little longer over land.

The southern United States saw a great example of this not too long ago. Tropical Storm Erin made landfall in Texas in August 2007 as a weak storm with 40 mph winds. Erin made its way inland and unexpectedly strengthened over Oklahoma three days later. The storm eventually grew stronger over central Oklahoma than it had been when it was over the Gulf of Mexico. The storm blew through Oklahoma with wind gusts of more than 80 mph and even started to develop an eye-like feature as it approached Oklahoma City.

5. WEIRDNESS: BALL LIGHTNING. CAUSE: UNKNOWN

A healthy fear of lightning is normal. This awe-inspiring phenomenon is hotter than the surface of the Sun and packs enough electrical charge to stop your heart if you're unlucky enough to get struck. Lightning is the subject of extensive scientific study, but we still don't know everything about this immense force of nature, including why it can sometimes form into a ball.

We don't know much about ball lightning outside of the thousands of anecdotal reports from people who were startled by this unusual and short-lived phenomenon. Ball lightning is reportedly lightning that forms into a ball immediately after the strike of a normal bolt of lightning. After forming, it can reportedly move erratically, skip across the ground, and burn through surfaces it touches. Most reports state that it only lasts a couple of seconds before disappearing. A group of Chinese scientists captured this phenomenon on camera for the first time back in 2012, but experiencing it was the result of pure luck—something that doesn't foster much scientific research.

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This scene was caused by a tanker full of mackerel spilling on a Belfast street in 2015, but a fish rain might look similar.
iStock
Britain Is in the Midst of a Rare ‘Wind Drought’
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iStock

Generating renewable energy in Britain is a little less than a breeze these days: A “wind drought” is halting the country’s wind turbines.

This month’s wind energy output is down 40 percent from the same time last year, New Scientist reports. On average, about 15 percent of Britain’s electricity comes from wind power. Data starting from July 1 of this year put the monthly average closer to 6.9 percent. Last month, turbines were producing less than 2 percent of Britain’s electricity—the lowest output in two years.

That’s with even more wind turbines being installed over the course of the past year, New Scientist says. The data aren’t entirely surprising, though. The jet stream tends to make the UK’s weather drier and calmer during the summer and wetter and stormier during the winter. But the high pressure the jet stream has brought with it this year has been unusually prolonged, scientists say.

“It’s like a lid, it keeps everything still,” UK Met Office spokesperson Grahame Madge told New Scientist. “From the forecast looking out over the next couple of weeks, there doesn’t seem to be any significant change on the way.”

The wind drought shouldn’t cause too many problems in the short term. Electricity demand is low during the summer (very few British homes have air conditioning), and the country’s been able to compensate for the lack of wind by burning more natural gas. If the wind drought continues to persist, though, UK residents may begin to see an increase in utility fees. Natural gas prices have already risen with the increased demand.

“As we continue to transition to a low-carbon energy system, managing the intermittency of renewable power an important role in balancing supply and demand,” a National Grid spokesperson told New Scientist. “However, we have planned for these changes and [are] ready to play our part.”

The wind drought comes about eight years after British politicians vowed to reduce the UK's dependence on fossil fuels. Last year was the first year that electricity generated from low-carbon energy sources like solar power, wind power, and nuclear power outpaced high-carbon energy sources like coal and natural gas. This summer’s wind drought may make it difficult to improve on last year’s numbers.

[h/t New Scientist]

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This scene was caused by a tanker full of mackerel spilling on a Belfast street in 2015, but a fish rain might look similar.
iStock
Why Does the Sky Look Green Before a Tornado?
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iStock

A common bit of folklore from tornado-prone parts of the U.S. says that when the skies start taking on an emerald hue, it's time to run inside. But why do tornadoes tend to spawn green skies in the first place? As SciShow's Michael Aranda explains, the answer has to do with the way water droplets reflect the colors of the light spectrum.

During the day, the sky is usually blue because the shorter, bluer end of the light spectrum bounces off air molecules better than than redder, longer-wavelength light. Conditions change during the sunset (and sunrise), when sunlight has to travel through more air, and when storms are forming, which means there are more water droplets around.

Tornadoes forming later in the day, around sunset, do a great job of reflecting the green part of the light spectrum that's usually hidden in a sunset because of the water droplets in the clouds, which bounce green light into our eyes. But that doesn't necessarily mean a twister is coming—it could just mean a lot of rain is in the forecast. Either way, heading inside is probably a good idea.

For the full details on how water and light conspire to turn the sky green before a storm, check out the SciShow video below.

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