Questions tagged [weather]

For questions related to the climate, temperature and precipitation that a world might experience. Compare [climate] and [seasons].

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74
votes
27answers
12k views

Sword in the rock - make it last the ages

Merlin the wizard has a problem. Sure, it was a piece of cake to move forward in time to the 21st century, procure a sword that was made with the highest 21st century standards, go back in time, and ...
64
votes
25answers
13k views

Ensuring an endless war, and an endless stalemate

My 7 year old son and I have pitted the Elves against the Dwarfs - The Elves control the sky - they have airships, gliders in their cloths that enable gliding from airship to airship, and bridges ...
39
votes
14answers
9k views

How can I explain a planet with perpetual rain?

I was planning a short story that focuses on a rainy day in a city, and I realized that there's one interesting feature of it: Even though the weather seems bleak, and it affects the actions of those ...
38
votes
2answers
10k views

How would winds behave on a tidally locked planet?

If an earth-sized planet were tidally locked to a star, and was in the life zone of its star with an earth-like atmosphere, what would its wind patterns be like? The planet would have one hot ...
37
votes
7answers
6k views

What would be the necessary conditions to rain bubbles?

What would be necessary in order for bubbles to rain down from the sky, whether they are actually soap or something else? Would it even be possible? Aside from a bunch of little kids (which would be ...
36
votes
7answers
7k views

What would be the effect of a giant magical fireball burning in the ocean?

Original prompt: "What would be the effect of a giant magic fireball burning in the ocean? Imagine there's a magical fireball that stays in one spot in the middle of the ocean and emits heat at a ...
32
votes
6answers
9k views

If rain magically started falling over the Sahara, what would happen?

You may assume the rainfall will match that of a Tropical Rainforest at their wettest (304 in. annually). How would this change the landscape over time? (0-100 years)
32
votes
4answers
5k views

Is it possible for people to live in the eye of a permanent hypercane?

Wikipedia lists a potential for a hypercane which can have an eye of up to 190 miles in diameter https://en.wikipedia.org/wiki/Hypercane Say there's an earthlike planet that for whatever reason has a ...
30
votes
10answers
8k views

How can glass marbles naturally occur in a desert?

I had a dream that on my alien planet, there was a large desert that had naturally occurring glass marbles in the sand. My dream logic was that the sand was melted into glass and natural weathering ...
30
votes
7answers
5k views

How can I make raindrops bigger?

I've got an intelligent humanoid species living on a planet very similar to Earth's. However, on this planet, rainstorms are more frequent and slightly... different. Each raindrop is at least an inch ...
27
votes
2answers
1k views

Terrestrial Exoplanet Skies – I've Built a Visual Sky Chart. Is it Correct?

I'm an artist and I've been trying to find a comprehensive resource that would help me clearly identify likely sky colors for exoplanets that have atmospheres with a similar chemical composition to ...
26
votes
13answers
6k views

How can a planet have a deadly eclipse-like “spotlight”?

A solar eclipse occurs when the moon passes between the Earth and the sun. The result is a giant shadow that sweeps across the Earth's surface. This world has the opposite phenomenon. Instead of a ...
26
votes
9answers
5k views

Keeping an “hot eyeball planet” wet

Consider such a tidally locked planet: Many issues with tidally locked worlds have been discussed, but I'm not clear on how the water cycle for an otherwise Earth-like tidally locked world, would be ...
24
votes
7answers
5k views

What would make a place always misty?

What would cause a place to be always misty? It is in a Fantasy setting, but I am looking for a feasible explanation.
24
votes
5answers
6k views

What would happen to the world if all lightning stopped?

Imagine you have a weather-controlling device that you use to eliminate all lightning strikes. They're just too dangerous. What happens to the earth? Does lightning serve a necessary purpose to any ...
23
votes
8answers
3k views

Creating a dark world - How can I not completely handwave the dark cloudy atmosphere

Primary question What is going on with the atmosphere that the world is so gloomy and dark? Information I have had a low-magic fantasy world I have been wanting to solidify for a while now but ...
23
votes
5answers
12k views

How deep must a submarine dive to avoid megastorms?

In a previous question, I established an area that creates megastorms. Unlike a bunch of my other questions, this one is incredibly straightforward: Just how deep does a submarine (Or aquatic life, ...
22
votes
6answers
2k views

Scientific explanation for a exceptionally bright night sky

On an alternative Earth live the people of Tcelonia. One of their founding myths goes that, in the dawn of times, when they were under the menace of being attacked by an enemy population, for an ...
22
votes
3answers
2k views

What would ammonia snowflakes look like?

What I've found out is that Ammonia has (in the relevant temperature/pressure regime) cubic crystal structure. But what would that mean for ammonia snowflakes? Would they have fourfold symmetry? But ...
21
votes
3answers
7k views

How cold does it have to be to freeze a waterfall

I have designed a group of medieval towns located on a valley, all of them connected by a navigable river wich ends on a big waterfall. There are some elevators at the side of the waterfall that ...
21
votes
7answers
3k views

How do I maximize a planet's wave height (on average)?

Premise I am in the formation phase of a fictional world. I would like one of its notable characteristics to be extremely large waves. On Earth, most of our large waves are triggered by earthquakes, ...
21
votes
3answers
747 views

Circulation patterns on a tidally-locked binary planet

A targeted hard-science spin-off from this question: In a tidally-locked planet that rotates about a barycentric point that’s located outside of its own sphere, what would the coriolis forces be like?...
20
votes
2answers
5k views

A hang glider, sudden unexpected lift to 25,000 feet altitude, what could do this?

This is the third in a series of 5 (at this point) questions. It's not relevant to this question, but for anyone who's curious this was the first, this the second. Conditions for this question are: ...
20
votes
6answers
4k views

Is there a man-made or natural event that can cause an abrupt climate change within hours/a day?

Meaning, cause a seemingly normal winter to suddenly take a turn within hours or a day/two into a completely frozen territory? From what I've read, abrupt climate change happens from ocean currents. ...
19
votes
3answers
10k views

What is the likely method of surviving a Tsunami in a city?

After asking this question, What's the worst natural disaster that could hit New York City in our lifetime, it looks like the most popular answer was a Tsunami. A tsunami, however, from the sources of ...
19
votes
3answers
1k views

Can I huff and puff and blow a pyramid down?

I am the most powerful weather wizard in the world. I can create any sort of wind based phenomenon with a snap of my fingers. I can whip up a tornado in less than a minute, and get a Category 5 ...
19
votes
4answers
2k views

How to create the eternal storm?

The Great Red Spot on Jupiter and the numerous Great White Spots on Saturn are storm systems that encircle the globes and last for decades, centuries in Jupiter's case. These are formed on Gas Giants ...
19
votes
4answers
631 views

Can a world sustain constant low-pressure and high-pressure areas?

Would a world be able to sustain a constant low pressure area such that there would be a constant wind from one side to the other? Imagine that on one side of the world is a desert with some rocky ...
19
votes
2answers
900 views

Climate or weather simulation - free tools

Are there any free living or discontinued tools that can simulate climate or weather? BYOE and Monash are only online web climate simulation tools. Some tools I tried: ClimaSim is only free climate ...
17
votes
9answers
5k views

What would a Dragon have to exhale to cause rain?

In a fantasy world I've been working on Dragons are venerated by many for their ability to seemingly summon rain where ever they roam. It's common for the peasantry of the south to leave offerings of ...
16
votes
7answers
4k views

Tropical beaches and snow topped ski slopes

Would it be possible for a small island to have both tropical beaches with a warm sea for swimming AND snow covered mountains suitable for skiing? If it is possible: how far apart would the beaches ...
16
votes
3answers
2k views

A planet with all of its water underground

Question: Could a planet contain all of its (vast) oceans underground? I imagined a planet with no surface oceans - and no water cycle above ground - but where life was still possible. My initial ...
16
votes
5answers
2k views

How could constant or near-constant rain in an area be possible?

What would cause an area to get continuous rainfall (a la Blade Runner), and what implications would that have for other parts of the world? Ideally I'd like to hear about both natural conditions ...
16
votes
2answers
190 views

Primary environmental concerns of a new coastal settlement

A group of settlers from a mid-renaissance era have setup an initial settlement along a coastline. Materials for shelter exist and fishing serves as the initial food source. What are the primary ...
16
votes
2answers
4k views

How big must a building/spaceship be to create an indoor weather system?

The NASA Vehicle Assembly Building and the proposed Nazi Volkshalle are cited to be "big enough for weather systems to form inside them". The building has at least 10,000 tons of air conditioning ...
16
votes
5answers
1k views

Storms on a low-gravity planet

For this question, assume that the planet is Earth-like in almost every way, and is in a system like ours...the distance from the sun, orbital period, rotation, axial tilt, etc is all pretty much the ...
15
votes
8answers
2k views

What sort of geological features or weather patterns would create a region with the same temperature year-round?

Given an Earth-like planet, what sort of geological features or weather systems are required for a place to have the same average day and night temperatures throughout the whole year? Is such a thing ...
15
votes
6answers
3k views

Could there be strong weather on large space stations?

I'm not talking about the ISS. I'm talking about larger stations such as Bernal Spheres, O'Neil Cylinders, Stanford Tori, good old-fashioned hollowed-out asteroids, and so on. We have a sci-fi game ...
15
votes
11answers
7k views

What would we need to stop a hurricane?

In Star Trek TNG, you hear about some sort of defense back on earth that is supposed to screen out all the bad weather. In the episode "True Q," it is mentioned several times as being capable of ...
14
votes
10answers
6k views

How to prevent a desert from forming alongside a large mountain

I'm wanting to have two regions separated by a large mountain but do not want either side to become a desert. What would the conditions have to be on the desert side for this to be prevented? This is ...
14
votes
9answers
4k views

What's the worst natural disaster that could hit New York City in our lifetime? [closed]

I'm writing a post-apocalypse story that takes place in New York, mainly the city as the survivors escape the island to the outer boroughs. Anyway, living in New York all of my life, the worse that I'...
14
votes
4answers
1k views

Can whiteout/snowstorm conditions be coupled with heavy fog?

In a story I am working on, I need a scene in which one of the main characters finds himself outside in precarious weather conditions, unable to see unaided much farther out than an armlength or so. ...
14
votes
5answers
559 views

How dark can a habitable planet be?

I'm picturing a world with a permanent, dark, overcast sky, but I'm wondering how dark it can be before photosynthesis is no longer an option. It looks like there are a good number of plants that ...
13
votes
6answers
1k views

Liquid water on both sides of a tidally locked planet. Feasible?

I'm brainstorming for a rocky planet with similar mass to that of Earth's, orbiting a red dwarf star. It is tidally locked with no natural satellites, yet I'm bent on having liquid water on both sun-...
12
votes
6answers
4k views

What manner of weapons and armor would be suitable for freezing conditions in the middle ages?

In this story I'm giving a go at, humanity as a whole have been under siege from creatures that can be best described as humanoid demons. Things haven't been going well for the human race, as the ...
12
votes
3answers
2k views

Weather and temperature effects on leather armor

What exactly happens to leather armor in different environmental conditions, for example battles or long exposure to rain or desert heat? What can be done to negate or care for it?
12
votes
2answers
281 views

Thunderstorms, 24/7

There are a number of places in which cumulonimbus clouds - and therefore, thunderstorms - are likely to form, such as: Cold fronts, where masses of cold air move into hot, moist air masses Around ...
12
votes
1answer
495 views

How to make it rain men properly?

In a certain world there is a ruler who runs a very powerful country with an iron fist. A faction of oppositionists has been giving her lip and has made some mean comments implying she brings the ...
12
votes
2answers
602 views

Centralised continent, with sea/wind currents?

I'm currently designing a large scale D&D based campaign, magic is based on winds and weather coming from two points, the 'northern pole' and the 'southern pole'. Currently the "world" is a ...
12
votes
4answers
1k views

How would a “tornado-surfer” protect himself?

In analogy with a skydiver, a culture has developed an extreme sport called "tornado-surfing". Essentially, a thrillseeker hunts down supercells that might create tornadoes and lets themselves be ...