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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5
votes
4answers
1k views

Could a planet have a single source of wind?

I was creating a map of the air currents in my world, working back from the climates of the land (which I had already determined). (The world consists of one continent, similar to Pangea, with empty ...
21
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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 ...
9
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4answers
296 views

If we dug a really big hole on Mars, how long would it last?

How long will a 400 km wide 30 km deep pit (trench or crater) with a relatively shallow (for stability) gradient of slope of 20 degrees from the edge to the surface of the planets crust be expected to ...
5
votes
1answer
91 views

What would happen if ocean currents suddenly stopped (or changed)?

I'm thinking about a device (in a story I'm writing) that could control ocean currents, and I'm wondering how it could be weaponized. For example, if an ocean current was suddenly stopped, what might ...
7
votes
2answers
712 views

Permanent Mist/Fog in an area [duplicate]

How could a region have a (semi-) permanent mist/fog? As close to natural as possible but possible enhancements are an option like: Technological : can both be chemical or mechanical but should ...
36
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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 ...
4
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2answers
235 views

How could a human society survive in areas with average annual temperatures below -30°C?

I ask this question because in my fictional world, I want to create extremely cold, populated areas, especially in Northernmost areas, but I noticed that in our real world, regions with less than -30°...
24
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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 ...
10
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3answers
259 views

Hurricane-force winds or gentle breezes in an O'Neill Cylinder?

Let's consider an O'Neill cylinder with a radius of 3.2km and length of 20km. In the classic O'Neill design, we have three large axis-aligned windows in the shell, alternating between purlins of ...
7
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4answers
1k views

How would a force field dome over a city affect the weather?

I put a force field dome over my city. How would that affect the weather inside the city, and outside it? Specification of the city: 10 × 40 km on the surface 1 km in height dome would be 2 to 3 km ...
6
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3answers
172 views

Can Shade Balls be used to stop hurricanes?

I think it would make sense for hurricanes to be combatted using shade balls to block the evaporation of the ocean into the storm. What would we need to stop a hurricane? Info on shade balls.
15
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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 ...
9
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13answers
5k views

What could cause sudden localized atmospheric pressure change?

Picture a band of happy campers, literal campers, sitting around some fires. Suddenly they feel their inner-ear "filling up" and after mere instants the ears begin popping, as if they were inside a ...
11
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6answers
4k views

How can a desert have high humidity?

Deserts are known to be hot and dry places. In my desert, I need a high humidity in the air. It doesn't have to be near the ground, but at least the atmosphere below 1 km should have a layer of high ...
5
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4answers
207 views

Can a Jupiter-Like Gas Giant Have Deep, Dark Storms?

For this question, I was inspired by the following image of the "Jupiter Abyss": What I want to know is, can a Jupiter-like gas giant have thousands of giant black storms, kind of like what I've ...
0
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3answers
263 views

Once a year, swords rain from the sky. How does this change the world? [closed]

Assuming an earth-like planet, how would annual, hour-long, literal bladestorms transform: ecology, geology, and human society? Assuming the first one happens tomorrow, what changes in the next few ...
3
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2answers
116 views

Would this setup of a terraformed moon hold up?

[Edits added in italic] BACKGROUND A few thousand years from now the moon has become one of many habitable places in the solar system. Economy, constant growing knowledge and human will made drastic ...
3
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2answers
256 views

What would the temperatures on a terraformed moon be like?

In the far future the moon is terraformed and maintains earth-like conditions for people to walk around freely. Gravity is a 6th of earth's. We assume the atmosphere is "well-functioning for human ...
3
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3answers
327 views

The Earth-like world's been shrouded by darkness. For how long would the civilization be able survive?

In this setting, the Continent has been hit by several catastrophes, caused by the inner workings of planet's tectonics, and the eruption of a volcano far on the other side of the world. Gravest of ...
6
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2answers
160 views

A semi perpetual gloomy climate is possible?

I'd like to know if a climate with snowy and gloomy winters and rainy and cloudy summers is possible. Because the climate of Russia in summer is sunny enough and the Icelandic ones isn't so snowy. So ...
11
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5answers
1k views

What would be the seasonal impact on the indoor climate of a giant dome habitation? [closed]

I am writing about a city inside a dome which protects it from an inhospitable environment. I would like the dome to have it's own self-regulating ecosystem, at least enough to provide rainfall ...
-1
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3answers
173 views

How would the weather act if you blocked sunlight?

Consider a large flat disc, at least two thousand miles in diameter. It is thin and has comparatively little weight or mass, but it is also opaque and does not let any light through. This flat disc ...
3
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3answers
185 views

What would the weather be like after the world is shaded by an immense object?

I have a situation in my imaginary setting, and I am specifically interested in how this situation would affect the weather. The situation is as follows: Positioned above a large landmass of my ...
30
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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 ...
9
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4answers
2k views

World of (nearly) identical snowflakes

In a lab at Caltech Ken Libbrecht has been simulating snowflake formation and under absurdly exact laboratory conditions, they have been able to create almost identical snowflakes. Clearly, in the ...
26
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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 ...
2
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1answer
119 views

What's the climate consequences of a planet with these characteristics?

I'm designing a new planet, but I'm having some troubles figuring out the climate. The planet's rotation axis is at a 45° angle relative to its orbital plane, and each rotation takes 24h. The planet'...
9
votes
8answers
1k views

Desert poles but arctic equators; trying to find out if specific way is possible

I'm trying to create a planet with a hot desert north and south pole but a cold equator. Is this possible? and if so how? And if it's heavily related to space how would night and day work on this ...
6
votes
1answer
141 views

What set of circumstances are most likely to lead to a planet with a climate resembling the Great Plains?

Part of my story will be set on a planet where a culture similar to that of the Old West has arisen - cowboys, frontier towns, homesteaders, etc. In order to make this development more plausible, I ...
4
votes
1answer
120 views

Cold Weather Patterns

I’m working on a world with a mild but near constant winter. This weather pattern moves down the latitude and causes deep snows and some ice at worst in the mountains to heavy monsoons in tropic ...
6
votes
1answer
189 views

Is it possible to have a planet with earth-like mass but double the atmospheric pressure?

I'm no scientist and my poor brain box is on its last legs; I was wondering if any of you smart beans out there would be able to help me figure this out? Here are the specs of my system; Kereiol is a ...
-5
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2answers
239 views

How to stop a tornado from hitting a major city… [closed]

There are many of ways this could have been stopped. I want to hear your answers.....
12
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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 ...
5
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2answers
99 views

How would a supernaturally heated caldera bay affect the local climate?

A supernatural geological event occurred and created a huge caldera-like formation on the coast of a region similar to Scotland. Over time the caldera filled with water and became a bay surrounded by ...
4
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3answers
273 views

Planet with Gridlike Seas

An Earth analog had been modified by an advanced species to have saltwater seas in an interconnected grid across the planet's surface. The planet has no true oceans and only the large grid network of ...
6
votes
3answers
382 views

Are there semi plausible scenarios where Nuclear Winter could last a thousand years or trigger an ice age?

Trying to develop a fictional scenario with a 'believable' theory as to how a Nuclear War and resulting Nuclear Winter could turn into a millennial scale ice age. By 'believable', I mean that it ...
9
votes
4answers
428 views

Vertical cyclones in a rotating space habitat

A common, matter-efficient, science-fiction habitat is a hollow cylinder or ring in space that is spun to simulate the pull of gravity on its interior surface. While for most purposes this artificial ...
6
votes
4answers
5k views

What needs to happen to stop a tornado?

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 ...
7
votes
3answers
730 views

Effects of gravity upon weather?

So there are loads of things that are taken into account with weather from geology to water currents to axial tilt etc. But i am wondering what the effects would be on weather on planets with varying ...
32
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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 ...
19
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2answers
924 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 ...
6
votes
1answer
154 views

Effect of slow rotation on winds

Given a rotation rate comparable to Venus & axial tilt like Uranus (about 90deg), what should I expect for atmospheric winds? I anticipate a stratospheric wind only, dropping to the surface at or ...
4
votes
2answers
215 views

Snow on a low-gravity, high-pressure world

Disclaimer: I am not a meteorologist. Snow forms when supercooled water droplets nucleate onto particles in the atmosphere. After forming, they grow further by both tumbling around within the cloud ...
2
votes
4answers
430 views

What would a planet be like if it had no oceans, just large lakes? Would it be habitable?

I have a planet I'm working on which is inhabited by war tribes. They fight all the time. They can hunt and farm a little bit but they mainly fight to the death. There are billions of these beings on ...
-1
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2answers
56 views

Focusing solar irradiation to create equatorial conditions at the poles [closed]

As I understand it, the majority of thermal energy on Earth comes as a by-product of absorbing radiant solar energy. Since the equator gets hit by rays which are almost perpendicular to the surface of ...
3
votes
2answers
105 views

What would the climate/environments be like on a planet covered in small crater lakes and seas? [closed]

Imagine an Earth-like planet with no major oceans, all the water has collected into circular craters from impacts that are no longer occurring. Let's say the planet is covered evenly with 50% water ...
10
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3answers
532 views

What adaptations would allow standard fantasy dwarves to survive in the desert?

Recently I was talking with a friend of mine on fantasy stuffens. I brought up that its interesting that dwarves are rarely in the desert and he immediately listed reasons why the dwarf build is bad ...
6
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1answer
1k views

Can rocky hills similar to the Scottish highlands be located next to a bog?

I've written about these rocky hills with short grass, gravel, shrubs, and big boulders. At the bottom of one of the hills is a big bog. Basically I've designed some buildings to be sticking out of ...
4
votes
2answers
274 views

How to explain day is 10 times as bright but no warmer?

Set at the present day Earth, the daylight on average is ten times as bright as today, approximately 111,000 lux at noon for example and subject to geographic and the air quality etc. I am looking for ...