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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3
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1answer
48 views

Would large enough equatorial continent produce a central desert through sheer size?

As I understand it, the deserts require a number of conditions to occur, leading to the overall decrease in precipitation. And areas around equator usually lack these. While there are some deserts ...
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1answer
54 views

How would the Weather be on a Double Planet System?

context is always important to give a good answer to such a question. So here is some data and Renders from the System. It consists of the two Planets Hela and Vesna. Hela has a Radius of 5636.492km ...
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3answers
418 views

Would a permanent rain be possible?

Would there any scientifical explanation to a permanent rain (at least 2 years) everywhere on Earth ? Climate-change ? My best explanation at this point is accelerated ice cap melting. There must be ...
3
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1answer
76 views

What tornadic wind speed would be required to destroy a reinforced masonry structure?

Tornadoes are well-known to be one of the most destructive forces on the planet, packing the capacity to practically delete small towns from the map and lay waste to billions of dollars worth of ...
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4answers
78 views

How Could A Planet With Extremely Enlarged Subtropical Zones Exist?

In my Book Series, I want there to be a vaguely Earth-sized planet called Awal with an Earth-like atmosphere. However, climate-wise, I need the subtropical climate zones in each hemisphere to cover 40%...
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3answers
164 views

Would O'Neill cylinders experience thunderstorms, if not how would you generate/simulate one?

ASSUMPTIONS The OC in question is a standard paired OC similar in size to Island 3 5 miles (8.0 km) in diameter and 20 miles (32 km) long. It is a temperate biome akin to southern France with some ...
7
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1answer
122 views

Does extreme atmospheric pressure increase or decrease the power of weather?

The world I have imagined is much like Venus, with an atmosphere at "sea level" 70 times that of Earth, and temperatures at the same altitude approaching 377 degrees Celsius - with much more ...
3
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1answer
58 views

Magical Island question part 2: How to add desert to it

Part number 1 of the question can be found here: Now I wanted to add a few things just to be on the clear side of things, my world is originally inspired by Brazil. So: On the southeast the continent ...
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7answers
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How to have a landmass the size of Great Britain have almost every single climate

I'm creating a continent which will be about the size of Great Britain (250.000 km2) and I'm creating it under certain constraints.: This continent was very powerful once upon a time, but now it is ...
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2answers
108 views

What might make one specific area of a sea calmer than the rest?

This may very well be an easily answered question, in which case I apologize for the lack of challenge, but in all honesty I’m not sure where to start in figuring this out. I have a large sea. It sits ...
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4answers
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How can I make my often-lightning-struck mesa sound like giant drums?

Premise 1: I prefer to know if it's possible to realize this without much handwaving (hence the science-based tag) but, as this is going to be in a fantasy setting, answers which make it possible with ...
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1answer
156 views

How do you develop global wind patterns for your world?

I'm trying to develop climatic maps for our countries and know that wind is a huge part of that. Our world is shaped the same as Earth, it's just a little smaller, and our axis is slightly less tilted ...
2
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1answer
68 views

Weather forecast for colossal O'Neill cylinders?

I think we can predict with great accuracy what's the weather going to be in a small O'Neill cylinder since we get to control the humidity and air flows, etc but then a tiny variation in temperature ...
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3answers
140 views

Weather in a patchwork world?

I have a homebrew D&D setting in which the Gods went insane and started battling each other en masse, wreaking havoc on the planes of existence in the process. The last surviving gods had a moment ...
4
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3answers
165 views

Where else would mountains be on this continent?

Okay fellow nerds, I am in need of assistance. I am making a fan-made map for a book series and I have run into a problem. The problem being while I love making maps (fun hobby) I am trying to ...
6
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4answers
171 views

How would technology be affected if the use fire was restricted to just very specific locations?

So, imagine you live in a very humid climate. Much more than any tropical country. Fire doesn't appear in natural circumstances or, if it does, goes out extremely quickly. It's kind of a folk tale ...
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1answer
44 views

Obliquity-Induced Hadley Cell Reversal

My planet has an axial tilt around 50° and a day length around 3 earth days. Under these conditions two things should occur: 1: There should be one large cell per hemisphere. 2: This cell should ...
18
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8answers
3k views

Is it possible for a planet to have the same seasons in both hemispheres?

Our spherical planet has two hemispheres divided at the equator. Those living in the north hemisphere experience the opposite season as those living in the south hemisphere at any given time of year. ...
3
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1answer
108 views

What is the climate like 200 years after nuclear war?

I know there would probably be an ash-based cooling period, but, how long would that last and then what happens? Is the post-apocalyptic desert even possible in a post-nuclear war world?
7
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1answer
146 views

Infinite flat earth weather patterns [closed]

The world is infinite in extent (both in area and age), with no large-scale curvature (normal mountains and such exist). The sun is infinitely far away, but has infinite size. The net effect is to ...
7
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1answer
141 views

Weather with extreme seasons

Assuming the axial tilt of the Earth was increased to roughly 30°, and the orbital eccentricity roughly doubled(0.03 as opposed to 0.016) so that the average temperature stayed the same, but the ...
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3answers
182 views

Weather and climate of Massive Grass Plains?

In my world I want a massive region (7 million mi²) to be as flat as the Great Plains. There are no trees or hills; basically it's just a grass sea. I am trying to figure out what kind of weather ...
3
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1answer
129 views

Meteorological consequences of walls reaching into the sky, enclosing a large area

Suppose we walled off a 1000 km square. These walls would be made of unobtanium (so they don't break), and have no cracks or holes that go all the way through. They are also around 15 kilometres high, ...
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3answers
53 views

Mechanism behind ocean-containing ice caps

I don't fully understand the mechanisms behind an ice cap that contains all the water in the oceans. Just to be specific, I have a planet that resembles Mars, i.e. desert at the equator, ice at poles. ...
3
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1answer
215 views

Can a commercial airliner survive a trip through a thunderstorm cloud?

A terrorist mage cast a thunderstorm spell. Unfortunately, a commercial airliner was the target of said spell, which spawned the storm right around the aircraft. The aircraft itself is a large ...
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2answers
41 views

Frequent Solar Eclipse Cycle and Its Effects [closed]

I’m trying to imagine a sci-fi/fantasy world in which a solar eclipse occurs roughly once every 3 or 4 days. The exact frequency can be arbitrary and varied, but it does need to occur often. I would ...
4
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1answer
175 views

I would appreciate your advice on the climate of my world

There are some things I don't understand. So far I have my map pretty developed but I think I made some mistakes and there are places I am not sure about. I know I made some mistakes with ocean ...
6
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8answers
2k views

How Would I Make an Oceanless World Feasible?

The planet I'm thinking of is of similar size and distance from its star relative to Earth, but it lacks oceans, instead consisting of one massive continent with a huge mountain range (reminiscent of ...
6
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3answers
127 views

Could ocean and wind currents form on a tidally heated body

The moon is similar to earth but orbits around a gas giant, the sun has ended its life cycle and so the only energy received on the moon comes from tidal interactions heating its core. On earth and ...
2
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1answer
114 views

Could Long, Dense Walls of “Megamangroves” Deflect The Deadliest of Storms?

This is the world's tallest tree--the coast redwood. It can grow as high up as 115.5 meters. Any taller, and the transportation of water in its vascular tissues would not climb all the way. But in ...
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1answer
71 views

How do I get strong storms on a slow rotator

My planet has a day length of ~52 earth hours. This means storms like hurricaines and thunderstorms will be weaker. How do I combat this and generate really strong storms and winds on a slow ...
3
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1answer
146 views

If Earth had a sideways axial tilt (like Uranus), would Earth still have tornadoes?

Imagine Earth was hit hard by some force so devastating that Earth now has an axial tilt of 90.0 degrees, a far cry from the usual 23.5 degree. The same force somehow eliminates the Moon. In my story, ...
7
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2answers
199 views

Is it realistic that mountain cultures use a different calendar than the low landers?

My fantasy setting is on a wet and humid world of innumerable islands; many of which are quite mountainous. With conditions ranging from Mediterranean to Tropical. The culture here experience only ...
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3answers
105 views

How could a portable handheld weather machine work?

Intro: As some of you may know, the character shown in this picture is none other than the Weather Wizard, one of the Flash's most dangerous adversaries. With the help of rod-like device in his hand (...
2
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1answer
38 views

Volcanic island generating its own storms

Picture this, a highly volcanic island sitting in the middle of a temperate or sub-arctic sea, the heat generated by the magma beneath the island and the volcano heats the air enough to generate a ...
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1answer
82 views

What practical considrations would a world forever trapped in cold, snow, and ice face? [closed]

I'm building a world - or rather 3 interconnected worlds of cold and ice. The idea is worlds in a snowglobe because of a mis-worded wish of "I wish everything would stay the same forever." The first ...
2
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3answers
169 views

Could an enormous structure be used to attract rain by acting as an artificial mountain?

If it were possible to build a giant geodesic dome tens of miles in diameter, what effect would it have on nearby weather? If built in an arid climate like the Sahara or Australia, would it be ...
1
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1answer
64 views

How would X-Seed 4000(s) affect the weather?

So, the X-Seed 4000 (https://en.wikipedia.org/wiki/X-Seed_4000) is a rather large lad. The tallest building ever fully realized. Let's just say that, in five decades, they decide to actually build ...
4
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3answers
761 views

Is there any way for humanity to cope with perpetual acid rains?

All of a sudden, overnight, abruptly, weather forecast guys go on strikes... everywhere is raining nitric acid non stop so that on average the amount reported is 100mm and the pH level is 3 ...
2
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1answer
517 views

Building creatures with a mist-like atmosphere [closed]

What would creatures look like if they evolve on a world that was constantly covered in mist. Assume the planet is much like Earth, it has 7 continents, various habitat, and a nearby moon, but the ...
6
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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 ...
20
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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
309 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
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1answer
288 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
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2answers
803 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 ...
4
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2answers
249 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°...
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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
457 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 ...
6
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3answers
182 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.
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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 ...

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