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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2
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1answer
81 views

What would happen if there was a zone of supercooled air over open ocean?

Suppose some government is testing a weather control device. The weather control device can control air temperature within a cube 40 feet to a side, centered on itself, rapidly lowering it's ...
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2answers
602 views

How would a black lightning storm work?

"If you shine a low-pressure sodium lamp on a yellow sodium flame, the flame will be black." I shamelessly stole the above text from somewhere but it whetted my curiosity. I am wondering if ...
4
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0answers
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Are these ocean currents realistic for a planet that rotates 16 times slower than Earth?

Ocean Current Map: The straight red lines are 60* North and South, and the straight blue lines are 30* North and South. The curved blue lines with an arrow represent cold currents, while the curved ...
4
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4answers
259 views

Localized snow storm

I am looking for any way to make a very localized snow fall event in the same way hail could be a very local event (and I believe summer showers could be very local too). There should be a village ...
10
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4answers
282 views

Would seasonal fungal forests be possible?

This question is inspired by a comment by PcMan Imagine you have an Earth-like planet, except it is just a little farther away and has longer days. Instead of having a tropical equator, the planet now ...
2
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2answers
50 views

How could strange energies cause massive droughts within a localized region?

The scenario: Background Let me begin by explaining the surreal parts of this scenario: essentially there is an archipelago of islands just south of Australia that have existed under the world's noses....
4
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2answers
219 views

Are the deserts in this continent realistically placed?

I have asked previously how I could create an earth-like world with as many deserts as possible in it. Based on the answers I got, I designed this continent, and asked for a reality-check, but the ...
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1answer
89 views

Causing A Snowstorm

Okay, so I have a humanoid alien villain who can cause massive windstorms. She is capable of moving at Mach speeds, and can rotate her arms and legs really fast, and stands at about 2.06 m tall, and ...
2
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2answers
93 views

What kind of atmosphere is needed for large floating organisms?

Assume you have an identical Earth-clone planet, what kind of atmosphere is required to have floating organisms? What I define as a large floating organism is something about the size of a bat, but ...
4
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1answer
60 views

How to block extreme winds on a stormy planet?

Assume that you have a planet mostly covered in water (about 89% of the surface is water). There are a few connected continents in the middle of the planet. If the rotation of the planet is slow, say ...
4
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4answers
318 views

World with two directly opposed habitable continents, one hot one cold, with significant geographical barrier between them

I'm trying to design a planet with two continents where one is always warm/hot and the other is cool/cold. The continents should be directly opposite each other (so not a pole and an equatorial one). ...
4
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1answer
77 views

What is the ideal day length for extreme weather?

This question is in reference to a previous question by TrEs-2b and SRM: I want to create a planet with a significantly longer day than Earth's. However, I was only able to find a question about a ...
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0answers
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Is it Possible to Have a Tropical Climate With a Summer Dry Season?

In my book series, the northern coast of one of my provinces is in the tropics and on the western side of its continent. However, because it is mountainous and on a relatively cold sea, I was thinking ...
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16answers
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How to avoid boats on a mainly oceanic world?

On an Earth-like planet with clustered continents and large oceans, like Pangaea, the easiest method of travel would be boats. However, I am looking to avoid humans using boats. I define a boat as ...
4
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1answer
92 views

Tidally Locked Planet with no Oceans

Picture an earth-mass, breathable atmosphere planet; tidally locked to a red dwarf; orbiting far enough out that the dayside is not scorching; and with no planet-wide liquid oceans (but probably local ...
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7answers
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Can blood form snowflakes?

In a (marginally) cursed world rains of blood are an occasional occurrence. The water in the clouds is magically transmuted into blood at the point it starts to coalesce into droplets (no need to ...
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1answer
59 views

Is my air pressure system okay? [closed]

Second question here. So in a previous question I got told to make a wind system to determine precipitation, which in turn needs and air pressure system. I've attached two images, the first is when ...
2
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1answer
39 views

How To Approach a Range of Albedo in A Given Latitude Range When Estimating Temperature?

There's a lot of information about figuring in the average albedo of a planet when calculating the base temperature for a planet. What if you want to get more granular, down to each (let's say) 10 ...
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3answers
144 views

How to minimise the size of temperate zones of an Earth like planet?

I want to create a planet similar to Earth but with narrow temperate bands between much wider tropical and polar bands. How can this be achieved? The planet must be similar to Earth and capable of ...
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2answers
272 views

Best and Worst Koppen Climate Types for Human Civilization?

I've already made a Koppen climate map of (the relevant parts of) my world (see below) and I was wondering where most of the civilization and agricultural development should arise here based on that. ...
4
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2answers
124 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
109 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 ...
6
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3answers
449 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
82 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
95 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
178 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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2answers
202 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
64 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
1k views

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 ...
2
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2answers
122 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
433 views

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 ...
12
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1answer
170 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
75 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
144 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
176 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
175 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
50 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
126 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
153 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 ...
10
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1answer
244 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
189 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
131 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
56 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
219 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 ...
3
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2answers
44 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
183 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 ...
5
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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
131 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
116 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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