Questions tagged [weather]

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0answers
92 views

What allows this tornado to form in a frying pan?

I have just seen this video here where a mini tornado has formed in a frying pan: https://www.youtube.com/watch?v=6CJ-8ze2FjE Does anyone know how this happens or where I can find an explanation?
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2answers
114 views

How does the Extreme Heat of a Lightning Bolt not Kill Anyone?

Ok so, according to various different online sources, a single bolt of lightning is capable of raising the temperature of the air it rips through to... ummmmm... 50,000 degrees Fahrenheit? What? That'...
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1answer
48 views

Modelling sky type as an area light source [closed]

I have a trouble understanding the mapping going on here. The author asserts that sky types can be modelled as follow : The first one appears to represent a clear sky view, the second is more of an ...
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0answers
16 views

How does air pressure affect the ability to create a frequency and which frequency is least attenuated

From $I=ξ^2ω^2cρ$ where ξ is the particle displacement, ω the frequency, c the speed of sound and ρ the density of the medium (1, 2), I understand that for the same frequency and amplitude the sound ...
6
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1answer
188 views

Is the downforce of rain on airplanes negligible?

Is the downward pressure exerted by raindrops in even a strong storm on a lightweight aircraft negligible? Someone better informed may likely improve the following reasoning, cobbled together from ...
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1answer
34 views

Hurricane - trajectory in a logarithmic spiral

Let $f : [0,\infty[ \longrightarrow [0,\infty[$ be a given function and consider a particle on the plane such that the particle starts at point $p_0$ at time $t=0$, its trajectory $t \mapsto p_t $ is ...
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1answer
20 views

Understanding Convectional Rainfall

Consider the following explanation of convectional rainfall given in a VII grade textbook. When air comes in contact with the hot surface of the earth, it gets heated, becomes light and rises in the ...
4
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1answer
134 views

Why doesn't lightning stop when it starts raining?

According to my understanding, lightning happens because the clouds get charged due to friction from the moving clouds and the ground gets polarized by the nearby charged clouds. And the two opposite ...
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0answers
32 views

What causes Saturn's hexagon hurricane? [duplicate]

Recently, Tien Nguyen JPL Fellow - Chief Engineer at NASA Jet Propulsion Laboratory, did share this photo that says "Cassini catches an awesome glimpse of Saturn’s north pole hurricane" I ...
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2answers
90 views

Is weather a phenomenon impacted by quantum randomness?

Im trying to find phenomena that impact our everyday lives that are subject to quantum randomness. And I was wondering whether weather might be one of them. Can an electron behaving slightly ...
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1answer
155 views

Examples of phase transition nuclei whose dynamics impede their own growth?

I recently asked a question over on the Earth Science stack exchange about cumulus cloud formation from (roughly) point sources. These points can form around the same time across large areas, such as ...
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0answers
22 views

Do tidal forces create atmospheric jet streams?

Earth's large-scale wind patterns (a.k.a. jet streams) are generally attributed to "differential heating" by the sun. But the large-scale patterns in Earth's oceans (a.k.a. tides and tidal ...
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1answer
4k views

What did I just photograph? (rainbow way out of place)

I just captured the following two pictures. Straight above me, almost directly above, was a rainbow, about 120 degrees of it were visible. The thing is, the sun was completely out, low on the horizon ...
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1answer
20 views

What would be the most UV resistant rubber color?

I'm looking for the longest lasting speargun bands. They come in a variety of colors so I'm wondering if a certain color of rubber would help them last longer. They will be exposed to a lot of ...
3
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3answers
261 views

Why don't clouds gradually evaporate and never come down as rain?

Clouds are present in the troposphere . So the radiation from the Sun first needs to pass this layer of the atmosphere to come down which means that the clouds above are constantly being radiated from ...
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1answer
34 views

I know the temperature and air pressure at specific height, can I estimate the temperature at different height?

I know what the temperature is at a specific height, and I know the air pressure there. Is it possible to estimate the temperature at a different height? (It's a public weather station, it has an API, ...
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2answers
85 views

Why are the tops of mountains covered with snow, but not at the bottom? [duplicate]

Why are the tops of mountains covered with snow, but not at the bottom? There is always snow even on high peaks in very hot areas. It has to be very cold at the top of the mountaintop so that the snow ...
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0answers
63 views

Cloud got trapped over Ayu Dag mountain in Crimea

Personally I was impressed by observing a cloud got trapped over Ayu Dag mountain in Crimea, Russia on 7th April 2021. It is said that it was possible to see the cloud during a few hours, then it ...
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0answers
31 views

Does cold dry air rich in static electricity cause the Hessdalen lights in Norway?

I have read many articles on the Hessdalen lights ( which many professional scientists think are plasmas). https://en.wikipedia.org/wiki/Hessdalen_lights I have concluded that cold dry air rich in ...
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0answers
129 views

Are clouds heavier than air?

Clouds are gatherings of water droplets floating in the air. Water droplets above a given size fall down as rain. But what about the water droplets forming the cloud---aren't they also heavier than ...
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8answers
7k views

Why do small patches of snow remain on the ground many days or weeks after all the other snow has melted?

I often notice small patches of snow that remain on the ground in seemingly random locations, many days or even weeks after all other snow in an area has melted, and even when temperatures have been ...
27
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5answers
6k views

Why is the air inside an igloo warmer than its outside?

An igloo is not only used as shelter from snow but also to keep warm. Perhaps, a simple igloo is made of ice and nothing else still, why is its interior warmer than the exterior?
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3answers
320 views

Is it true that there would be no snow without dust?

I've heard from my friend that snow flake forms around the tiny dust, flying in the atmosphere. I have not found any reliable source to confirm or reject it, that's why asking here. Is that always ...
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2answers
38 views

Why water vapors form over the surface of a water body in the morning?

I live near equator region of Earth. During winters specifically, I see water vapors forming over the surface of the water body in the morning. Why do they form?
27
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1answer
477 views

What are these strange rays in the sky?

While driving, I noticed the sky had weird rays that appeared converge at some point on the horizon. I took a few pictures in hopes I could figure out what they were. There was a storm coming from ...
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1answer
63 views

Why isn't thunder muted or softened by rain drops?

I watched a documentary showing how NASA applied water droplets to absorb the huge amount of sound energy when the rocket is ignited at launch. So, how come billions of rain drops don't seem to mute ...
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1answer
277 views

Can pressure gradient force be balanced by Coriolis force?

I was learning about wind from my class textbook. In that there is first a description of forces affecting the velocity and direction of wind followed by that is geostrophic wind. My question is: At ...
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2answers
215 views

Explanation for an unexpected rainbow

Yesterday, I observed an unexpected rainbow in the sky. There was no forecast for rain, neither was it raining anywhere nearby. I have been trying to find an explanation but don't seem to find any. ...
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0answers
156 views

Does level of pollution determine if a rainbow will be formed? [closed]

Today I saw a rainbow after almost a decade. I live in Noida (a city) in India. Most people I know believe that: we don't see rainbows nowadays because of pollution and now after nearly 3 months since ...
2
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2answers
157 views

Why do my lights become brighter during a thunderstorm?

Today, during a thunderstorm, the lamps in the room suddenly flickered and then gradually became brighter in less than a second. The lamps remained brighter than normal for a few seconds before ...
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0answers
30 views

Best Resources for Learning Mathematics Behind Weather Forecasting

Anyone know what the standard texts and papers are for understanding how modern ie numerical weather forecasting is done?
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0answers
91 views

Is there a connection between bathtub drains and tornados?

In the MIT fluid videos (link with timestamp), I heard that a tornado is essentially the same physics as a bathtub drain, but upside down. It doesn't look that way to me. It looks like both fluids ...
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0answers
37 views

Bottom orbital velocity during a typical typhoon

What is the wave orbital velocity generated during a typhoon? I cannot find direct measurements, so hoping to find a way to calculate this. In other words: How do I get from wind speeds of 12 on the ...
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0answers
114 views

Why do rain clouds form in the first place?

Thought process leading to the question It's cold over here in India and I noticed that while breathing out some cloudy thing comes out of my mouth (I found it is called EBC (Exhaled Breathe ...
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3answers
6k views

Why are rain clouds darker?

I was taught in school that clouds are white due to the scattering of light. Since all rays are reflected it appears as white. But I am wondering about rain clouds. Why are rain clouds darker?
3
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1answer
66 views

Is there a molecular diffusion component to wind?

I'm thinking of vapor pressure from terrestrial water: A highly evaporating area in the ocean creates a volume of high relative humidity, the vapor tends to move to less humid air and by molecular ...
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2answers
135 views

Physical meaning of angular spectrum

I have been going through the paper Diffraction from an irregular screen with applications to ionospheric problems. H.G. Booker, J.A. Ratcliffe and D.H. Shinn. Philos. Trans. Royal Soc. A 242, 579 ...
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1answer
75 views

Why doesn't it rain every night as humid air cools?

When atmospheric relative humidity (RH) exceeds 100%, water must condense out of the air. We typically see this as rainfall. In North-Eastern U.S. summers it is common for daytime air to reach above ...
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2answers
107 views

Why we have not eliminated hurricanes and tornadoes? [closed]

Hurricanes are caused by too much warm humidity in the air. When this humid air encounters cold air, the humidity condenses to water which forms a low pressure region of air. The low pressure region ...
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1answer
95 views

Is a typhoon/hurricane also affected by Magnus Effect?

We all know that typhoons move as they rotate.
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3answers
115 views

On the Coriolis effect and weather

I learned in classical mechanics that the Coriolis Effect curves everything with speed to the right in the northern hemisphere and to the left in the southern hemisphere, my question is then why ...
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8answers
9k views

Why aren't rainbows blurred-out into nothing after they are produced?

I understand how a prism works and how a single raindrop can scatter white light into a rainbow, but it seems to me that in normal atmospheric conditions, we should not be able to see rainbows. When ...
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1answer
113 views

Is it possible to destroy a typhoon by bombs?

When a typhoon is still on the ocean, if a big bomb or several bombs are thrown to it, maybe at the eye, or at the part where the wind circles fastest, can the bomb destroy the typhoon?
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1answer
28 views

How do I approximate indoor temperature of a non-ventilated building?

How do I obtain a good approximate of the indoor temperature of a non-ventilated building (i.e., with no air conditioning) if I know the outside temperature (and possibly other factors, like humidity)?...
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3answers
68 views

Blowing smoke out of the clean air - can someone explain?

Yesterday my wife and I were out walking. The weather was cloudy and humid (it had been raining a few hours before). Around 15 C. Suddenly, with no apparent reason, both of us had smoke coming out ...
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2answers
68 views

Exact mode of evaporation

I am having a doubt regarding what is the exact mechanism of cooling during evaporation. At one place it is said that as surface water molecules evaporate it takes heat from surroundings and hence ...
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0answers
18 views

What are the implications of a warmer earth for hurricanes by 2100?

The main magic number is the surface sea water temperature. Above, I think 27 C the warm, moist air provides more energy that the storm uses. This is why the hurricane season is late summer into ...
3
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1answer
147 views

Is it possible to find dry ice crystals lying around the base in Antarctica?

Dry ice sublimates at -78.5°C, while the lowest temperature registered is about -89.2°C around the Vostok station in Antarctica. Imagine a person living on that station on that day (or night, since it ...
2
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1answer
150 views

When the barometer drops, my well level seems to rise - how?

I have a deep water well, with a length of 1/4" drip tubing, open at the bottom, taped to the pump 180' down. The other end of the tubing is connected to a gauge pressure sensor in the cabinet of my ...
3
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1answer
1k views

Why does high pressure cause clear skies?

In high-pressure areas, air falls, but why does high pressure leads to clear, sunny skies?