Questions tagged [weather]

The tag has no usage guidance.

Filter by
Sorted by
Tagged with
0
votes
0answers
26 views

Calculate Roughness of Water with Weather Data?

I'm trying to calculate the roughness (in regards to rowing/boating, so white capping waves would be very rough, while glass-like water would be no roughness) of a body of water given the weather data ...
1
vote
0answers
32 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 ...
2
votes
0answers
104 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 ...
38
votes
3answers
5k 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
votes
1answer
56 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 ...
0
votes
2answers
58 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 ...
2
votes
1answer
67 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 ...
0
votes
0answers
13 views

Local and convective acceleration in a hurricane

I have spent some time thinking about (well, "procrastinating about") local and convective accelerations inside a hurricane. Such as here or in a static version (the image is from windy.com ): It is ...
-3
votes
2answers
98 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 ...
0
votes
0answers
31 views

Why won't the cloud be totally separated after moving?

I want to ask that why won't the cloud be totally separated after moving? Today, i sit on the ground and look the cloud moving in the sky, and i think The wind is blowing the cloud ,so the cloud can ...
1
vote
1answer
41 views

Is a typhoon/hurricane also affected by Magnus Effect?

We all know that typhoons move as they rotate.
1
vote
3answers
58 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 ...
30
votes
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 ...
-1
votes
1answer
69 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?
0
votes
0answers
29 views

Water freezing pressures

So say we have two bottles that are each a liter in size, exactly the same. Let's not get into thickness or chemical makeup of the plastic that can be considered insulation. They both have caps on. ...
0
votes
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)?...
0
votes
3answers
54 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 ...
0
votes
2answers
57 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 ...
0
votes
0answers
15 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
votes
1answer
132 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
votes
1answer
59 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
votes
1answer
489 views

Why does high pressure cause clear skies?

In high-pressure areas, air falls, but why does high pressure leads to clear, sunny skies?
2
votes
2answers
68 views

What exactly is the time step in weather predictions?

The question basically says it all. I am confused as to what the 'time step' in weather prediction signifies-- is it the time interval between each measurement of the initial condition? Or is it the ...
1
vote
2answers
40 views

What kind of outdoor weather is ideal for condensing moisture that's in air?

What kind of outdoor weather is ideal for condensing moisture that's in air? Temperature, humidity? Does condensation increase the more difference in temperatures there is?
0
votes
1answer
79 views

How do frogs and fish rain? [closed]

I saw a documentary about the rain of frogs and fish in certain areas due to water sprouts sucking them up and causing rain of frogs and fish (pretty large ones) hundreds of miles away. But how is it ...
1
vote
2answers
462 views

Why are clouds lighter than the sky during the day but darker at night

This is probably a very basic question but I couldn't find a good answer to it, most search results are about rain clouds or clouds appearing red at night (something I've never seen except for during ...
11
votes
1answer
245 views

Why do random slabs stay dry in the rain? [closed]

The image below shows the slabbed area I can see from my work window Whenever it rains some of the slabs stay dry however, it is never consistent which ones. Can anyone explain why this happens to ...
-5
votes
1answer
81 views

if you shoot rpg in eye hurricane, destory it? [closed]

I been think way to save people by destroy the hurricane.
41
votes
5answers
8k views

Why aren't rainbows more common?

Why are rainbows relatively rare? On any given day, there are billions of water drops in the air of varying sizes and dispersions, all of which light is passing through and refracting. What physical ...
0
votes
1answer
42 views

Is it sufficient to consider a small part of a system (without potential energy sources which can be released) to determine if it's chaotic?

The world around us abounds with chaotic systems: dripping taps (when a certain dripping rate is reached the dripping becomes irregular, which can be seen in this old but very entertaining video, ...
0
votes
1answer
23 views

Wind direction affecting temperature,

I am working on a paper for a Graduate School class and I wonder how can I create an experiment that shows how wind direction affects temperatures? I understand the concept myself however I want to ...
0
votes
1answer
55 views

What causes the perceived intensity of the sun to change on a short timescale?

I was inspired by this question to ask, what causes the "beating down" feeling of the sun to vary day to day? While the linked post explains why the sun feels hotter in the summer than in the winter, ...
1
vote
1answer
29 views

Human body water storage effects on weather patterns

There are 7.614 billion humans and counting. On average a human being consists of 60% water. With that water being locked away from natural circulation for an average of 80 years. Are there any ...
0
votes
1answer
37 views

How to know wind speed, given the force

I'm doing a game that is set in a desert and there are sand storms that occur periodically. What I've done is very basic and far from realistic, which is ...
0
votes
0answers
178 views

Calculate Height of Ocean Tides if Earth Had a Larger/Smaller Radius

For context, I'm coming at this question from the Worldbuilding stackexchange, where I've posted a related question. I'm not a physicist or scientist by training, so if I make any glaring errors, ...
2
votes
2answers
92 views

Icy roads while the temperature is above 0 Celsius?

The temperature last night in my suburb and in Montreal was 4 Celsius at 9 P.M. . The snow and rain of the day had melted and the roads were damp but not icy. This morning at 5 A.M, the temperature ...
3
votes
1answer
510 views

How do convective clouds form?

What are necessary conditions to form convective clouds with their flat cloud base, like this one: I know that convective instalibity at the ground is at start of the process, but I have realized ...
0
votes
2answers
56 views

Why does cooling down result in a decrease in density?

In chapter one of the textbook by AC Phillips, we find "... as the temperature fell, the density of the universe became too low for the neutrinos to interact effectively with matter..." This doesn't ...
3
votes
1answer
475 views

Why do we feel hot when temperature is relatively high even though it might be lower than our normal body temperature

This question popped into my head while studying simple thermodynamics. Let's say the air temperature outside is 30 degrees Celsius/ 86 fahrenheit, which is relatively high to the average, even though ...
-1
votes
1answer
53 views

Sun distance, temperature changes

During winter, given that over a few days the earth is basically the same distance from the sun, why can there be such a significant drop in temperature in just one or two days that have equally ...
3
votes
0answers
103 views

Why don't two air masses just mix in the atmosphere?

In weather fronts, two air masses of different temperature, density etc. meet and one just moves over or under the other. Why do these two just mix together? What is the physical mechanism that ...
5
votes
0answers
53 views

What is this line on water? [duplicate]

What is this line on water? What causes this difference in appearance? I often see it on lakes. Not sure if it appears in the sea too.
5
votes
1answer
550 views

Does fog clean the air of fine dust

When fog forms, the air is usually saturated with moisture. Thus, small droplets form and creates fog. Suspended fine dust can serve as condensation nuclei during the formation of fog. So my question ...
1
vote
3answers
7k views

Why is it hot before raining?

What causes the temperature hike before a rain? I have heard explanations like one that says as the moisture rises, you sweat more. Can somebody provide a more scientific explanation for this.
2
votes
3answers
3k views

If I shoot into a hurricane, can the bullet come back and hit me?

Are the winds strong enough to turn a bullet around and launch it back towards me? I'm (incorrectly) assuming there's no debris to bounce off of; I just want to know if the winds are strong enough.
2
votes
1answer
292 views

What's the point of normalizing air pressure in the weather report?

If I were to check the weather report on a typical day where I live I would probably see that the air pressure is something like 101kPa. I understand that this has been normalized to sea-level. In ...
-3
votes
2answers
70 views

Tornado vs sound speed

A tornado can be faster than sound, on Earth? Please explain as for a 6 years old (I am not the one interested in tornadoes).
0
votes
0answers
36 views

Large circular distribution of clouds

I've just noticed a strange circular pattern of clouds, above Netherlands, in a weather forecast website: This image was taken from the website around 11h30, and it was the frame from 9h45 (CET). Is ...
34
votes
3answers
8k views

Why does snow stay after a snowfall?

I have just experienced a snowfall and I am not so clear on how it works. Three days after a short day of snowfall, and having 2 min | 17 max degrees Celsius, full sunny scarcely cloudy each day, ...
1
vote
1answer
2k views

Noise heard simultaneously with lightning

During a recent thunderstorm in an urban area, I saw lightning strike within about half a mile, estimated as such because I heard the thunder about 2 seconds after I saw the strike. What surprised me ...