# Questions tagged [meteorology]

The study of how the earth's atmosphere works, including weather forecasting. Use this tag for questions about the earth's weather. When asking questions specifically about the atmosphere, also include the [atmosphere] tag.

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7 views

### Found a tooth or crustacean claw? Can anyone please identify it?

Found it on the sand near Destin, Florida. Thought it was a shark tooth at first but I am second guessing. It is hollow and white. ]2
46 views

### How much would 5 gigatons of methane warm the atmosphere compared to 5 gigatons of CO2 if both were released in one go?

I don't know much about science, I'm just curious about how much warming a certain amount of CH4 would cause compared to a similar amount of CO2 (both 5 GtC). I'm sorry if the question sounded a bit ...
5k views

### Ways to make a “How hard is it raining?” detector for personal use?

Is there a consensus on the "heaviness" of rain? and Relationship between Probability of Precipitation and Predicted Amount of Rain remind me of a gedankenexperiment of mine. I like to ...
145 views

### Is there a consensus on the “heaviness” of rain?

As part of the home dashboard I am developing, I get information about incoming rain. It is given in mm/min. Is there a consensus on the precipitation rate that is called "light rain", or &...
54 views

### Does storm seasonality vary with latitude?

Anecdotally, where I live in northern Europe, the weather seems to be stormier in winter, and this seems to be backed up by hard data. For example, https://www.sciencedirect.com/science/article/pii/...
3k views

### Are there some places near the equator that are hottest in their winter and some that are hottest in their summer? Is there a map of this?

Under this answer there's a comment: I am not aware of any location having its hottest temperature in winter... and for mid-to-polar latitude folks specifically we first learn that our summer is the ...
117 views

### How is a weather forecast really done?

I am trying to understand the concrete process of how a meteorologist at a weather forecast office produces the different types of weather forecasts. I understand how numerical weather models work, ...
608 views

### Why do clouds dissipate when mixing with dry air?

So if dry air is just low humidity, meaning it has the capacity to hold more water vapour, it should make sense that the water droplets from the clouds will just evaporate and fill that dry air with ...
93 views

### The Pacific Northwest is about to endure the hottest temperatures in recorded history. What is the atmospheric setup causing it?

This is going to blow the July 2009 heat out of the water and into geostationary orbit. Dew points will also be high, between 17-20 Celsius. This goes beyond Arizona-during-the-monsoon-heat and into ...
39 views

### Why does the current warm spell in the Pacific Northwest include high, thin clouds?

I've noticed this during summers (lived here since birth). Sometimes there will be cloudless blue skies, other times when it gets warm there will be a layer of thin clouds, often with higher humidity ...
28 views

### Can a lightning strike ionise the material it strikes?

I know lightning strikes ionise the air, but I'm looking into geology, specifically amethyst, and found that it gets its colour partially from trivalent iron, iron(III), Fe 3+, whatever you want to ...
40 views

### Find optimum number and location of rain gauges

Is there any recommended method for finding the optimum number and location of rain gauges over a region based on the data from existing rain gauges. There is one Isohyetal method that does not give ...
77 views

### Why do clouds sometimes form in “plumes”?

When I started exploring GOES satellite images of cloud cover (such as this), I noticed clouds could form from "plumes." That is, large clouds could sometimes form by billowing up from one ...
40 views

### If methane is 120x more powerful that CO2 in the short term , how much warming would 50 Gt of methane cause? [closed]

I'm trying to learn how radiative forcing works, how the warming lag works? I found this old model: http://climatemodels.uchicago.edu/slugulator/slugulator.html Is it accurate? Can someone tell me ...
392 views

### Do wind predictions have confidence scores?

I’m a sailing captain in training and my community members asked about confidence in wind predictions. They were unhappy with the large variation between different wind predictions. The speed and ...
32 views

### What effect would a slowdown of the AMOC have in particular on North America's climate/weather?

From what I know so far, a slowdown/shutdown in the gulf stream would cause climate change to run counter to the way that it would normally progress (i.e. poles warming faster than the tropics.) Warm ...
47 views

### Why are all the variables ( DRY_DEP_FLUX and WET_DEP_FLUX) zero in a wrf model output in all the time steps

I am working on WRF_GHG, I would like to calculate dry and wet deposition in the dry and wet seasons for CO2 and CH4 gases. However, when I check the wrf output, I see that all the variables (...
47 views

### How does the jet stream affect weather in Europe?

I researched how mid lattitude cyclones form and found it has to do with the jet stream, which is above the polar front. The pressure difference between the warm and cold air causes a pressure ...
51 views

### Can Cirrocumulus and Cirrostratus appear at the same time?

I see cirrocumulus fading away in the front and bunch of cirrostratus in the back. However, I was taught that cirrocumulus appear when the upper atmosphere is unstable while cirrostratus appear when ...
130 views

### Why do 30% of all typhoons in the western north pacific (WNP) affect Taiwan?

A 300-Year Typhoon Record in Taiwan and the Relationship with Solar Activity (also here) shows that about 30% of all typhoons in the western north pacific (WNP) affect Taiwan. (Author's home page) I'm ...
32 views

### Is there any open source, stochastic rain forecast data available for the UK?

I'm sometimes frustrated by publicly available precipitation forecasts, such as those offered by the Met Office or Google. If I understand these forecasts correctly, they tell me: The expected volume ...
69 views

### Some website or institute with integrated statistics on forecasting the occurrence of rainbows

I am a lay person in meteorology, maybe this is not the right place for my question, but I would like to ask then. My question is simple: is there a website or institute that has integrated statistics ...
77 views

### Is it possible to detect Coriolis effect using a Wind Rose?

I once learned in high school that the area where I used to live experiences the Coriolis effects of the air movement above the city. I never paid attention to this before, but I recently heard about ...
118 views

### Cone of uncertainty in cyclones

Whenever I look up the track of a cyclone on the map, I always notice that the cone of uncertainty bulges as it moves towards land/ target. I have inserted two images to show you what I mean, you ...
123 views

### Why are clouds outlining the southeastern United States?

While watching the Starlink 25 launch earlier this month, I noticed that the Florida peninsula seemed to be nicely outlined by clouds. Pulling up satellite imagery from that time showed that my ...
58 views

### How to find the top level of the planetary boundary layer in WRF?

I am working on WRF_Chem, I would like to calculate the concentration of CO2 just in the Planetary boundary layer(I mean, I want to calculate CO2 from surface to top of PBL).in WRF How can I calculate ...
4k views

### Why are mornings cooler than nights?

In the morning, Google shows the temperature from four or five hours ago (around 2:00 a.m.). But then I update the report, and I get the temperature slightly lower than before. Why is the temperature ...
43 views

### How are weather intensity scales created?

I am interested in the development of scales to measure extreme weather. For example, the Enhanced Fujita Scale for measuring the intensity of tornadoes, etc. How were they created? OK sure, I know ...
124 views

529 views

### Why are January and February the coldest months although 21 December is the shortest day? [duplicate]

My question deals with the northern hemisphere only, obviously. It seems to me that January and February are the coldest months of the year. Water temperature is even more 'retarded': the seas are ...
75 views

### How to calculate the specific humidity based on the saturated specific humidity?

I am using ERA5 data to drive the land surface model. One of the forcing required by LSM is specific humidity. We want to use the 2-m specific humidity. So how can I calculate the specific humidity ...
70 views

### Relationship between rainwater and solar radiation

I am an enthusiast in this area and reading some scientific articles on precipitation forecasting and solar irradiation, I was wondering if these two variables have any direct correlation or ...