Questions tagged [severe-weather]

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3
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1answer
138 views

What is the synoptic/atmospheric setup that is causing the U.S. severe weather outbreak in May 2019?

I asked this in the chat and it was suggested I ask on the main site. There's been a seemingly perpetual severe weather outbreak over the central and eastern U.S. over the past two weeks. Killer EF3s ...
3
votes
1answer
119 views

Why do hurricanes hitting the US East Coast seem to go north once hitting land?

Question says it all really. It appears that every hurricane hitting the US East Coast directs itself north once on land. Hurricane Florence is predicted to hit North Carolina then turn toward Canada ...
0
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1answer
97 views

Does the Columbia Basin, North Cascades and Idaho Panhandle/Clearwater get a lot of violent, rotating supercellular thunderstorms?

Every storm season, supercells erupt in Montana and Wyoming. Wayward cold-core setups can trigger supercells or even long-tracked strong tornadoes in the Columbia/Willamette Valley and the rest of SW ...
1
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1answer
247 views

Why do tropical cyclones get more attention than extratropical cyclones?

For tropical cyclones we have carefully tracked every instance of them, and naming them as soon as they have reached a certain intensity... flying aircraft in to measure conditions... compiling ...
2
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1answer
158 views

Could a firestorm create a hurricane-like cyclone?

Mesocyclones form when air rises and rotates in a "pillar" of sorts. It's sometimes associated with thunderclouds and tornado formation. A certain kind of cumulonimbus, the cumulonimbus flammagenitus,...
4
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0answers
73 views

Does solar wind perturb Earth's magnetic field ? If so, what are the consequences?

The Earth's magnetic field makes continuous battle with external disturbances to protect Earth from unwanted ramifications. Asteroids passing by, solar flares, and other ET disturbances may cause ...
2
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0answers
42 views

Visually Realistic Supercell Modeling

Are there any published descriptions of simple equations governing the formation, evolution, and decay of severe storms? Specifically, I am interested in equations that are able to produce tornadoes ...
2
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1answer
576 views

What influences the movement (speed and direction) of tropical cyclones?

The recent cyclone to impact the Queensland coast of Australia (Cyclone Debbie, Category 4) tracked towards the coast at what was reported to be a very slow speed (between 6 and 7 km/hr). Is that a ...
2
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1answer
330 views

How can I learn to make mesoscale/synoptic analyses of major weather events?

With the tornado outbreak in southern Georgia and northern/central Florida on Sunday that has tragically resulted in significant loss of life, eyes are once again on the weather. I was particularly ...
2
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0answers
127 views

Are thunderstorms on consecutive days due to distinct cold fronts

On the east coast of Australia, the predominant summer thunderstorm pattern seems to be the derecho variety that develops ~300-400 km inland in late morning / early afternoon, and reaches the coast by ...
6
votes
1answer
430 views

How are lightning and thunderstorm intensity linked?

I have lightning data that contains individual strikes and their location, time, polarity, amplitude and type (cloud-to-ground, intracloud). I am trying to develop some metrics that will help me ...
2
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1answer
129 views

Why is it so important to gather data from inside tornadoes?

Or, in other words, what kind of data can be gathered from inside tornadoes and how could it help in predicting them? Also, why isn't it possible to predict/estimate this kind of data from readings ...
8
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0answers
200 views

Modeling swirling storms

I'm looking to demonstrate the rotational behaviour of swirling storms with a numerical simulation. So far it includes pressure-gradient, Coriolis acceleration, frictional forces and the acceleration ...
1
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2answers
267 views

Appearance of Tornado

Does the appearance of a tornado come from the dust or is there some characteristic of swirling wind? Additionally many experiments shows a tornado-like phenomena in a jar of water, is this possible ...
3
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1answer
381 views

Website that contains the maps of atmospheric pressure and wind speeds

Is there a website that contains the maps of atmospheric pressure and wind speeds for specific climatic events such as hurricanes day after day ?
7
votes
2answers
226 views

Are Southern Hemisphere 'Polar Blasts' caused by global warming?

The SMH journalist writes about a cold snap hitting the East Coast of Australia in July 2015: Proof of the big chill will be the extent of regions across Tasmania, Victoria and NSW experiencing ...
7
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1answer
173 views

The spiraling cyclone track - Cyclone Nathan

In the northern part of Queensland, Cyclone Nathan has had a spiral type of track, as can be seen below: Image credit: Tropical Cyclone NATHAN Forecast Track (Joint Typhoon Warning Center) As can be ...
10
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1answer
497 views

Two severe cyclones connected by a monsoonal trough

At the time of writing, areas around the Northern Territory (TC Lam) and Queensland (TC Marcia) in Australia are in the path of severe cyclones (category 4 at the moment, with the Queensland one - TC ...
8
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1answer
528 views

Snow from Fire: Could graupel, or even snow, fall from pyrocumulus clouds?

Pyrocumulus clouds often form in areas that experience prolonged fire conditions, particularly forest fires, but are also associated with volcanic eruptions and even nuclear explosions. This question ...
8
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1answer
673 views

About the effectiveness of sand-bags

Are there any recognized studies on the effectiveness of sand-bags in protecting property in some disaster or flood? Many times on the major news they talk about how sand-bags are used in a flood , ...
14
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1answer
836 views

How does a 'fire tornado' form?

A 'Fire tornado' or 'Firenado' or 'Fire whirl' are a fearful feature of forest fires world wide. Having seen one up close, I can attest that they are both awesome and utterly terrifying, but I am ...
21
votes
1answer
13k views

Do tornadoes have eyes?

In the movie Into the Storm (2014) near the end, storm chaser Pete sees the eye of a massive tornado. In 1928 (real life), Will Keller was in his barn when a huge tornado passed through. He reported ...