Sentences with phrase «colder air masses»

If the jet stream dips south, for example, it takes the colder air masses with it.

For a rope cloud to form, the leading edge of the cold air mass must be advancing straight and steady, which can happen only if it is flowing over a smooth, flat surface like the ocean.

These cold air masses often cause nor'easter s, winter storms that move up the Eastern Seaboard and dump massive amounts of snow on the East Coast, as with «Snowmageddon» in 2010.

Creating a supercell takes moisture, updraft, spin, and then the trigger — a boundary between hot and cold air masses.

The more intensive variations during glacial periods are due to the greater difference in temperature between the ice - covered polar regions and the Tropics, which produced a more dynamic exchange of warm and cold air masses.

Each spring, a cold air mass called the Siberian High swoops down on the Gobi and hoists soil particles into the atmosphere.

«The cold air mass helps to cool the warm and wet mass, causing significant precipitation at low levels,» explains Gascón, lead author of the study, who reiterates that this situation does not happen very frequently in winter.

According to NASA Goddard Institute of Space Studies, Kansas will be 4 degrees warmer in winter without Arctic ice, which regularly generates cold air masses that flow southward into the U.S. (You've probably heard weather forecasters say the following hundreds of times: People in the middle part of the country had better button up.

While an active area of research, new studies show that Arctic ice may also influence weather patterns around the world by creating cold air masses.

Snow cover can keep heat from escaping from the land, allowing the formation of cold air masses and limiting frost's penetration into the ground.

Long story short, the polar vortex is the result of global warming changing the semi-permanent weather system over the arctic regions resulting in movement of cold air masses from the arctic region to parts of North America, such as Canada and, unfortunately, poor Buffalo.

However, they tend to rearrange warm and cold air masses, and this latest one has also been linked not only to the Arctic warmth but also to the «Beast from the East» cold spell over Europe.

«The trough approaching from the west will inject into Sandy what is called «baroclinic» energy — the energy one can derive from the atmosphere when warm and cold air masses lie in close proximity to each other.

At present, there is a large cold air mass covering parts of eastern Canada and the U.S., with warmer areas to the west.

And that heat transfer from as yet unfrozen seawater may generate the higher arctic pressures that drive cold air masses southward.

Depending on the depth and extent of the cold air mass, the overriding warm Atlantic air can cause different parts of the state to simultaneously experience rain, freezing ice, sleet and snow.

A frontal inversion occurs when a cold air mass undercuts a warm air mass and lifts it aloft; the front between the two air masses then has warm air above and cold air below.

But with a cooler Gulf of Mexico, there would be less water in that warm air running in to a northern cold air mass, so less rain during that cold season.

The highest surface air pressures occur in the winter over Asia and North America where cold air masses form and become very deep.

My memory of basic meteorology is that thunderstorms require hot and cold air masses to form, which I suppose would cause hail to not be expected very near the eye of a hurricane even if the hurricane was pushing into a cold air mass.

The recent tornadic outbreak in the US resulted from a large cold air mass lingering over the central plains.

Not exact matches

A storm is in fact parasitic on the increase of entropy which would result from the mixing of warm moist and cold air to form a uniform mass.

The coldest weather of the season is barreling into the U.S. this week with a series of «dangerously cold» arctic air masses.

Clouds often materialize along the boundary between masses of cold and warm air.

But when temperatures in the Arctic are higher, the cyclones weaken, allowing masses of cold air to move south.

A mass of cold air from the north or north - east coming off the Atlantic and loaded with moisture are the «ingredients» for a spell of intense snow in these areas.

In fact, cold, dry air masses (such as you typically have on extremely cold days) would warm the first / most in a GW scenario.

Cold air intake would increase the mass of air that enters the engine and thus produce more pressure during combustion.

You will also have undesirable attendees arrive at your festival unannounced, from people that have a cold who will infect the rest of your crowds with their germs forcing people to leave for the warmth of their own homes to smelly tree - hugger types who refuse to shower — making the masses leave due to the off - putting odours that fill the air.

The large snowfall events in Boulder were not associated with cold temperatures, but instead with especially moisture - laden air masses passing through the region.

In fact, cold, dry air masses (such as you typically have on extremely cold days) would warm the first / most in a GW scenario.

(1) Most of the warming would actually occur near the surface in areas with shallow cold dry air masses, such as in Siberia and northern Canada where it would not have a large effect.

In Antarctica, this means that cold and moister air from the surrounding oceans will blow over the interior and fall as snow, so increasing ice mass is to be expected.

When these loops become very pronounced, they detach the masses of cold, or warm, air that become cyclones and anticyclones and are responsible for day - to - day weather patterns at mid - latitudes.

Because it has been very, very cold in this region this year, and in the regions, such as the Pacific Northwest, where the northern Midwest's air masses originate.

Re 346 ziarra — the flow of heat (between adjacent layers of material via conduction, convection, or mass diffusion, or potentially across larger distances via emission and absorption of photons) will be from hot to cold (or from higher to lower concentrations of a substance carrying heat, which might end up being from cold to hot in some conditions, such as a wet surface cooling by evaporation into warm dry air).

This allows the lower pressure and very cold arctic air mass to expand further south, chilling everything well down to Scotland.

The point isn't a «perpetual increase in atmospheric pressure» — that's a misnomer — if you consider the MASS of the atmosphere that is continuously «pumped» from cold air to hot air to cold air again, high up in the atmosphere — that creates «potential energy» from the kinetic energy of the convection — adiabatic expansion of the atmosphere is the result — the adiabatic compression occurs on the return trip of the previously warmed (from radiative energy) air as it completes the «cycle» as it comes back down!

Finally, it would be helpful to have characterized sources of moisture that then precipitate as snowfall, since my understanding (which is undoubtedly in need of correction) was that it was cold dry air mass that are normally kept at bay by the jet stream that creep over land mass and meet moist air that was carried north from lower latitudes.

The true cause of the extreme rains lies in the outflow of relatively cold air from the Indian subcontinent meeting with a warmer air mass to south, and Sri Lanka in the battle zone for several days.

Days before making landfall, due to Sandy's more westerly storm track, Sandy interacted with an atmospheric trough and its cold Arctic air mass that had dipped down over the eastern USA.

While tropical hurricane intensity is primarily driven by latent heat from warm sea surface temperatures, an extra-tropical storm is primarily driven by baroclinic processes (differences in the pressure gradient) such as the gradient due to the contrast between the warm Gulf Stream and cold continental air mass.

The boundary between two different air masses where the cold air pushes the warm air out of way and brings colder weather.

This allows a redistribution of air masses where cold air from the Arctic spills into the mid-latitudes and warm air from the subtropics is carried into the Arctic.

Reduced mixing with relatively warmer sub-surface waters effectively reduces the thermal mass exposed to the cold Antarctic air - slightly more ice forms.

The boundary between two different air masses where warm air pushes cold air away to bring warmer weather.

During the positive AO phase there is little mixing of atmospheric masses between the Arctic and lower latitudes (mid-latitudes and subtropics) so the cold air stays bottled up in the Arctic and mild air dominates the mid-latitudes.

Low pressure systems develop under these conditions of rising warm air, which causes frontal systems to move, mixing cold and warm air masses.

In order to ascertain whether there is a global warming or cooling trend it is necessary to wait several years and then compare the volume and intensity of the cold polar air masses as a whole between the dates chosen.

The polar air masses are getting colder and expanding, contrary to expectations.