Tornadoes

On average, around 10 tornadoes occur in Montana each year. These tornadoes typically tend to be weaker in intensity compared to those seen in other parts of the United States. Montana's tornado season usually runs from June to August.

It has most likely been a matter of chance. Where tornadoes occur is essentially random with respect to where we build our cities and towns. Since it is random, then by simple probability some areas will be hit an inordinate number of times while others will almost never be hit.

The plural of tornado is tornadoes.

Staying low to the ground during a thunderstorm reduces the risk of being struck by lightning. Lightning tends to strike higher objects, so getting low decreases the chances of getting hit. Avoid open fields, isolated trees, and bodies of water to further minimize the risk.

Yes, isolated thunderstorms can produce tornadoes. Tornadoes can develop within a single thunderstorm or a cluster of thunderstorms. It is important to stay informed of weather alerts and warnings when isolated thunderstorms are present.

If by last night you mean April 4, 2011 then yes.

There were at least 5 tornadoes confirmed in 3 states.

In Kentucky there were 2 EF1 tornadoes and an EF2.

In Tennessee there was also an EF1 tornado.

In Ohio there was an EF0 tornado.

Tornadoes are very powerful because they have very low pressure at their centers. The large pressure drop over a short distance produces very fast winds.

A tornado originates from a larger but less intense circulation called a mesocyclone which is embedded in a strong thunderstorm called a supercell. Other forces within the storm focus the lower portion of the mesocyclone into a smaller area, increasing both the pressure drop and the winds speed, so that instead of a 5 millibar pressure drop occurring over a distance of 2-6 miles a 50 millibar or greater pressure drop occurs over a distance usually less than 1/4 mile.

Mammatus clouds form when sinking pockets of cold, dense air create pouch-like structures underneath the base of a larger cloud. These pockets are formed by the downward motion of air and moisture that condense into visible cloud droplets. Mammatus clouds are often seen following intense thunderstorms and can be a sign of turbulent weather.

That is a difficult question to answer. It is true that the lowest pressure recorded in a tornado (688 millibars) was much lower than the record low pressure for a tropical cyclone (870).

But very few measurements have been taken from inside a tornado, so it is unknown what pressures would be normal.

The collision of warm and cold air is not the direct cause of a tornado, nor is it absolutely necessary.

When a cold air mass pushes into a warm air mass (this is called a cold front) the warmer, less dense air is forced upwards. As the air rises it cools and the moisture in it condenses to form clouds, rain, and thunderstorms.

If other factors such as strong wind shear (a change in the wind speed and direction with altitude) are present these storms may begin to rotate. This rotation can then develop into tornadoes.

The last notable tornado in Arkansas occurred on March 28, 2021, primarily affecting areas in Desha County and near the town of Dumas, with winds reaching up to 140 mph. Arkansas typically experiences tornadoes during the spring months, with peak activity in March, April, and May.

That would be hail. Hail forms when updrafts in a cumulonimbus cloud carry raindrops into extremely cold areas of the atmosphere, causing them to freeze into layered lumps or balls of ice.

Tornadoes can occur at any time of year, but are most common in the spring and early summer. The peak tornado season in the southern states of the US is in the spring, while in the northern states it is typically in the summer.

Tornado Alley typically stretches from central Texas to North Dakota. It covers parts of the central United States, including states like Oklahoma, Kansas, Nebraska, and South Dakota, where tornadoes are more frequent due to the clash of warm, moist air from the Gulf of Mexico and cool, dry air from the Rockies.

Using Doppler radar and other tools, meteorologists try to warn people if there is a tornado or a risk of one. After a tornado, relief agencies often help clean up, rebuild, and provide temporary shelter if necessary.

Your home or whatever building you are in may be damage or even destroyed spending on the strength of the tornado and how sturdy the building is. If the building is destroyed you may be struck by falling debris or trapped under the rubble. If you are exposed to the open at all you may be struck by flying debris carried by the winds, which can injure or kill. You could even be picked up and carried by the winds of the tornado in which case survival is unlikely.

Tornadoes are made by thunderstorms, made by cumulonimbus clouds. They appear as very tall white puffy clouds with a dark base and an anvil shaped top. Thunderstorms that can produce tornadoes also have a corkscrew appearance or with striations in the cloud tower.

You

need warm, moist air from the Gulf of Mexico and cool, dry air from Canada.

When these two air masses meet, they create instability in the atmosphere.

There are aspects of both that are not fully understood.

For formation:

First, a condition called wind shear, in which the speed or direction of the wind changes with altitude. If the shear is strong enough it can essentially tilt a thunderstorm, this separates the updraft and downdraft of the thunderstorm, preventing them from interfering with one another. This allows the storm to become stronger and last longer.

Additionally, if the wind shear is strong enough it can start the air rolling in what is called horizontal vorticity. This horizontal vorticity can then be turned vertical by a thunderstorm's updraft. When this happens, the thunderstorm may start rotating. The rotation is especially strong in an updraft called a mesocyclone. If the storm intensifies rapidly enough, a relatively warm downdraft called a rear-flank downdraft or RFD can wrap around the bottom part of the mesocyclone. This can then tighten and intensify its rotation and bring it down to the ground to produce a tornado.

For how tornadoes end, it is thought that cold air coming out of a thunderstorm (called outflow) undercuts the mesocyclone, the rotating updraft that drives the tornado. This chokes off the supply of warm air that the updraft feeds the updraft.

A powerful tornado with an EF4 or EF5 rating on the Enhanced Fujita Scale has the potential to flatten houses. These tornadoes produce winds ranging from 166-200+ mph that are capable of causing extreme damage to structures.

If you are 50 miles away from a tornado, it's generally safe to stay put unless the tornado is moving directly towards you or if local authorities instruct you to evacuate. Stay informed through weather alerts and listen to local authorities for any potential warnings or updates.

The original F or Fujita scale rates tornadoes from F0 to F5 based on the severity of damage and gives each tornado an estimated range of windspeeds based on this.

The EF or Enhanced Fuijta scale examines damage in more detail. Engineers and meteorologists look at the damage and determine the tornado's peak wind speed and use that to get the rating.

For example, if damage indicates a tornado had 120 mph winds at its strongest, it is rated EF2, with winds ranging from 111 to 135 mph

The wind estimates for the categories have been adjusted for the new scale, here is a comparison of the old and new. Keep in mind that even though the wind estimates for each category have changed the damage for those categories remains essentiall the same

F0 40-72 mph EF0 65-85 mph

F1 73-112 mph EF1 86-110 mph

F2 113-157 mph EF2 111-135 mph

F3 158-206 mph EF3 136-165 mph

F4 207-260 mph EF4 166-200 mph

F5 261-318 mph EF5 over 200 mph

A tornado is a violently rotating column of air that extends from a thunderstorm to the ground. It is capable of causing significant damage due to its high winds and can result in destruction of buildings and vegetation in its path. Tornadoes are commonly observed during severe thunderstorms.

It starts with a little bit of rain then to a heavy ran, then usually to a little bit of hail then to a heavy hail.