The monsoon trough is a portion of the Intertropical Convergence Zone, as depicted by a line on a weather map showing the locations of minimum sea level pressure, and as such, is a convergence zone between the wind patterns of the southern and northern hemispheres.
What is a monsoon depression?
monsoon depression. A depression that forms within the monsoon trough. The term is most frequently used to describe weak cyclonic disturbances that form over the Bay of Bengal and generally track northwestward over the Indian subcontinent.
What is the break in monsoon?
During the Monsoon season, there are periods when the Monsoon trough shifts closer to the foothills of Himalayas, which leads to sharp decrease in rainfall over most parts of the country. Such a synoptic situation is known as the ‘break’ Monsoon period.
What is a Tutt low?
A TUTT low is a TUTT that has completely cut-off. TUTT lows are more commonly known in the Western Hemisphere as an “upper cold low”. TUTTs are different than mid-latitude troughs in that they are maintained by subsidence warming near the tropopause which balances radiational cooling.
What is the meaning of Tropical Depression?
A tropical depression forms when a low pressure area is accompanied by thunderstorms that produce a circular wind flow with maximum sustained winds below 39 mph. An upgrade to a tropical storm occurs when cyclonic circulation becomes more organized and maximum sustained winds gust between 39 mph and 73 mph.
Can a tropical depression turn into a hurricane?
A tropical depression becomes a tropical storm if its winds reach 63 km/hr (39 mph). A tropical storm becomes a hurricane if its winds reach 119 km/hr (74 mph). Scientists don’t know exactly why or how a hurricane forms. Warm ocean waters provide the energy a storm needs to become a hurricane.
How long do most tropical storms last?
These life cycles may run their course in as little as a day or last as long as a month. The longest-lasting tropical cyclone ever observed was Hurricane/Typhoon John, which existed for 31 days as it traveled a 13,000 km (8,100 mi) path from the eastern Pacific to the western Pacific and back to the central Pacific.
When was the deadliest hurricane?
Deadliest United States hurricanesRankHurricaneSeason1″Galveston”19002″Okeechobee”19283Katrina20054″Cheniere Caminada”1893
How long is the tornado?
Tornado paths range from 100 yards to 2.6 miles wide and are rarely more than 15 miles long. They can last from several seconds to more than an hour, however, most don’t exceed 10 minutes.
What are the five warning signs that a tornado may occur?
There are several atmospheric warning signs that precipitate a tornado’s arrival:
A dark, often greenish, sky.
Wall clouds or an approaching cloud of debris.
Large hail often in the absence of rain.
Before a tornado strikes, the wind may die down and the air may become very still.
Can you outrun a tornado in a vehicle?
It is true that tornadoes can move along the ground at up to 70 miles per hour and can change course unpredictably, but most cars can easily top 70 mph if no traffic gets in the way. “You can outrun a tornado, but you have to know what you’re doing,” Carbin tells Popular Mechanics.
Where is the safest place to be during a tornado?
Of course, the safest place to be when a tornado approaches is in a basement or storm shelter underground. But if you are not able to get to a shelter or basement, you need to find shelter that is available. If you have a cellar, storm shelter, safe room or basement available, go immediately to that area.
Can a tornado go over water?
Tornadoes that form on land can cross bodies of water, including rivers and lakes. Tornadoes can also form on water. These tornadoes are called “waterspouts.” Never think that a body of water will protect you from a tornado.
Can a tornado go up and down hills?
— New research from the University of Arkansas finds that tornadoes cause greater damage when traveling uphill — and that the twisters tend to climb toward higher elevations rather than going downhill. Engineering researchers studied images of the 2011 deadly tornadoes in Tuscaloosa, Ala., and Joplin, Mo.
Can a tornado come at night?
A tornado technically is born when this funnel cloud touches down on the ground. Although tornadoes are more frequent in the afternoon, they can happen anytime, even at night. Tornadoes can occur almost anywhere in the world, but the United States is the country with the highest frequency of tornadoes.
Are tornadoes high or low pressure?
A tornado is not necessarily visible; however, the intense low pressure caused by the high wind speeds (as described by Bernoulli’s principle) and rapid rotation (due to cyclostrophic balance) usually cause water vapor in the air to condense into cloud droplets due to adiabatic cooling.
Can you have a tornado in the snow?
There is observational evidence that suggests tornadoes can occur in snow, but with localized snows associated with thunderstorms rather than with conventional large-scale snowstorms. This may be why it is harder, though not impossible, to spin up a tornado during a snowfall.
Are tornadoes possible in the winter?
Winter tornadoes can be particularly deadly, not because they’re stronger, but because they tend to move faster. Tornadoes in the winter and early spring are often associated with strong, frontal systems that form in the Central States and move east, according to the National Severe Storms Laboratory.
How are tornadoes so powerful?
The winds rotate because the wind speed and direction changes with height, providing an abundance of something called vertical wind shear. It is this wind shear that causes supercells to rotate, and it is this strong rotating updraft, that spawns hail the size of cricket balls and devastating tornadoes.
What is the best time to visit Delhi?
The best time to visit Delhi is from October to March when the weather is at its best. During this period flowers are at their blooming best, the weather is pleasent and enjoyable to experience Incredible Delhi.
Which month is best to visit India?
The best time to visit India is from October to March. India is large with diverse weather patterns. The Himalayas stop cold winds from reaching most of India so winters remain warm and summers can get very hot. The majority of India is tropical and is affected by three main seasons; summer, winter and monsoon.