The airmass which originates over equatorial region is

If the advancing cold front is colder than the cool air mass of the warm front, the advancing cold front undercuts and lifts both the warm and cool air masses of the warm front. This is a

The airmass which originated over land area located in polar region is

If a warm airmass overtakes a cold air mass, it is called

At warm front

The conditions are always unstable at a

Sometimes Line squall occurs about 100-300 km ahead of a

Precipitation occurs over a belt of 30 - 50 km on both side of front

Cold front moves at ... the speed of a warm front moves

Line Squalls occur... of the Cold front

Fronts are associated with

CB, Roll-type clouds, SC, AC with embedded CB are associated

The surface of discontinuity between the Polar Ely and the temperate Wly is called

The air mass which originates from sea area located in lower Lat is

WDs approach India as

Maximum WDs occur in

Ahead of a warm front the surface wind

On approach of a Warm Front temperature

During the passage of a Cold Front winds

Visibility is poor in a Warm Front

Fog occurs in Cold Front

WD is a .... front

FZRA and FZFG occur ... of a warm front

Precipitation ceases after the passage of a front

During the approach of a Warm Front wind

A WD with two or more closed isobars, at 2 hPa interval, it is termed as

A WD originate over

Induced lows develop to the ........ of a WD

The arbitrary lower limit of jet core velocity has been assigned by WMO as

Jet stream has

The vertical wind shear in a jet stream is about

Compared to horizontal wind shear, the vertical wind shear in a jet stream is

In a jet stream, the path of the maximum speed is known as

The wind speed along the axis of a jet stream is always

Along the axis of a jet stream there are centres of high speed winds; these are called

In a wavy jet the jet streaks are located over or near the

Sub-tropical Jet Stream (STJ) is

The normal position of Sub-tropical Jet Stream is

The southernmost position of STJ in February is

The STJ affects India from

STJ has a layered structure. There are often two layers of max wind to the.. ...of jet core

The STJ strengthens

At and near the STJ the temperature gradient is very

Vertical wind shear in STJ is greater. .... the core

The TJ prevails over the Indian Peninsula from

The TJ is located over the Indian Peninsula, approximately at

The TJ is located over Indian, approximately at a height of

The TJ is strongest in

In the TJ the wind shears are much.. than the STJ

TJ is

A jet stream can be recognized by

For mountain waves to form there should be flow of air across the ridge, generally within how many degrees of the perpendicular to the ridge?

For mountain waves to form the wind speed for small mountains should be at least:

For mountain waves to form the wind speed for large mountains should be at least:

For mountain waves to form there should be ____ air below the ridge and less stable air above.

The worst kind of turbulence is encountered in the vicinity of which cloud type?

In mountain waves the rotor clouds form in:

Clear Air Turbulence is often encountered:

Most CAT occurs on the ______ of a jet stream and in the vicinity of upper-level frontal zones where temperature contrasts are strong.

CAT is the bumpiness experienced by aircraft at high altitudes. Over North India its maximum frequency is during:

When approaching an area where mountain waves have been reported, a pilot should expect:

Wind speed in a tropical severe cyclone is:

Fronts are characteristic of:

In a mature tropical cyclone, the eye area is characterised by:

Cyclonic storms cross the Tamil Nadu coast in:

Cyclonic storms form over Indian seas during:

TRS occurs over Indian seas in:

In the Bay of Bengal during July and August, monsoon depression forms:

In a monsoon depression maximum weather occurs in

During re-curvature maximum weather in a monsoon depression occurs in

On whatever compass course the cyclone is approached, strong winds from the port indicate that the centre lies somewhere

The well developed extra tropical cyclonic storm is composed of two main frontal systems and an occluded front, which varies in extent:

Cyclonic storms are confined almost entirely to the

The weather expected in a well developed cyclonic storm is:

After entering land the Cyclones gradually die down

The .. ... is the most dangerous part of the cyclone is

No CS form

Average life of a tropical cyclone in India is

CS in India are mostly of intensity

Eye of a CS is surrounded by

CS in Indian region are less intense because

Surge is sudden strengthening of wind in the ... air mass

Surge and Shear Line are features of

Peninsular discontinuity occurs along

Peninsular discontinuity occurs during

Surge is also

In a depression the wind speed is

In a CS the wind speed is

A monsoon depression slopes with height

Average life of a monsoon depression is

Monsoon depressions move faster over

For formation of a CS sea surface temperature should be

In extra tropical cyclone family there are 3 - 4 CS or depressions, one to the .... of the other

In TRS the central pressure is about

TRS develop over

TRS develop over.. deg Lat

In TRS pressure gradient is very steep up to a radius of

Extra Tropical Storms originate in

Extra-tropical Storms generally move in the direction

A Tropical Cyclone moves .......... in a day

A Tropical CS has outer storm area of about

Flying at right angles to a jet stream with falling pressure you will experience

When and where tropical jet stream occurs