IMD's latest visible channel satellite image shows thin, diffuse cloud cover over north India. The absence of bright white cloud clusters suggests Delhi is unlikely to receive significant rainfall in the near term. (Credit: IMD)

Will it rain in Delhi? Satellite images show light clouds hovering over North India

IMD satellite images show thin, light clouds over north India with no organised rain-bearing system approaching Delhi. Here is what the imagery reveals about Delhi's rain chances right now.

by · India Today

In Short

  • IMD satellite images show thin, light clouds drifting over north India.
  • No organised rain-bearing cloud system is approaching Delhi currently.
  • Bright white clouds in satellite imagery would signal approaching rainfall.

Step outside in Delhi right now and the sky tells you very little. It is grey, slightly hazy, and stubbornly undecided. Will it rain or will it not?

The latest satellite images from the India Meteorological Department (IMD) may have the answer, and it is not particularly promising for anyone hoping to smell wet earth anytime soon.

WHAT THE IMAGES SHOW

The most recent visible channel satellite imagery from IMD’s INSAT-3D satellite shows a scattering of light, thin clouds drifting over North India.

These are not the kind of clouds that bring relief. They are diffuse, high-altitude formations that meteorologists describe as optically thin, which means they allow most sunlight to pass through rather than trapping moisture and building into a rain-bearing system.

For Delhi to receive meaningful rainfall, forecasters need to see something very different in these images: dense, bright white cloud clusters, the kind that signal deep atmospheric convection and rising moisture.

HOW SCIENTISTS READ THE CLOUDS

The visible channel sensor works by reading sunlight reflected off clouds and the Earth's surface back up to the satellite. The scientific term for this reflected fraction is albedo. The brighter a cloud appears in the image, the thicker and more moisture-laden it is.

Cumulonimbus clouds, the towering giants responsible for thunderstorms and heavy rainfall, appear almost blindingly white in satellite imagery. Thick low clouds like cumulus and stratus show up bright too.

IMD meteorologists monitor satellite imagery around the clock to track approaching weather systems. The current imagery over north India shows no significant rain-bearing system building towards Delhi. (Photo: PTI)

The thin, wispy cirrus clouds floating over north India right now appear grey and washed out, which is exactly what the current imagery over Delhi reflects.

SO WILL IT RAIN IN DELHI?

Based on what the satellite imagery shows, significant rainfall over Delhi does not appear imminent. The cloud cover is present but shallow.

There is no organised, moisture-rich weather system approaching from either the Bay of Bengal or the Arabian Sea that would typically fuel sustained rain over the capital.

Consecutive visible channel satellite images are used by IMD forecasters to track cloud movement and detect whether a weather system over north India is intensifying, which would signal approaching rainfall for Delhi. (Photo: PTI)

IMD's forecasts currently indicate partly cloudy skies over Delhi with limited chances of rainfall in the near term.

Until satellite images begin showing thicker, brighter, and more organised cloud clusters moving towards north India, residents should expect grey skies rather than wet ones.

WHAT TO WATCH FOR

Meteorologists track cloud brightness and movement across consecutive satellite images to spot whether a weather system is building or dissolving.

When cloud clusters grow brighter and start organising into larger formations over north India, that is the signal that rain may be on its way.

For now, the visible channel imagery tells a clear story: the clouds are there, but they are not ready to deliver.

- Ends