"The flood was not only due to the rains but also because of melting of snow. Rainfall came almost two weeks early in the state. During that period, winter snow was already there. Now when the rain came, snow melted and flowed down along with the rains which increased the volume of water in rivers significantly," the Ministry secretary Shailesh Nayak said.
Pointing out that his ministry had never declared there was a cloudburst in the state, he said flow of large amount of materials like boulders added to the misery.
Hundreds of people lost their lives in the tragedy that struck the state last month.
Aiming at helping people visiting the hill state, Earth Sciences ministry is planning to to start a mobile service that would post updates about weather conditions, Nayak said.
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He said meteorological satellite INSAT-3D, which was launched today, would lead to an "improvement in weather forecast" in the country.
The Ministry is also spearheading a project to increase the Doppler network in Himalayan states in the next two to three years to improve weather forecasting.
Doppler radars are capable of predicting severe thunderstorms and generating accurate data on wind changes and rain clouds. Three of 15 such radars would be set up in Uttarakhand.