The month of March had remained largely deficient for the state of Uttar Pradesh. The situation for Bihar was all the worse as no rains were witnessed during the entire month. As far as the month of April is concerned, the first few days were dry for Uttar Pradesh, while Bihar saw some rainfall activity.
Between April 5 and 11, both the states of Uttar Pradesh and Bihar saw a rainy spell. The rainfall amount was the most in Bihar followed by West Uttar Pradesh and East Uttar Pradesh. In fact, both these states recorded at least five to six times more rains than they usually would during that week.
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Due to these rains, the rainfall deficiency improved to quite an extent over both these states. Bihar has come to near normal and currently stands at 17 percent rain deficiency (normal being +/-19%). Meanwhile, both the regions are still witnessing a rainfall deficiency with East Uttar Pradesh being rain deficient to the tune of 25 percent while West Uttar Pradesh is 32 percent rain deficient.
During the month of April, circulations develop because of the heat prevailing in East India. These are benign circulations; however, their activation takes place because of the passing systems from North India travel from west to east. These circulations usually form in the Bihar region.
Same was the case between March 5 and 11, wherein the Western Disturbance activated the circulation. Humid winds from the Bay of Bengal were also increasing moisture along with which a trough was also extending across East India. These rainfall activities were convective in nature in terms of more lightning, thunderstorm and squally winds.
Now, as per weathermen, the circulation has now become insignificant due to which dry weather is expected over both the states for the next three to four days. Due to this, temperatures will also witness an increase along with which there may be increase in the deficiency levels.
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