LUCKNOW, March 17 -- A new spell of rainfall is expected in the state from March 19 to 22 due to an approaching western disturbance, the weatherman said on Monday. Influenced by a western disturbance centered over northern Punjab and a cyclonic circulation situated over Haryana-and resulting from the interaction of westerly and easterly winds in the northern parts of UP-the spell of intermittent rainfall accompanied by thunderstorms over the past two days in the northern Terai regions has now ceased. Consequently, a significant rise in temperatures has been recorded across the state. Continuing this trend, the weather is expected to remain dry; as a result, temperatures are likely to rise further by 2-4degC. "Subsequently, under the influence of an approaching active western disturbance, a new spell of rainfall is expected to commence in western UP on March 19. With rainfall likely across the state through March 22, maximum temperatures are expected to witness a decline of 5-7degC once again, returning to-or falling below-normal levels," said Atul Kumar Singh, scientist at Lucknow met office.htc...