LUCKNOW, July 19 -- With the India Meteorological Department (IMD) forecasting an active monsoon phase and a widespread increase in rainfall, an orange alert for heavy to very heavy rain has been issued across parts of Uttar Pradesh until July 21, followed by a yellow alert for isolated heavy rainfall in southern districts until July 24. The intensified monsoon circulation over the state is expected to trigger widespread rainfall and bring down temperatures by 4-6degC over the next two to three days, providing relief from the prevailing humid conditions. The Regional Meteorological Centre, Lucknow, said the enhanced monsoon activity is likely to result in widespread rainfall, with heavy to very heavy showers at isolated places across the state. Lucknow is expected to witness an overcast sky with intermittent rain and thundershowers on Sunday. On Saturday, Banda recorded 70.8 mm of rainfall, followed by Hamirpur (45 mm), Ghazipur (41.8 mm) and Barabanki (9 mm). During the past 24 hours, Bardghat in Gorakhpur recorded the highest rainfall at 141.6 mm, followed by Gorakhpur district (110.2 mm), Chunar in Mirzapur (80 mm) and Paliyakalan in Lakhimpur Kheri (70.4 mm). The IMD issued an orange alert for heavy rainfall in 24 districts, including Gorakhpur, Sant Kabir Nagar, Maharajganj, Siddharthnagar, Basti, Gonda, Balrampur, Shravasti, Bahraich, Lakhimpur Kheri, Sitapur, Barabanki, Ayodhya, Saharanpur, Muzaffarnagar, Moradabad, Bareilly, Pilibhit, Sambhal and Badaun, besides adjoining areas. A yellow alert for heavy rainfall was sounded for 30 districts, including Lucknow, Kanpur City, Unnao, Rae Bareli, ETC....