LUCKNOW, Oct. 30 -- The Regional Meteorological Centre in Lucknow forecast heavy to very heavy rainfall accompanied by thunderstorms and squally winds over the next two days in different parts of the state due to the influence of cyclonic storm Arnab. Weather change was experienced in the state capital on Thursday as 6 mm rainfall was recorded in Chinhat while 12.5 mm was recorded at Sitapur Road in the afternoon. Issuing an Orange alert for the state, the Centre on Thursday notified that due to the remnant of 'Arnab' a depression can be seen over south Chhattisgarh and adjoining southeast Odisha. The depression is likely to move north-northwestward and weaken into a low pressure area. "Due to the interaction of this system with a western disturbance, light to moderate rain with thunderstorms and gusty winds is expected over the state on Friday. Maximum temperatures are likely to see a sharp fall of 5 to 8 degrees Celsius," said senior met scientist Mohammad Danish. Meanwhile, on Friday, heavy to very heavy rainfall is likely in Kushinagar, Maharajganj, Siddharthnagar, Balrampur, Shravasti and Bahraich. Heavy rainfall is also likely in Azamgarh, Mau, Ballia, Deoria, Gorakhpur, Sant Kabir Nagar, Basti, Gonda, Lakhimpur Kheri, Sitapur, Barabanki, Ayodhya and Ambedkar Nagar. The Met has also warned of gusty winds and thunderstorms in several districts, including Lucknow, Unnao, Rae Bareli, Sultanpur and Amethi, and possible hailstorms in parts of western Uttar Pradesh on Friday. Rainfall activity is expected to decrease thereafter. Issuing a warning, IMD notification said, thunderstorms, rain showers with lightning and squally winds of 30-40 kmph gusting to 50 kmph are likely at isolated places over both western and eastern UP, with heavy to very heavy rain at isolated places over eastern UP. According to the forecast, rain or thundershowers with lightning is likely at many places over eastern UP and at some places over western UP. On Saturday, isolated rain is likely, while weather is expected to remain dry on Sunday and Monday....