Muscat – Severe cyclonic storm Shaheen brought 369mm of rainfall in the wilayat of Khabourah over two days, more than three times the average annual rainfall of Oman.
The average annual rainfall in the sultanate in 2020 was 103mm, a rise of 9.2 per cent over 2019, when it was 94.3mm. In a single month, Dhofar governorate recorded the highest amount of rainfall – 197.4mm in May 2020. The average rainfall for the month of October in Suwaiq and Sohar is 5.9mm, while for Muscat it is 0.80mm.
Statistics from the Ministry of Agriculture, Fisheries, and Water Resources show the level of rainfall over a number of wilayats from October 2 to 4 was way above the annual average.
Khabourah was followed by Suwaiq (300mm), Seeb (222mm), Muttrah (178mm), Nakhal (170mm), Mussanah (150mm), Rustaq (139mm), Samail (135mm), Bidbid (119mm), Izki (100mm), Ibri (86mm) and Mudhaibi (65mm), among others.
The super cyclonic storm Gonu in June 2007, which is considered the strongest extreme weather event of the last 100 years in Oman, caused 50 deaths and was accompanied by 900mm of rain over two days.
The very severe cyclonic storm Phet in June 2010 dropped heavy rainfall of about 450mm, over northeastern Oman leading to extensive flash flooding.
The extremely severe cyclonic storm Mekunu in May 2018 was the strongest cyclone to strike Dhofar since 1959. It dropped 617mm of rainfall in Salalah, causing landslides and extensive flooding, according to the Second National Communication 2019 submitted to United Nations Framework Convention on Climate Change by the then Ministry of Environment and Climate Affairs.