A Upper Air circulation (UAC) lay over off South West Bay of Bengal off Sri Lanka coasts which extended between 1.5 km & 5.8 km above m. s. l. The 24 hrs rainfall in Tamil Nadu on 8.30 am ending 22.08.2021 (min 40 mm) –
Day rains in Chennai in last 10 years
Day rains (8.30 am to 11.30 am) in Chennai City are very rare during SWM (June-Sept) because we depend on heat based convective rains and most for rains happen at evening or night when we leave to home from office.
(criteria min 10 mm should be recorded after 8.30 am). Rainfall figures are data after 8.30 am to 2.30 pm
21st August, 2021 (73 mm in Nunga)
19th July, 2020 (15 mm in Meena)
18th August, 2019 (14 mm in Nunga and 27 mm in Meena)
17th August, 2019 (12 mm in Meena)
22nd July, 2019
13th August 2018
September 01, 2017
10th June, 2014
September 11, 2013
August 14, 2013 (32 mm in Nunga and 20 mm in Meena)
September 29, 2011
The 24 hrs rainfall in Chennai & 100 kms (KTC) on 8.30 am ending 22.08.2021 (min 10 mm) –
Tamil Nadu Satellite image on 21.08.2021