The authority behind Kerala's rain alerts is a statutory body chaired by the Chief Minister
Background
The body at the top of Kerala's disaster machinery, which issues the State's rainfall and wind warnings, is the Kerala State Disaster Management Authority (KSDMA).
State Disaster Management Authorities are statutory bodies constituted under the Disaster Management Act, 2005 (Central Act 53 of 2005).
KSDMA is described on its own site as a statutory non-autonomous body under the Chairmanship of the Chief Minister of Kerala.
Under Section 3 of the Kerala State Disaster Management Rules (KSDMR), the authority is composed of ten members, chaired by the Chief Minister and convened by the Additional Chief Secretary, Revenue and Disaster Management.
The Chief Secretary, who is also Chairperson of the State Executive Committee, is the Chief Executive Officer of KSDMA under Section 14 (4) of the DM Act.
The Head of the Kerala State Emergency Operations Centre (KSEOC) is the Member Secretary of the Authority, and KSEOC manages technical matters and emergency operations.
The first KSDMA was constituted vide S.R.O No. 395/2007 and the present composition is notified vide S.R.O No. 583/2013. Its motto is 'Towards a Safer State' and its office is at Observatory Hills, Vikas Bhavan P.O, Thiruvananthapuram.
In plain words
KSEOC Kerala State Emergency Operations Centre — The round-the-clock control room that runs Kerala's emergency operations.
S.R.O Statutory Rules and Orders — The numbering used for subordinate legislation notified in the official gazette.