**Executive Summary**
The document addresses concerns regarding the monsoon warning system in India. It outlines improvements in forecasting accuracy and the implementation of various tools and strategies for effective flood forecasting and disaster management. The Ministry of Earth Sciences, Central Water Commission, and National Disaster Management Authority are all key stakeholders in these initiatives. The report mentions the upcoming Maha Kumbh 2025 as a key event for public awareness campaigns.
**Key Points / Main Content**
* **Forecasting Accuracy:**
* Forecasting models have improved significantly but cannot achieve 100% accuracy.
* The skill score for 24-hour advance detection of heavy rainfall is 85% in 2024.
* Forecast accuracy for heavy rainfall events improved by about 40% from 2014 to 2023-2024.
* IMD issues impact-based and risk-based early warnings at the meteorological subdivision and district levels.
* **Infrastructure and Technology:**
* IMD's forecasting system is fully operational in all districts, with high-resolution models and GIS systems covering all districts.
* 47 Doppler Weather Radars (DWRs) are operational, covering 87% of the country, with plans for future installations.
* Computing facilities (Arunika and Arka) have been increased to support high-resolution models.
* Bharat Forecasting System (BharatFS) has been developed to improve short- and medium-range weather predictions.
* **FloodWatch India App:**
* The Central Water Commission (CWC) developed the FloodWatch India mobile application for real-time flood information.
* The app provides flood forecasting information for 200 stations, water levels for 500+ stations, and live storage status of 150+ reservoirs.
* The app is accessible to the public and serves as a decision-support tool for disaster management authorities.
* **Impact-Based Warnings and Colour-Coding:**
* IMD provides threshold-based, impact-based, and risk-based early warnings with color-coding.
* CWC monitors floods in three categories: Above Normal-Yellow, Severe-Orange, and Extreme-Red.
* **SACHET Portal:**
* SACHET disseminates colour-coded alerts to States & UTs, with approximately 89 thousand alerts generated and 11000 Crore SMSs sent to citizens.
* NDMA conducts campaigns to raise public awareness about hazards and disaster management initiatives.
* SACHET awareness is disseminated through electronic and print media, field activities, and social media.
**Impact Analysis**
**State Governments, State Disaster Management Authority (SDMA), National Disaster Management Authority (NDMA), and the Public**
**Impact**
Timely availability of river flow conditions, flood forecasts, and reservoir storage data strengthens preparedness, early warning, and coordinated response during flood situations. They receive flood warnings and alerts through various channels.
**Action Required**
State Governments, SDMAs and NDMAs can implement mitigation measures and respond effectively to flood events. The public can download and use the FloodWatch India app for real-time information.
**Vulnerable Populations**
**Impact**
Impact-Based Forecasting (IBF) provides localized risk assessments for vulnerable populations in advance of extreme events.
**Action Required**
Be aware of the color-coded alerts disseminated through SDMA and other channels and implement appropriate safety measures.
Key Entities Referenced
India Meteorological Department (IMD): Responsible for weather forecasting and issuing warnings related to weather events like heavy rainfall.
Central Water Commission (CWC): Developed FloodWatch India App and is responsible for flood forecasting and monitoring.
FloodWatch India: A mobile application developed by CWC to provide real-time flood information, forecasts, and alerts to users.
Mission Mausam: A Central Sector Scheme launched by the MoES to make Bharat a weather-ready and climate-smart nation.
SACHET: Integrated alert system that disseminates color-coded alerts via SMS, mobile apps and social media.
GOVERNMENT OF INDIA
MINISTRY OF EARTH SCIENCES
LOK SABHA
UNSTARRED QUESTION NO. 2840
TO BE ANSWERED ON WEDNESDAY, 17TH DECEMBER, 2025
MONSOON WARNING SYSTEM
2840. SHRI MANICKAM TAGORE B:
Will the Minister of EARTH SCIENCES be pleased to state:
(a) whether it is a fact that despite repeated claims of a robust monsoon warning system,
several regions continue to face avoidable loss of life due to delayed or inaccurate alerts
and if so, the details thereof and if not, the reasons for contradiction between the ground
reports and official claims;
(b) whether the India Meteorological Department (IMD's) so-called "state-of-the-art
forecasting network" is fully functional in all vulnerable districts including Doppler radars,
high-resolution models and GIS systems and if so, the details thereof and if not, the reasons
for delay in full deployment;
(c) whether the Government is effectively utilising the CWC's FloodWatch India app and real-
time river monitoring sensors for timely flood forecasting and if so, the details thereof and
if not, the reasons therefor;
(d) whether the transition to impact-based warnings and color-coded advisories is complete
nationwide and if so, the details thereof and if not, the reasons therefor; and
(e) whether NDMA's integrated alert system including the SACHET portal is reaching citizens
consistently through SMS, mobile apps and social media and if so, the details thereof?
ANSWER
THE MINISTER OF STATE (INDEPENDENT CHARGE) FOR
MINISTRY OF SCIENCE AND TECHNOLOGY
AND EARTH SCIENCES
(DR. JITENDRA SINGH)
(a)-(b) The accuracy of the forecasting models used by IMD has improved significantly; however,
it is not possible to forecast with 100% accuracy. The skill score for 24-hour (1 day) in
advance detection of monsoonal heavy rainfall over the meteorological subdivisions is 85%
in 2024. At present, the accuracy of IMD's heavy rainfall forecasts, measured as the
percentage of correct warnings, is 85%, 73%, 67%, 63%, and 58% for lead times ranging
from one to five days, respectively. Overall, forecast accuracy for heavy rainfall events
across the country improved by about 40% in 2023–2024 compared to 2014.
IMD issues heavy rainfall impact-based forecasting and risk-based early warnings
considering the amount of heavy rainfall and the susceptibility of the area of occurrence of
heavy rainfall. The warning is issued at the meteorological subdivision and district level,
valid up to 7 and 5 days, respectively. There is also nowcasting every three hours, with
validity of the next three hours for heavy rainfall.IMD's state-of-the-art forecasting system is fully operational in all the districts of the
country. The high-resolution models and GIS systems cover all the districts of the country.
Regarding the Doppler Weather Radar (DWR) Network, currently, 47 DWRs are in
operation across India, with 87% of the total area of the country coming under radar
coverage. In the coming years, DWRs will be installed as per the requirement to cover the
remaining gap areas in the country, provide redundancy, and replacement of old radars in
the DWR network under Mission Mausam of MoES. The Ministry is continuously working
to strengthen observational capabilities and R&D infrastructure to achieve greater accuracy
in weather forecasting. Further, the IMD has expanded its infrastructure for observations,
data exchange, monitoring & analysis, forecasting, and warning services in the country,
including vulnerable districts.
To provide computational support for such high-resolution models and to enable them to
run regularly in real-time, the computing facilities (Arunika and Arka) have also been
substantially increased to integrate voluminous data and run mesoscale, regional, and
global models at higher resolutions. Further, recently, a new Central Sector Scheme,
"Mission Mausam", was launched by the MoES to make Bharat a "weather-ready and
climate-smart" nation. Various steps have been taken to ensure effective dissemination of
warnings to vulnerable populations. The recently launched Bharat Forecasting System
(BharatFS) has been developed primarily to improve short- and medium-range weather
predictions.
Forecast improvement is a continuous process with augmentation of more observations and
Numerical Weather Prediction Models. With further improvement in the observational
network consisting of traditional (surface, AWS/ARG/HWSR, and upper air stations-
RS/RW, GPS Sonde, Pilot balloon, and wind profilers) and remote-sensing observing
platforms (Satellites and Radars), the forecast accuracy is likely to improve further.
All warnings originated by IMD pertaining to Monsoon are made available to SDMAs in
near real time for further dissemination over SMS, Mobile App, Sachet Public Portal,
GAGAN & NaVIC Satellite terminals, and RSS feed. There is no processing delay in the
Sachet platform.
(c) Central Water Commission (CWC) developed the FloodWatch India mobile application
during the 2023 monsoon season to provide real-time flood information, forecasts, and
alerts to users across the country. The FloodWatch India App, developed and maintained
by the CWC, provides near real-time information and presently disseminates flood
forecasting information (water levels) for 200 flood forecasting stations across the country,
near real-time water levels for an additional 500+flood monitoring stations, and live storage
status of 150+major reservoirs, thereby enabling continuous situational awareness for
various stakeholders. The application serves as a vital decision-support tool for Disaster
Management Authorities at the Central, State, District, and Local levels, besides being
accessible to the general public. Timely availability of river flow conditions, flood
forecasts, and reservoir storage data strengthens preparedness, early warning, and
coordinated response during flood situations. Since its launch, CWC has been continuously
sensitizing and engaging stakeholders through various platforms such as workshops,
trainings, review meetings, and conferences to promote wider adoption of the application.
CWC takes immense steps and adopts various dissemination mechanisms to ensure
maximum reach of the flood warnings produced, so that mitigation measures can be
adopted by State Governments, State Disaster Management Authority (SDMA), NationalDisaster Management Authority (NDMA), and the Public. The total number of downloads
till date from the Android (Google Play Store) is 35.1k, while from the iOS (Apple App
Store) is 2.58k. For wider outreach, the app is prominently displayed on the CWC's official
website and showcased in national exhibitions, including the most recent World Trade Fair.
The flood forecasts formulated by CWC are disseminated to all stakeholders through the
Flood Forecasting Website, FloodWatch India 2.0 App, e-mail, WhatsApp, Facebook
(CWCOfficial.FF), X (Twitter CWCOfficial_FF), and the 'CWC Flood Updates' YouTube
channel.
(d) Yes. The IMD provides threshold-based, impact-based forecasts and risk-based early
warnings, which are colour-coded, to all the districts of the country. A suitable colour code
is used to highlight the impact of the severe weather expected and signal disaster
management about the course of action to be taken regarding an impending severe weather
event. IMD's Impact-Based Forecasting (IBF) provides localized risk assessments for
vulnerable populations in advance of extreme events.
CWC monitors the floods in three categories with assigned colors, namely Above Normal-
Yellow(River water level between Warning level & Danger level), Severe-Orange(River
water level between danger level & Highest Flood Level), and Extreme-Red (River Water
Level above Highest Flood Level). As per the Ministry of Home Affairs Standard
Operating Procedure (SOP), Above Normal flood situation is updated on daily basis,
Severe Flood is updated on 6 hourly basis and Extreme Flood is updated on 3 hourly basis.
Sachet is disseminating alerts, which are colour-coded. SDMAs are converting the
forecast/warnings received from five Warnings & Forecast generating Agencies (AGAs)-
India Meteorological Department (IMD), Central Water Commission (CWC), Indian
National Centre for Ocean Information Services (INCOIS), Defence Geoinformatics
Research Establishment (DGRE), and Forest Survey of India (FSI) into impact-based alerts
before dissemination on the Sachet platform.
(e) Yes, since inception, Sachet disseminates alerts to all States & UTs, and till now
approximately 89 thousand alerts have been generated on the SACHET Platform, and
11000 Crore SMSs have been sent to the citizens. At present, there are nearly 13.98 lakh
Mobile App Users and 31.57 thousand Browser Notification users in the country.
NDMA regularly undertakes targeted campaigns to inform, educate, and raise public
awareness about various hazards and disaster management initiatives, including the
SACHET App/Portal.
Awareness about the SACHET App/Portal is being disseminated consistently through
electronic and print media, specialized field-based outreach activities such as awareness
van campaigns, Nukkad Natak, focused social media campaigns, proactive sharing of the
QR code across digital and print events, including Maha Kumbh 2025 and the India
International Trade Fair (IITF).
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