ORION SIH26083

Safer People. Cooler Cities.

Live Data
API Docs
Delhi NCR Live Weather Active Observing Live

Real-time human thermal stress & early warning

Direct live feed from Open-Meteo High-Resolution NWP with instant WMO UTCI human thermal regulation and ISO 7243 WBGT calculation.

View Safety Advice
Live Heat Stress (UTCI)
--.- °C
Calculating
Air Temperature
40.0 °C
Measured at 2 metres
Relative Humidity
76 %
High Moisture
Wind Speed
2.5 m/s
Light Breeze (9 km/h)
Overall Risk
70.9 / 100
High in crowded areas

Try Different Heat Conditions

See how changes in humidity and temperature change human heat stress.

Air Temperature: 40.0 °C
Relative Humidity: 76.0 %
Wind Speed: 2.5 m/s
Solar Radiation: 650 W/m²

Heat Risk Map

Click any area to inspect risk details and recommended actions.

Risk Level:
Low Moderate High Extreme

5-Day Forecast

Comparing human heat stress against measured temperature.

Hourly Prediction
Heat risk is expected to stay high for the next 5 days. High humidity will keep sweat cooling low during peak hours.

People Most at Risk

Groups that face the highest danger during extreme heat conditions.

High Risk

Outdoor & Delivery Workers

Continuous sun exposure and physical effort without shaded rest increases heatstroke danger.

High Risk

Elderly People (60+)

Body temperature regulation is slower; higher likelihood of heart strain and dehydration.

High Risk

Young Children (<5)

Children absorb heat faster than adults and dehydrate quickly during outdoor playtime.

High Risk

Dense Areas & Slums

Tin roofs and lack of tree cover trap heat indoors, keeping nighttime temperatures high.

Stay Safe in Extreme Heat

  • Drink water regularly: Have water or ORS every 30 minutes, even if you do not feel thirsty.
  • Stay indoors: Avoid direct sun between 11:00 AM and 4:00 PM when heat stress peaks.
  • Wear light clothing: Use loose, light-colored cotton clothes and head covering outdoors.
  • Seek medical help: If you or someone nearby feels dizzy, confused, or unusually weak, move to shade and call 108.

For Outdoor & Delivery Workers

  • Take regular cooling breaks: Rest for 15–20 minutes in shade after deliveries.
  • Carry hydration: Carry at least 2 litres of water with oral rehydration salts (ORS).
  • Avoid peak afternoon heat: Reschedule heavy loading or high-speed deliveries where possible.
  • Check alerts daily: Check the heat warning status on this dashboard before starting shifts.

For Local Authorities

  • Limit heavy outdoor work: Implement mandatory afternoon pauses for construction and road works.
  • Open cooling centres: Open public community halls, libraries, and shaded bus stops.
  • Set up water stations: Dispatch water tankers to high-density informal settlement wards.
  • Alert hospitals: Ready dedicated cooling beds and IV hydration supplies in emergency rooms.

Past Heatwave Check

Demonstrating how early warnings give 3 to 5 days lead time before heat peaks.

D-5 (120h Lead Time)
D-5 (Early Warning) D-4 D-3 (Targeted Aid) D-2 D-Day (Peak Heat)
Normal Forecast (Air Temp)
40.2 °C

Showed only standard watch; missed high moisture danger.

ORION Heat Stress Index
48.6 °C

Elevated to Red Alert 5 days in advance.

Action Taken
Pre-positioned Aid

Water tankers and cooling centers deployed before casualties occurred.

Data Sources

Built entirely on open, scientific, and reproducible public data feeds.

Open-Meteo NWP
5-day hourly numerical weather predictions (0.1° grid resolution)
NASA POWER
40-year historical climatological baseline & solar irradiance
Census of India
Ward-level population, elderly ratio, and outdoor worker density
WMO & ISO 7243
Fiala human thermal polynomial and NIOSH labor work-rest standards