{
  "endpoint": "/heatwave-v2/data/api/v1/",
  "version": "1.0",
  "fields": {
    "d": "district name",
    "m": "mandal name",
    "fd": "forecast date YYYY-MM-DD",
    "ld": "lead days (0 = run-day forecast, 1 = next day, ...)",
    "tier": "GREEN | YELLOW | ORANGE | RED | MAROON",
    "tmax": "MOS-corrected Tmax \u00b0C for this mandal-day",
    "tmin": "forecast Tmin \u00b0C",
    "anom": "Tmax departure from 30-yr normal \u00b0C",
    "hi": "Heat Index \u00b0C (Rothfusz)",
    "ehf": "Excess Heat Factor (Nairn 2013)",
    "imd": "IMD HW classification: none / hw / shw / extreme",
    "dur": "consecutive-days of HW exceedance ending today",
    "imp": "0-100 impact score (tier \u00d7 HVI \u00d7 duration)",
    "hvi": "Heat Vulnerability Index 0-100",
    "phw": "ensemble probability HW (0-1, 6 model members)",
    "psw": "ensemble probability SHW"
  },
  "tier_meanings": {
    "GREEN": "Normal - no advisory",
    "YELLOW": "Hot day caution",
    "ORANGE": "Heat wave",
    "RED": "Severe heat wave",
    "MAROON": "Extreme emergency"
  },
  "update_cadence": "Daily at ~10:35 IST after IMD GFS pipeline finishes",
  "auth": "Public read-only. CORS open. Rate limit: none enforced.",
  "contact": "APSDMA RS & GIS Lab"
}