Lowveld Fire Danger Index (LFDI) 🚧 under development/evaluation 🚧 • Lowveld Fire Danger Index (LFDI) is South Africa's official system for assessing and communicating wildfire risk based on meteorological conditions.
Based on available real data of: temperature (°C), Relative Humidity (%), Wind Speed (km/h), previous Rain height (mm) and Days since rainfall, a Fire Danger Index is calculated according to LFDI method and is presented using the following color scale: Implemented calculations are described in
The SouthAfrican Lowveld Fire Danger Index (LFDI) and Its Applicability in Greece
• Related documents.

 Calculation formulae:
  »  LFDI = (62 - (9 × RH / 20) - (9 × (27 - T) / 10) + 0.8 × WS) × RCF    •   (0 < LFDI ≤ 100)
• T = Air Temperature (°C)
• RH = Relative Humidity (%)
• WS = Wind Speed (km/h)     •    (0 ≤ WS ≤ 50 km/h)
 »  Rain Correction Factor (RCF)     •   (0 < RCF ≤ 1.0)
RCF = 0.62 − 0.0342 × P + 0.000609 × P² − 0.000004 × P³ + 0.1761 × D − 0.01141 × D² + 0.000279 × D³
• P = Rainfall since last rain (mm) (≥3mm)
• D = Days since last rain


Environmental Forest Fire Danger Rating Systems and Indices around the Globe: A Review
PAFPA - Fire Danger Index