Rainfall Thresholds

Overview

The rainfall threshold system monitors weekly, monthly, and seasonal forecast data against configured limits. Alerts can be set for:

• Total (Amount) — Trigger when rainfall exceeds or falls below an absolute mm threshold.
• Anomaly — Trigger when the departure from the long-term mean exceeds a set percentage or absolute value.
• Exceptional Probability — Trigger when the probability of exceeding the 90th/95th/99th percentile exceeds a set threshold.

Check Command Options

python manage.py check_rainfall_thresholds
python manage.py check_rainfall_thresholds --type week
python manage.py check_rainfall_thresholds --date 2025-01-15
python manage.py check_rainfall_thresholds --days-back 7
python manage.py check_rainfall_thresholds --dry-run    # Preview without saving

Alerts Dashboard

View and manage rainfall alerts at /rainfall/alerts/.