Harvora™ model-card brief
Hail-conducive conditions for New Zealand horticulture model card
This model card documents the method, evidence target and limitations for hail-conducive conditions for new zealand horticulture. This is a regional convective proxy, not observed or block-level hail. Hail is rare, so the screen deliberately errs toward flagging conditions rather than staying quiet, and only 6 hail-only events were held out — below the 50-event evidence gate, so observed-hail collection stays fail-closed until that gate is met.
Direct answer
What this supports
This is a regional convective proxy for hail-conducive conditions at block coordinates — a conditions screen, with observed hail deliberately kept separate.
Intended for New Zealand growers, technical partners, lenders and insurers.
Evidence and method
How the signal is formed
Forecast convective inputs are evaluated at block coordinates on a regional weather grid and sampled as a probability distribution.
Evidence grade: ESTIMATE
Weather-benchmark measured today; every grower outcome logged in the product feeds the field benchmark it is measured against next.
Boundary
How to read this evidence
This is a regional convective proxy, not observed or block-level hail. Hail is rare, so the screen deliberately errs toward flagging conditions rather than staying quiet, and only 6 hail-only events were held out — below the 50-event evidence gate, so observed-hail collection stays fail-closed until that gate is met.
Sources and related evidence
- Open-Meteo historical forecast API · SOURCED
- Harvora public technical brief · SOURCED
- Harvora source register · SOURCED
Published 25 August 2026 · Last reviewed 25 August 2026 · Harvora technical review
Apply it to your operation