Observed arrival · 2026-10-06
Helada’s parcel-level frost alerts
Helada is a prototype that adjusts frost forecasts for individual rain-fed maize parcels in Mexico’s Toluca valleys and sends alerts by WhatsApp voice and text.
○Open
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$Paid
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✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- Rain-fed maize growers in the Toluca Valley
- Worth noticing
- The team reports 57.9% of frost nights detected near an SMN station, versus 24.3% for the regional forecast, with five false alarms per 100 frost-free nights.
Field notes
The page says the model is 372 KB and can run on a phone, including without signal. Its reported comparison is sharply location-dependent: near an SMN station it detects 57.9% of frost nights versus 24.3% for the regional forecast, while far from a station both methods are around 32%. The site describes a loss packet that organizes voice notes and photos into a PDF checklist, but leaves any support decision to the Secretaría del Campo.
Observed signals
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Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
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