Vineyard Alerts

LuxWX evaluates forecast data every 15 minutes and calculates a frost risk percentage for each of your plantings. When the risk crosses your threshold, you're alerted — often hours before actual freezing occurs.

Because risk is calculated per planting, you can set different thresholds based on variety susceptibility: a cold-sensitive Pinot Noir might alert at 40% risk, while a hardy Cabernet alerts at 70%.

• Run sprinklers for frost protection
• Activate wind machines (if equipped)
• Apply frost cloth to vulnerable blocks
• Monitor vines for damage after frost events

Cold hardiness alerts go beyond frost — they assess risk of permanent vine damage from deep cold events, factoring in your variety's known cold tolerance thresholds.

LuxWX accumulates hours of favorable conditions for each disease type: temperature, humidity, and leaf wetness duration. When accumulated hours cross a threshold, a disease pressure alert fires.

This is calculated per planting because variety susceptibility varies — some grapes are more prone to powdery mildew than others.

• Powdery Mildew — Favored by warm days (70–85°F), moderate humidity, and no rain. The most common vineyard disease.
• Downy Mildew — Favored by warm, wet conditions. Often appears after prolonged rain events.
• Botrytis (Gray Mold) — Favored by cool, humid conditions with poor air circulation. Critical near harvest.
• Black Rot — Favored by warm, wet conditions. Most damaging early in the growing season.

Apply a protective fungicide spray. LuxWX pairs disease alerts with spray window alerts so you know when conditions are favorable for application.

LuxWX evaluates forecast data and calculates a spray confidence percentage based on wind speed, temperature, humidity, and rain probability. When conditions are favorable (confidence ≥ 75%), you're alerted with a recommended window.

Example: "Favorable Spray Window: Wednesday 2 PM – 6 PM (Good conditions for application)"

• Wind speed under 15 mph (prevents drift)
• Temperature between 60–80°F (optimal absorption)
• Moderate humidity (not extreme)
• Rain probability under 20% (spray won't wash off)

Spray drift risk is a current conditions alert based on VPD (Vapor Pressure Deficit). It warns when conditions right now are too dry and windy for safe spraying — droplets will evaporate or drift. Spray window alerts look at the forecast to find good future windows.

Vineyard heat alerts use forecast data to predict heat stress conditions that can damage grapes or impair ripening. Set different thresholds by variety — heat-sensitive grapes get earlier warnings.

Forecast-based alerts for severe weather, hail risk, and storm severity. These help you decide when to deploy protective netting or take other precautions. Separate from the standard weather station hail detection (which fires only when hail actually hits your sensor).

LuxWX tracks ripening indicators and weather windows to alert when harvest conditions are favorable or when a closing weather window means you should pick soon. Scoped per planting since varieties ripen at different rates.

Based on your parcel's soil type and weather forecasts, LuxWX models soil moisture depletion. You're alerted when irrigation is recommended (moderate deficit) or urgent (approaching wilting point). Scoped per parcel since soil type varies.

Vineyard alerts can be configured at three levels:

• Vineyard level — Applies to the whole vineyard (e.g., spray windows)
• Parcel level — Specific to a block/parcel (e.g., irrigation — soil type matters)
• Planting level — Specific to a grape variety in a parcel (e.g., frost risk — cold hardiness varies by variety)

This means your Pinot Noir frost alert can have a different threshold than your Cabernet frost alert in the same vineyard.