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Snow Forecast DataAgent

Continuously collects snow forecast data from NOAA Weather API for ski resorts to build historical forecast archive.

Why This Matters

Weather services don't archive their snow predictions. This DataAgent captures:

• What snowfall was predicted for each resort
• Temperature and wind forecasts
• Data to analyze "powder day" prediction accuracy
• Historical forecasts no one else has

Data Source: NOAA Weather API

Uses the free, official NOAA Weather API (api.weather.gov):

• No API key required
• 7-day forecasts
• Quantitative snowfall predictions
• Works for any US location (by lat/lon)

Note: NOAA doesn't cover international resorts. Whistler (Canada) coordinates work because NOAA provides forecasts near the border.

Input

Resort Configuration Format

[
{"id":"vail","name":"Vail, Colorado","lat":39.6403,"lon":-106.3742},
{"id":"aspen","name":"Aspen, Colorado","lat":39.1911,"lon":-106.8175}
]

Priority Resorts (Default)

Output Schema

{
"capturedAt":"2026-01-26T14:30:00Z",
"forecastDate":"2026-01-28T06:00:00Z",
"forecastDateLocal":"2026-01-28",
"daysAhead":2,
"resortId":"vail",
"resortName":"Vail, Colorado",
"latitude":39.6403,
"longitude":-106.3742,
"predictedSnowfall":6.5,
"snowProbability":80,
"temperature":28,
"temperatureUnit":"F",
"windSpeed":"10 to 15 mph",
"windDirection":"NW",
"shortForecast":"Snow",
"detailedForecast":"Snow, mainly after 11am. High near 28. Northwest wind 10 to 15 mph. Chance of precipitation is 80%. New snow accumulation of 5 to 8 inches possible.",
"source":"noaa"
}

Scheduled Runs

Run every 12 hours during ski season (November - April):

• Cron: 0 0,12 * * *

Consider disabling May-October when snow forecasts aren't relevant.

Local Testing

cd /home/peteylinux/Projects/Apify/dataagents/snow-forecast-agent
npminstall
mkdir-p storage/key_value_stores/default
echo'{"resorts": [{"id": "vail", "name": "Vail", "lat": 39.6403, "lon": -106.3742}]}'> storage/key_value_stores/default/INPUT.json
npm start

Adding More Resorts

To find coordinates for a resort:

1. Go to Google Maps
2. Right-click on the resort base/village
3. Click the coordinates to copy them
4. Format: {"id": "resort-id", "name": "Resort Name", "lat": 39.1234, "lon": -106.5678}

NOAA API Notes

• Rate limited: 500 requests/hour
• Requires User-Agent header (included)
• Returns GeoJSON format
• May return 503 during high traffic (agent retries automatically)