Microproduct Data GuideIntermediate

MET Norway MetAlerts

Official Norwegian weather warnings from MET Norway's MetAlerts service for reviewing affected areas and alert validity.

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At a Glance

Difficulty
Intermediate — some data preparation helps
Size
Tiny · ≤0.01 GB
Formats
GeoJSON, CAP
Access
API
API Key
Not Required
Provider
Norwegian Meteorological Institute
Updates
Near Real Time
Last Verified
Sep 28, 2026
Source Type
Government Source
Data Terms
NLOD 2.0 and CC BY 4.0 with MET Norway attribution.
  • Python Syntax Checked

From Source to Product Signal

Test a Product Idea in Four Steps

MetAlerts publishes official weather warnings in CAP and beta GeoJSON. Start with five features from the current GeoJSON endpoint. Preserve CAP IDs, updates and cancellations when building an alert timeline, and use a distinct client User-Agent. Weather alerts differ from Locationforecast.

1

Check the Setup

  • Python 3.10 or newer
  • An internet connection
  • The requests Python package
2

Access the Data

  1. 1.Read the MetAlerts documentation and MET Norway attribution policy.
  2. 2.Set an identifying User-Agent and request current GeoJSON warnings.
  3. 3.Inspect area, event, and validity before using an alert in a product.
Open Official Source
3

Run the Python Example

Install the packages, then run the notebook cell.

python -m pip install requests

import requests

response = requests.get(
    "https://api.met.no/weatherapi/metalerts/2.0/current.json",
    headers={"User-Agent": "TrilemmaDataCatalogExample/1.0 (https://data.trilemma.foundation)"},
    timeout=30,
)
response.raise_for_status()
for warning in response.json()["features"][:5]:
    details = warning["properties"]
    print(details.get("id"), details.get("event"), details.get("area"))
4

Test a Useful Signal

Inspect Norwegian Weather Alerts

Test whether current alert geometry supports a local warning card.

  1. 01Keep alert ID, event, severity, geometry, and validity interval.
  2. 02Account for CAP updates and cancellations before retaining a warning.
  3. 03Attribute MET Norway and avoid equating an empty sample with safety.

Related Datasets

Dataset Details

Norwegian Meteorological Institute is a government source. Last verified 2026-09-28. Temporal coverage: current official weather alerts.

Geography

Norway

Formats

GeoJSONCAP

Provider

Norwegian Meteorological Institute

Data Terms

NLOD 2.0 and CC BY 4.0 with MET Norway attribution.

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