Experimental weather intelligence platform — not for life safety decisions. Always follow NWS official guidance.

SWIS

Severe Weather Intelligence System - AI-Powered Hazard Detection

Live
Updated: --
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Hazards Detected
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NWS Matches
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NWS Warnings
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Match Rate

Active Hazard Predictions

NWS Active Warnings

Hazard Types

Blizzard / Winter Storm
High Wind / Advisory
Dense Fog
Ice Storm
Freeze / Hard Freeze
Snow Squall

About SWIS

SWIS uses Open-Meteo forecast data to independently detect weather hazards before or alongside NWS warnings. It analyzes snowfall rates, wind gusts, visibility, and temperatures across the continental US.

Data: Open-Meteo, NWS