Stormscope

Get current weather conditions for a US location. Use when: "What's the weather right now?", "How hot is it?", "Is it windy?" detail="standard": temperature, feels-like, dewpoint (or frost_point when <= 0C), humidity, wind, sky, visibility, pressure. detail="full": adds cloud layers, present weather, raw METAR. Omit lat/lon to use configured primary location. units: "us" or "si" for base system, with optional field overrides: "us,pressure:mb,wind:kt". Fields: temperature (f|c), pressure (inhg|mb), wind (mph|kt|kmh|ms), distance (mi|km), accumulation (in|mm|cm).

Get forecast for a US location. Use when: "What's the forecast?", "Will it rain?", "Weather this week?" mode="daily": 12-hour day/night periods with narrative forecasts (default). mode="hourly": hour-by-hour temperature, precip chance, wind. mode="raw": gridpoint time-value series for temperature, dewpoint, wind, precip, sky cover. days (1-7) controls daily mode. hours (1-48) controls hourly mode. Omit lat/lon to use configured primary location. Note: the main temperature and wind fields in daily/hourly periods come from NWS pre-formatted data and are always in Fahrenheit/mph. The units parameter affects enriched fields: dewpoint/frost_point, feels_like, pressure, and snow/ice accumulation. Use mode="raw" for full unit-agnostic gridpoint data. units: "us" or "si" for base system, with optional field overrides: "us,pressure:mb,wind:kt". Fields: temperature (f|c), pressure (inhg|mb), wind (mph|kt|kmh|ms), distance (mi|km), accumulation (in|mm|cm).

Get active weather alerts for a US location. Use proactively at conversation start. Also: "Any warnings?", "Is it safe to travel?" severity_filter: "Extreme", "Severe", "Moderate", or "Minor" to filter. detail="standard": event, severity, headline, description, instructions. detail="full": adds VTEC codes, polygon geometry, areaDesc, sender. Omit lat/lon to use configured primary location. units: accepted for API consistency but does not affect alert output. Alert text is returned as-is from NWS.

Check SPC severe weather outlook for a US location. Use when: "Severe weather risk?", "Storm outlook?", "Should I worry about storms?" outlook_type="categorical": risk level (NONE/TSTM/MRGL/SLGT/ENH/MDT/HIGH). outlook_type="tornado"/"wind"/"hail": probabilistic hazard percentage + significant flag. day: 1=today, 2=tomorrow, 3=day after. Omit lat/lon to use configured primary location. units: accepted for API consistency but does not affect SPC outlook output. Risk levels and probabilities are unitless.

Get CONUS-wide SPC severe weather risk areas. Use when: "Any severe weather in the US?", "National storm outlook?" Returns all active risk areas with human-readable region descriptions (e.g. "central Oklahoma", "northern Texas"). No lat/lon needed. day: 1=today, 2=tomorrow, 3=day after. units: accepted for API consistency but does not affect outlook output. Risk levels and region descriptions are unitless.