get_surface_analysis
Identify front and pressure center locations relative to your position, with warm/cold sector detection. Uses WPC surface analysis or forecast charts.
Instructions
Get surface analysis or forecast showing fronts, pressure centers, and warm/cold sector.
Use when: "Where are the fronts?", "Am I in the warm sector?", "Surface analysis?", "Where's the nearest low?"
Returns distance and bearing from your location to nearby fronts and pressure centers (highs/lows). For cold fronts, determines whether you're on the warm side (ahead) or cold side (behind).
product="analysis" (default): WPC coded surface analysis (CODSUS) showing current front positions and pressure centers, updated every 3 hours. Includes pressure values on H/L centers. The day parameter is not used. product="forecast": WPC national forecast chart. day: 1=today, 2=tomorrow, 3=day after.
detail="standard": nearest ~5 fronts, ~4 pressure centers, location summary. detail="full": all features with nearest-point coordinates.
scope="local" (default): location summary only references fronts within ~400km — distant fronts are listed but not described as influencing local weather. Use for typical queries about local conditions. scope="all": no distance threshold — location summary always reports warm/cold sector relative to nearest cold front regardless of distance. Use when asking about the broad synoptic pattern.
Note: this tool reports synoptic-scale features (major fronts, pressure centers). Mesoscale boundaries such as outflow boundaries, sea breezes, and moisture gradients are not included in the CODSUS or forecast chart data sources.
Warm/cold sector detection is approximate (geometric heuristic). CONUS coverage only.
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).
Input Schema
| Name | Required | Description | Default |
|---|---|---|---|
| latitude | No | ||
| longitude | No | ||
| product | No | analysis | |
| day | No | ||
| detail | No | standard | |
| scope | No | local | |
| units | No |
Output Schema
| Name | Required | Description | Default |
|---|---|---|---|
No arguments | |||