io.peakcam/snow

Tools

• ask

  One natural-language question in, one tool result out, deterministically: the router resolves the resort by name or nickname, picks an intent from the wording (snow, open/closed, forecast, cams, history, compare, where did it snow, percent of normal, profile, regions, alerts) and calls the matching tool. Returns the tool's data, the resort, citation URLs and a dated sentence to quote. Answers `answerable: false` with suggestions rather than guessing. No language model is involved.

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• compare_models

  How each weather model has verified at a resort over the trailing 90 days, graded against measured snow (SNOTEL depth change, clipped at zero), and what each model says for the next 7 days right now. Per model: rank, mean absolute error at day 1/3/7 (cm), bias ratio (total forecast over total measured; above 1 over-forecasts), samples, plus the current 7-day total and horizon. `truthBasis` and `measuredDays` say what the grading rested on; a resort with no measured series has no scores. The PeakCam blend is graded by the same rule and appears as `blend`.

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• compare_resorts

  Side-by-side latest snow, season status and cam counts for 2–6 resorts. Every slug must resolve; an unknown one returns suggestions.

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• find_powder

  Rank resorts by new snow in the last 24 or 48 hours, optionally within one state/province and above a minimum. Pass sourceOnly="snotel" to answer "where did it snow most, measured only" with station data alone. Resorts with no report are left out; zero inches is a measurement. Sources: `snotel` = measured at a USDA NRCS SNOTEL station near the resort (station elevation, not the summit), `open_meteo` = weather-model estimate for resorts without a station.

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• get_alert_options

  How to be told when it snows, without this server writing anything: the powder-alert threshold and schedule, the e-mail, webhook (Standard Webhooks, signed), Atom and iCal channels, the per-resort public Atom feed, the webhook payload contract, and the manage page where a person registers a destination. Pass a slug to get that resort's feed URL.

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• get_cam_timeline

  Archived still frames for a resort's webcams (or one cam) over the last 1–48 hours, as links with capture times, plus the newest storm frame on tape per cam. Only cams whose operator allows archiving appear; PeakCam captures every 6 hours. Use it for "what did it look like this morning" or "show me the last storm". Frames are never returned inline.

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• get_forecast

  Fourteen-day blended snow forecast for a resort: per day the median snowfall across the weather models that reach that day (ECMWF IFS, GFS, GEM, ICON, JMA, Météo-France, UKMO; NBM and HRRR added for US points), the 25th/75th percentile band as snowfallLoIn/snowfallHiIn, and modelCount so you can weigh a far-out two-model day against a near-term nine-model one. `summary` has next 48 h, 7- and 14-day totals and the peak day. US resorts also get the National Weather Service text narrative (`periods`), with its snow amounts replaced by the blend. Weather data by Open-Meteo.com (CC BY 4.0): quote the credit. `available: false` when no model run is stored yet.

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• get_leaderboard

  Resorts ranked on one of four season boards: best-powder-this-week (measured new snow in the last 7 days), season-powder-days (days with ≥ 8 in since Oct 1), deepest-base (latest station or model depth) and season-snowfall (measured new snow since Oct 1), optionally within one state and measured-only. The season boards cover the Northern hemisphere. Answers a dated sentence, the rule in words and rows with source and station. Same data as https://www.peakcam.io/snow-report/{kind}.

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• get_monthly_climatology

  Average snowfall, snow days (≥ 1 in), depth and the biggest storm per calendar month at the resort's SNOTEL station, over the 30 most recent complete winters and, separately, the 10 most recent, with the recent decade as a percent of the 30-winter figure and a note when they differ by more than 10 %. Use it for "which month is snowiest", "how much does it usually snow in January". Resorts without a station normal answer available: false.

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• get_opening_dates

  Season opening and closing dates with status (open / closed / unknown) for every resort, or those in one state/province, soonest opening first. Confirmed dates come from the resort; projected ones are third-party estimates.

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• get_percent_of_normal

  SNOTEL-fed resorts ranked by snowpack relative to normal: snow water equivalent against the station's own 1991–2020 median for today's date, deepest first, optionally within one state. Only measured station readings qualify, inside the 10–300 % band and above 2 in of SWE; early-season noise is withheld, not ranked. Same data as https://www.peakcam.io/snow-report/percent-of-normal.

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• get_resort_cams

  The resort's webcams as links: PeakCam page URL, the operator's stream or page URL, a still-image URL when one exists, and health (live / down / unchecked, from PeakCam's probe, not proof of a live broadcast). Frames are never returned inline.

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• get_resort_conditions

  The latest snow report for one resort with provenance: new snow 24 h / 48 h, base depth, snow water equivalent, percent of normal, 7-day trend, rating, season status, plus a cam summary and the canonical PeakCam URL to cite. Sources: `snotel` = measured at a USDA NRCS SNOTEL station near the resort (station elevation, not the summit), `open_meteo` = weather-model estimate for resorts without a station.

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• get_resort_profile

  Who and where a resort is, without the snow numbers: location and elevations, website and social links, PeakCam's cam page, the SNOTEL station its numbers come from (if any), season status, cam counts, and every URL PeakCam publishes for it (page, JSON, markdown, Atom feed, state hub). Use get_resort_conditions for today's snow.

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• get_season_stats

  Season-to-date for one resort from PeakCam's own daily station record: measured snowfall since the season start (daily new snow = the positive change in station depth, a floor on what fell), days measured, snow days, powder days (8 in or more, the alert threshold), current and deepest base, percent of the 30-winter normal to this day and of the recent decade (with a baselineNote when they disagree by more than 10 %), the same day last year, a 7-day trend and a dated sentence to quote. Use it for "how is the season going", "is this a good year", "how does it compare with last year".

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• get_snow_history

  Daily snow depth, snow water equivalent, precipitation accumulation and temperatures for the last 1–30 days at the resort's station (SNOTEL where there is one, Open-Meteo model otherwise), newest first. Use it for "how has the base changed this week" questions. Pass `season` (`2024-25`, or `current`) for a whole season's daily depth and new-snow rows instead of the last N days; get_season_stats summarises a season.

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• get_stations

  What the instruments near one resort measured, by elevation band (summit / mid / base): up to three stations within 25 km with the network named (SNOTEL, GHCN-Daily, NWS, BC ASWS, ECCC), elevation, distance, the time of the reading and its age, snow depth, new snow, SWE, temperature and wind. Daily networks carry depth; hourly ones carry temperature and wind. Use it for "what is it like at the top right now" and "how old is that number" questions; the snow report itself comes from get_resort_conditions.

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• list_regions

  Every state, province and country PeakCam covers, with resort, reporting, measured (SNOTEL) and cam counts and the hub page URL. Call it to learn the valid `state` values for find_powder, get_opening_dates and get_percent_of_normal, or to answer "where does PeakCam have data".

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• search_resorts

  Find PeakCam resorts by name (or part of one, or a region) and get their slugs with a one-line snow summary each. Call this first when the user names a resort; then use the slug with the other tools. Covers about 150 resorts in the US, Canada, Chile and Argentina.

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Embed this server’s score

Tool count and median score across every tool in this server’s corpus — honest in a way a single cherry-picked tool’s badge wouldn’t be.

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