NOAA Tides and Currents
io.github.ryancardin15/noaa-tides-and-currents-mcpNOAA tides and currents: water levels, tide predictions, currents, met data, flooding, sun and moon
Tools · 26
Get observed water levels from a NOAA tide station as a time series. Choose the interval: "6" = standard 6-minute observations (preliminary or verified, max 31 days per request), "1" = 1-minute preli…
Get verified summary water-level products from a NOAA station: - high_low: each day's observed highs/lows with ty = HH (higher high), H, L, LL (lower low). Max 1 year per request. - daily_mean: daily…
Get NOAA harmonic tide predictions (future or past) for a station. interval="hilo" (recommended for "when is high/low tide") returns the daily tide events with type H/L — up to 10 years per request. …
Get observed current speed and direction from a NOAA current meter station. Current stations use alphanumeric IDs (e.g. "cb0102" Chesapeake, "bh0101" Boston Harbor) — NOT the 7-digit water-level stat…
Get predicted tidal currents for a NOAA current prediction station. interval="max_slack" (recommended for navigation) returns the tidal-current events — maximum flood, maximum ebb, and slack water ti…
Get observed meteorological/oceanographic sensor data from a NOAA station. Products: air_temperature, water_temperature, wind (speed/gust/direction), air_pressure, air_gap (bridge clearance to water …
Search the NOAA CO-OPS station directory by capability type, name, and/or state. Filter with: - type: what the station does (waterlevels, tidepredictions, currents, currentpredictions, met, ...) — pi…
Find the NOAA stations closest to a latitude/longitude point, sorted by distance. Use this to answer "what's the tide station near <place>?" — geocode the place to coordinates first, then call this. …
Get a NOAA station's full metadata record: location, state, time zone, tide type, Great Lakes flag, capability flags, and links to available sub-resources. Optionally expand sub-resources inline via …
Get the accepted tidal datum values for a station: the elevations of MHHW, MHW, MTL, MSL, DTL, MLW, MLLW, STND, NAVD88 (where computed), plus GT (great diurnal range), MN (mean range), LAT/HAT (lowest…
Get the harmonic constituents NOAA uses to compute tide or current predictions at a station — the amplitude, phase, and angular speed of each tidal constituent (M2, S2, N2, K1, O1, ...). For water-le…
Get the offsets a subordinate (type "S") prediction station applies to its reference station's predictions. kind "tide": returns refStationId, time offsets for high/low tide (minutes), height offsets…
Get the long-term relative sea level trend at a NOAA station: trend and error (reported by NOAA in mm/yr or inches/decade — the payload's trendUnits field says which), the observation period (startDat…
Get NOAA's Interagency Sea Level Rise Scenario projections for a station (from the 2022 technical report): projected relative sea level (meters or feet, see units field) per decade through 2150 under …
Get NOAA's extreme water level exceedance statistics for a station: the annual exceedance probability levels (e.g. the 1%-annual-chance "100-year" level) and historical extreme events, computed from t…
Get a station's highest recorded water levels: analysis "toptenwaterlevels" returns the ten highest events on record (with date, height, causal event name like "Great New England Hurricane", and categ…
Get NOAA high tide flooding (HTF, "nuisance"/"sunny day" flooding) statistics for a station. Reports: - daily: flood occurrence per day (REQUIRES start_date and end_date, YYYYMMDD) - monthly / season…
Get the moon phase for a date (or each day of a date range if end_date is given): phase name (New Moon, Waxing Crescent, ...), illuminated fraction, age in days within the 29.53-day cycle, distance (k…
Find the date(s) of the next occurrence(s) of a principal moon phase (New Moon, First Quarter, Full Moon, Last Quarter) from a starting date. Use for: "when is the next full moon?", planning around s…
Get sunrise, sunset, solar noon, dawn/dusk (civil), nautical dawn/dusk, astronomical dawn/dusk, golden hour, and day length for a location and date (or each day of a range if end_date is given). Time…
Get the sun's position for a date, time, and location: azimuth (degrees clockwise from north as rendered here), altitude above the horizon (degrees), plus approximate declination and right ascension. …
Find the next occurrence(s) of a sun event (sunrise, sunset, dawn, dusk, solarNoon, night, nightEnd, goldenHourStart, goldenHourEnd, nauticalDawn, nauticalDusk, astronomicalDawn, astronomicalDusk) at …
Get the NWS hourly wind FORECAST (speed, gust, direction — plus wave height where the grid carries it) for a latitude/longitude. Data comes from the NWS forecast grid (api.weather.gov gridpoints — nu…
Get the official NWS Coastal Waters Forecast (CWF) narrative for the marine zone covering a latitude/longitude — day-part wind/seas text ("SE winds 10 to 15 kt... Bay waters choppy"), including Small …
Get curated reference documentation for NOAA CO-OPS concepts and parameters. Topics: - products: Every NOAA CO-OPS data product and which tool serves it - datums: Vertical datums (MLLW, MSL, IGLD...)…
Show how this MCP connection is authenticated: the Perigee account it is linked to (if any), how it signed in (OAuth connector or API key), its rate-limit tier, and the requests-per-minute limit. Use …
Resources · 11
Workflow recipes and common pitfalls for this server.
noaa://guide/getting-started
Every NOAA CO-OPS data product and which tool serves it
noaa://reference/products
Vertical datums (MLLW, MSL, IGLD...) and station applicability
noaa://reference/datums
What english vs metric means per measurement (incl. cm/s currents)
noaa://reference/units
gmt / lst / lst_ldt semantics and restrictions
noaa://reference/time_zones
Valid interval values per product family
noaa://reference/intervals
Station type filters and station ID formats
noaa://reference/station_types
Maximum date-range span per product
noaa://reference/data_limits
Data quality fields (v/s/f/q), flag letters, HH/H/L/LL
noaa://reference/quality_flags
Accepted date formats and parameter combinations
noaa://reference/date_formats
NWS wind & marine forecast tools vs CO-OPS observations
noaa://reference/marine_forecast
Prompts · 4
Produce a tide report (high/low times, current level, context) for a place or station and date.
Assemble tides, currents, wind, weather, and daylight for a location and date — a pre-departure briefing.
Synthesize high-tide-flooding history, extremes, sea level trend, and projections into a flood risk profile for a station.
Summarize everything a NOAA station offers: sensors, datums, products, data availability.
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How to use
Add to your Claude Desktop / Cursor / Cline MCP config:
{
"mcpServers": {
"noaa_tides_and_currents": {
"url": "https://perigeetides.com/mcp",
"transport": "streamable-http"
}
}
}