Guide

How the verdict works

GoNoGo Weather compares live conditions to the limits you set for each factor and returns one clear answer: GO (within your limits), CAUTION (one or more factors are marginal), or NO-GO (at least one factor exceeds your limit). The overall verdict is the worst single factor — the most dangerous condition is the one that decides the call. For a route or trip, we check points along the way and return the worst leg.

Getting started in three steps

• Create your profile. Pick your vertical and set up your boat, aircraft, or activity. During a trial, all three are unlocked so you can try each.
• Set your limits. Each factor has a GO limit and a CAUTION limit. Start from the preset for your equipment and adjust to your own experience and risk tolerance. You can change these anytime from settings.
• Check before you go. Enter a location (or use your device location) and read the verdict, the factors that drove it, and any caveat. Then make your own call.

Marine

Set limits for wind, waves, and visibility for your boat type. GoNoGo pulls live NDBC buoy observations and NWS marine forecasts, factors in gusts, and scans for Small Craft Advisories and storm/gale/special marine warnings (any active warning is treated as at least CAUTION, and storms as NO-GO). Add a home port and a planned destination to get a worst-leg trip verdict. Always keep a VHF weather channel on and confirm against official marine forecasts.

Aviation

Set your personal minimums — ceiling, visibility, crosswind component, and gust — from your rating and aircraft. GoNoGo decodes the METAR and TAF for your airport, computes runway-relative crosswind and density altitude, and layers hazards (thunderstorms, icing, turbulence, SIGMETs). Not sure what a term means? Tap the info icon next to any limit. This is decision support only — it is not a substitute for an official Flight Service (1-800-WX-BRIEF) or ForeFlight briefing, NOTAMs, or your preflight planning under 14 CFR 91.103.

Outdoors

Choose an activity preset and set limits for wind, precipitation, heat index, wind chill, air quality (AQI), and UV. GoNoGo checks live conditions plus lightning risk and daylight/sunset timing, and tiers each factor against your limits. Confirm against official forecasts and local advisories (heat, air quality, avalanche, fire) before heading out.

Where the data comes from — and its limits

• Sources: NWS/NOAA and NDBC buoys (marine + outdoors), aviationweather.gov (aviation), and Open-Meteo (outdoor air quality + UV).
• Coverage is the United States today; outside the US, expect gaps.
• It can be wrong. Government feeds update on their own schedules and can lag real conditions or be briefly unavailable. Treat every verdict as a fast gut-check, never as ground truth.

Questions? See the FAQ or email support@gonogowx.com.