ASOS surface stations
≈950 U.S. sites · 24/7Wind, temperature, dew point, pressure, visibility, clouds and precipitation at airports.
NWS source ↗Weather prediction already mixes specialized sensor networks, classical physics, machine learning and human judgment. The missing piece is not one magic sensor—it is better fusion and honest uncertainty.
Wind, temperature, dew point, pressure, visibility, clouds and precipitation at airports.
NWS source ↗Maps precipitation and wind. Dual polarization helps identify precipitation type, intensity and tornado debris.
NOAA source ↗Measures water in the surface soil—the land reservoir that controls evaporation and plant water supply.
NASA source ↗Soil moisture at several depths plus temperature, humidity, sun, wind, rain and pressure.
USDA source ↗Profiles winds and humidity above us while ocean platforms track the heat and moisture below storms.
Machine-learning forecasts run four times daily, in 6-hour steps, out to 15 days on an approximately 0.25° grid.
ECMWF source ↗Reject broken sensors, align timestamps and assign confidence from health, recency and location.
Fuse observations with the last forecast to estimate one 3D atmosphere, land and ocean starting state.
Physics models solve fluid and energy equations. AI models learn how weather fields evolve from past data.
Perturb the starting state and model assumptions. The spread measures forecast uncertainty.
Correct local bias, compare with recent outcomes, then issue probabilities, alerts and explanations.
A wet landscape spends more solar energy evaporating water and can cool/moisten the lower atmosphere. A dry landscape sends more energy into heating the air. The exact storm response depends on winds, stability and the larger weather pattern.
A credible “best possible” forecast is not one model claiming certainty. It is a continuously scored team of physics, AI and local observations. Only independent backtesting can prove whether it wins.
For every observation, compute q = health × recency × spatial relevance. Bad or stale signals lose influence.
Assimilate atmosphere, ocean, soil moisture, snow, vegetation and urban heat across space and time.
Use multiple physics and AI models, then perturb initial conditions and uncertain processes—not just one “favorite” model.
Estimate evapotranspiration from soil moisture, leaf area, solar energy, humidity and wind; feed that vapor and cooling back into the atmosphere.
Train corrections separately by place, lead time and weather regime. A coastal thunderstorm should not share one bias rule with inland winter fog.
Choose model weights from recent Brier score/CRPS skill, normalize them, and publish threshold chances plus 10th–90th percentile ranges.