GPS or town search · OPEN-METEO WEATHER
Insufficient near-term guidance to assess the main development risk.
Forecast confidence: Unavailable · model agreement: UnavailableWeatherBase Development Risk is the existing Storm Engine’s relative 0–100 index evaluated for the next three hours, with eligible nearby station trends. It is NOT a literal probability that a storm will occur. The index measures storm-development ingredients, not the severity or likelihood of heat, frost, wind or other individual hazards. A strong non-convective hazard can coexist with a low storm index. Today’s forecast and all-day storm assessment below use their own clearly labelled time window.
The dominant icon uses corroborating near-term evidence, relevance and persistence. CAPE alone cannot activate a thunderstorm icon. Hail requires a thunderstorm-with-hail model code plus precipitation; strong wind alone never implies squalls. State labels are qualitative context: CAPE bands of 300, 1,000 and 2,000 J/kg support Unsettled, Unstable and Highly Unstable; sustained local change can indicate Transitioning. They are not a full atmospheric sounding diagnosis. Missing evidence stays unavailable. Model agreement affects confidence, not the Storm Engine score.
Near-term guidance is incomplete. These are calculated/model signals, not official warnings or confirmed hazards. BME280 measures temperature, humidity and pressure; it does not detect wind, rain, fog, snow, lightning or air pollution.
Heat index uses the existing NOAA shade calculation, separate from Feels Like. Heat categories follow NWS bands: 26.7–32.2°C caution, 32.2–39.4°C extreme caution, 39.4–51.7°C danger, 51.7°C and above extreme danger. Exposure, sunlight, activity and individual vulnerability matter; this is not a personalised health assessment.
Wind badges start at model gusts of 60 km/h; severe wind signal at 110 km/h. Heavy rain needs a rain weather code plus at least 10 mm in a model hour; very heavy rain starts at 25 mm. Fog requires a fog code; dense fog also requires visibility below 200 m. Snow and freezing precipitation require matching codes, cold air and precipitation. These display thresholds do not reproduce official warning decisions.
Frost Risk uses air temperature above 0°C up to 3°C, dew point at most 2°C and within 4°C of air temperature, cloud at most 25%, wind at most 10 km/h and minimal precipitation at night. This is a conservative heuristic for surfaces cooling below air temperature, not observed frost. Freezing air means 0°C or below; it does not confirm road ice. Frost guidance.
Dust, dust storms, smoke, ash, flooding, blowing snow, blizzard and severe cold artwork is preview-only: suitable sources are not connected. No absence-of-hazard assurance is implied.
NWS heat index · Open-Meteo variables · MetService severe-weather context
Atmospheric potential · artwork is symbolic, not detected weather.
Forecast unavailable
Peak rain chance —%Full forecast and storm modelling unavailable without current internet data.
· sky conditions from Open-Meteo
Estimated cloud base is an approximate condensation level: temperature minus dew point, multiplied by 125 metres. AGL means above ground level. It does not confirm clouds are present and is not a measured ceiling or METAR observation. Fresh nearby station temperature and dew point are used together when available; otherwise both come from the selected location’s model. UV and visibility are model estimates, never BME280 measurements.
Heat index uses temperature and humidity for hot conditions in shade; the card switches to model UV below its applicable warm range. Absolute humidity estimates the water-vapour mass in a cubic metre of air. These calculations use fresh nearby station temperature and humidity together, otherwise the selected location’s model data.
Pressure tendency uses elapsed 3-hour changes in hPa, not the absolute pressure alone. Nearby station trends are filtered for noise and missing data; distant locations use their own model pressure. Rising or falling pressure needs support from humidity, dew point, rain and instability before changing the weather assessment. Terrain, sea breezes and atmospheric tides can complicate interpretation in NZ and elsewhere. Scores are heuristic, not locally calibrated predictions.
Moon phase and illumination use SunCalc astronomy; the image shows the nearest of eight phases, oriented schematically for your hemisphere. Its tilt on the actual sky varies. Moon phase does not affect storm scores. Moving the station or changing its altitude/calibration requires updating Settings and rebuilding trend history.
Calculation references: NOAA heat index · Vaisala humidity · SunCalc moon calculations.
Autumn at the selected location. Forecast models and fresh observations carry the short-range signal.
Regional context is background only. No front, trough or low is diagnosed from three sensors alone. ENSO adds no points to short-range storm scores.
Current official ENSO information unavailable. Forecasting continues normally.
Four detailed periods with rain amounts, wind and timing details. Icons show dominant weather; temperature is a range. The separate storm score preserves the strongest hourly signal, even when that risk is brief.
Storm window: Timing unavailable. Timing reflects model guidance, not a confirmed arrival. Rain and gust times are approximate local-time windows; individual showers can arrive earlier or later.
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Model agreement · UnavailableFrom Unavailable → Unavailable
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—Unavailable · —/100Strongest hourly development signal0/3 forecast hours available · incomplete period
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Model agreement · UnavailableFrom Unavailable → Unavailable
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—Unavailable · —/100Strongest hourly development signal0/3 forecast hours available · incomplete period
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Model agreement · UnavailableFrom Unavailable → Unavailable
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—Unavailable · —/100Strongest hourly development signal0/3 forecast hours available · incomplete period
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—Unavailable · —/100Strongest hourly development signal0/3 forecast hours available · incomplete period
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Rain totals cover each model period; rain chance is the highest hourly chance, not a combined 3-hour probability. Brief storm signals are preserved rather than averaged away.
Hourly forecast unavailable.
Not enough overlapping model data. 0 comparable variables. Missing values stay unavailable. Agreement compares overlapping hourly values and weather changes; it does not average or replace the primary forecast. Two-model comparisons are capped at Medium.
Confidence is a qualitative interpretation, not a calibrated probability. Models may share inputs; rain probabilities may use ensemble guidance. Local trends affect confidence only for the next 12 hours.
ACCESS-G: Open-Meteo reports BOM open-data delivery suspended
Open-Meteo model documentationForecast unavailable
Peak daytime rain chance —%
When: Timing unavailable
Rain timing unavailable
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Full forecast and storm modelling unavailable without current internet data.
Forecast unavailable
Peak daytime rain chance —%
When: Timing unavailable
Rain timing unavailable
Wind timing unavailable
Full forecast and storm modelling unavailable without current internet data.
Forecast unavailable
Peak daytime rain chance —%
When: Timing unavailable
Rain timing unavailable
Wind timing unavailable
Full forecast and storm modelling unavailable without current internet data.