ECMWF Europe Forecast Maps

Rain & Pressure

Use Rain & Pressure to follow the relationship between areas of rain and the wider mean-sea-level pressure pattern. The rainfall shading describes precipitation for the preceding six hours, so compare consecutive frames rather than treating one image as a whole-day total. Curving pressure lines help identify lows, highs, fronts and pressure gradients; closely packed lines can indicate a stronger pressure-gradient signal, but they do not replace a dedicated wind warning. Begin with the synoptic structure, then follow the movement of rain bands toward the area of interest. The original ECMWF chart is kept intact: its embedded legend and labels remain the authority for the displayed values and colours.

Z500 / T850

Z500 / T850 is a large-scale pattern chart. Geopotential height near 500 hPa helps show the shape and progression of ridges, troughs and upper lows, while the 850 hPa temperature field adds an air-mass perspective beneath that circulation. The 850 hPa value is not the same as surface temperature at 2 m. Read the flow first: a ridge often favours more settled or warmer conditions, while a trough can support cooler, more changeable weather, depending on the full situation. Then compare successive valid times to see whether the pattern is moving, amplifying or weakening. This is synoptic context rather than a city forecast; use it with surface maps and local forecasts for impacts.

Temperature & Wind

Temperature & Wind combines forecast 2 m temperature with the near-surface 10 m wind field to give a practical view of the air mass and its movement. Look first for broad temperature contrasts, then use wind direction to judge whether warmer, cooler, marine or continental air is being transported into an area. Stronger wind symbols or denser flow features can make the temperature feel different from the numerical value alone, especially in exposed places. Step through the animation instead of reading a single frame in isolation: timing matters when fronts pass or a wind shift changes the local air mass. Use local forecast details for place-specific conditions and warnings.

Temperature Anomaly

Temperature Anomaly shows how the forecast temperature compares with its configured reference climatology, not the expected temperature itself. Positive values indicate conditions forecast to be warmer than that reference; negative values indicate cooler-than-reference conditions. A warm anomaly can occur during cool weather, and a cool anomaly can occur during mild weather, so read this product alongside the Temperature & Wind map. The most useful signal is often the spatial extent and persistence of a departure: compare several frames to see whether an unusual air mass is building, moving or fading. The original chart legend remains the source for the exact anomaly scale and colours.

Rain Accumulation

Rain Accumulation shows cumulative forecast liquid-equivalent precipitation over the period represented by the product, which makes it useful for identifying the broad footprint of prolonged or repeated rainfall. It is not a promise of rain at every moment: a high total may result from one organised event or several smaller periods. Compare the accumulation map with Rain & Pressure to understand the likely timing and structure of the rainfall, and use local forecasts for shorter-term detail. Pay particular attention to coherent wet areas that persist across consecutive runs, while remembering that totals can shift as a weather system evolves and local convective or topographic effects can differ. The complete ECMWF chart remains authoritative for the displayed accumulation scale.

Wind Gusts & Pressure

Wind Gusts & Pressure places the forecast maximum 10 m gust signal beside the surrounding pressure pattern. Gusts describe short-lived peak winds rather than a continuous wind speed, so use them to identify periods and places where stronger bursts are more plausible. Compare the gust pattern with pressure gradients, exposed coasts, mountains and the movement of fronts; these features can help explain why the strongest potential is concentrated in particular areas. Follow successive frames for arrival and departure timing, then check local official warnings where decisions depend on wind impacts. The ECMWF chart’s embedded legend remains the authority for the displayed gust values and colours.

0–6 km Wind Shear + MUCAPE

0–6 km Wind Shear + MUCAPE is a convective-environment map, not a thunderstorm guarantee. Wind shear describes how the wind changes through a deep layer of the atmosphere, while MUCAPE is the most-unstable convective available potential energy for an elevated parcel. Where both ingredients are present, organised convection may be more possible if lifting, moisture, forcing and inhibition also align. High CAPE alone and high shear alone do not guarantee thunderstorms or severe weather. Treat it as broad situational awareness: inspect changes from frame to frame and combine it with radar, satellite, local forecasts and official severe-weather information. Avoid applying a single universal threshold; the complete ECMWF chart and local warning services provide the authoritative operational context.

How to read the ENS Meteogram

ECMWF ensemble Meteograms are location-based forecasts. They show total cloud cover, 10 m mean wind, six-hour precipitation totals and 2 m temperature.

Box-and-whisker ranges show the median, 25th–75th and 10th–90th percentiles, with minimum/maximum whiskers; the ensemble control is shown as a line. Times are UTC, precipitation is accumulated over six-hour periods, and location/orography context matters.