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Weather models (meteoblue)

Third party models

Compare our forecasts with observational data for the last days with our Short-term Verification for Supuru de Jos.

Weather models comparison for Supuru de Jos

  • Every model is assigned one colour that is used in all diagrams. The legend next to the diagram has a list with the model names and the corresponding colours.
  • The first diagram shows the predicted temperatures for each model. The yellow background indicates daylight. The dashed line represents the average of all models.
  • The second diagram shows precipitation amounts: Blue bars indicate precipitation in mm accumulated over one hour. The bars get darker when more models predict precipitation.
  • Weather icons are used to display the predicted weather conditions in the third diagram. The background is light blue for clear sky, light grey for light clouds, and dark grey for strong clouds.

The variables shown are from direct model output and not scaled to the exact altitude and position of the selected place.

Frequently, forecasts are spot on, sometimes less accurate and a few times they are completely wrong. It would be great to know in advance if the forecast is likely to be correct, but how? All weather forecasts are computed by computer models, and sometimes these differ significantly, which indicates uncertainty and difficulty to make an accurate forecast of the weather. In such cases, the weather forecast is likely to change on a daily basis. Our MultiModel diagram shows the weather forecast of multiple models from meteoblue and others, mostly national weather agencies. Generally, the uncertainty of the forecast increases with the differences between models.

What to do if the forecast is uncertain?

  1. Develop alternatives for your decisions, which are feasible with every possible weather development.
  2. Check forecast updates more frequently.
  3. Check the progress of actual weather more frequently.
  4. Postpone important activities, if they depend strongly on weather.

Forecast limitations

  • Thunderstorms: The exact placement and timing of thunderstorms are almost impossible to predict and the associated amount of precipitation or hail can vary significantly.
  • Stratus clouds: Fog and low clouds are often invisible to most models and to satellites, and as such models may agree despite uncertainty. As a result, models may overestimate sunny conditions in areas prone to fog.
  • Topography: Complex mountain terrain is very challenging for weather predictions. Low clouds and precipitation can rapidly develop there without being detected, and will then not be sufficiently considered in the weather model.

These weather patterns are very difficult to forecast, vary in place and time or depend on local terrain. While locally forecast precipitation does not occur, it might rain just a few kilometres away. A cold front could arrive a few hours later or thunderstorms might or might not develop. Such conditions are error prone and should be handled carefully. In some cases, even different models may not detect such conditions.

Weather models

Weather models simulate physical processes. A weather model divides the world or a region into small "grid-cells". Each cell is about 4km to 40km wide and 100m to 2km high. Our models contain 60 atmospheric layers and reach deep into the stratosphere at 10-25 hPa (60km altitude). The weather is simulated by solving complex mathematical equations between all grid cells every few seconds and parameters like temperature, wind speed or clouds are stored for every hour.

meteoblue operates a large number of weather models and integrates open data from various sources. All meteoblue models are computed twice a day on a dedicated High Performance Cluster.

Model Region Resolution Last update Source

NEMS model family: Improved NMM successors (operational since 2013). NEMS is a multi-scale model (used from global down to local domains) and significantly improves cloud-development and precipication forecast.

NEMS4 Central Europe 4 km 72 h 10:00 EEST meteoblue
NEMS12 Europe 12 km 180 h 22:43 EEST meteoblue
NEMS2-12 Europe 12 km 168 h 13:43 EEST meteoblue
NEMS-8 Central America 12 km 180 h 13:10 EEST meteoblue
NEMS12 India 12 km 180 h 11:27 EEST meteoblue
NEMS10 South America 10 km 180 h 13:23 EEST meteoblue
NEMS10 South Africa 10 km 180 h 12:00 EEST meteoblue
NEMS8 New Zealand 8 km 180 h 10:35 EEST meteoblue
NEMS8 Japan East Asia 8 km 180 h 10:15 EEST meteoblue
NEMS30 Global 30 km 180 h 09:37 EEST meteoblue
NEMS2-30 Global 30 km 168 h 03:12 EEST meteoblue

NMM model family: the first weather model from meteoblue (operational since 2007). NMM is a regional weather model and highly optimised for complex terrain.

NMM4 Central Europe 4 km 72 h 08:45 EEST meteoblue
NMM12 Europe 12 km 180 h 10:02 EEST meteoblue
NMM18 South America 18 km 180 h 00:09 EEST meteoblue
NMM18 South Africa 18 km 180 h 10:33 EEST meteoblue
NMM18 Southeast Asia 18 km 180 h 11:09 EEST meteoblue

Third-party domains: As seen on most other websites

ECMWF-IFS Global 20 km 144 h (@ 3 h) 12:17 EEST European Centre for Medium-Range Weather Forecasts (ECMWF)
ECMWF-ENS Global 30 km 360 h (@ 3 h) 12:38 EEST European Centre for Medium-Range Weather Forecasts (ECMWF)
UKMO-10 Global 10 km 144 h (@ 3 h) 09:36 EEST UK MET OFFICE
UKMO-2 UK 2 km 120 h (@ 3 h) 09:37 EEST UK MET OFFICE
ICON7 Europe 7 km 120 h (@ 3 h) 07:25 EEST Deutscher Wetterdienst
ICON13 Global 13 km 180 h (@ 3 h) 08:35 EEST Deutscher Wetterdienst
ICON2 Germany & Alps 2.2 km 48 h 11:17 EEST Deutscher Wetterdienst
GFS22 Global 22 km 180 h (@ 3 h) 07:32 EEST NOAA NCEP
GFS22 Global 40 km 180 h (@ 3 h) 07:48 EEST NOAA NCEP
GFSENS05 Global 40 km 384 h (@ 3 h) 11:14 EEST NOAA NCEP
NBM North America 2.5 km 180 h (@ 3 h) 13:32 EEST NOAA NCEP
HRRR US 3 km 18 h 13:29 EEST NOAA NCEP
NAM3 North America 3 km 60 h 07:01 EEST NOAA NCEP
NAM5 North America 5 km 60 h 08:21 EEST NOAA NCEP
NAM12 North America 12 km 84 h (@ 3 h) 06:09 EEST NOAA NCEP
FV3-5 Alaska 5 km 60 h 02:31 EEST NOAA NCEP
GEM2 North America 2.5 km 48 h 09:58 EEST Environment Canada
GEM15 Global 15 km 168 h (@ 3 h) 11:39 EEST Environment Canada
AROME2 France 2 km 42 h 07:14 EEST METEO FRANCE
ARPEGE11 Europe 11 km 96 h 07:05 EEST METEO FRANCE
ARPEGE40 Global 40 km 96 h (@ 3 h) 07:32 EEST METEO FRANCE
COSMO-5M Central Europe 5 km 72 h 11:21 EEST AM/ARPAE/ARPAP
COSMO-2I Central Europe 2 km 48 h 11:35 EEST AM/ARPAE/ARPAP
HRMN5 Central Europe 5 km 48 h 08:21 EEST KNMI
MSM5 Japan 5 km 78 h 02:26 EEST Japan Meteorological Agency
WRFAMS-7 South America 7 km 168 h 12:21 EEST CPTEC/INPE

Worldwide coverage

meteoblue domain overview meteoblue weather models cover most populated areas at high resolution (3-10km) and world wide at moderate resolution (30km). The map on the side displays NMM models as red and NEMS models as black boxes. Other colors show third-party models. Global models are not shown. For a single forecast, multiple weather models, statistical analysis, measurements, radar and satellite telemetry are considered and combined to generate the most probable weather forecast for any given location on Earth.

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