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2016-11-06: Area FR: problem with ISP connection from home to webserver.
2016-12-11: Area NL/FR: No forecast for 'today' ('tomorrow' was generated). Unknown reason.
2017-01-30: Area NL/FR: Added HSTS header for https enforcement.

Regional   Atmospheric   Soaring   Prediction
Boundary Layer Information Prediction MAP
The Netherlands, North Belgium and Northwest Germany

The atmospheric Boundary Layer (BL) is the vertical region above the surface within which air has been mixed by thermal or windshear eddies, i.e. the region where gliders, hanggliders and paragliders normally fly. The RASP BLIPMAP model is developed by Dr. John W. (Jack) Glendening and is a WRF model specifically adapted for these gliders. The basic parameters are described here and all parameters here. A description of all parameters in German can be found here. If you have any remarks or questions, please email rasp@blipmaps.nl.
The model for today and tomorrow starts at 00 UTC and for the day after tomorrow at 06 UTC. For today and yesterday the results are available in 2 resolutions, 4 km ("coarse grid") and 1.3 km ("fine grid"). The area that's computed using the fine grid is much smaller than the area that's computed using the coarse grid. For tomorrow and the day after tomorrow, results are only available using the coarse (4 km) grid.
The results are available for today at 08:30 local time, for tomorrow at 09:30 and for the day after tomorrow at 10:30 at the latest and depending on the weather sometimes up till 30 minutes earlier. Animations have only been made for those parameters of which the legenda doesn't change througout the day. After midnight all results are copied to one day earlier. Due to this until 10:30 no results are available for the day after tomorrow. How actual the forecast is can be derived from the number of hours that is noted in each picture before the text "hrFcst@". This is the difference between the model starttime and the time at which the forecast is valid. If you have difficulties distinguishing colors then thishelps.

Other areas for which RASP BLIPMAP predictions are available on this server: North- and Central France
Overview of areas for which RASP BLIPMAP predictions are available world-wide

PARAMETERS [Description] Yesterday (coarse grid) Yesterday (fine grid) TODAY (COARSE GRID) (local time) Today (fine grid) Tomorrow The day after tomorrow
Thermal:
Surface Temperature Animation 0830
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Normalized Surface Sun Animation 0830
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Height of Boundary Layer Top Animation 0830
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Height of Critical Updraft Strength (<0,9 m/s) Animation 0830
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Maximum Thermalling Height including cloudbase limitations Animation 0830
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Thermal Height Uncertainty Animation 0830
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Thermal Updradft Velocity for 0,9 m/s sinkrate Animation 0830
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Buoyancy/Shear Ratio Animation 0830
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Thermal Updraft Velocity and B/S ratio Animation 0830
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Wind:
Surface wind Animation 0830
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Boundary Layer Average Wind Animation 0830
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Wind at the Boundary Layer Top Animation 0830
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Boundary Layer Wind Shear Animation 0830
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BL Convergence Animation 0830
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Height at which BL Max. Up/Down Motion occurs Animation 0830
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Clouds:
Cumulus Cloudbase where CuPotential>0 Animation 0830
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OvercastDevelopment Cloudbase where ODpotential>0 Animation 0830
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BL Cloud Cover Animation 0830
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Surface Dew Point Temperature Animation 0830
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CAPE Animation 0830
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1 hr Accumulated Rain Animation 0830
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Wave/Upper-level:
Vertical Velocity at 850 mb (~1500 m) Animation 0830
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Vertical Velocity at 700 mb (~2500 m) Animation 0830
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Vertical Velocity at 500 mb (~5800 m) Animation 0830
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Vertical Velocity Slice through location of Max. Vertical Velocity at wind-parallel angle Animation 0830
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Soundings and locations:
AMS (Amsterdam) Animation 0830
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EIN (Eindhoven) Animation 0830
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GRO (Groningen) Animation 0830
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DUS (Dusseldorf) Animation 0830
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BRE (Bremen) Animation 0830
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KAS (Kassel) Animation 0830
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HAN (Hannover) Animation 0830
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HAM (Hamburg) Animation 0830
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ERF (Erfurt) Animation 0830
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MAG (Magneburg) Animation 0830
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BRU (Brussel) Animation 0830
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LUX (Luxemburg) Animation 0830
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FRA (Frankfurt) Animation 0830
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NUR (Nurnberg) Animation 0830
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LIL (Lille) Animation 0830
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LML (Lemelerveld) Animation 0830
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Other:
Ground level  

50m

10m
Experimental:
Potential flight distance   Total