(IMD) was established in - India Meteorological Department

India Meteorological Department
2. Numerical Weather Prediction (NWP) Centre
Global Forecast System (GFS) at T382L64 ( 35 km) resolution has been implemented at IMD Delhi on IBM based
High Performance Computing Systems (HPCS). The new GFS is running 2 times a day (00 and 12 UTC) with global
data assimilation and forecast for 7 days. This new higher resolution global forecast model and the corresponding
assimilation system are adopted from NCEP, USA.
Weather Research & Forecast (WRF-Var) System : The regional mesoscale analysis system (WRF-Var) is
installed on HPCS at IMD, Delhi with its all components i.e. pre-processing programs, observation assimilation
program (WRF-Var), boundary condition updation and forecasting model. The model runs with 2 domains (27 km
and 9 km) at 00 and 12 UTC and forecasts for 3 days.
WRF Non-hydrostatic Mesoscale Model (WRF-
NMM) for tropical cyclone forecast. Run at the time of
tropical cyclone over the Indian Seas.
Polar WRF for predicting weather conditions over
Antarctica (Maitri), implemented in IMD in October
2010. Forecast of 10m winds and 2m Temperature for
24 hours over Maitri region.
Extreme Temperature Forecasting : IMD from beginning of 2010 has implemented extreme temperature (Maximum
& Minimum) deterministic forecast for two weeks and the monthly probability forecast of extreme temperatures
using the ensemble members of coupled model outputs.
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Forecast maximum temperature ( C) anomaly
Based on 08 Apr 2010, valid for 12-18 Apr 2010
0
Forecast minimum temperature ( C) anomaly
Based on 30 Dec 2010, valid for 3-9 Jan 2011
Porbability (%) of Below Normal Maximum Temp
Valid for December 2010 (Based on Nov. 2010)
Porbability (%) of Below Normal Minimum Temp
Valid for December 2010 (Based on Nov. 2010)
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