Numerical Weather Prediction

Numerical Weather Prediction (NWP) have become a significant resource for weather forecasting, decision support systems, and other various applications dependent on meteorological information.

In a nutshell, a NWP model is a sophisticated set of computer programs containing mathematical and physical equations/algorithms that describe the atmosphere and how it will change over time in order to produce meteorological forecasts.

The initial condition for an NWP forecast comes from the Analysis, which is constructed by assimilating various meteorological observations into the model. The quality of the analysis (and therefore the forecast) depends not only upon the methods used, but also on the quality of the observations. Observations covering land, ocean areas, and the upper atmosphere are all important.

Depending on the application and need, multiple types of NWP models are commonly used, from global scale models that produce forecasts as far out as 15+ days with 15-100km resolution to regional or mesoscale models that produce shorter scale forecasts with much higher spatial resolution and more frequent output.

Related Stories

Storm hits the beach in the Bahamas
Success Story | Sep 26th 2017

Making the Bahamas Stormproof

With a modern weather forecasting network, covering the whole expanse of the country, The Bahamas will be able to keep its citizens and numerous...
Read more

Related Products

Vaisala Ceilometer CL31

Ceilometer CL31

for cloud height detection
Vaisala Ceilometer CL31 measures cloud base height and vertical visibility in all weather - good or bad. Backscatter...
PTB110 Barometer

PTB110 Barometer

for Industrial Use
PTB110 is designed both for accurate barometric pressure measurements at a room temperature and for general environmental pressure...
Vaisala PTB330 Digital Barometer

Digital Barometer PTB330

for Professional Meteorology, Aviation, and Industrial Users
This PTB330 barometer - designed for a wide range of high-end atmospheric pressure...