Wed, 16 Aug 2017
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SA REGIONAL




INFORMATION




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MODELS


WHAT ARE MODELS?

Models are computer programs that predict the weather from data that is collected from the field. Data is fed into computer models which are highly complex mathematical algorithms or better known as numerical models which try and take into account all the possible meteorological variables to predict the growth, decay and speed of weather phenomena as well as temperatures, pressures, winds, etc. for periods from 12 hrs to 20 days in the future.

The models are only as accurate as the data that is fed into them and none are 100% correct and will never ever be able to 100% predict the weather owing to the fact that a certain element of chaos exists in nature that CANNOT be predicted.

Certain models are better than others - links to certain models and their various outputs are given. Most sources of data are similar. For this site's purposes, most data either is sourced from the SAWB or the NWS (National Weather Service of the USA).

SOURCE PRODUCT
NCEP
USA

24-186hr forecasts

250mb Winds, 500mb Hgts & Hgt Tendencies,
700mb Hgts & Precipitable Water,
925mb Winds & Mean Sea-Level Pressure
Latest plots
FNOC, USA GLOBAL SEA SURFACE TEMPERATURES
Current | Climate | Anomaly
COLA/IGES MRF, USA - 10 day temperature outlook
- 10 day precipitation outlook
- 14 day soil moisture outlook
- 2-6 day forecasts

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Goodstuff



Goodstuff
ALEXANDER BAY 00/10
ALLDAYS 00/14
BEAUFORT WEST -1/07
BELA-BELA -1/15
BETHLEHEM -1/09
BISHO -1/12
BLOEMFONTEIN 00/07
CALVINIA 00/02
CAPE ST LUCIA 20/16
CAPE TOWN -1/11
CLANWILLIAM -1/08
DE AAR -1/03
DURBAN 00/15
EAST LONDON 00/16
ERMELO 00/10
FAURESMITH 00/05
FICKSBURG -1/09
GEORGE -1/10
GRAAF-REINETT 00/09
GRAHAMSTOWN 00/10
HERMANUS -1/09
JOHANNESBURG 00/10
JOUBERTINA 00/08
KIMBERLEY -1/07
KLERKSDORP -1/14
KOMATIPOORT 00/17
KROONSTAD 00/12
LADYSMITH 00/17
LANGEBAAN -1/13
LEPHALALE -1/13
LYDENBURG 00/13
MAFIKENG 00/11
MUSINA 00/15
NELSPRUIT 00/13
NEWCASTLE 00/15
OUDTSHOORN -1/10
PAARL -1/06
PHALABORWA 00/17
PIETERMARITZBURG 00/15
PLETTENBERG BAY 00/13
POLOKWANE 00/13
PORT ALFRED -1/14
PORT ELIZABETH -1/15
PORT ST JOHNS -1/15
POTCHEFSTROOM 00/14
PRETORIA -1/12
QUEENSTOWN 00/08
RICHARDS BAY -1/19
ROBERTSON -1/07
RUSTENBURG 00/13
SASOLBURG -1/13
SKUKUZA -1/18
SOWETO 00/10
SPRINGBOK -1/11
STILBAAI -1/11
SUTHERLAND -1/00
TZANEEN 00/14
ULUNDI -1/18
UMTATA 00/13
UPINGTON -1/08
VEREENIGING 00/14
VREDENDAL -1/07
VRYBURG 00/12
WELKOM -1/12
WITBANK 00/10
WORCESTER 00/08

 

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