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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 18/11
ALLDAYS 23/14
BEAUFORT WEST 31/05
BELA-BELA 27/10
BETHLEHEM 25/07
BISHO 24/09
BLOEMFONTEIN 30/10
CALVINIA 26/09
CAPE ST LUCIA 27/19
CAPE TOWN 16/08
CLANWILLIAM 13/06
DE AAR 24/07
DURBAN 24/14
EAST LONDON 19/13
ERMELO 26/11
FAURESMITH 25/10
FICKSBURG 24/11
GEORGE 15/09
GRAAF-REINETT 20/06
GRAHAMSTOWN 16/08
HERMANUS 14/09
JOHANNESBURG 27/12
JOUBERTINA 14/05
KIMBERLEY 28/12
KLERKSDORP 30/15
KOMATIPOORT 33/15
KROONSTAD 28/15
LADYSMITH 30/13
LANGEBAAN 16/09
LEPHALALE 33/15
LYDENBURG 29/10
MAFIKENG 31/15
MUSINA 33/12
NELSPRUIT 28/07
NEWCASTLE 30/16
OUDTSHOORN 17/08
PAARL 13/07
PHALABORWA 33/14
PIETERMARITZBURG 31/13
PLETTENBERG BAY 17/11
POLOKWANE 31/09
PORT ALFRED 19/12
PORT ELIZABETH 17/12
PORT ST JOHNS 21/12
POTCHEFSTROOM 30/15
PRETORIA 29/12
QUEENSTOWN 26/06
RICHARDS BAY 28/16
ROBERTSON 13/07
RUSTENBURG 32/14
SASOLBURG 29/15
SKUKUZA 32/16
SOWETO 27/12
SPRINGBOK 26/10
STILBAAI 15/09
SUTHERLAND 11/-1
TZANEEN 32/10
ULUNDI 30/11
UMTATA 25/10
UPINGTON 25/10
VEREENIGING 28/15
VREDENDAL 13/07
VRYBURG 30/14
WELKOM 26/13
WITBANK 26/09
WORCESTER 13/06

 

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