Fri, 24 Mar 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 22/13
ALLDAYS 23/19
BEAUFORT WEST 38/13
BELA-BELA 26/16
BETHLEHEM 25/13
BISHO 30/15
BLOEMFONTEIN 29/16
CALVINIA 35/18
CAPE ST LUCIA 22/21
CAPE TOWN 28/15
CLANWILLIAM 36/19
DE AAR 33/17
DURBAN 25/18
EAST LONDON 23/18
ERMELO 20/13
FAURESMITH 32/16
FICKSBURG 25/12
GEORGE 24/15
GRAAF-REINETT 38/13
GRAHAMSTOWN 29/12
HERMANUS 27/14
JOHANNESBURG 20/14
JOUBERTINA 31/12
KIMBERLEY 33/19
KLERKSDORP 26/17
KOMATIPOORT 29/20
KROONSTAD 26/15
LADYSMITH 27/15
LANGEBAAN 24/16
LEPHALALE 28/18
LYDENBURG 24/16
MAFIKENG 25/17
MUSINA 26/19
NELSPRUIT 23/16
NEWCASTLE 24/15
OUDTSHOORN 38/14
PAARL 32/17
PHALABORWA 26/19
PIETERMARITZBURG 24/14
PLETTENBERG BAY 21/16
POLOKWANE 24/16
PORT ALFRED 24/16
PORT ELIZABETH 23/16
PORT ST JOHNS 24/19
POTCHEFSTROOM 25/17
PRETORIA 25/15
QUEENSTOWN 34/12
RICHARDS BAY 24/21
ROBERTSON 38/13
RUSTENBURG 27/17
SASOLBURG 22/15
SKUKUZA 28/21
SOWETO 20/13
SPRINGBOK 21/14
STILBAAI 24/16
SUTHERLAND 31/12
TZANEEN 20/16
ULUNDI 27/17
UMTATA 26/14
UPINGTON 36/23
VEREENIGING 21/14
VREDENDAL 30/12
VRYBURG 30/18
WELKOM 28/16
WITBANK 19/13
WORCESTER 36/15

 

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