www.1stweather.com | SA Regional

Thu, 11 Mar 2010

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CAPE TOWN

South Easter Info
The South Easter, or better known as the Cape Doctor, blows mainly during the summer months and makes its first appearance during early spring during the months of August and September and usually lasts until late Summer and early autumn during the months of March and April. Read up about shallow, deep and the black south easter formations.

Coastal Lows
A coastal low is a shallow low pressure system limited to the lower layers of the atmosphere and is formed when the wind blows from theland TO the sea, usually during bergwinds.

Bergwind Info
Bergwind is the South African name for fohn wind or mountain wind. It is a hot, dry wind that blows from the interior of South Africa to the coast and usually is blustery.

Winter rainfall differences around CT
Rainfall around the Cape Peninsula and the Boland varies greatly in space. Newlands is one of the wettest suburbs in the country with an annual rainfall of well over 2000mm (80 inches) while only 30km (18mi) away within view the Cape Flats (Airport) only receives about 550mm (22 inches). So what causes these great differences in the rainfall?

Summer Sea temperature differences around CT
Ever wondered why the ocean temperatures are so cold at Clifton and the Atlantic coastline beaches in summer, while at the same time the waters in False Bay are warm in comparison?

Inversion layers
Weather you live in Cape Town or Joahnnesburg, you will have seen how inversion layers trap smoke, fog and smog near the ground in winter, but did you know it also is one of the causes of the howling SE winds over the Peninsula and determines whether or not the famous "Table Cloth" will form on Table Mountain.

GENERAL

Cold Front Info
Cold fronts are mid-latitude phenomena - meaning they are not tropical in nature and occur mostly south of 25�S or north of 25�N....find out more of these rainbearers....

The Synoptic Chart
Since we started offering you the synoptic charts from the South African Weather Service there have been many queries regarding what all those lines and "H"s and "L"s mean.

The Station Model
The "station" what ? Since we started offering you the synoptic charts from the South African Weather Service there have been many queries regarding what all those lines and black circles with lines sticking into them and those numbers mean.

Tephigrams
A "tephi" what ? If you are a pilot or a meteorologist, you are about the only people on this planet able to decipher this very useful chart. Click on the link to find out more !

El Nino information (SAWS)

Weather Glossary
A comprehensive list of weather terms

INTERNATIONAL

Meteorology (About.com)
Involves many features - articles, chat, bulletin boards, netlinks, and personal responses to inquiries.








	ALEXANDER BAY 28/18 ALLDAYS 34/20 BEAUFORT WEST 33/19 BELA-BELA 33/19 BETHLEHEM 29/12 BISHO 29/19 BLOEMFONTEIN 34/18 CALVINIA 30/16 CAPE ST LUCIA 29/23 CAPE TOWN 23/18 CLANWILLIAM 29/17 DE AAR 34/20 DURBAN 29/22 EAST LONDON 29/23 ERMELO 28/10 FAURESMITH 34/19 FICKSBURG 29/12 GEORGE 27/19 GRAAF-REINETT 30/18 GRAHAMSTOWN 28/20 HERMANUS 25/18 JOHANNESBURG 30/14 JOUBERTINA 26/19 KIMBERLEY 34/21 KLERKSDORP 32/17 KOMATIPOORT 30/17 KROONSTAD 32/14 LADYSMITH 28/11 LANGEBAAN 25/19 LEPHALALE 34/19 LYDENBURG 28/13 MAFIKENG 33/21 MUSINA 35/21 NELSPRUIT 28/14 NEWCASTLE 28/11 OUDTSHOORN 29/19 PAARL 28/16 PHALABORWA 35/21 PIETERMARITZBURG 30/16 PLETTENBERG BAY 25/21 POLOKWANE 31/16 PORT ALFRED 27/21 PORT ELIZABETH 28/23 PORT ST JOHNS 28/19 POTCHEFSTROOM 33/14 PRETORIA 32/16 QUEENSTOWN 29/15 RICHARDS BAY 28/23 ROBERTSON 28/17 RUSTENBURG 32/17 SASOLBURG 32/14 SKUKUZA 31/17 SOWETO 30/14 SPRINGBOK 33/16 STILBAAI 24/20 SUTHERLAND 29/15 TZANEEN 31/17 ULUNDI 30/17 UMTATA 30/16 UPINGTON 36/23 VEREENIGING 32/14 VREDENDAL 28/17 VRYBURG 35/21 WELKOM 34/17 WITBANK 29/15 WORCESTER 28/16