The South African Weather Service is warning of severe thunderstorms across Gauteng.

JOHANNESBURG - As severe thunderstorms continue to lash Gauteng on Thursday evening, Johannesburg Emergency Services say parts of the West Rand have already been flooded and trees have fallen across roads.

Officials say they've been dispatched to Soweto where the storms have flooded and damaged homes.

The South African Weather Service has placed the province on high alert, with strong winds and hail forecast as well as flooding in low lying areas.

Emergency service's Robert Mulaudzi is urging motorists to exercise caution.

"Motorists need to be very vigilant. Actually I would advise them just to stop on the side of the road until the storm subsides."

The weather services Jan Vermeulen says the storm is still moving through the province.

"The hailstorm is now over Lanseria but is extending over the Kyalami and Sandton areas. We also expect that there could be localised flooding in places."

One massive #storm #hailstorm #nopower pic.twitter.com/9GvtKMqGPM

Lecinda Weiss (@LecindaWeiss) November 28, 2013



I wonder where is my mom on this #HailStorm :'''''''(

Thabo Baby Kotelo (@ThaboBee) November 28, 2013



Neighbor is pissed #Hailstorm pic.twitter.com/e1UjYnnGxl

Hailstorm in the west rand, lot of cars damaged pic.twitter.com/hMye04XWmE

Hailstorm randfontein tjoooo pic.twitter.com/xjNBJKNrL2

Qiniso M (@Queqiniso) November 28, 2013



Ok the #Hailstorm in Pretoria is childsplay compared to what I've just seen coming from the east rand and krugersdorp.

Valeska Abreu (@Valeska1) November 28, 2013



:( eish " @_Motsoaledi: DUDE!! All the windows ta my house nje, gone!! " @Prada992: Nkare my crib has been shot at ☹ pic.twitter.com/fSzglMjH3h""

Zandi Mzondeki (@ZandiMZK) November 28, 2013



Hectic! #Hailstorm RT @MedixGauteng: Pic of hail damaged car on the West Rand. http://t.co/bItNlcBIk0

Itumeleng Sole (@tumisole) November 28, 2013



@gwalax pic.twitter.com/RBRPU94BsV

George Honiball (@georgehoniball) November 28, 2013



Cloudy with a chance of golf balls!

Hectic hailstorm. Drive safe. Be safe. #Gauteng pic.twitter.com/kAnxGEvpCm

Titus Judah (@TitusJudah) November 28, 2013



All jokes aside. This sounds bad. Take care tweeps. #Hailstorm #Gauteng

Ina Gouws (@ina_gouws) November 28, 2013



#Hailstorm. Reduced visibility. pic.twitter.com/jKnGvsdyUn

#Thunderstorm pic.twitter.com/HpBKyDiyTf

@PigSpotter Hail from the south #storm #hailstorm pic.twitter.com/bNMQEyOD4N

Lecinda Weiss (@LecindaWeiss) November 28, 2013



Massive hailstorm in pretoria near R21 - hail size of golfballs #scary #freakyweather pic.twitter.com/u2O3oRtW5M

Brenden Nel (@BrendenNel) November 28, 2013



#hailstorm is now trending in #Johannesburg http://t.co/WyftiKOh3l