Rescuers are evacuating houses and ordering residents to move family, pets and valuables to a safe place.
As water levels rise dramatically, residents in West Wales have been told to turn off the gas, electricity and water and to put in place flood protection.
Firefighters are desperately trying to pump water from built-up areas in an attempt to lower water levels.
Dozens of roads have been closed and police cordons have been positioned as a more torrential time is expected to hit the country.
Milford Haven's piers are "doing all they can to lower water levels" according to police
People have been warned to avoid the Priory area of Milford Haven while emergency crews carry out evacuations.
The Met Office issued yellow weather warnings for wind and rain as it kicks off at 1
Alerts and serious flood warnings were put in place in the south and west of Wales.
The passage of a McDonald's has been pictured as a lake in Haverfordwest and the water consumes the fast food restaurant.
Natural Resources Wales has issued 10 floods.
A flood warning means flooding is possible and residents should be prepared.
NRW says residents should prepare a flood kit for essential items, and monitor local water levels and flooding forecasts.
The chaos of the floods comes as the British prepares for a three non-stop rain superstorm as the Met Office issues flood warnings for the upcoming "Storm Deirdre".
The United Kingdom is ready to travel and flood the chaos while heavy wind and rain are ready to strike.
are driven by powerful low pressure systems that swirl in the Atlantic.
The tropical air introduced by a supercharged jet jet will see temperatures rise dramatically and lead to a "convective" downpour over the next two days.
So far, these are flood warnings in deed:
Rivers in the lower Towy basin downstream of Llandeilo excluding Llandeilo.
North and west Pembrokeshire
Rivers on the north and west coast of Pembrokeshire.
Rivers in the basins of Gwendraeth Fach and Gwendraeth Fawr.
Rivers in southern Pembrokeshire.
Rivers in the western basin of Cleddau
Rivers in the lower Teifi basin downstream of Llanybydder.
Rivers Taf and Cynin
Rivers in the basins of Taf and Cynin.  Pembrokeshire Coast
Between St Dogmaels, Cardigan and Amroth.
Coast of Carmarthenshire
Between Pendine and Hendy, east of Llanelli.
Tidal Area at Crofty
North Gower Coast at Crofty
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