New weather maps show a huge and potentially damaging low pressure system steaming its way towards the UK - enough for the Met Office to issue several new weather warnings for rainfall on Thursday and Friday. The forecaster has warned several areas across Britain could be hammered by torrential downpours which could lead to flooding and travel disruption. Terrifying weather charts also show the barreling storm packing winds of up to 70mph that could smash into UK shores throughout the week.
The National Hurricane Centre (NHC) has said although Epsilon has now been declared a "post-tropical cyclone", it still remains a "very powerful and dangerous storm" until it is absorbed by another "large extratropical low pressure system over the north-eastern Atlantic".
Weather charts produced by Magic Seaweed showed a black storm swell heading towards Britain and Ireland.
Netweather.tv said the jetstream in the Atlantic "entrains the remnants of Epsilon", edging its way towards Western Europe but then coming dangerously close to the north west of the UK as the week progresses.
The online weather forecaster wrote: "The jetstream is enabling Low2 to rapidly deepen and this then entrains the remnants of Epsilon.
UK weather forecast: The terrifying chart shows a black hurricane surge
UK weather forecast: A huge surge has been building in the Atlantic
"The swell charts are already causing a stir as this significant low pressure moves closer to western Europe but then lurks through the middle of the week to the south of Iceland and NW of the UK.
"It is then shoved out of the way, towards Greenland on Thursday by a new frontal system which will bring heavy rain to western Britain and Ireland with ongoing rain for the rest of the week.
"It all looks very unsettled with plenty of rain and blustery winds."
But more immediately, heavy rain is forecast throughout large parts of the country for the duration of Monday, with the prospect of hail and gale force winds around coastal areas.
UK weather forecast: Britain is set to be battered by torrential rain this week
Netweather said: "We have another low pressure (Low1) over the UK bringing lots of showers. The low leans eastwards today over Scotland, filling slowly.
"A rash of showers will affect western Scotland today and this morning for northern England, particularly the NW.
"Some of these could be heavy and thundery with hail at times with strong NW winds, even gales around the coasts.
"Clusters rotate over Northern Ireland and Wales, SW England pushed on by west to NW winds.
UK weather forecast: Thursday could see heavy storms
UK weather forecast: Weather warnings are in place for later this week
"There will be bright skies and sunshine with a few lingering showers through the day but overall fine enough by this afternoon. It will feel cool in the breeze at 11 to 13C.
"For the rest of England, bands of heavier showers work their way eastwards resulting in spells of dark clouds and rain but then clearance and fewer showers by the evening as pressure rises away to the SW."
Large parts of the UK are also set to be battered by heavy showers on Wednesday, with torrential rain potentially triggering "flooding issues" later in the week.
Netweather added: "Wednesday looks blustery with heavy showers, particularly for western Wales and Cumbria, with bright spells.
"There are concerns about the amount of rainfall later in the week and so flooding issues.
UK weather forecast: Britain's worst storms
"It will remain unsettled, with strong winds at times but with much milder air drawn up from the south."
The latest weather maps come with the Met Office has issuing new warnings as the remnants of Hurricane Epsilon continue to inflict havoc throughout the UK.
The weather warnings come into effect on Thursday and Friday, with the possibility of homes and businesses being flooded, causing damage to some buildings.
There is a threat fast flowing or deep floodwater that could cause danger to life.
The forecaster has warned of some regions seeing more than five inches of rainfall by the end of Friday.
The Met Office warning reads: "Periods of heavy rain are expected to develop across Wales and northwest England during Thursday and Friday.
"Accumulations of 1.2 to 1.6 inches (30mm to 40mm) can be expected widely, whilst areas of higher ground exposed to strong southwesterly winds are likely to see 2 to 2.4 inches (50mm to 80mm).
"The heaviest rainfall, however, is expected to be across the hills and mountains of northwest Wales where four to 5.1 inches (100mm to 130mm) of rainfall is possible by the end of Friday."