Drivers in Somerset are being warned to expect hazardous conditions on the roads tonight and tomorrow morning.
Several of the county's roads have been flooded this afternoon after heavy showers.
Further rain is forecast for tonight and tomorrow, forcing the Met Office to issue a severe weather warning.
"With the ground already saturated in many places, the public should be aware that there is a risk of localised flooding and disruption to travel," the forecaster said.
The A38 between Taunton and Wellington was partially blocked near the Willowbrook Garden Centre. One lane of the road was still passable during rush-hour this evening, but congestion had built up.
Other minor roads around Wellington and Taunton were also affected, including the B3227 between Norton Fitzwarren and Wiveliscombe at the Blackdown View junction.
Flooding also caused traffic delays in both directions on the A36 between Farleigh Hungerford and Bath this afternoon.
Fire crews in Frome answered two calls to flooded properties within 90 minutes of each other tonight.
A cellar at a house in Lullington was under three feet of water, which was pumped out by crews at around 9pm.
A little earlier, firefighters were called out to several properties in Goose Street, Beckington, after flood water had started running down the road.
Crews diverted the water away from the houses and left the incident in the hands of Wessex Water representatives.
With the ground already saturated, tomorrow's forecast of heavy scattered showers has led to the Met Office issuing another yellow warning which is in place from 6am onwards.
Saturday should be drier, but the forecaster has issued an early warning for Sunday.
"Further rain is possible on Sunday and, although there remains uncertainty in amounts, some of it could be heavy at times," said the Met Office.
"With the ground already saturated in many places the public should be aware that there is a risk of localised flooding and disruption to travel."
Click here for the latest Somerset weather forecast.
See below for the latest South West flood alerts and warnings from the Environment Agency...