16/07/2014 BBC Weather

towards Saturday morning. Time to hand you over for the national

forecast now. The heat is set to build and the

humidity will be rising, and for the reason we need to look south. Over

the next few days, these southerly winds will draw up the heat and

humidity, a recipe for thunderstorms eventually. We are not there yet,

however. Some scattered showers in western Scotland. Further south, the

rain is petering out but we will keep the cloud. It will be more

cloudy at the start tomorrow, across the south, compared to today. But

that should clear, and for most of us, tomorrow is a fine summers day.

For many of the northern areas, quite a bit warmer than it was to

day. It should brighten up around the coast of Wales and the

south-west of England. Temperatures across the the Midlands, East Anglia

and the south-east of England set to get up towards 29, it could well be

the warmest day of the year so far. A fine start at Hoylake as well, and

A fine start at Hoylake as well and crucially, the winds will be light

for the first day at the Open. However, the wind will become more

of a feature, picking up thunderstorms spreading north during

the night, and then for Friday, getting up to Northern Ireland and

south-west Scotland. Friday is all about the temperatures. A bit cooler

around those coasts in the north-east. The heat and humidity

and the energy will be coming from France, and that will spark some

thunderstorms on Friday evening and thunderstorms on Friday evening, and

pushing northwards over the weekend. A lot of uncertainty about the exact

position of these downpours. Do not write off your weekend just yet,

write off your weekend just yet just be aware that the heat and

humidity could cause some violent storms,