:00:00. > :00:00.towards Saturday morning. Time to hand you over for the national
:00:00. > :00:17.forecast now. The heat is set to build and the
:00:18. > :00:24.humidity will be rising, and for the reason we need to look south. Over
:00:25. > :00:30.the next few days, these southerly winds will draw up the heat and
:00:31. > :00:41.humidity, a recipe for thunderstorms eventually. We are not there yet,
:00:42. > :00:46.however. Some scattered showers in western Scotland. Further south, the
:00:47. > :00:51.rain is petering out but we will keep the cloud. It will be more
:00:52. > :00:57.cloudy at the start tomorrow, across the south, compared to today. But
:00:58. > :01:06.that should clear, and for most of us, tomorrow is a fine summers day.
:01:07. > :01:12.For many of the northern areas, quite a bit warmer than it was to
:01:13. > :01:18.day. It should brighten up around the coast of Wales and the
:01:19. > :01:21.south-west of England. Temperatures across the the Midlands, East Anglia
:01:22. > :01:30.and the south-east of England set to get up towards 29, it could well be
:01:31. > :01:33.the warmest day of the year so far. A fine start at Hoylake as well, and
:01:34. > :01:37.A fine start at Hoylake as well and crucially, the winds will be light
:01:38. > :01:44.for the first day at the Open. However, the wind will become more
:01:45. > :01:49.of a feature, picking up thunderstorms spreading north during
:01:50. > :01:53.the night, and then for Friday, getting up to Northern Ireland and
:01:54. > :02:01.south-west Scotland. Friday is all about the temperatures. A bit cooler
:02:02. > :02:08.around those coasts in the north-east. The heat and humidity
:02:09. > :02:12.and the energy will be coming from France, and that will spark some
:02:13. > :02:17.thunderstorms on Friday evening and thunderstorms on Friday evening, and
:02:18. > :02:22.pushing northwards over the weekend. A lot of uncertainty about the exact
:02:23. > :02:23.position of these downpours. Do not write off your weekend just yet,
:02:24. > :02:28.write off your weekend just yet just be aware that the heat and
:02:29. > :02:29.humidity could cause some violent storms,