TMT Weather Update - 8PM January 28 2013

Strong wind gusts are likely to continue until about 9 p.m. especially over northern counties, and then the winds should gradually reduce to moderate speeds in the 40-70 km/hr range as they back from W to SW by morning

Another storm system is following a similar track but does not appear quite as strong, although it could catch Donegal with its strongest winds tomorrow mid-day. In general, this next event will be milder with a further 20-30 mm of rain possible. Winds for most of the country will peak during the late morning or early afternoon at about SW 50-80 km/hr but that may be closer to 70-120 km/hr in a few parts of the coastal northwest.

Overnight lows of about 6-8 C for the south, 4-6 C north then highs during the day Tuesday of about 10-12 C.

Wednesday will continue blustery and showery with highs near 9 C in a steady southwest wind of about 40-70 km/hr. This will once again rise to somewhat stronger levels overnight into Thursday morning with a heavier burst of rain (another 15-25 mm possible) then it should begin to turn colder in stages on Thursday as winds veer more westerly at 50-80 km/hr. Passing squally showers could become wintry on higher ground through late Thursday into Friday as winds veer further to the northwest.

By Saturday it should begin to clear on strong northwest to north winds although some lines of showers could develop near the west coast, and it will be quite cold especially in the wind (50-80 km/hr) with highs of 5-7 C.

Will revisit the longer range forecast with the usual morning forecast.

Just briefly, the weather in Britain will follow this same pattern except to mention that Scotland has yet to see the full force of today's storm and can expect an interval of 80-130 km/hr SW gales shortly especially on the southwest coast. That should blow through by about 0300h after which the general sequence for the Irish forecast can be applied to Britain's weather with perhaps an average six hour lag as the systems take that long to cross the region.

And even more briefly, in North America the big story is a rapid warming trend set to last two days in central and eastern states which have been in the deep freeze for the past week -- now temperatures are soaring into the range of 13-18 C from Chicago to New England and 20-24 C further south (this won't reach the east coast until tomorrow morning). The resulting mild spell will last about halfway through Wednesday in the Midwest and into the early hours of Thursday in the east, after which it will turn sharply colder on strong northwest winds.

My local weather has been showery and mild for the past two days. About 10 C here at 10:00 a.m. local time.

Peter O'Donnell is a Vancouver-based climatologist who specialises in providing long-range forecasts for Ireland and Britain.