Your daily forecasts from Boards.ie weather forum (NO CHAT)

M.T. Cranium wrote: »

FORECAST UPDATE _ Wed 10 Sept 2014
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The dry spell will continue with only slight changes day to day. There will be a trend towards more cloud at least at mid to high levels, and a stronger southeasterly breeze. Highs will continue a very slow and perhaps somewhat unsteady upward trend but with the stronger breezes, some eastern and southern coastal locations may actually begin to feel cooler. So look for highs to edge up into the low 20s away from those coasts, 17-19 C near them. Nights will be generally a bit milder because of increasing cloud but any prolonged clear intervals will be increasingly likely to promote dense fog (because there's a bit more moisture in the air mass) and this will be more prevalent in south central valley locations.

There are few indications of this dry, settled spell breaking down within the relatively reliable time frame of 8-10 days, but the odd shower is possible as weak remnants of fronts are drawn close to Ireland by the upper level winds which are more southerly than the surface east to southeast breezes.

So for specifics, would say, on average:

TODAY, mostly sunny 18-20
TONIGHT clear intervals, dense fog patches, 6-9
THURSDAY partly cloudy 19-21
FRIDAY cloudy with sunny intervals, isolated showers 19-22
WEEKEND cloudy with a few sunny intervals, 17-20
NEXT WEEK similar, highs 18-21

My local weather on Tuesday was partly cloudy with some sunny breaks and a high near 19 C.

Love the new format MT - a few lines painting a general picture of the weather in Ireland over the medium term followed by a much easier to read glance at the coming 5 days' temperatures and weather type.

D

No forecasts for a few days so I'll give it a shot

Well it looks like the fine settled weather is to continue for the next while with temperatures set to rise again in most areas from tomorrow however easterly breezes will pick up a little which will take the edge of the temperatures in the eastern half of the country and most especially near eastern and possibly some southern coasts at times. Mist and fog will probably become less of an issue as the days pass due to slightly higher wind speeds however some fog patches cannot be ruled out especially in sheltered areas and valleys as humidity levels will also be increasing.

At the moment we have high pressure over Scandinavia and low west of Iberia. This is the reason behind the current stable and settled weather. Over the coming weekend it looks like the Scandy high will push east into Russia only to be replaced by another area of high pressure which will move into from the west. At the same time, the low pressure near Iberia will begin to fill. The net effect of this is that winds should fall light again over the weekend and into the early days of next week. However there will also be a slight drop in air pressure over the weekend so there is an increasing threat of a thundery outbreak which will be helped by the higher temperatures and humidity levels. At the moment Friday and Saturday are looking like the best days for potential storms. There will be a lot of available energy in 2 distinct parts of the country - The west and midwest and possibly the east. The western storms would be home grown and the eastern ones would be imports from the UK so a possible night time show for dwellers in the east. Again, this is currently only a risk but just mentioning it as a possibility.

To keep in M.T's format, the short summary is as follows:

TODAY, fog clearing to give sunny spells in most areas, not wall to wall 17-20
TONIGHT clear intervals, dense fog patches in sheltered areas, 10 - 14
WEDNESDAY partly cloudy with sunny spells, breeziest in southern and south-eastern areas 19-22
THURSDAY partly cloudy with sunny intervals, winds becoming quite light by evening. Chance of isolated showers in the west/mid-west 19-23
FRIDAY Light winds mainly from an eastern direction. Mix of sunshine and some cloud. Risk of heavy thunderstorms breaking out in western and mid-western areas during the afternoon and evening which could give spot flooding due to the slow moving nature of the showers. In addition, storms could move into eastern coastal areas during the evening/early night 17 - 22 but much lower in any showers
WEEKEND A similar setup for Saturday chances of showers dropping on Sunday. Light winds both days, 17-21 both days

NEXT WEEK staying settled until midweek, highs 18-21 - Current signs show that a breakdown is very likely from Thursday onwards as the Atlantic low pressure systems finally get their way and get back to their more usual paths over Ireland and GB. Any areas that do not get any precipitation from showers as we head into this weekend in southern and eastern areas will be getting perilously close to drought conditions during the early days of next week, something that is not at all common at this time of year.

I'll keep it much shorter today due to time constraints in work:

Cloud clearing somewhat from the south during the day. Like yesterday, there won't be wall to wall sunshine but it will feel quite warm in any sunshine as humidity is rising to rather high levels. Best chance of good sunny breaks are likely in the middle third of the country. Southern and northern areas may hang on to a bit more cloud and there will scattered outbreaks of rain and drizzle in the southwest of the country. It will be rather breezy in the southern half of the country and to a lesser extent along eastern areas. Top temps will range from about 17 - 21/22°, coolest in the duller and wetter areas and along coasts exposed to the breeze.

Tonight: Staying mild and humid with mist and fog in sheltered areas. Some patch light rain or drizzle dotted around the place too. Winds will ease during the night but will still remain quite breezy in extreme southern areas.

Tomorrow: Lighter winds more or less everywhere combined with high humidities will mean it will feel warm or very warm in any sunshine. There will be cloudy periods as well and there is an increasing chance of some showers breaking out in the afternoon, mainly in the southern half of the country and moreso in the western side of this half. Top temps around 21/22°

Friday: Winds fairly light, high humidity and temperatures in the high teens to low 20's. Sun sunshine but cloud bubbling up in many areas, especially midland, southern and western areas bringing some showers by afternoon/evening. Showers are likely to be very heavy or torrential with thunderstorm activity in many of them. Spot flooding could also be an issue, not helped by the generally very dry ground so there could be a lot of surface run off as the dry soil will be less able to absorb the heavy rain than moister soil could. There is also a chance of UK import thunderstorms arriving into eastern areas in the evening. If so, they could also give very heavy rainfall and thunderstorm activity well into the evening or early night.

Weekend: A good deal fresher and a few degrees cooler with highest temperatures generally in the high teens, possibly touching 20° in favoured locations. Winds quite light on both days with Sunday looking like being the better of the two days as it is likely to be sunnier.

A slow breakdown is likely during next week with normal Atlantic service likely to be fully in force by Wednesday night/Thursday after a few days of the Atlantic trying its best to exert its influence over us. The eastern half of the country will get the best of the weather for Monday to Wednesday with some fairly pleasant weather on Monday and Wednesday. Most areas will see some rain on Tuesday. Winds will be quite light on all 3 days and although temperatures will probably only get to the high teens at most, it will feel pleasantly warm in the late September sun.

The longer term outlook is not great as we enter into October. There are tentative signs that things may settle down at the start of October but it's too far away to be in any way sure and things are likely to change again. In any case, we will surely be talking about the risk of snow once the Atlantic is back in action.

I might have a crack at it today

Monday 22nd September

Ireland

Monday: Fog in the South continuing to clear, sunny spells this afternoon with fair weather across most of Leinster and Connacht as well as North Munster. Cloud building across the north west by evening, with some light rain or drizzle by nightfall. Highs 16-19, warmest inland south. Lows of 6-9 degrees where cloud breaks. Winds light to moderate variable.

Tuesday: Generally cloudy with drizzle or light rain, clearing southeastwards in the afternoon and sunny spells developing most in the northern half of the Country. Highs 15-17, winds light from the SW

Wednesday: Mostly overcast but dry and mild in light winds.

Outlook: Thursday similar to Wednesday and remaining generally very mild and settled out to next week with variable cloud each day and occasional light rain or drizzle in the west and north.

UK Outlook: Mild weather for Britain this week too with occasional light rain, but cool nights and a greater risk of mist and fog. Breezier on North Sea coasts.

North America: Autumn cooling in the North East and Mid West of the US, very warm and humid in the Southern and Gulf Coast states. West of the Rockies temperatures generally above normal and very warm in the South West, with everywhere northwards as far as the Canadian Prairies seeing average temps 6-8 degrees above typical values.