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Tuesday, 22 August 2017
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National Forecast

22 August 2017 04:34


Humid once again today with quite extensive mist and fog to start. Some sunshine breaking through this morning but in general it will be cloudy with scattered outbreaks of rain. Heavy downpours will develop in places during the afternoon with the risk of thunder and localised spot flooding. The rain will be heaviest and most persistent across the northern half of the country. A clearance will reach the southwest in the evening and it will turn noticeably fresher here. Top temperatures of 18 to 22 degrees in moderate southeast winds, which will veer southwest during the evening.


Heavy rain with thundery bursts will continue for a time across Ulster and north Leinster early in the night but will clear away to the northeast soon after midnight. Cooler, clearer weather with isolated showers will then extend to all regions. Minimum temperatures of 10 to 13 degrees in moderate southwesterly winds.


Wednesday looks set to be a bright, breezy day with sunny spells and a scattering of showers. The showers will be largely confined to Atlantic coastal counties but a few will drift further inland. Top temperatures of 16 to 19 degrees in moderate to fresh southwest winds.


HEADLINE: Some rain or showers at times (mainly affecting northwestern areas) but overall a good deal of dry weather and with temperatures close to the seasonal norm.

WEDNESDAY NIGHT: It will be dry across the bulk of the country on Wednesday night with clear spells and just a few mist or fog patches. However, showers or longer spells of rain will edge into north Connacht and Donegal at times. Minimum temperatures of 9 to 12 degrees in moderate southwest winds which will increase strong at times in the northwest.

THURSDAY: Low pressure is expected to be anchored just off the northwest coast on Thursday and this will feed in showers or longer spells of rain to parts of Connacht and Ulster. However, elsewhere it is expected to be a mainly dry day with a mix of cloud and sunny spells. Maximum temperatures of 15 to 19 degrees in fresh to strong and gusty southwest winds.

FRIDAY: An area of low pressure to the north of Ireland will fill and dissipate during the course of Friday. There will be showery rain across northern areas to start but the rain will fragment and ease during the course of the day. Predominantly dry elsewhere with sunny spells and just a few isolated showers. Highest temperatures of 17 to 20 degrees in light, variable breezes.

SATURDAY: Current indications suggest that Saturday will be a largely dry day with a mix of cloud and bright/sunny spells. A few showers are likely to develop in the afternoon but they will be generally light in nature and well-scattered. Maximum temperatures of 18 to 21 degrees in light, variable winds.

SUNDAY: Still some uncertainty with regards to weather conditions on Sunday. However, the latest guidance indicates it will remain largely dry with some sunny spells and with temperatures reaching the low twenties.
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