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# unsafe_ unsafe__2 unsafe__3 unsafe__4 Forecast for Lough Derg for daylight hours today unsafe__5 unsafe__6 unsafe__7 unsafe__8 Forecast for Lough Ree for daylight hours today unsafe__9 unsafe__10 unsafe__11 unsafe__12 forecast_for_lough_corrib_and_lough_mask_for_daylight_hours_ unsafe__13 unsafe__14 unsafe__15 unsafe__16 forecast_for_lough_key_and_lough_allen_for_daylight_hours_to unsafe__17 unsafe__18 unsafe__19 unsafe__20
1 Date of Issue of Inland Lakes Forecast Time of Issue Time of Meteorological Situation Lake Meteorological Situation Lough Derg Wind Lough Derg Weather Lough Derg Visibility Lough Derg Winds Overnight Lough Derg Outlook Lough Ree Wind Lough Ree Weather Lough Ree Visibility Lough Ree Winds Overnight Lough Ree Outlook Lough Corrib and Lough Mask Wind Lough Corrib and Lough Mask Weather Lough Corrib and Lough Mask Visibility Lough Corrib and Lough Mask Winds Overnight Lough Corrib and Lough Mask Outlook Lough Key and Lough Allen Wind Lough Key and Lough Allen Weather Lough Key and Lough Allen Visibility Lough Key and Lough Allen Winds Overnight Lough Key and Lough Allen Outlook
2 Tuesday 1 May 2012 0630 0300 A strong northeasterly airflow covers the country. Frontal troughs in the south of the country will track northwards today. Force 4 or 5, occasionally force 6 and gusty northeast winds. Rain this afternoon and evening, heavy at times. Moderate to poor in rain. Decreasing northeast force 2 or 3. Mostly fair weather, east to northeast winds force 2 or 3. Force 4 or 5, occasionally force 6 and gusty northeast winds. Rain this afternoon and evening, heavy at times. Moderate to poor in rain. Decreasing northeast force 2 or 3. Mostly fair weather, east to northeast winds force 2 or 3. Force 4 or 5, occasionally force 6 and gusty northeast winds. Rain this afternoon and evening, heavy at times. Moderate to poor in rain. Decreasing northeast force 2 or 3. Mostly fair weather, east to northeast winds force 2 or 3. Force 4 or 5, occasionally force 6 and gusty northeast winds. Rain this afternoon and evening, heavy at times. Moderate to poor in rain. Decreasing northeast force 2 or 3. Mostly fair weather, east to northeast winds force 2 or 3.
3 Tuesday 1 May 2012 0900 0300 A strong northeasterly airflow covers the country. Frontal troughs in the south of the country will track northwards today. Force 4 or 5, occasionally force 6 and gusty northeast winds. Rain this afternoon and evening, heavy at times. Moderate to poor in rain. Decreasing northeast force 2 or 3. Mostly fair weather, east to northeast winds force 2 or 3. Force 4 or 5, occasionally force 6 and gusty northeast winds. Rain this afternoon and evening, heavy at times. Moderate to poor in rain. Decreasing northeast force 2 or 3. Mostly fair weather, east to northeast winds force 2 or 3. Force 4 or 5, occasionally force 6 and gusty northeast winds. Rain this afternoon and evening, heavy at times. Moderate to poor in rain. Decreasing northeast force 2 or 3. Mostly fair weather, east to northeast winds force 2 or 3. Force 4 or 5, occasionally force 6 and gusty northeast winds. Rain this afternoon and evening, heavy at times. Moderate to poor in rain. Decreasing northeast force 2 or 3. Mostly fair weather, east to northeast winds force 2 or 3.
4 Tuesday 1 May 2012 1500 0900 A strong northeasterly airflow covers the country. Frontal troughs in the south of the country will track northwards today. Force 4 or 5, occasionally force 6 and gusty northeast winds. Rain this afternoon and evening, heavy at times. Moderate to poor in rain. Decreasing northeast force 2 or 3. Mostly fair weather, east to northeast winds force 2 or 3. Force 4 or 5, occasionally force 6 and gusty northeast winds. Rain this afternoon and evening, heavy at times. Moderate to poor in rain. Decreasing northeast force 2 or 3. Mostly fair weather, east to northeast winds force 2 or 3. Force 4 or 5, occasionally force 6 and gusty northeast winds. Rain this afternoon and evening, heavy at times. Moderate to poor in rain. Decreasing northeast force 2 or 3. Mostly fair weather, east to northeast winds force 2 or 3. Force 4 or 5, occasionally force 6 and gusty northeast winds. Rain this afternoon and evening, heavy at times. Moderate to poor in rain. Decreasing northeast force 2 or 3. Mostly fair weather, east to northeast winds force 2 or 3.
5 Wednesday 2 May 2012 0630 0900 A light east to northeast flow covers the area. Easterly force 3 Mainly cloudy, but dry. Mainly good Northeast force 2 or 3 Northeast force 3 Easterly force 3 Mainly cloudy, but dry. Mainly good Northeast force 2 or 3 Northeast force 3 Easterly force 3 Mainly cloudy, but dry. Mainly good Northeast force 2 or 3 Northeast force 3 Easterly force 3 Mainly cloudy, but dry. Mainly good Northeast force 2 or 3 Northeast force 3
6 Wednesday 2 May 2012 0900 0900 A light east to northeast flow covers the area. Easterly force 3 Mainly cloudy, but dry. Mainly good Northeast force 2 or 3 Northeast force 3 Easterly force 3 Mainly cloudy, but dry. Mainly good Northeast force 2 or 3 Northeast force 3 Easterly force 3 Mainly cloudy, but dry. Mainly good Northeast force 2 or 3 Northeast force 3 Easterly force 3 Mainly cloudy, but dry. Mainly good Northeast force 2 or 3 Northeast force 3
7 Wednesday 2 May 2012 1330 0900 A light east to northeast flow covers the area. Easterly force 3 Mainly cloudy, but dry. Mainly good Northeast force 2 or 3 Northeast force 3 Easterly force 3 Mainly cloudy, but dry. Mainly good Northeast force 2 or 3 Northeast force 3 Easterly force 3 Mainly cloudy, but dry. Mainly good Northeast force 2 or 3 Northeast force 3 Easterly force 3 Mainly cloudy, but dry. Mainly good Northeast force 2 or 3 Northeast force 3
8 Thursday 3 May 2012 1330 0900 A moderate northeast to east flow covers Ireland with a slow moving frontal trough over southern areas, which will edge away southwards later today. A cold front will approach from the north tonight and track southwards over Ireland tomorrow. Northeast force 2 or 3, occasionally force 4. Mostly fair. Mostly good. Moderate northeast. Moderate to fresh north to northeast with rain and drizzle dying away later Northeast force 2 or 3, occasionally force 4. Mostly fair. Mostly good. Moderate northeast. Moderate north to northeast with a little patchy rain or drizzle for a time in late morning early afternoon, dying away later. Northeast force 2 or 3, occasionally force 4. Mostly fair. Mostly good. Moderate northeast. Moderate to fresh north to northeast with rain and drizzle dying away later Northeast force 2 or 3, occasionally force 4. Mostly fair. Mostly good. Moderate northeast. Moderate to fresh north to northeast with rain and drizzle dying away later
9 Friday 4 May 2012 0630 0300 A mainly northerly airflow over Ireland will veer northeasterly today, continuing to strengthen, as a cold moves down from the north and northwest. Light northerly or variable at first, force 3 or less, increasing northeasterly, force 3 or 4 and gusty today. Misty, with outbreaks of rain and drizzle developing today, clearing later to isolated showers. Mostly good, but moderate at times in mist and precipitation. Light northeasterly. Light to moderate northeasterly winds, with a few scattered showers possible. Otherwise mainly fair weather. Light northerly or variable at first, force 3 or less, increasing northeasterly, force 3 or 4 and gusty today. Misty, with outbreaks of rain and drizzle developing today, clearing later to isolated showers. Mostly good, but moderate at times in mist and precipitation. Light northeasterly. Light to moderate northeasterly winds, with a few scattered showers possible. Otherwise mainly fair weather. Light to moderate northerly, force 3 or 4, increasing northeasterly, force 4 or 5 and gusty today. Misty, with outbreaks of rain and drizzle today, clearing to isolated showers. Mostly good, but moderate at times in mist and precipitation. Light to moderate northeasterly. Light to moderate northeasterly winds, with scattered showers and bright spells. Light northerly or variable at first, force 3 or less, increasing northeasterly, force 3 or 4 and gusty today. Misty, with outbreaks of rain and drizzle developing today, clearing later to isolated showers. Mostly good, but moderate at times in mist and precipitation. Light northeasterly. Light to moderate northeasterly winds, with a few scattered showers possible. Otherwise mainly fair weather.
10 Friday 4 May 2012 1330 0900 A narrow cold front, stretching from the north Irish Sea to Galway Bay, moves steadily south and weakens; the northeasterly airstream covering Ireland will turn colder as this happens and will strengthen for a time in the northwest. North 3 or 4, possibly 5 occasionally. Cloudy to fair. Good. Light, northerly. Light, northeasterly winds; showers developing by afternoon but dying out in the evening. North 3 or 4, possibly 5 occasionally. Cloudy to fair. Good. Light, northerly. Light, northeasterly winds; showers developing by afternoon but dying out in the evening. North 3 or 4, possibly 5 occasionally. Cloudy to fair. Good. Light, northerly. Light, northeasterly winds; showers developing by afternoon but dying out in the evening. North 3 or 4, possibly 5 occasionally. Cloudy to fair. Good. Light, northerly. Light, northeasterly winds; showers developing by afternoon but dying out in the evening.
11 Sunday 6 May 2012 0630 0300 A slackening and stabilising easterly airflow extends across Ireland. Low pressure lies to the southwest. East force 3. Mainly fair weather today. Mostly good. East force 4. Moderate easterly winds, veering south with rain or showers. East force 3. Mainly fair weather today. Mostly good. East force 4. Moderate easterly winds, veering south with rain or showers. East force 3. Mainly fair weather today. Mostly good. East force 4. Moderate easterly winds, veering south with rain or showers. East force 3. Mainly fair weather today. Mostly good. East force 4. Moderate easterly winds, veering south with rain or showers.
12 Sunday 6 May 2012 1330 0900 A frontal trough associated with a shallow depression of 100hPa near Valentia, continues to move northwards over Ireland. South to southwest force 3 or 4. Heavy showers Generally good, poor in showers. Northerly force 4 to 5. North force 3 or 4, showers. South to southwest force 3 or 4. Heavy showers Generally good, poor in showers. Northerly force 4 to 5. North force 3 or 4, showers. South to southwest force 3 or 4. Heavy showers Generally good, poor in showers. Northerly force 4 to 5. North force 3 or 4, showers. South to southwest force 3 or 4. Heavy showers Generally good, poor in showers. Northerly force 4 to 5. North force 3 or 4, showers.
13 Tuesday 8 May 2012 1330 0900 A fresh northwest airflow slackens and stabilizes over Ireland. An occluding frontal system positioned 600 miles southwest of Valentia tracks quickly northeastwards and will affect the country tomorrow. North force 3 to 4 Isolated showers dying out. Mainly fair later Good Varaible force 2 or less Increasing east force 5 to 6 North force 3 to 4 Isolated showers dying out. Mainly fair later Good Varaible force 2 or less Increasing east force 4 to 5 North force 3 to 5 Isolated showers dying out. Mainly fair later Good Varaible force 2 or less Increasing east force 4 to 5 North force 3 to 5 Isolated showers dying out. Mainly fair later Good Varaible force 2 or less Increasing east force 4 to 5
14 Wednesday 9 May 2012 1330 0900 A freshening easterly airflow develops over Ireland. A deepening depression of 996 hPa centred 300 miles southwest of Valentia tracks quickly northeastwards and its associated active frontal systems will cross the country tonight. East increasing force 4 to 5 imminent Patchy rain Good East force 4 to 5 Northeast force 3 to 5 East increasing force 4 to 5 imminent Patchy rain Good East force 4 to 5 Northeast force 4 to 5 East increasing force 4 to 5 imminent Mainly fair Good East force 4 to 5 Northeast force 4 to 5 East increasing force 4 to 5 imminent Mainly fair Good East force 4 to 5 Northeast force 4 to 6
15 Thursday 10 May 2012 0630 0300 A depression of 996hPa lies south of Roches and is tracking towards the Irish Sea. The associated frontal troughs are over Ireland with a backing easterly airflow. Northeast force 2 or 3, later force 3 or 4. Rain, clearing to showers later. Improving to good. Northerly force 3 or 4. North to northwest force 4 to 5. Northeast force 2 or 3, later force 3 or 4. Rain, clearing to showers later. Improving to good. Northerly force 3 or 4. North to northwest force 4 to 5. Northeast force 2 or 3, later force 3 or 4. Rain, clearing to showers later. Improving to good. Northerly force 3 or 4. North to northwest force 4 to 5. Northeast force 2 or 3, later force 3 or 4. Rain, clearing to showers later. Improving to good. Northerly force 3 or 4. North to northwest force 4 to 5.
16 Thursday 10 May 2012 1330 0900 A depression with a core stretching from Roche's Point to the north Irish Sea will gradually track northeastwards today. The associated frontal troughs lie across Ireland in a cyclonic airflow. westerly force 2 or 3, becoming northwest force 3 or 4 this afternoon Rain or drizzle Moderate to poor Northwest force 3 Moderate to fresh northwest winds. Weather mainly fair. northwest force 3 or 4 Rain or drizzle Moderate to poor Northwest force 3 Moderate to fresh northwest winds. Weather mainly fair. northwest force 3 or 4 Rain or drizzle Moderate to poor Northwest force 3 Moderate to fresh northwest winds. Weather mainly fair. northwest force 3 or 4 Rain or drizzle Moderate to poor Northwest force 3 Moderate to fresh northwest winds. Weather mainly fair.
17 Saturday 12 May 2012 0630 0300 : An anticyclone of 1042 hPa is centred to the southwest of Valentia. A series of frontal troughs will approach the northwest coast tonight and a strong southwest airflow will develop on Sunday. Mainly westerly force 2 to 4. Sunny spells and a few light showers. Generally good, moderate in the showers. Southwest force 3 to 5. Southwest force 4 or 5. Rain in the afternoon and evening. Mainly westerly force 2 to 4. Sunny spells and a few light showers. Generally good, moderate in the showers. Southwest force 3 to 5. Southwest force 4 or 5. Rain in the afternoon and evening. Mainly westerly force 2 to 4. Sunny spells and a few light showers. Generally good, moderate in the showers. Southwest force 3 to 5. Southwest force 4 or 5. Rain in the afternoon and evening. Mainly westerly force 2 to 4. Sunny spells and a few light showers. Generally good, moderate in the showers. Southwest force 3 to 5. Southwest force 4 or 5. Rain in the afternoon and evening.
18 Saturday 12 May 2012 1330 0900 An anticyclone of 1043 hPa is centred to the southwest of Valentia. A series of frontal troughs will approach the northwest coast tonight and a strong southwest airflow will develop on Sunday. West force 3 to 4 Isolated showers. Good. Southwest force 4 to 5. Southwest force 5 to 6, rain later. West force 3 to 4 Isolated showers. Good. Southwest force 4 to 5. Southwest force 5 to 6, rain later. West force 3 to 4 Isolated showers. Good. Southwest force 4 to 5. Southwest force 5 to 6, rain later. West force 3 to 4 Isolated showers. Good. Southwest force 4 to 5. Southwest force 5 to 6, rain later.
19 Sunday 13 May 2012 1330 0900 Strong to gale force southwest flow is present over Ireland. Frontal troughs will cross the country southeastwards this afternoon and evening. southwest force 5 to 6 Main fair at first, rain developing this afternoon mainly good, becoming moderate later this afternoon Veering westerly force 4 to 5 Fresh west to northwest winds, occasional showers, some heavy and possibly thundery in the afternoon southwest force 5 to 6 Main fair at first, rain developing this afternoon mainly good, becoming moderate later this afternoon Veering westerly force 4 to 5 Fresh west to northwest winds, occasional showers, some heavy and possibly thundery in the afternoon southwest force 5 to 6 Main fair at first, rain developing this afternoon mainly good, becoming moderate later this afternoon Veering westerly force 4 to 5 Fresh west to northwest winds, occasional showers, some heavy and possibly thundery in the afternoon southwest force 5 to 6 Main fair at first, rain developing this afternoon mainly good, becoming moderate later this afternoon Veering westerly force 4 to 5 Fresh west to northwest winds, occasional showers, some heavy and possibly thundery in the afternoon
20 16/05/2012 0630 0300 A mostly moderate northwest airflow covers Ireland as high pressure continues to build from the west. A weak warm front will approach the north and west coast later today, pushing in across the northern half of the country tonight. Westerly force 3 or less. Main fair at first, becoming cloudy. Risk of some light rain early tonight. Mostly good, decreasing moderate or poor later. Light variable, mainly southerly. Light southeast winds. Generally cloudy, with some light rain or drizzle. Mist and fog too. Westerly force 3 or less. Main fair at first, becoming cloudy. Mostly good, decreasing moderate or poor later Light variable, mainly southerly. Light southeast winds. Generally cloudy, with some light rain or drizzle. Mist and fog too. Westerly force 3 or less Main fair at first, becoming cloudy, with rain later this evening. Risk of some mist and fog then too. Mostly good, decreasing moderate or poor later Light variable, mainly southerly. Light southeast winds. Generally cloudy, with some light rain or drizzle. Mist and fog too. Westerly force 3 or less Main fair at first, becoming cloud, with rain later this evening. Risk of some mist and fog then too. Mostly good, decreasing moderate or poor later Light variable, mainly southerly. Light southeast winds. Generally cloudy, with outbreaks of rain or drizzle, heavy at times. Mist and fog too.
21 Wednesday 16 May 2012 1330 0900 A light southwest air flow is present. A weak warm front approaches the west and north coast. West to southwest force 2 or 3 A few outbreaks of rain, becoming persistent later this evening. Mainly good Variable force 2 or 3 Light to moderate easterly winds. Outbreaks of light rain or drizzle West to southwest force 2 or 3 A few outbreaks of rain, becoming persistent later this evening. Mainly good Variable force 2 or 3 Light to moderate easterly winds. Outbreaks of light rain or drizzle West to southwest force 2 or 3 A few outbreaks of rain, becoming persistent later this evening. Mainly good Variable force 2 or 3 Light to moderate easterly winds. Outbreaks of light rain or drizzle West to southwest force 2 or 3 A few outbreaks of rain, becoming persistent later this evening. Mainly good Variable force 2 or 3 Light to moderate easterly winds. Outbreaks of light rain or drizzle
22 Thursday 17 May 2012 1330 0900 A ridge of high pressure over Ireland is declining and an easterly airflow will soon develop; weak frontal troughs remain slow-moving over the country to the north. Variable mainly east force 2 or 3 Outbreaks of drizzle or light rain. Good dry spells too Moderate to good Increasing northeast force 3 to 4 Northeast force 3 to 5; Outbreaks of very light rain. Good dry spells. Variable mainly east force 2 or 3 Outbreaks of drizzle or light rain. Good dry spells too Moderate to good Increasing northeast force 3 to 4 Northeast force 3 to 5; Outbreaks of light rain. Good dry spells. Variable mainly east force 2 or 3 Outbreaks of drizzle or light rain. Good dry spells too Moderate to good Increasing northeast force 3 to 4 Northeast force 3 to 5; Outbreaks of light rain Variable mainly east force 2 or 3 Outbreaks of drizzle or light rain. Good dry spells too Moderate to good Increasing northeast force 3 to 4 Northeast force 3 to 5; Outbreaks of light rain
23 Friday 18 May 2012 0630 0300 A moderate northeast flow is present over Ireland. Weak fronts will give some rain at times. Northeast force 3 to 4 Cloudy with patches of rain and drizzle Mainly good, occasionally moderate Northeast force 2 or 3 Moderate northeast winds will ease during the day. Outbreaks of rain, becoming mainly fair later. Northeast force 3 to 4 Cloudy with patches of rain and drizzle Mainly good, occasionally moderate Northeast force 2 or 3 Moderate northeast winds will ease during the day. Outbreaks of rain, becoming mainly fair later. Northeast force 3 to 4 Cloudy with patches of rain and drizzle Mainly good, occasionally moderate Northeast force 2 or 3 Moderate northeast winds will ease during the day. Outbreaks of rain, becoming mainly fair later. Northeast force 3 to 4 Cloudy with patches of rain and drizzle Mainly good, occasionally moderate Northeast force 2 or 3 Moderate northeast winds will ease during the day. Outbreaks of rain, becoming mainly fair later.
24 Friday 18 May 2012 1330 0900 A depression of 1000 hPa centred off the northwest coast of France maintains a moderate to fresh northeast airflow over the country. An occlusion will track northwestwards across the country today. Northeast to east force 3 or 4 Dry spells, with scattered outbreaks of rain. Generally good, occasionally moderate. Northeast force 2 to 4. Light rain in the morning, with northeast winds force 2 or 3. Northeast to east force 3 or 4 Dry spells, with scattered outbreaks of rain. Generally good, occasionally moderate. Northeast force 2 to 4. Light rain in the morning, with northeast winds force 2 or 3. Northeast to east force 3 or 4 Dry spells, with scattered outbreaks of rain. Generally good, occasionally moderate. Northeast force 2 to 4. Light rain in the morning, with northeast winds force 2 or 3. Northeast to east force 3 or 4 Dry spells, with scattered outbreaks of rain. Generally good, occasionally moderate. Northeast force 2 to 4. Light rain in the morning, with northeast winds force 2 or 3.
25 Saturday 19 May 2012 0630 0300 A cold, fresh northeasterly airflow over Ireland with embedded fronts will weaken during the day. Weak ridges of high pressure will build from the north and the southwest on Sunday. Northeast force 4gusting to force 5 decreasing to force 3. Patchy drizzle/mist becoming dry. Some sunny spells developing. Locally moderate becoming good generally. Light/calm. Fog patches. Light breezes and dry with sunny spells and a little milder. Northeast force 4 decreasing to force 3. Patchy drizzle/mist becoming dry. Some sunny spells developing. Locally moderate becoming good generally. Light/calm. Fog patches. Light breezes and dry with sunny spells and a little milder. Northeast force 4 decreasing to force 3. Patchy drizzle/mist becoming dry. Some sunny spells developing. Locally moderate becoming good generally. Light/calm. Fog patches. Light breezes and dry with sunny spells and a little milder. Northeast force 4 decreasing to force 2 or 3. Dry. Some sunny spells developing. Good. Light/calm. Fog patches. Light breezes and dry with sunny spells and a little milder.