Storm Dennis Update
Weather updates courtesy of Ireland’s Weather Channel
⚠️STORM DENNIS – DEEPEST ATLANTIC STORM ON RECORD
⚠️MAX WINDS IN EXCESS OF 200km/h OFF-SHORE
⚠️MONSTROUS SEA SWELLS ALONG ATLANTIC COAST
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Storm Dennis is expected to impact the country through Saturday and Sunday bringing with it the risk of damaging winds along the west coast, as well as heavy rain and monstrous sea swells that are likely to cause some significant damage in coastal communities.
At its peak around 400 km to the northwest of Ireland Dennis will see its central pressure drop to between 913 – 915 hPa, which would tie as being the deepest pressure reading ever recorded in the North Atlantic Ocean not from a Hurricane. Such a pressure reading is truly phenomenal.
Maximum wind speeds from Storm Dennis look to stay off-shore thankfully, but at the storms peak there are indications of wind speeds exceeding 210 km/h around 300 km west of the Irish coastline. Overland the strongest winds from Storm Dennis will reach between 120 – 140 km/h, strongest in Atlantic Coastal fringes.
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The sea swell generated by Storm Dennis is expected to be truly phenomenal and is likely to be larger than that generated by Storm Ciara. Current indications suggest sea swells and wave heights both reaching in excess of 15 metres or some 50 feet between Sunday and Monday. Significant coastal flooding is possible with damage to coastlines also likely.
Heavy rain associated with Storm Dennis will affect many parts of the country over the course of the weekend with rainfall totals in some areas exceeding 40 mm once again for the weekend period, leading to a renewed risk of flooding in areas which experienced significant flooding from Storm Ciara.
Ireland’s Weather Channel will continue to provide you with the very latest updates throughout the course of the week as Dennis approaches.
How are conditions in your area this morning?