Flash Flooding in the North West "Unprecedented" Rainfall

[C. Flower]

With very little warning and in the space of 2 hours 30 millimetres of rain fell in some parts of the North West of Ireland with sever flash flooding resulting.

Knock on from an Atlantic hurricane. The Met is saying that it is a one in a hundred years (1%) probability occurrence.

Commiserations to those who are wet.


http://www.irishmirror.ie/news/irish...es-up-11036632

[dedogs]

poor hoors its rough allright....

[Trow]

The lightening in mid Ulster and across the Antrim plateau Eastwards was worth the sit up. I put the tv off and lights out, opened the blinds and took it all in.

[Shaadi]

This kind of event is what kick started the really bad flooding we had a few years ago. It'll be interesting to keep an eye on the water levels in the upper Shannon region to see if this deluge starts off a flood season down along the Shannon.

It's probably too far north to have much of an effect on the Shannon but these big downpours seem to be able to find their way into the Shannon.

[C. Flower]

This kind of event is what kick started the really bad flooding we had a few years ago. It'll be interesting to keep an eye on the water levels in the upper Shannon region to see if this deluge starts off a flood season down along the Shannon.

It's probably too far north to have much of an effect on the Shannon but these big downpours seem to be able to find their way into the Shannon.

It's the intensity of the rain that has changed in the last few years - also, rainfall / flooding patterns are as a consequence less predictable. Places flooding that have never flooded before.

[Trow]

There was a noticeable shift slightly North in the jet stream just a couple of months ago. I think this ''careless whisk' might be a factor in bringing our extreme weather most recently.

[Count Bobulescu]

As we approach peak of Hurricane season a 500 mile stretch of the Gulf Coast from Corpus Christi to N'Awlins is hunkering down in front of slow moving Hurricane Harvey (winds sustained 80mph, gusts 125+mph) expected to make landfall early Saturday. State of Emergency already in 30 counties.


There are currently no upper atmosphere wind systems that might help to move it on, so it is expected to hang around after landfall. In similar circumstances in 1979 Hurricane Claudette set a US record and dropped 42 inches in 24 hours near Houston, which is currently bracing for about 20 inches, but could get more, 36 inches has been mentioned in computer models.

[Shaadi]

http://waterlevel.ie/0000026324/0001/

That rainfall ( or some associated rainfall) made its way into the Shannon ( Carrick On Shannon) fairly quickly alright and looks like it may well start a drift up to winter flooding levels.