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Rain Watch Hi everyone, have decided to start up a separate topic to look more closely at expected rainfall accumulations in the days ahead. It's a concern that more new floods are possible if not likely through this weekend and into next week, this coming from several large scale weather systems and possible Atlantic storms hitting the UK and ROI over the next 7 days at least, it's likely that some breaks in the rain will occur at times though. I'm not going to hide the fact that severe floods in new areas are possibly on the way I say possibly even if I think likely, which I do. Below I've put on a rain alert map created from precipitation data models of which the one's I have access, please use my map as a general guide of where the heaviest rain could be accumulated over the next 48hrs or so, please do allow for some small adjustments do not take the map as 100 percent set in stone, usually the expected accumulations of rainfall may be more or less in any one area and exact locations can change, I might not be able to update map. (Map can be shared where you like) Map expires MON 0300hrs - January 4 W = on the map this means that I am watching for upgrades of 30mm or more. Light yellow + W =30mm - rainfall may get accumulated up to 30mm but may upgrade to 40mm for a level 1 so is under a watch zone. Yellow = 40mm - 50mm accm rain Orange = 50mm - 80mm accm rain Red = 80mm - 100mm accm rain Dark red = 100+ accm rain. Many areas seeing rain this heavy at times some very heavy and prolonged, expect 10mm-25mm generally. Some of the largest rainfalls likely to occur over higher ground. For the winds associated with these weather systems/storms likely gale or severe gale at times please see other threads and warnings. Please post anything related to rainfall forecasting, model ppn data, alerts and warnings, your own rain maps and forecasts. ZONE51.
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This weekend is looking quite wet in places with some flooding possible with large rainfall totals possible in 12-24hrs. Also the wind may play a part with gales possible and given the time of year with trees in full leaf accompanied with a lot of rain may cause branches or trees to fall causing disruption. The Met Office have an early warning out for the rain: Saturday Sunday Still uncertainty regarding where the heaviest rain will be and how deep the low will also be but its worth keeping up to date with.
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Here is a selection of wild weather photos that I have collected from the web. The thread gallery here contains almost 70 incredible photos. Apart from an amazing gallery of photos the question is are these severe weather events around the world becoming more extreme, not only this but are they becoming more frequent? (Have placed each image onto a same size background to enable easy viewing without size changing) Gallery: === === === === === ------
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heavy rain Heavy Rainfall and Flood Watch February 2014
ZONE 51 posted a topic in Storms & Severe Weather
The general situation now is we have a deep low pressure on the scene, NAE surface pressure: A southwesterly flow that is unstable is bringing frequent lines of showers (call them streamers if you like) these are very heavy downpours some thundery and some could contain hail, also very windy. I want to throw in the lifted index from GFS the yellow showing the unstable airmass moving into the SW: There has recently been thunderstorms in the SW. These unstable conditions spreading more over the BI today, I'm showing the LI charts as this will enhance the downpours this morning increasing the potential for thunderstorms and so more intense rainfall. please see the convective thread for more on the thunder. Currently there are some intense lines of thundery downpours of rain as seen on the latest radar, these are affecting much of England (particularly SW) and parts of S-Wales too. EURO4: Lines of precipitation, especially the SE and it's here where the most prolonged showers could affect today. NAE: The model indicates some potentially disruptive rainfall over parts of the south, with IOW, Hampshire, Sussex and Kent also Surrey and London areas potentially severe weather today, and also the next day needs watching closely too. For Western Scotland, ppn models indicating high ppn amounts here today. UKMO: This is for Wednesday 8th ^^ NAE accumulation 00z +48: (just updated the map to inclu SW for the deeper oranges after radar review) My map is based on latest radar and ppn accm charts for today and tomorrow. (Please note that I have put deeper orange over Southern areas due to radar review and downpours and thunderstorms currently active in places and expected to continue today, more prolonged rainfall at times over the next 48hrs over Southern UK) Also note that high ppn is shown to affect Western Scotland over the next 36-48hrs too) ESS. -
From the album: Weather and Weather Effects.
After 24HRs of non-stop rain, the fields turned to swamps.© IBringTheHammer
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Nebraskan farmland has turned into a dustbowl since the floods of 2011. It's thought the power of the water displaced grass seeds and saturating the land so much that it became unsuitable for any plantation to grow back on what was once fertile land. The same phenomenon happened in Egypt where oceanwater & a vast freshwater lake receeded back into the mediterannean following a great drought, this co-inciding at the times when the Pyramids were being built and Giza was once a port city. http://www.extremeinstability.com/2012desertflood.htm