Advertisement
If you have a new account but are having problems posting or verifying your account, please email us on hello@boards.ie for help. Thanks :)
Hello all! Please ensure that you are posting a new thread or question in the appropriate forum. The Feedback forum is overwhelmed with questions that are having to be moved elsewhere. If you need help to verify your account contact hello@boards.ie
Hi all,
Vanilla are planning an update to the site on April 24th (next Wednesday). It is a major PHP8 update which is expected to boost performance across the site. The site will be down from 7pm and it is expected to take about an hour to complete. We appreciate your patience during the update.
Thanks all.
Vanilla are planning an update to the site on April 24th (next Wednesday). It is a major PHP8 update which is expected to boost performance across the site. The site will be down from 7pm and it is expected to take about an hour to complete. We appreciate your patience during the update.
Thanks all.
Hurricanes/Typhoons/Cyclones of 2017.
-
27-03-2017 5:34pm#1
Comments
-
-
Not sure how accurate that JTWC advisory is now, as the Australian Bureau of Meteorology are indicating a maximum 10 minute wind speed of 95 kts with gusts to 130. Pretty strong. Daylight now in eastern Australia. The eye has yet to come onshore.
http://www.bom.gov.au/cgi-bin/wrap_fwo.pl?IDQ20018.txt
Local radar image. Distinct eye feature can be seen.
http://www.bom.gov.au/products/IDR242.loop.shtml#skip
0 -
-
-
-
Advertisement
-
http://www.aljazeera.com/news/2017/04/atlantic-storm-hint-early-hurricane-season-170420093408155.html
It may have formed in open water, well away from any human habitation, but Sub-Tropical Depression One has already made a name for itself.
It shows on satellite imagery as a swirling mass of thunderstorms, located about 1,170km to the westsouthwest of The Azores. It has sustained winds of 55 kilometres per hour (km/h) and it is heading towards the north at 22km/h.
Such low pressure systems are usually confined to the hurricane season, which runs from June 1 to November 30. This depression seems to have beaten the odds, becoming only the fourth such depression recorded in the Atlantic, according to NOAA's Historical Hurricane Track website.
The formation of these tropical or sub-tropical lows usually requires sea surface temperatures (SSTs) of at least 26.5C. Currently, SSTs in the region are only 20C, and the disruptive effects of wind shear (the change of wind speed and direction with height) are quite high.
This depression seems to have sustained itself because of the very cold air extending through the atmosphere, which has supplied the atmospheric instability for thunderstorm formation, required for One's classification.
Only one of the previous April depressions - Tropical Storm Ana in 2003 - went on to become a named storm.
It is possible for systems to develop into full-blown storms outside the hurricane season. This happened in 2016, with Hurricane Alex in January and Tropical Storm Bonnie in May.
There are many state and private organisations that issue predictions of the coming hurricane season. The general consensus seems to be that activity will be slightly below average, with a total of 11 to 12 named storms, four to six hurricanes, and between zero and three major hurricanes.
It is unlikely that Sub-Tropical Depression One is going to cause any revision of the forecasts. If SSTs had been well above average, then that might have been a different matter. But seasonal hurricane forecasting is still in its relative infancy, so forecasters will be closely monitoring the situation in the Atlantic in the weeks ahead.
Source: Al Jazeera and news agencies0 -
-
-
-
-
Advertisement
-
Nothing happening in the Atlantic, but in the Pacific, Typhoon Noru has rapidly intensified to Cat. 3 and is slowly heading in the general direction of Kyūshū, Japan's southernmost island.
How the storm has intensified looks pretty cool
24 hours ago
Now
And look at the clouds inside the eyewall - it almost looks like theres a face smiling out at you
0 -
-
-
Well, Tropical Depression 8 became Tropical Storm Gert and is expected to become a Hurricane shortly and then complete extratropical transition within about 72 hrs then gradually weaken over the N Atlantic before it merges with a larger extratropical cyclone in 4 or 5 days .
https://twitter.com/NOAASatellites/status/897193673183682561
http://www.nhc.noaa.gov/text/refresh/MIATCDAT3+shtml/142047.shtml
Thereafter it looks like a large area of LP that steers in a NE'ly direction between Iceland and Scotland.
Will be interesting to see it's effect on our weather next weekend around Sat, Sun ,Mon. Will it hold that track , increase in intensity or decrease . Could there be a lot of rain from it ( likely IMO ). Its a huge area of LP but the winds don't look too significant at this stage but I would imagine that there would be a huge swell from it.
0 -
-
-
-
-
-
-
Advertisement
-
The track has changed more towards Ireland the last few runs. Wind would not seem to be a problem at this stage but rainfall could be high all right, very hard to know at the moment how much. That cold front part of the system could become a trailing front drawn up over Ireland Sun into Mon perhaps.
0 -
Gert is now Cat 2 Hurricane , first Cat 2 Hurricane of the season, got a lot stronger then originally anticipated I think, will be interesting to see how it interacts with the system coming out of Canada.
0 -
Just to see ex Gert or the remnants of Gert through , noticing that the models are differing quite a bit over Sun and Mon. Interesting to see the UKMO seem to show the system reorganize as it approaches our shores.The Jet might just put a bit of energy into it as it approaches ? Would think there could be a lot of rain and maybe windy if these charts materialize. This wont be nailed down for a couple of days yet.
0 -
Tropical Storm Harvey, having reformed in the last couple of days, is forecast to become a hurricane and potentially not move far from the Texas coastline for a number of days.
Rainfall maximum forecast of 10 to 15 inches up to localised maximum of 25 inches.
NHC advisory 15A
0 -
-
-
-
That stalling in the forecast looks very ominous alright, like getting 50%+ extra on rain than might be expected with floodwaters eventually coming up against storm surges and there being no place for the water to go but back and out of normal channels. Up to 35 inches of rain in some spots up to Wednesday forecast, that's enormous. It's bad enough when people are stuck in place for a day, this could lead to a number of days of inaccessibility in some areas first with wind, then with water. Minimum Central Pressure now 976mb. Max sustained wins now 140km/h 85mph, Category 1. Houston looks set to get a worrying amount of rain. Corpus Christi could be close to the centre as it makes landfall. Let's hope that the fact it is August doesn't affect preperations, particularly informing tourists of what to do where they are, which social media should help with.
Water vapour.
0 -
-
Advertisement
-
My wife sent me this Chinese footage of the storms effects, pretty incredible stuff.
Have a weather station?, why not join the Ireland Weather Network - http://irelandweather.eu/
0
![[Deleted User]](/applications/dashboard/design/images/defaulticon.png)
https://www.youtube.com/watch?v=T4C0FEI1XO4Advertisement