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Showing posts with label storm. Show all posts
Showing posts with label storm. Show all posts

Sunday, February 12, 2017

Weather gradually improving

Rough seas at La Puntilla, Valle Gran Rey, La Gomera, today.

La Gomera escaped the worst of the rain this morning as this passed just to the north of the Canary Islands. However, some very strong winds were recorded here and the weather station in the mountains at Alto Igualero recorded sustained wind speeds of well over 90 km/h with gusts of up to 144 km/h between 5am and 9am. The strong winds lead to some power outages, but no major damage was reported. However, torn branches and debris are still to be expected on roads, and as always during and for quite some time after wind and rain, rocks and soil may be dislodged and fall. Caution is advised !

The eagerly awaited abundant rainfalls failed to materialise and the accumulations during the short periods of pecipitation were pretty poor. 
Seas were, and still are, pretty rough but apparently did not disrupt ferry services. The warning for high waves will be lifted at 6 pm.
All other warnings have now ended and the weather is gradually improving with good sunny periods. There should be some more showers, possibly heavy and squally, during the remainder of Sunday, however.
A further few scattered showers could still arrive on Monday and Tuesday, mainly affecting the north of the island and the mountain areas.
Winds are forecast to become variable light to moderate on Monday and Tuesday and it should be mostly sunny generally.
Current indications are that another Atlantic depression may affect the Canaries on Wednesday with some hope of badly needed rain, but that could once again just pass us by without giving much, if any, precipitation. It is expected to dissipate anyway 😩.
Caution is advised and La Gomera's emergency plan remains activated today (Image: gomeratoday.com)

Saturday, February 11, 2017

Bad weather imminent

A deceptively beautiful but disturbed looking sky at 4pm on Saturday 11-02-2017
This is just a quick update on the weather situation for La Gomera (see previous post):

Today, Saturday 11-02-2017 turned out better than expected but the forecast for tomorrow, Sunday 12-02-17, has worsened considerably and severe weather is imminent, bringing gale force winds, locally heavy downpours, isolated thunderstorms and rough seas. Appropriate weather warnings come into effect from midnight tonight and altogether 7 (seven !) weather alerts at levels from levels 'yellow' to 'orange' have been issued by the Spanish met. office for La Gomera. I won't bore you with all the details, mostly concerning time, and will just give you the synopsis:
From very early morning until late afternoon severe winds and heavy downpours can be expected, as well very rough seas. Synopsis of alerts for La Gomera :
  • Westerly winds may well gust to 90 km/h in exposed areas 
  • Combined swell and wind-blown waves may reach 15-18 ft on exposed coasts
  • Heavy rain is expected with intensities of up to 20 mm/h with localised flooding
  • The combination of rain and wind may cause landslides and rockfalls
Official warnings by Spanish met. office

The government of the Canary Islands has issued separate alerts and ...
  • all public recreational areas, parks, campsites, etc., have been closed.
  • it is advised to secure outdoor furniture, flower pots, etc, etc,...
  • all outdoor events, sporting fixtures, outdoor markets, etc., have been cancelled.
  • unnecessary travel and outdoor activity should be avoided
  • extreme caution is advised generally
With a bit of luck it might not turn out to be as bad after all, but you have been warned...
Anyway, the weather should greatly improve from Sunday afternoon.
The current situation showing that the secondary low will reach 992hPa very rapidly while the main low maintains 994hPa

Friday, February 10, 2017

A windy and rainy weekend in store

Some forecasting models predict this scenario for 6am Sunday morning
SEE latest update (click this)

Wet and windy weekend weather is forecast to affect the Canaries from midnight tonight, even though the sun is shining and there are only a few clouds in Valle Gran Rey as I'm writing this.

A storm depression of 988 hPa is west off the Portuguese coast now and beginning to track south, bringing it closer to the Canary Islands. The depression is expected to be of 994 hPa tomorrow and north of these islands, before moving a bit further away to the north-northeast early on Sunday with an expected 992 hPa. Some models predict that the main depression may spawn-off a secondary but short-lived low very close and just to the north of us (see chart above), which would complicate the situation and may bring higher potential for precipitation.
What all this means is that La Gomera and the rest of the Canaries will be in for spells of rain during Saturday and on Sunday until afternoon. Some of the rain may be heavy in places and isolated thunderstorms can be expected as several frontal systems will pass through the islands. Further, strong westerly winds are expected with gale gusts and seas will be rough with a combination of 3-4 m swell and wind-blown waves.
The following status 'yellow' weather alerts have been issued for La Gomera:
Saturday, Feb. 11th 2017: 
From 00:00 am until 6 pm: Westerly winds gusting to 75 km/h or more in exposed areas.
Sunday, Feb. 12th 2017: 
From 00:00 am until 12 noon: Rain intensity up to 20mm/hour
From 3 am until 3 pm: Winds gusting to 80 km/h or more in exposed areas.
+++ A status 'orange' alert for Sunday from 4 am to 11 am: Gusts of 90+ km/h
The Canarian government has also issued weather alerts and La Gomera's government has called for extreme caution.
While the above weather forecast is not dramatic and not unusual for this time of the year, please bear in mind that the situation is still developing, possibly changing at any time, and that local phenomena and conditions can always spring a surprise.
Please do not put yourself at risk by hiking or walking in the mountains and postpone any such activity until at least a day after the weather has improved. Avoid unnecessary travel and if you must venture out, do so with extreme caution as there's bound to be debris on the roads, and falling stones and rocks are likely due to the wind and rain, especially after the long dry spell we've had. 
Late Sunday and Monday the worst will have passed but the weather will still be unsettled. Also note that warnings may be changed at short notice.
...and the just-issued OPC forecast chart for Sunday noon has confirmed a secondary low of 996hPa (below)

Friday, October 10, 2014

Rain or shine

You do get 'proper weather' in the Canaries sometimes, too. I really enjoyed reading Queenie's post on one of her excellent blogs describing a weather event that sometimes can hit these usually sun-blessed islands of 'eternal spring'. I am reproducing it below, but I've added my own photo of a heavy downpour and wild seas during a storm experienced on La Gomera last winter. Don't worry though, bad weather is rare and short-lived in the Canaries. Actually, the locals hope and pray for rain at this time of the year. To them the rain is as important as the sun is for us.

The Storm

This descriptive writing lark isn’t as easy as I imagined.  Firstly I find it particularly hard to find something to write about and then once I do I’m at a loss at how to create a vivid picture.  It makes you realise just how lacking in language you really are!

Long before technology people relied on observation to avoid being caught off guard by the elements. Despite being raised on the wild northeast coast, I was never good at predicting what was going to happen so inevitably I was taken totally by surprise.
The day started beautifully, the sky was like a dome of plasma-blue but there were those who saw the storm closing in. Within minutes of me setting off for town, the once clear sky became full of thick clouds, staining it a deadly shade of indigo. Birds silenced their song and people ran for cover as the saturated clouds start to rumble and spat out beads of water – it began as a whispering in the air but a storm was brewing.
I quickened my pace but caught the first splatter of rain when I was halfway down the road. I took refuge in a doorway, others huddled under shop awnings or sheltered in cars, their windscreen wipers furiously struggling against the increasingly pounding rain as we waited for the storm to pass but the rainfall became more intense. For a while, those who rushed off to work as they do every morning eventually made a wet scramble to stay on schedule only to be drowned and drenched.
So much rain was falling that the sound blurred into one long whirring noise.  It wasn’t the soft, sodden, swollen drops of spring; it was as if ball bearings were hitting the pavement with force. The thermometer plunged as we huddled together and shivered. For a brief moment, I thought that we might be doomed adventurers, destined to be swept away in a mighty flood but eventually, the noise lessened and we made a break for our destinations.  I hurried inside a small cafe, where the smells of strong coffee and wet woollen coats floated in the air. I chose a seat and gazed out of the steamed up windows every few seconds to check what was happening.
It was only a little after ten o’clock in the morning but the pallor of a winter evening seemed to have closed upon us as the lightning started. It never came through the menacing clouds, just lit them up from above, then the loud rumble of thunder echoed around the almost empty, lifeless streets. Any last remaining footsteps quickly disappear. The wind came in gusts; it blew with such force and swayed, like a drunken man, picking up then quickly releasing the scattered rubbish again and again. Trees surrender as the battering wind forced leaves to be torn off branches.
From the safety of my refuge I looked at the deserted street and the feeble daylight appeared to dim as the dark clouds moved across the sky. A lone dog pattered across the waste ground then threaded its way between the few surviving cars. Then as if some mighty hand had flicked a switch, the sun came out again, casting slanted beams of light across the land. An explosion of birdsong erupted from the dripping trees and it was as if the storm had never been. Steam climbed slowly from the rapidly drying ground. It rose up eerily and drifted mist-like towards the molten-gold sun. The image was so vivid that it stayed with me all the way home.