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Tuesday, November 18, 2014

Bad weather for rest of week - Weather warnings

OPC chart for noon Wednesday 19-11-14
Unsettled weather is beginning to affect the Canary Islands from tonight for much of the remainder of the week according to all forecast models. Colder air from polar regions is streaming down and beginning to interact with the still very warm air and sea temperature around the Canaries. A series of low pressure systems are expected to form north of the archipelago and associated cold fronts will bring rain from west to east. The first of these will bring showers, some heavy and prolonged, affecting western islands from early tonight. Thunderstorms may also be expected.
Over the coming days the unsettled weather will continue with occasional thunderstorms, showers or longer spells of rain and some very windy periods. It will be colder than of late but still up to the low 20's ÂșC max. in the sunny periods that may also be experienced - but beware as these may not last very long.
The first weather warnings for La Gomera predict rainfall accumulations of 25mm in just one hour and 60mm in 12 hours. There is also a warning of thunderstorms. It is advisable to cancel all activities in mountain terrain and near riverbeds.

Update Thursday, Nov. 19th '14, @ 11:30 am:
A fair bit of rain fell during last night, but nothing extreme. It is overcast now, but dry and quite pleasant with some patches of blue in the sky. Further showers are expected, however, and the approaching next cold front could bring thunderstorms and heavy bursts of rain.
Update,  Nov. 19th '14, 9 pm:
There's another weather warning of rain accumulations of 20mm in one hour and 60mm in 12 hours and for thunderstorms for the period from 6am tomorrow morning until 11 pm tomorrow night.
The situation at 5pm Tuesday. Canary Islands are at far right

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