SANTA CRUZ DE TENERIFE, Dec. 9 (EUROPA PRESS) –
The Canary Islands have left behind a very warm month of November, with an average temperature of 19.6 ºC, which represents an anomaly of 1.8 ºC more than the average of the reference series, so it can be classified as the second warmest since 1961. In the case of the province of Las Palmas, it has been the warmest since that year.
According to the Climatological Advance of the Canary Islands corresponding to the penultimate month of the year, the average value of accumulated rainfall was 4.9 mm, a precipitation value that corresponds to a very dry nature, reaching only 10% of the average rainfall expected for a month of November, according to the reference series. It has been the third driest November since 1961.
Anticyclonic situations have predominated throughout the month, with a few days of weakening of high pressures. This last circumstance, together with the low pressures on the African coast, allowed the entry of the flow of the southern component, which was reinforced, in the case of days 13 to 16, by the presence of a small center of low pressure to the southwest of the Canary Islands. , generated a warm advection that left the highest temperature records for the month.
In general, in addition to the aforementioned episode, temperatures remained above the reference average throughout the month, registering, likewise, a good number of days and seasons with tropical nights, covering all the Islands: La Gomera, Hermigua (2 days), Airport (3 days), San Sebastián (17 days); Tenerife, Guía Isora (3 days), Pozo (4 days), Lomo del Balo (1 day), Arico (8 days), Tenerife-South Airport (4 days), Santa Cruz (15 days), Puerto de la Cruz ( 1 day); Gran Canaria, Tejeda (3 days), Agaete (20 days), Lomo Pedro Afonso (5 days), Tasarte (3 days), Mogán-Puerto Rico (16 days), Playa del Inglés (3 days), El Matorral Juan Grande (7 days), Airport (14 days), Telde-Melenara (15 days), Las Palmas de Gran Canaria (24 days).
La Palma, Fuencaliente (19 days), Tazacorte (3 days), Airport (14 days); Fuerteventura, Puerto Morro Jable (19 days), Tuineje-Gran Tarajal (7 days), Airport (17 days); El Hierro, Tacorón (8 days), Airport (27 days), Sabinosa (12 days); Lanzarote, Tias-Las Vegas (3 days), Yaiza-Playa Blanca (2 days); La Graciosa, 6 days with tropical nights.
PRECIPITATION
The month of November has been characterized by the scarce rainfall collected. Although the anticyclonic situations were the ones that dominated during a good part of the period, the contributions of humidity from the trade winds were not enough to generate precipitation, with the exception of two episodes. In the Atlantic region to the north of the archipelago, the storms and their associated fronts moved in zonal trajectories, far to the north of the Canary Islands, without approaching the Islands.
Between days 4 and 6 there was generally weak and locally moderate rainfall, which only affected the western islands, concentrating in the northeast of La Palma and Tenerife and north of El Hierro and La Gomera. Of particular note are the 20.4 mm registered in San Andrés y Sauces (La Palma) between 07:00 on the 5th and 07:00 on the 6th, as well as the 16.4 mm in Taganana (Tenerife), between 07:00 on the 4th and 07:00 hours of day 5. With an anticyclonic situation over the islands, and a flow from the north, the episode was caused by the arrival of an air mass with a greater thickness of humidity.
Between the 18th and the 21st, as in the case of the previous episode, an anticyclonic situation occurred from the 18th, with a high pressure center located to the west of Madeira. The generated northern component flow allows the arrival of humid and unstable air masses, coming from a frontolysis front, associated with several centers of low pressure over the North Atlantic.
This situation left rainfall throughout the archipelago, although with a very uneven distribution. They affected the northeast of La Palma (16.8 mm between 07:00 on the 20th and 07:00 on the 21st in San Andrés y Sauces), north of Tenerife, where they were generally weak, with the exception of the Las Mercedes-Llano de los record. of 14.6 mm between 07:00 on the 20th and 07:00 on the 21st. They were also weak in the north of El Hierro (maximum recorded 6.4 mm Dehesa-Refugio, between 07:00 on the 20th and 07:00 on the 21st) and La Gomera (maximum recorded 5.8 mm Vallehermoso-Alto Igualero, between 07:00 on the 20th and 07:00 on the 21st).
In Lanzarote and Fuerteventura and La Graciosa, rainfall was very weak -almost negligible-, with records that oscillated between 0.3 mm and 1.0 mm. In Gran Canaria, rainfall was somewhat more abundant, with some records of moderate rainfall, on the northern and eastern slopes, highlighting the 11.0 mm recorded in Teror between 07:00 on the 19th and 07:00 on the 20th and 17.8 mm measured in Valleseco during the same period, and, above all, in summits, where the 28.6 mm accumulated between 07:00 on the 19th and 07:00 on the 20th in Corral de los Juncos (San Mateo) stood out, and, above all, the 32.4 mm between 07:00 on the 20th and 07:00 on the 21st and the 44.2 mm between 07:00 on the 19th and 07:00 on the 20th, both recorded at Cruz de Tejeda. The latter is the highest rainfall recorded in the Canary Islands during the month.
