Current ANEPC Warning To The Population.

AP / 2 / DCS / 2020

DATE 2020-01-17

TIME 15:00

NOTIFICATION TO THE POPULATION

RAINFALL, WIND AND SNOWFALL

 

  1. SITUATION

Weather situation:

  • According to the information available from the Portuguese Institute of Sea and Atmosphere (IPMA), the following weather chart is highlighted for the next 48 hours:
  • Periods of rain or heavy showers, which are expected to occur during the early hours of Saturday, between 00h00 and 06h00, in the Centre region, with a possible incidence in the Lisbon and Tagus Valley regions. Accumulated levels ​​of up to 40 mm in 6 hours are forecast;
  • Snowfall at dawn on Saturday above the 1600-metres level in Guarda and Castelo Branco districts, expected at the end of the day;
  • Wind strengthening during the weekend. Tomorrow (18 JAN) light to moderate winds (up to 30 km / h) from the south quadrant, sometimes blowing strong (up to 40 km / h) on the western coast with gusts up to 65 km / h and moderate to strong (30 km / h) 50 km / h) in the highlands, sometimes with gusts up to 100 km / h, gradually moving northwest.
  • On Sunday (19 JAN) moderate winds (up to 30 km / h) from the north quadrant, sometimes blowing strong (up to 40 km / h) on the western coastal strip. In the highlands the wind will be strong (35 to 55 km / h) from the northern quadrant, sometimes gusting to 110 km / h;
  • Decreasing temperatures especially at a low on Sunday, which in combination with wind will increase the sensation of thermal discomfort.

From Sunday (JAN 19) until mid-next week a cold and dry weather forecast is expected.

 

Relevant hydrological information:

  • Lima River Basin: 67% Alto Lindoso Dam;
  • Cávado River Basin: Caniçada (77%) and Vilarinho das furnas (70%);
  • Douro Basin: in the tributaries controlled, Torrão Dam at 73% (Tâmega River) and Tabuaço Dam at 93% (Távora River);
  • Mondego Basin: 63% Aguieira Dam, 65% Rabies Dam and 46% Fronhas Dam;
  • Tagus Basin: 83% Cabril Dam and 93% Castelo de Bode Dam.

 

It is expected that the accumulated at dawn can reach values ​​up to 40 mm in 6 hours, so keeping vigilance is required to anticipate the increase of quota of watercourses.

Particular attention should be paid to areas historically identified as vulnerable to flooding and in particular to non-regularized and rapidly flowing river basins.

Follow the weather forecasts at www.ipma.pt

 

  1. EXPECTED EFFECTS

Given the expected weather situation, the following effects may occur:

  • Slippery road surface and possible formation of water and ice patches;
  • Possibility of rapid floods in urban areas, due to rainwater accumulation or insufficient drainage systems;
  • Possibility of flooding by transhipment of water lines in historically most vulnerable areas;
  • Flooding of underground urban structures with drainage deficiencies;
  • Drainage difficulties in coastal urban systems, particularly those experienced during periods of sea beach, which may cause flooding in historically most vulnerable places;
  • Damage to mounted or suspended structures;
  • Possibility of falling branches or trees due to strong wind, as well as affecting infrastructure associated with communications and energy networks;
  • Possible accidents on the coast;
  • Landslips caused by instability of slopes associated with soil saturation, due to loss of consistency.

 

  1. PREVENTIVE MEASURES

The ANEPC recalls that the possible impact of these effects can be minimized, especially through the adoption of appropriate actions. Therefore, in particular in the historically most vulnerable areas, the observation and dissemination of the main self-protection measures for these situations is recommended, namely:

  • Ensure the clearing of storm water drainage systems and the removal of inert and other objects that can be dragged or create obstacles to the free flow of water;
  • Adopt defensive driving, reducing speed and paying particular attention to the formation of water on the roads;
  • Do not cross flooded areas to avoid falling or vehicles falling into open potholes or sewage boxes;
  • Ensure proper attachment of loose structures, such as scaffolding, placards and other suspended structures;Take special care in travelling and staying near wooded areas, paying attention to the possibility of falling branches and trees, due to stronger wind;Take special care in the circulation near the coast and riverside areas historically more vulnerable to coastal flooding, avoiding if possible travelling or staying in these places;Do not practice activities related to the sea, such as sport fishing, water sports and walks by the sea, avoiding the parking of vehicles very close to the seafront;

Be aware of weather information

 

Translated by Safe Communities Portugal

 

 

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