Fim de semana em Santa Catarina tem alerta para temporais

Weekend in Santa Catarina Under Alert: Cold Front at Sea Increases Risk of Storms with Heavy Rain, Strong Winds, and Possibility of Hail

Written by Jefferson Augusto

Published on 17/01/2026 at 21:58

Defesa Civil alerta para temporais e ventos fortes no estado

Be the first to react!

Cold Front Over The High Sea Intensifies Instabilities, Maintains Heat, and Puts Santa Catarina on High Alert for Thunderstorms, Floods, and Disruptions Between Saturday and Sunday

Intense rain and stormy sky in Santa Catarina during Civil Defense alert — Civil Defense warns of thunderstorms and strong winds in the state

The weekend in Santa Catarina with risk of thunderstorms mobilizes authorities and puts the population on alert. Since the beginning of Saturday (17), the presence of a cold front over the high sea intensifies atmospheric instabilities, favoring heavy rain, lightning, strong winds, and possible hail in various regions of the state. Additionally, despite the rain, the heat persists, increasing the feeling of stuffiness and enhancing storm formation.

The information was released by g1 Santa Catarina, based on data from the state Civil Defense, which reinforced warnings for flooding, landslides, roof damage, and damage to the power grid throughout the weekend.

ARTICLE CONTINUES BELOW

Thunderstorms Gaining Strength on Saturday with High Heat and Humidity

During the morning of Saturday (17), the sun still appears in a large part of Santa Catarina. However, as the afternoon progresses, the combination of heat, high humidity, and the cold front at sea favors the development of thunderstorms. These events occur mainly from the early afternoon onwards.

Furthermore, the thunderstorms may be accompanied by frequent lightning, gusty winds, heavy rain in a short period, and localized hail. According to the Civil Defense, the risk of occurrences such as flooding, falling branches, and power outages significantly increases during this period.

Despite this, throughout the night, the instabilities tend to weaken. Nonetheless, isolated areas may continue to experience moderate rain, especially along the coast and in the Itajaí Valley.

Sunday Maintains Instability and Increases Flood Risk on the Coast

On Sunday, the scenario changes little. Since the morning, the sky shows more clouds and fewer openings of sun, allowing for rain to occur in the early hours of the day. Nonetheless, it is in the early afternoon that new thunderstorms start to form again in Santa Catarina.

Unlike Saturday, these storms are expected to occur in a more isolated manner. Still, they maintain the potential for heavy rain, lightning, strong winds, and localized hail. Additionally, at night, instability increases in the North Coast and the Itajaí Valley, raising the risk of flooding and urban flash floods.

Meteorological maps released by the Civil Defense indicate areas with moderate to high risk for structural damage, especially in coastal and hillside regions.

Civil Defense Reinforces Safety Guidelines for the Population

In light of the thunderstorm scenario in Santa Catarina, the Civil Defense reinforced a series of preventive recommendations. The goal is to reduce risks and avoid accidents during periods of heavy rain and strong winds.

Among the main recommendations are:

Never cross flooded streets or submerged bridges
Avoid driving in places with water accumulation
Avoid direct contact with floodwater
Avoid walking or biking along the shore when waves reach the street
During strong winds, seek safe shelter
Stay away from trees, poles, signs, windows, and loose objects

In emergency situations, the population should contact the Fire Department at phone number 193 or the Civil Defense at 199.

Have you ever faced flooding or disruptions caused by thunderstorms in Santa Catarina? How was the experience?

Weekend in Santa Catarina Under Alert: Cold Front at Sea Increases Risk of Storms with Heavy Rain, Strong Winds, and Possibility of Hail

Thunderstorms Gaining Strength on Saturday with High Heat and Humidity

Sunday Maintains Instability and Increases Flood Risk on the Coast

Civil Defense Reinforces Safety Guidelines for the Population

Forget petroleum-based asphalt: a Scottish company transforms 684,000 plastic bottles into one kilometer of road that is 60% more resistant and up to 10 times more durable, and the technology has already started replacing traditional asphalt in more than 30 countries.

With billions in loans, China is rebuilding Nigeria’s railway network from scratch, abandoning the British colonial tracks that have turned to scrap and creating a corridor of over 1,300 km to take the load off the roads of Africa’s largest economy.

Austrian engineers have developed an inflatable concrete technology that transforms flat slabs into domes using only air pressure, eliminating scaffolding and temporary forms, and potentially changing the way bridges, tunnels, and curved roofs are constructed worldwide.

Australia prepares to dredge 96.5 million m³ in Moreton Bay to deepen, widen, and realign channels of the Port of Brisbane, in a project of up to 25 years designed to accommodate larger ships and enhance maritime safety and regional port efficiency.

Study solves great ancient mystery: remains of Philip II, father of Alexander the Great, are identified in Vergina and resolves the enigma of the Macedonian royal tombs that had lasted half a century.

Larger than the Toyota Hilux and with a towing capacity of 3.5 tons, the new MG U9 2026 features a 2.5 turbodiesel engine, 520 Nm, 4×4 traction with three locks, and an almost full-size build.

For the first time in history, a submarine cable will descend to four thousand meters deep under the ice of the North Pole to ensure that the internet between Europe and Asia no longer depends on conflict zones in the Middle East.

While the world discusses geopolitics, China is quietly closing a deal with its Kazakh neighbor to secure grain supplies during any global food crisis, with more than 3,600 Kazakh companies already able to export directly to the Chinese market.

A British company has installed in the middle of the ocean the world’s first floating platform that generates electricity 24 hours a day from the temperature difference between the surface and the depths of the Atlantic, without relying on wind or sun.

Amid the United States’ economic blockade, China delivers 15,000 tons of rice to Cuba as part of a 60,000-ton donation personally approved by Xi Jinping. The package includes 80 million dollars and solar panels for hospitals.

The James Webb telescope spotted a planet 700 light-years from Earth with mornings full of sand clouds and nights with clear skies, the temperature difference between the two hemispheres reaches an impressive 170 degrees.

Weekend in Santa Catarina Under Alert: Cold Front at Sea Increases Risk of Storms with Heavy Rain, Strong Winds, and Possibility of Hail

Thunderstorms Gaining Strength on Saturday with High Heat and Humidity

Sunday Maintains Instability and Increases Flood Risk on the Coast

Civil Defense Reinforces Safety Guidelines for the Population

Forget petroleum-based asphalt: a Scottish company transforms 684,000 plastic bottles into one kilometer of road that is 60% more resistant and up to 10 times more durable, and the technology has already started replacing traditional asphalt in more than 30 countries.

With billions in loans, China is rebuilding Nigeria’s railway network from scratch, abandoning the British colonial tracks that have turned to scrap and creating a corridor of over 1,300 km to take the load off the roads of Africa’s largest economy.

Austrian engineers have developed an inflatable concrete technology that transforms flat slabs into domes using only air pressure, eliminating scaffolding and temporary forms, and potentially changing the way bridges, tunnels, and curved roofs are constructed worldwide.

Australia prepares to dredge 96.5 million m³ in Moreton Bay to deepen, widen, and realign channels of the Port of Brisbane, in a project of up to 25 years designed to accommodate larger ships and enhance maritime safety and regional port efficiency.

Study solves great ancient mystery: remains of Philip II, father of Alexander the Great, are identified in Vergina and resolves the enigma of the Macedonian royal tombs that had lasted half a century.

Larger than the Toyota Hilux and with a towing capacity of 3.5 tons, the new MG U9 2026 features a 2.5 turbodiesel engine, 520 Nm, 4×4 traction with three locks, and an almost full-size build.

Factory created by Dom Pedro II in Petrópolis becomes a million-dollar bet to transform the former textile empire into a gastronomic hub with a gourmet market and historical tourism.

Devastating rains leave 27 cities in emergency in Pernambuco, cause deaths by landslides and floods, and expose a critical scenario with hundreds of families homeless.

Florianópolis has almost 54 hectares at risk of landslides, an area equivalent to 14 Parques da Luz, with 56% at a very high level, while another 28 hectares of the capital are already vulnerable to floods, inundations, and flash floods, a survey indicates.

New public maternity hospital in Rio de Janeiro changes the reality for pregnant women and aims for 400 births per month.

Minas exchanges horse-drawn carriages for electric models in tourist cities, with municipal laws, support from the Public Ministry, and compensation for operators to maintain the ride and reduce risks in transporting visitors.

For the first time in history, a submarine cable will descend to four thousand meters deep under the ice of the North Pole to ensure that the internet between Europe and Asia no longer depends on conflict zones in the Middle East.

While the world discusses geopolitics, China is quietly closing a deal with its Kazakh neighbor to secure grain supplies during any global food crisis, with more than 3,600 Kazakh companies already able to export directly to the Chinese market.

A British company has installed in the middle of the ocean the world’s first floating platform that generates electricity 24 hours a day from the temperature difference between the surface and the depths of the Atlantic, without relying on wind or sun.

Amid the United States’ economic blockade, China delivers 15,000 tons of rice to Cuba as part of a 60,000-ton donation personally approved by Xi Jinping. The package includes 80 million dollars and solar panels for hospitals.

The James Webb telescope spotted a planet 700 light-years from Earth with mornings full of sand clouds and nights with clear skies, the temperature difference between the two hemispheres reaches an impressive 170 degrees.