Brazil storm alerts in 11 states on Sunday, Nov. 15

Brazil's National Institute of Meteorology (INMET) has yellow-level warnings ("Potential Danger") in effect on Sunday, Nov. 15, for heavy rain and thunderstorms across much of the country. The widest is the yellow thunderstorm warning, which runs from midnight to 11:59 p.m. Brasília time and covers 2.633 municipalities. The area includes Goiás, Minas Gerais, Paraná, Santa Catarina, São Paulo, Espírito Santo, Mato Grosso do Sul, Bahia, Mato Grosso, Rio de Janeiro and Rio Grande do Sul, according to the institute's warnings panel. No orange or red warnings were in effect when the panel was checked early in the morning.

INMET says the storms can bring rain of 20 to 30 mm per hour or up to 50 mm per day, winds of 40 to 60 km/h and hail. The institute lists a low risk of power outages, crop damage, fallen tree branches and flooding. The state capitals inside the warning area are Vitória, Goiânia, Campo Grande, Belo Horizonte, Curitiba, Rio de Janeiro, Florianópolis and São Paulo.

What INMET recommends

During wind gusts, INMET advises people not to shelter under trees, because of the slight risk that trees fall or are struck by lightning, and not to park vehicles near transmission towers or billboards. The institute also asks people to avoid using plugged-in electronics. For more information, contact Brazil's civil defense agency, Defesa Civil, by calling 199, or the fire department, Corpo de Bombeiros (phone 193).

Other warnings in effect

A second yellow warning, for heavy rain, covers 533 municipalities in Ceará, Bahia, Pará, Tocantins, Maranhão, Piauí, Pernambuco and Mato Grosso, including two capitals: Teresina and Palmas. A yellow heavy-rain warning is also in effect for three municipalities in Amapá, from 6 p.m. on Saturday (Nov. 14) until 11:59 p.m. on Sunday. In these cases INMET forecasts rain of 20 to 30 mm per hour or up to 50 mm per day and winds of 40 to 60 km/h, with a low risk of flooding, fallen branches and lightning strikes.

Boa Vista has the highest forecast high; Curitiba and São Paulo have the coolest nights

In INMET's Sunday forecast, the hottest capital is Boa Vista, with a high of 37 °C and a low of 27 °C, followed by Macapá and Manaus, both with highs of 36 °C. At the other end, Curitiba and São Paulo have the lowest overnight temperatures, 16 °C, with forecast highs of 28 °C and 29 °C, respectively. The lowest highs are in Porto Alegre and Florianópolis, both at 26 °C.

For the 24 hours after the early-morning check, the MET Norway model estimates the largest rainfall totals in Campo Grande (about 23 mm), Curitiba (about 20 mm) and Salvador (about 15 mm). These are model estimates, not measurements, and actual amounts can vary widely from one neighborhood to the next.

Forecast for capitals in the Southeast, South and Center-West

• São Paulo: high of 29 °C and low of 16 °C, with mostly cloudy skies, showers and isolated afternoon thunderstorms, according to INMET.
• Rio de Janeiro: high of 30 °C and low of 20 °C, cloudy with rain, and isolated thunderstorms in the afternoon.
• Belo Horizonte: high of 32 °C and low of 19 °C, with overcast skies, showers and thunderstorms.
• Curitiba: high of 28 °C and low of 16 °C, with mostly cloudy skies in the morning and showers and thunderstorms in the afternoon.
• Florianópolis: high of 26 °C and low of 21 °C, with overcast skies, showers and thunderstorms.
• Porto Alegre: high of 26 °C and low of 18 °C, with overcast skies and afternoon showers.
• Vitória: high of 29 °C and low of 22 °C, cloudy with rain in the morning, and showers and thunderstorms in the afternoon.
• Brasília: high of 29 °C and low of 17 °C, cloudy with rain.
• Goiânia: high of 31 °C and low of 22 °C, cloudy with showers and thunderstorms.
• Cuiabá: high of 35 °C and low of 25 °C, with mostly cloudy skies and rain.
• Campo Grande: high of 32 °C and low of 22 °C, with overcast skies, showers and thunderstorms.

Outlook for Monday (Nov. 16)

A yellow INMET thunderstorm warning is already in place for Monday, Nov. 16, this time covering 2.819 municipalities in 15 states and the Federal District: Goiás, Minas Gerais, Ceará, Bahia, Pará, Tocantins, Maranhão, Piauí, Mato Grosso, São Paulo, Espírito Santo, Pernambuco, Mato Grosso do Sul, Rio de Janeiro, the Federal District and Paraná. The institute names Brasília, Vitória, Goiânia, Cuiabá, Campo Grande, Belo Horizonte, Rio de Janeiro, São Paulo and Palmas among the capitals affected. In its forecast, lows drop to 15 °C in Curitiba and São Paulo, and Curitiba's high is 24 °C. Warnings can be updated throughout the day; the information reflects the time of the check, early on Sunday morning (Brasília time).

Sources

• INMET: weather warnings
• INMET: weather forecast
• MET Norway: forecast data
• RaisLife: Weather

Text by Rai, RaisLife's virtual reporter (artificial intelligence), with automated editorial review. Data: raislife.com/clima.