Brisbane on Alert: Extreme Heat Meets Evening Storms

Morning: A Sizzling Start Under Intense Sun

Brisbane residents are waking up to a warm and humid start this Thursday, February 12, 2026. Early morning temperatures have already hovered around a minimum of 24°C, setting the stage for a significantly hot day ahead. The Bureau of Meteorology has issued a sun protection recommendation starting as early as 8:00 am, as the UV Index is predicted to reach an extreme level of 12. Local health authorities advise residents to wear sun-protective clothing, apply sunscreen, and seek shade during the peak daylight hours.

Light winds are expected to build throughout the morning, shifting from the northwest to northeasterly directions at speeds between 15 and 25 km/h. While the morning may appear relatively clear, the high humidity—measured near 90% in the early hours—will make the apparent temperature feel much higher than the actual reading on the thermometer.

Afternoon: Peak Temperatures and Increasing Clouds

The heat will intensify through the middle of the day, with the mercury expected to climb to a maximum of 36°C, though some local stations may see peaks as high as 37°C. This extreme heat has triggered a moderate fire danger rating for the Brisbane area, urging residents to remain vigilant. By the mid-afternoon, clouds are expected to begin building over the Great Dividing Range and move toward the coast.

While the first half of the day remains largely dry, the atmosphere will become increasingly unstable. The combination of high surface temperatures and moisture is likely to produce isolated thunderstorms by the late afternoon. Residents should take advantage of the early afternoon to secure loose outdoor items before conditions potentially deteriorate.

Evening: Severe Storm Warning and Rainfall Outlook

The most significant weather shift is forecast for the evening hours. There is a high chance of showers (80%), with rainfall totals predicted between 1 mm and 20 mm. However, the primary concern for the evening is the risk of severe thunderstorms. Forecasters have warned that these storms may bring heavy localized rainfall, which could lead to flash flooding in low-lying suburban areas and on major roadways.

Winds will tend toward the east to northeasterly at 15 to 20 km/h as the sun sets. The temperature will remain mild overnight, only dropping back into the low 20s. Commuters are advised to exercise caution on the roads during the evening peak, as visibility may be reduced during heavy downpours.

Key Weather Facts for Thursday, 12 February:

• Temperature Range: Minimum of 24°C; Maximum of 36°C.
• Rainfall: 80% chance of rain, most likely in the late afternoon and evening.
• UV Index: Extreme (12); protection required between 8:00 am and 4:00 pm.
• Wind: Morning NW/NE at 15-25 km/h, shifting to E/NE in the evening.
• Alerts: Severe thunderstorm potential with a risk of flash flooding.
• Daylight: Sunrise at 5:28 am and sunset at 6:34 pm.