Severe Storm Alert: Flash Flood Risk and Heavy Deluge for Brisbane this Friday

Wet Weather Warning: A Stormy End to the Week

Brisbane residents should prepare for a significant weather event today, Friday, 13 February 2026. Forecasts indicate a high-pressure system clashing with moist tropical air, bringing a very high probability of rain and the potential for severe thunderstorms. The Bureau of Meteorology has signaled a 99% chance of precipitation, with heavy falls expected to impact the metropolitan area throughout the day. Residents are advised to keep umbrellas handy and monitor local alerts, as the sheer volume of rain could lead to localized flash flooding.

Morning: Winds Pick Up as Clouds Roll In

The day began with thick cloud cover and a high humidity level of approximately 87%. During the morning hours, initial southerly winds of 15 to 20 km/h are expected to shift, becoming southeasterly and increasing in strength to between 20 and 30 km/h. This shift will likely herald the arrival of the first significant bands of rain. Commuters should expect slippery road conditions and potential delays during the morning peak as the first showers move through the CBD and surrounding suburbs.

Afternoon: Peak Storm Risk and Humidity

Temperatures will remain relatively suppressed due to the heavy overcast conditions, with a forecast maximum of 25°C. However, the high humidity—reaching up to 96%—will make the air feel significantly heavier, with a 'feels like' temperature closer to 29°C. The afternoon carries the highest risk for severe thunderstorms. These storms may bring intense, short-duration rainfall that poses a genuine risk of flash flooding in low-lying areas. The UV index remains at a moderate level of 3, though sun protection is still recommended during any brief breaks in the cloud cover.

Evening: Heavy Falls to Persist Into the Night

As the sun sets at 6:34 pm, the intensity of the rain is not expected to diminish. Evening predictions suggest continued heavy rain and a 75% chance of further thunderstorm activity into the night. Temperatures will dip to a mild overnight low of 22°C. With total rainfall estimates for the 24-hour period potentially exceeding 36mm, residents in flood-prone areas should remain vigilant.

Friday Weather Summary

• Temperature Range: A low of 22°C and a high of 25°C.
• Rainfall: Near 100% chance of rain with heavy falls and severe storm potential.
• Wind: Southeasterly winds reaching 30 km/h by midday.
• Warnings: Severe thunderstorm warning and flash flood alert in effect for the Brisbane region.

Stay safe on the roads and ensure all loose outdoor items are secured as these storms pass through the South East.