Weather News for September 17

Tropical Storm Gabrielle Forms in the Atlantic

Tropical Depression Seven has strengthened into Tropical Storm Gabrielle, becoming the seventh named storm of the 2025 Atlantic hurricane season.¹ As of Wednesday, September 17, Gabrielle is located in the central Atlantic and is moving northwestward, posing no immediate threat to land.² Forecasters expect the storm to intensify over the coming days and could reach hurricane strength over the weekend as it remains over open waters.³ The formation of Gabrielle marks a change in what has been a relatively quiet period during the peak of the Atlantic hurricane season.⁴

• Source: The National Hurricane Center (NHC) Advisory⁵
• Source: https://www.nhc.noaa.gov/refresh/graphics_at2+shtml/170834.shtml?wwCone

Coastal Storm Continues to Impact the Mid-Atlantic

A non-tropical coastal storm is continuing to bring heavy rain, gusty winds, and coastal flooding to the Mid-Atlantic region, particularly in parts of Virginia and North Carolina.⁶ The storm, which is reminiscent of a nor’easter, has already produced impressive rainfall totals and strong winds.⁷ The National Weather Service reports that the system is expected to weaken as it moves over land, but a few more days of unsettled weather are likely before it moves out of the region.

• Source: National Weather Service
• Source: https://www.weather.gov/

Remnants of Former Tropical Storm Mario Bring Rare Rain to Southern California

Tropical moisture associated with the remnants of former Tropical Storm Mario in the Eastern Pacific is being pulled northward, bringing a rare September rain threat to Southern California.⁸ The National Weather Service has highlighted a risk of flash flooding in parts of Southern California and the Desert Southwest.⁹ This rainfall is beneficial for the region, which has been experiencing dry conditions.

• Source: NOAA Weather Prediction Center
• Source: https://www.noaa.gov/weather-prediction-center

Disclaimer: This information was researched and curated with the assistance of AI, but reviewed and verified by a human.