Storms and a coming cold front sweep several US regions
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The gist
Forecasters flag scattered storms from Florida to Georgia, with rain chances up to 100% in Chattanooga.
A cold front is set to bring cooler, drier air by the weekend.
Background
The National Weather Service, the US agency that issues official forecasts and weather alerts, and local TV meteorologists are tracking a warm, humid air mass and an approaching cold front across several regions on Nov 4, 2026. Tropical moisture is keeping temperatures above average in North Central Florida, while a plume of Gulf and Atlantic moisture is moving into the Finger Lakes region of New York. The front is expected to bring more seasonable weather, with humidity dropping and temperatures returning closer to normal by the weekend.
How it unfolded
- Nov 3, 2026Hattiesburg, Miss. sees a 40% chance of showers, mainly between 1 p.m. and 3 p.m., cloudy with a high near 82.
- Nov 4, 2026Chattanooga, Tenn. is under a Storm Alert Weather Day for potential isolated severe storms, with a 100% chance of rain and locally heavy rainfall possible.
- Nov 4, 2026Cobb County, Ga. faces a 90% chance of showers and thunderstorms, with a hazardous weather outlook for possible isolated flash and nuisance flooding.
- Nov 4, 2026North Central Florida sees a partly sunny morning with scattered afternoon storms and highs in the mid-80s; Maui has breezy trade winds and scattered showers.
- Nov 4, 2026The Finger Lakes region has high confidence for showers tonight ahead of a cold front, with Thursday highs near 70 and a 49% chance of precipitation.
Key terms
- cold front
- The leading edge of a cooler air mass that pushes under and replaces a warmer air mass at ground level.
- air mass
- A large volume of air whose temperature and humidity are fairly uniform horizontally.
Source: Wikipedia
Who’s saying what
- Official
- The National Weather Service issued a hazardous weather outlook for Cobb County, warning that isolated flash flooding and nuisance flooding of creeks, streams and roadways is possible.
- Expert
- TV20 meteorologist A.J. Willy said temperatures stay above average with higher humidity, and that after lunchtime it's fair game for some storms in North Central Florida.
- Caution
- Local 3 meteorologist Clay Smith declared today a Storm Alert Weather Day in Chattanooga due to the potential for isolated severe storms this afternoon.
Still unverified
A cluster of storms attached to the cool front has a moderate (40%) chance of developing over the next week, hundreds of miles off the American coast, according to the forecast material.