Rain and Low Temperatures Forecasted for Georgia

Bryan Dijkhuizen

At this moment, a powerful southern shortwave is still moving through the CWA. Connected with the system, a surface low has moved through the Florida peninsula and into the Atlantic, following the baroclinic zone left by our recent frontal passage.

It will continue to travel Northeast with the most substantial upper-level divergence associated with the shortwave. With the shortwave lingering over Alabama, a mid-to-upper level low has developed and slowly heading east to Northeast.

Rain has swiftly flooded the area, putting a halt to any evaporation or sublimation. There have been reports of ice pellets forming due to evaporation and sublimation in north Georgia, helping to keep the ice cold enough to fall before melting.

However, these times are unlikely to stay long since temperatures are too high for accumulations.

Speaking of temperatures, the climate over the CWA continues to be quite chilly, owing to a combination of a lack of solar insulation and evaporation cooling.

Even into the afternoon, temperatures remained in the upper 30s to mid-40s, with the perfect temperatures in northwest Georgia, where the rain waited longer to begin.

Even while the rain is forecast to finish by the evening, clouds will continue to persist into the night, making it unlikely that these temperatures will rise much higher at this time.

As the upper-level system advances to the east, clearing should begin by the early hours, bringing confluent flow aloft and additional subsidence with it.

SFC high-pressure system will begin to push towards the region tomorrow morning into the afternoon, while a broad SFC low will begin to push away from the coast.

In between, there will be a pressure gradient that will bring some gustier winds into the region, as well as another rush of colder, drier air that will help to consolidate our already established airmass.

Sounds from models have a traditional appearance, with a chilly surface airmass inversion under a warm, arid air mass above. This typically allows some afternoon mixing of stronger winds and drier air to the surface, which many models fail to manage accurately.

Even though we don't have the most powerful reinforcing shot of cold air, the most frigid air is still north of the CWA thanks to a rapidly departing SFC low that has reached far into the Northeastern United States, so afternoon temperatures will still reach up into the 50s with afternoon heating and clear skies.

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