NWS Atlanta/Peachtree City, Georgia

Slides: www.srh.noaa.gov/ffc/html/briefi ngs.php

NWS Weekly Weather BriefingApril 19, 2023

Current Trends

http://go.usa.gov/K4wY

Prolonged Rainfall• Rain moving in from the

south today• No chance for

thunderstorms• Good soaking rain• 1.0 to 1.5 inches south

of Cedartown-Cleveland line

Windy Today/Tonight

Snow Tonight Northeast Georgia

• WPC forecast probability of snow > 1”

• 20-40% likelihood/ confidence

Snow Tonight Northeast Georgia

• Amounts: 1-2”, 2-3” in higher elevations

• Timing: Moving in from south, should switch to rain/snow mix after 6pm. Should change back to all rain by mid-morning Friday

• Impacts: Accumulating snow, mainly on grassy and exposed surfaces

Uncertainty in Snow Forecast

• Temperatures should remain steady or slowly warm overnight

• If we are fortunate, we could remain above freezing, minimizing impacts

Uncertainty in Snow Forecast

Freezing line

Below freezing

Above freezing

NAM Computer Forecast

GFS Computer Forecast

Waiting for the WeekendSaturdays Highs Sundays Highs

Slight chance of rain Sunday

• Thunderstorms not expected at this time

• Winter precipitation not expected

• Rainfall < ¼”

Better chanceTuesday night-Wednesday night

• Thunderstorms not expected at this time

• Winter precipitation not expected

• Rainfall < ½”

Summary1-2” wet snow possible NE Georgia tonight

Timing: Approx 7p tonight – 10a FridayImpacts: some accumulation on roads possibleConfidence: Low (could be too warm for accumulating

snow)

Chance of rain Sunday, better chance Tuesday night-Wednesday nightNo thunderstorms or winter weather expectedRainfall amounts of ½ inch or less

Above normal temperatures beginning Saturday

Slides: www.srh.noaa.gov/ffc/html/briefings.php