Spot Forecast
Issued by NWS Atlanta, GA
Issued by NWS Atlanta, GA
792 FNUS72 KFFC 082207 FWSFFC Spot Forecast for TASTE OF ALPHARETTA...ALPHARETTA PUBLIC SAFETY National Weather Service Peachtree City GA 607 PM EDT Wed May 8 2024 Forecast is based on forecast start time of 0000 EDT on May 09. If conditions become unrepresentative...contact the National Weather Service. .DISCUSSION... Not much has changed since the previous discussion. The main impact for the area will be strong to severe thunderstorms. The first line is expected to push in and affect the area as early as midnight to 1am Thursday before coming to an end around 6am. The second line looks to begin affecting the Alpharetta area as early as 8-9am with thunderstorms affecting the area through early afternoon (1-2pm). The main threats at this time continue to be damaging wind gusts, large hail and the potential to see a few tornadoes. Some uncertainty remains with the afternoon and evening line of showers and thunderstorms but current thinking is that scattered showers and thunderstorms will pop up in the afternoon and early evening before another line moves through overnight on Thursday into Friday morning. Breezy northwest winds (8-13 MPH with gusts nearing 22MPH) will follow with the passage of the cold front in the afternoon following the secondary line Thursday. Gusty, erratic winds may accompany thunderstorms that occur in the area. .THURSDAY... Sky/weather.........Mostly cloudy (65-75 percent). Showers in the morning. Chance of thunderstorms through the day. Showers likely in the afternoon. Chance of pcpn......80 percent. Max temperature.....Around 83. Min humidity........63 percent. Heat index..........84. Wind chill..........MISSING. Surface winds (mph).West winds 10 to 14 mph shifting to the around 13 mph late in the afternoon. Rainfall amount.....0.89 inches. CEILING (KFT).......1.2 decreasing to 0.9 early in the morning, then decreasing to 0.7 late in the morning increasing to 0.8 late in the morning increasing to 0.9 increasing to 1.2 early in the afternoon increasing to 2.5 increasing to 5.0 late in the afternoon. TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky (%).........71 80 82 80 77 76 81 62 61 57 57 57 Weather cov.....LKY LKY LKY LKY DEF DEF LKY LKY CHC CHC CHC CHC Weather type....RW RW RW RW RW RW RW RW RW RW RW RW Tstm cov........CHC CHC SCH SCH SCH CHC CHC CHC CHC CHC CHC CHC Chc of pcpn (%).60 60 70 70 80 80 70 60 50 50 40 30 Temp............68 68 69 69 71 73 75 76 77 80 81 81 RH..............97 97 95 97 91 86 83 80 74 70 67 67 Heat index (F)..68 68 69 69 71 73 75 76 77 80 84 83 Wind chill (F)..M M M M M M M M M M M M Surface wnd dir.S S SW SW SW SW SW SW SW W W W Surface wnd spd.10 10 10 12 12 12 13 13 14 14 14 13 Surface wnd gst.16 17 16 17 18 18 18 20 20 21 21 20 Ceiling (kft)...1.5 1.2 0.9 0.7 0.8 0.9 1.2 1.2 1.5 1.5 2.5 5.0 .THURSDAY NIGHT... Sky/weather.........Mostly cloudy (50-60 percent) then becoming partly cloudy (25-35 percent). Chance of showers and thunderstorms. Chance of pcpn......40 percent. Min temperature.....Around 63. Max humidity........99 percent. Heat index..........85. Wind chill..........MISSING. Surface winds (mph).West winds 7 to 12 mph. Rainfall amount.....0.13 inches. CEILING (KFT).......12 increasing to 20 early in the evening, then increasing to 25 early in the evening decreasing to 20 late in the evening decreasing to 12 decreasing to 7.0 late in the evening increasing to 12 increasing to 20 overnight increasing to 25 decreasing to 20 after 3 am decreasing to 15 decreasing to 9.0 early in the morning. TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM Sky (%).........57 13 32 32 32 32 32 36 41 43 48 50 Weather cov.....SCH SCH CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC Weather type....RW RW RW RW RW RW RW RW RW RW RW RW Tstm cov........SCH SCH CHC CHC CHC CHC CHC CHC SCH SCH SCH CHC Chc of pcpn (%).20 20 30 30 30 30 30 30 40 40 40 40 Temp............82 80 78 74 73 72 70 70 69 68 67 65 RH..............63 68 70 82 87 89 93 93 91 91 92 94 Heat index (F)..85 80 78 74 73 72 70 70 69 68 67 65 Wind chill (F)..M M M M M M M M M M M M Surface wnd dir.W W W W SW SW SW W W W W W Surface wnd spd.12 10 9 7 7 8 8 8 7 7 7 7 Surface wnd gst.18 15 13 12 10 12 13 12 10 10 10 10 Ceiling (kft)...12 20 25 20 12 7.0 12 20 25 20 15 9.0 $$ Forecaster...Hernandez Requested by...CAPT. WHEELER Type of request...OTHER .TAG 2413463.0/FFC .DELDT 05/08/24 .FormatterVersion 2.0.0 .EMAIL AWHEELER@ALPHARETTA.GA.US