Area Forecast Discussion
Issued by NWS Memphis, TN
Issued by NWS Memphis, TN
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744 FXUS64 KMEG 230448 AFDMEG Area Forecast Discussion National Weather Service Memphis TN 1148 PM CDT Wed May 22 2024 ...New AVIATION... .UPDATE... Issued at 901 PM CDT Wed May 22 2024 Skies are partly cloudy across the Mid-South this evening with temperatures ranging from the mid 60s to mid 70s. An area of showers and thunderstorms continue to move across portions of north Mississippi. Additional thunderstorms are expected to move into western sections of the Mid-South early Thursday morning. Have made some adjustments to PoPs for the overnight hours. && .SYNOPSIS... Issued at 359 PM CDT Wed May 22 2024 An unsettled period of weather will continue across the Mid-South tonight through next Tuesday. This will bring a potential for showers and thunderstorms each day across the Mid-South. Some of these thunderstorms have the potential to become strong to severe each day through at least Sunday night. Drier weather will begin to return by next Tuesday. && .DISCUSSION... (This evening through next Tuesday) Issued at 359 PM CDT Wed May 22 2024 An active afternoon across the Mid-South as a moderate to strong instability combined with 40-50 kts shear, and favorable upper- level divergence to produce severe thunderstorms and heavy rainfall across the Mid-South. Latest surface analysis places a surface low near Duluth, MN with a cold front extending south into Indiana, the Missouri Bootheel, and back into Western Arkansas and the Red River Valley. As of 3 PM CDT, temperatures are in the upper 70s to lower 80s even where convective activity has occurred over the past 2 to 3 hours. Short-term models including the latest CAMs indicate the potential for strong to severe thunderstorms to continue across portions of the Mid-South, mainly for areas in West Tennessee near the Tennessee River and most of north Mississippi except for areas along and east of a line from Tutwiler to Aberdeen, Ms. Otherwise, there may be a bit of a minimum in convective coverage this evening as the MCS departs. Subtle shortwave troughs embedded in nearly zonal flow aloft will move across the Lower Mississippi Valley into the upcoming Memorial Day weekend. Moderate to strong instability combined with 0-6 km Bulk Shear values between 30-40 kts suggest the potential for strong to severe thunderstorms Thursday especially during peak heating and again during the day on Friday. Damaging winds and large hail will remain the primary severe weather threats along with a potential for heavy rainfall. Long-term model trends suggest the potential for a better threat of severe thunderstorms Sunday afternoon into Sunday night as a stronger mid-level trough moves through the region. High pressure will bring a gradual end to rain chances on Tuesday. CJC && .AVIATION... (06Z TAFS) Issued at 1142 PM CDT Wed May 22 2024 Mainly VFR conditions will persist through the overnight hours. SHRAs and TSRAs may develop near JBR and MEM around daybreak and spread east through late morning to MKL and TUP. Confidence on coverage and timing is low as Hi-res guidance has a lot of spread between models. Nonetheless, stayed close to hi-res ensemble guidance to draft the TAFs. By late afternoon, skies should clear as convection lifts out of the area. Winds will remain from the south and southwest through much of the period. AC3 && .MEG WATCHES/WARNINGS/ADVISORIES... AR...None. MO...None. MS...None. TN...None. && $$ PUBLIC FORECAST...CJC AVIATION...AC3