748 FXUS64 KMEG 101120 AFDMEG Area Forecast Discussion National Weather Service Memphis TN 620 AM CDT Tue Jun 10 2025 ...New AVIATION... .KEY MESSAGES... Updated at 618 AM CDT Tue Jun 10 2025 - Dry and seasonal temperatures will prevail today and Wednesday. - Humidity and thunderstorm chances will return Thursday and continue into the weekend. At this time the chances for organized severe thunderstorm development is low. && .DISCUSSION... (Today through Monday) Issued at 448 AM CDT Tue Jun 10 2025 00Z upper air analysis showed a longwave trough over the eastern CONUS, downstream of a broad ridge over the western states. Under northwest flow aloft, slightly drier midcontinental surface high pressure had spread into the northern half of the Midsouth. Early morning surface dewpoints ranged from around 60F over northwest TN to the lower 70s over north MS. Weak winds and recent rainfall was resulting in patchy fog over parts of north MS where skies had cleared following overnight thunderstorms. Through the rest of today, drier air will make additional southward progress through the Midsouth. Highs will reach seasonal readings in the mid and upper 80s with the aid of strong June sunshine. The upper level pattern will deamplify by Wednesday, with a zonal polar jet across the northern CONUS and a southern branch cut-off low over the southern plains. Gulf moisture will fuel showers and thunderstorms over east TX and LA on Wednesday. By Thursday, 70s dewpoints will return to the Midsouth. Shortwave ridging downstream of the upper low may limit thunderstorm coverage and organization potential Thursday afternoon. Rain chances will increase Friday as the upper low lifts into the Ozarks, displacing the ridging to our east. But limited deep layer shear will continue to limit QPF and severe storms chances. Highs on Friday will be dependent on cloud cover and thunderstorm outflow. Otherwise, highs appear likely to reach 90F over most of the Midsouth Friday afternoon. Headed into the weekend, the upper low will stall over the Ohio River Valley, with a shear axis extending southwestward through the lower MS River Valley. Warm and humid conditions at the surface and the shear axis aloft will provide favorable conditions for scattered showers and thunderstorms through the weekend, particularly during the afternoon and early evening hours. PWB && .AVIATION... (12Z TAFS) Issued at 618 AM CDT Tue Jun 10 2025 Areas of dense fog continue to impact TUP this morning. Vsbys will improve over the next few hours. VFR CIGs will prevail with light northwest winds becoming light and variable overnight. ANS && .MEG WATCHES/WARNINGS/ADVISORIES... AR...None. MO...None. MS...Dense Fog Advisory until 9 AM CDT this morning for MSZ002>006- 008>017-020>024. TN...Dense Fog Advisory until 9 AM CDT this morning for TNZ053>055- 090>092. && $$ PUBLIC FORECAST...PWB AVIATION...ANS