Area Forecast Discussion
Issued by NWS Memphis, TN
Issued by NWS Memphis, TN
175 FXUS64 KMEG 110000 AFDMEG Area Forecast Discussion National Weather Service Memphis TN 700 PM CDT Thu Sep 10 2026 ...New AVIATION... .KEY MESSAGES... Issued at 659 PM CDT Thu Sep 10 2026 - A cold front will bring scattered rain chances to a large part of the Mid-South through early Saturday, offering some minor heat and drought relief. - Drier weather returns Sunday into next week as high pressure strengthens, maintaining dry and above-normal temperatures across the region. && .DISCUSSION... (This evening through next Wednesday) Issued at 122 PM CDT Thu Sep 10 2026 Surface analysis indicates weak low pressure over northeast Arkansas, with a boundary extending northeast toward Paducah, KY, and southwest into the ArkLaTex. Isolated showers and thunderstorms persist near this feature. Water vapor imagery shows broad zonal flow across the Southeast, anchored by a weak upper-level trough over the Southern Plains. Modest height falls interacting with moderate instability (MLCAPE ~2000 J/kg) and ~25 kt bulk shear will support multicell clusters through early evening, capable of producing 30-50 mph wind gusts. Gust potential will diminish post-sunset as instability wanes and low-level capping develops. Training convective cells remain a secondary concern overnight as upper-level flow runs parallel to the stalling frontal boundary near I-40, though confidence in localized flooding remains low. The upper trough will slowly cross the Mid-South through Friday, lowering 500mb heights to ~586 dam. Debris cloudiness and a positively tilted trough axis will limit severe organization, but scattered diurnally enhanced convection (40-60% PoPs) is expected. Increased cloud cover and convective outflow will hold high temperatures down, keeping heat indices in the mid-to-upper 90s. Excessive heat returns Sunday through mid-week as a strong ~594 dam ridge expands eastward. High confidence in LREF ensemble guidance points to building heat headlines and worsening drought conditions across the region. AC3 && .AVIATION... (00Z TAFS) Issued at 659 PM CDT Thu Sep 10 2026 A weak cold front and associated outflow boundaries will result in isolated to scattered TSRAs/SHRAs along and north of I-40 this evening, gradually dissipating overnight with loss of heating. There is a good chance of MVFR cigs at JBR early Friday morning, north of the front. SHRAs/TSRAs will re-develop Friday afternoon, mainly along and east of the MS River. Winds will be mostly light outside of TSRAs and generally NE to the north of the front (JBR), variable along the front (MEM, MKL), and light southerly to the south of the front (TUP). && .FIRE WEATHER... Issued at 122 PM CDT Thu Sep 10 2026 A front will cross the region Friday into Saturday, bringing higher relative humidity (above 40%), a shift to northerly winds, and scattered wetting rain chances. Strong high pressure will return on Sunday and bring high heat and dry conditions back to the region through the middle part of next week. && .MEG WATCHES/WARNINGS/ADVISORIES... AR...None. MO...None. MS...None. TN...None. && $$ PUBLIC FORECAST...AC3 AVIATION...SJM