Area Forecast Discussion
Issued by NWS Memphis, TN
Issued by NWS Memphis, TN
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796 FXUS64 KMEG 051542 AFDMEG Area Forecast Discussion National Weather Service Memphis TN 1042 AM CDT Wed Jun 5 2024 ...New UPDATE... .UPDATE... Issued at 1024 AM CDT Wed Jun 5 2024 A MCV over Arkansas will push into the Mid-South this afternoon. The airmass will be moist and somewhat unstable with PWs over 1.5 inches and SBCAPES of 1000-1500 J/kg. However, wind shear is weak with 0-6km bulk shear values of less than 25 kts. Organized severe weather is unlikely. Expect scattered to numerous SHRAs and TSRAs to develop as surface heating continues. Brief locally heavy downpours are possible. Updated the forecast trim short term pops a bit due to recent trends. && .SYNOPSIS... Issued at 304 AM CDT Wed Jun 5 2024 One more day of showers and thunderstorms before the active weather pattern ends late tonight. Dry conditions return Thursday and less humid conditions return by Friday. The drier and cooler conditions will be interrupted Saturday as shower chances increase ahead of a cold frontal passage on Sunday. Dry conditions look to return by Monday evening with below normal temperatures. && .DISCUSSION... (Today through Tuesday) Issued at 304 AM CDT Wed Jun 5 2024 A shortwave trough is located almost parallel to the Tennessee River Valley as of 2 AM. A few showers are pushing into middle Tennessee as a result of this trough. Water vapor imagery depicts a shortwave ridge over east-central Arkansas ahead of an MCS in southern Oklahoma. This shortwave ridging should stabilize the Mid-South and any convective activity that reaches the region should remain sub-severe. Some thunderstorms may have some gusty winds and small hail associated with them this morning and afternoon. PWs are elevated again today at or above the 90th percentile (1.75-2.00"), flooding remains an area of concern today. The MCS will track southeast and an associated cold front will cross the area this evening. Behind the front, much drier air will begin to settle by Thursday morning. Clear skies and less humid conditions are on tap for Thursday with highs in the upper 80s and low 90s. Temperatures will cool slightly as Canadian high pressure builds in. Temperatures will hang slightly below or near normal conditions until Saturday. Shower and thunderstorm chances returns Saturday morning as a low pressure system ejects from the Plains. This system aims to track northeast towards the Great Lakes region and stretch a cold front across the Mid-South by Sunday. As the cold front approaches, a surge of moisture will return and dewpoints will creep back into the 70s on Sunday. Dry conditions look to return by Monday evening with below normal temperatures forecast through the middle of next week. DNM && .AVIATION... (12Z TAFS) Issued at 648 AM CDT Wed Jun 5 2024 Low confidence forecast for this TAF set wrt SHRA and TSRA timing and coverage. Mainly VFR conds will persist outside of SHRAs and TSRAs. A weak front will push through all TAF sites late tonight with a wind shift to the northwest. AC3 && .MEG WATCHES/WARNINGS/ADVISORIES... AR...None. MO...None. MS...None. TN...None. && $$ PUBLIC FORECAST...SJM AVIATION...AC3