Area Forecast Discussion
Issued by NWS Memphis, TN
Issued by NWS Memphis, TN
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133 FXUS64 KMEG 171150 AFDMEG Area Forecast Discussion National Weather Service Memphis TN 650 AM CDT Fri May 17 2024 ...New AVIATION... .SYNOPSIS... Issued at 315 AM CDT Fri May 17 2024 A showery pattern with a few thunderstorms will continue today and Saturday along with mild temperatures. A warming trend and dry conditions will return Sunday and continue until Midweek. Highs Monday and Tuesday could approach 90 degrees. Our next chance of showers and thunderstorms will arrive Wednesday as another cold front approaches from the west. Highs after midweek are expected to be in the low to middle 80s. && .DISCUSSION... (Today through Thursday) Issued at 315 AM CDT Fri May 17 2024 An occluded front is currently located along a line from Union City, TN to Forest City Arkansas, into northeast Louisiana. This feature should push across the remainder of the Midsouth by Sunrise. Temperatures will be cooler today featuring highs in the middle 70s across most of the area. We will remain in southwest flow with an active 100-110kt subtropical jet stretching from south Texas, across the ArkLaTex, into Middle Tennessee. This pattern will not change much until a trough shifts across the Mississippi River Valley midday Saturday. As a result, periods of showers and thunderstorms will continue across the Midsouth. The threat of strong or severe storms should be minimal today and tomorrow although frequent lightning and locally heavy rainfall is common with any thunderstorms this time of year. Rainfall totals have trended a bit lower. Portions of northeast Arkansas, the Missouri Bootheel and northern portions of west Tennessee may see slightly over an inch of rain with one quarter to one half on an inch expected across the remainder of the Midsouth. A flood watch remains in effect for northeast Arkansas, the Missouri Bootheel and northern portions of west Tennessee through 7PM this evening. After the trough shifts east of the Tennessee River, Sunday into early next week, should be dry with warming temperatures. A fairly high amplitude ridge will shift across the region Sunday and Monday with its axis shifting across the middle Mississippi River Valley Monday night. This feature should keep us dry. However, the NBM, along with other numerical guidance, has backed off a bit on the widespread 90 degree temperatures early next week. As a result, we lowered temperatures back into the upper 80s across most of the area. A few 90 degree readings still look possible in north Mississippi. By midweek, a broad trough developing over the western half of the CONUS will put us back under weak southwest flow. High temperatures will cool back into the low to middle 80s with a return of at least scattered showers and thunderstorms. Confidence in the forecast Wednesday through Friday is low due to significant differences in guidance. However, the overall trend certainly looks cooler and wetter for the 2nd half of the work week. 30/Sirmon && .AVIATION... (12Z TAFS) Issued at 640 AM CDT Fri May 17 2024 Pretty grim aviation weather this TAF period. A few lingering showers and BR remain along several shortwaves through the morning. A brief lowering to IFR conditions looks to occur as this lingering precipitation moves through. Ceilings are then expected to lift to MVFR/VFR through the day. Vicinity showers are expected to return at MEM around 02Z before fog and reduced vsbys move over MEM. Calm winds and decent radiational cooling will result in fog this evening through around sunrise tomorrow at JBR/MKL/TUP. Fog looks to become more widespread around 08Z where vsbys look to drop to 2sm across all terminals. Ceilings are also expected to lower to IFR conditions with the movement of this fog tomorrow morning. AEH && .MEG WATCHES/WARNINGS/ADVISORIES... AR...Flood Watch through this evening for ARZ009-018. MO...Flood Watch through this evening for MOZ113-115. MS...None. TN...Flood Watch through this evening for TNZ001>004-019>022. && $$ PUBLIC FORECAST...JDS AVIATION...AEH