Area Forecast Discussion
Issued by NWS Memphis, TN
Issued by NWS Memphis, TN
Versions:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
766 FXUS64 KMEG 171732 AFDMEG Area Forecast Discussion National Weather Service Memphis TN 1132 AM CST Mon Nov 17 2025 ...New DISCUSSION, AVIATION, FIRE WEATHER... .KEY MESSAGES... Issued at 1130 AM CST Mon Nov 17 2025 - Above-normal temperatures will continue through the week. - Wet and unsettled weather, including periods of showers and thunderstorms, will return this week, with the potential for 1 to 3 inches of total rainfall. Most rain will fall after midweek. - Cooler conditions are anticipated next weekend with highs in the 60s. && .DISCUSSION... (This afternoon through next Sunday) Issued at 1130 AM CST Mon Nov 17 2025 Cooler conditions have arrived in the Midsouth behind a weak cold front that is currently located along the Gulf Coast. High temperatures this afternoon will be in the middle 60s to low 70s. A few echoes are showing up on radar over east Arkansas, but with dew-point depressions of 20 to 30 degrees it will take some time for any rainfall to make it to the ground. Additionally, weak instability and a capping inversion should limit the threat of any significant rain or thunderstorms this afternoon or early this evening. The front along the Gulf Coast will quickly return north as a warm front this evening and overnight, pushing north of the Midsouth before midday tomorrow. Return flow behind the front will usher in a moister and warmer airmass across the region and result in a higher chance of rainfall, along with the potential for a few thunderstorms. The chance for thunderstorms will increase toward sunrise tomorrow as a surface low tracks across central Missouri. Additionally, behind the warm front, winds will strengthen significantly. NBM probabilistic guidance shows a low to medium (10-40%) chance of wind gusts above 40 mph, with the highest chance north of Memphis oriented along the Mississippi River Valley. Strong WWA will result in near record high temperatures, around 80 degrees, in northeast Mississippi tomorrow afternoon. In the upper levels, a Colorado low and a weak trough will track from the Central Rockies into northern Illinois by Midday tomorrow. Meanwhile, a 40-45 kt LLJ oriented from northwest Arkansas into southern Illinois will help to provide lift, primarily across northern portions of the Midsouth. As these ingredients come together late tonight into early tomorrow, elevated thunderstorms could pose a minimal risk (less than 5%) for small hail. A transient ridge will limit the chance of rain and thunderstorms late Tuesday night into Wednesday and result in warmer temperatures across the Midsouth. Near record highs (around 80 degrees) are possible again across north Mississippi. NBM probabilistic output even shows about a 10% chance that portions of northeast Mississippi could reach 85 degrees Wednesday afternoon. While the chance of getting that warm is very low, record highs are only in the low 80s. After midweek, the ridge will shift east and a deepening cutoff low over the Desert Southwest will result in strengthening southwest flow from south Texas across the middle and lower Mississippi River Valley. Our highest rain chance over the next seven days looks to be late Thursday through late Friday. Generally 1.0 to 1.5 inches of rain is expected, highest in northeast Arkansas and the Missouri Bootheel. At this time the threat of severe storms looks low. Guidance varies a bit for next weekend, but in general trends toward a cooler and drier solution. Sirmon && .AVIATION... (18Z TAFS) Issued at 1130 AM CST Mon Nov 17 2025 Winds will remain the primary aviation weather impact over the next 30 hours, as low level pressure gradient responds to an approaching midlevel trough. Greatest TS chances will remain focused north of the Mid-South TAF sites. A southwesterly low level jet (FL020 winds) of 35-40KT and surface will provide a low end LLWS potential after 06Z. These elevated winds will veer 30-40 degrees from the surface, before mixing down after sunrise Tuesday. PWB && .FIRE WEATHER... Issued at 933 AM CST Mon Nov 17 2025 Minimum RH`s this afternoon will dip into the low to middle 20s in west Tennessee and northeast Mississippi. An increasingly wet and unsettled pattern will settle over the Mid-South this week. Fire weather concerns will be minimal through the period. && .MEG WATCHES/WARNINGS/ADVISORIES... AR...None. MO...None. MS...None. TN...None. && $$ PUBLIC FORECAST...JDS AVIATION...PWB