Area Forecast Discussion
Issued by NWS Paducah, KY
Issued by NWS Paducah, KY
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
37
38
249 FXUS63 KPAH 141842 AFDPAH Area Forecast Discussion National Weather Service Paducah KY 142 PM CDT Tue May 14 2024 .KEY MESSAGES... - Showers and thunderstorms continue today; can`t rule out a severe storm this afternoon. - Some lingering showers continue tonight into Wednesday, and then another system spreads additional showers and storms into the region Thursday through Friday. - Uncertainty exists regarding precip chances this weekend, but it is trending drier. - Temperatures will start off near to slightly below normal the next couple of days, then warm above normal this weekend as highs reach the mid 80s. && .DISCUSSION... Issued at 115 PM CDT Tue May 14 2024 Thunderstorms are growing a little stronger and better organized over Livingston County and vicinity. A few breaks in the overcast have allowed for better surface heating and about 800-1000 J/kg of MLCAPE is forming up across the area. Similar instability is forming ahead of a broken line of showers across SEMO. With modest deep layer shear but just a little directional low level shear invof the surface low will have to monitor for a stray severe storm or two this afternoon. Antecedent soil conditions will also make at least a few areas primed for flash flooding if they happen to get storms once again this afternoon. Mainly a corridor from about Evansville to Cairo, IL that saw repeated activity through the midday hours Tuesday. Wednesday looks a little drier although some wraparound showers and clouds appear possible in the eastern half of the CWA. Friday a quick moving shortwave moves overhead. GFS/NAM have us in a little more large scale ascent zone of the upper jet Friday where the ECMWF is a little flatter with the wave. Rain and thunderstorms look quite likely. The shear environment will be more favorable than today, and instability may be slightly larger. That will be the main ticket to any severe potential Friday is if we end up with slightly more than currently advertised MLCAPE a more organized severe threat may result. Heavy rainfall will be a watch item as well with the increasingly wet soil conditions and fairly deep column moisture. A front moves through behind this system and looks to mostly dry us out for the weekend. By Saturday highs look to climb back into the middle 80s. 12z deterministic and ensemble members are still in very poor agreement on the details, but the broader moisture return, trough positioning and climatology would suggest it be monitored for severe weather and heavy rain potential as well. && .AVIATION /18Z TAFS THROUGH 18Z WEDNESDAY/... Issued at 1221 PM CDT Tue May 14 2024 Low pressure centered over the area will continue to produce variable, but prevailing IFR/Low MVFR conditions with showers and scattered thunderstorms popping up through the rest of the day. Activity should wane after sunset but we should be fairly well setup for fog or IFR ceilings late overnight. I would probably tend to bet more towards light winds and fog but some sort of degraded flying conditions appear likely either way. && .PAH WATCHES/WARNINGS/ADVISORIES... IL...None. MO...None. IN...None. KY...None. && $$ DISCUSSION...JGG AVIATION...JGG