


Area Forecast Discussion
Issued by NWS Wilmington, OH
Issued by NWS Wilmington, OH
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
39
40
41
42
43
44
45
46
47
48
49
50
052 FXUS61 KILN 031800 AFDILN Area Forecast Discussion National Weather Service Wilmington OH 200 PM EDT Thu Apr 3 2025 .SYNOPSIS... Waves of low pressure will result in more rounds of showers and storms, bringing the prospects for heavy rain and potential flooding into the weekend. && .NEAR TERM /UNTIL 6 PM THIS EVENING/... Morning update... Only change to the near term forecast was to remove all mention of thunderstorms for the next few hours given current radar trends and environment. Through the afternoon, thunderstorm activity moves in from the south, providing renewed chances for thunder. Otherwise, maintained the highest PoPs in the far south and southeast with continued light to moderate rain. Previous discussion... A cold front will move southeast across the area today. Showers and embedded storms over our southeast CWFA early this morning will taper by mid morning, with not much expected with the cold front itself during this period. The approach of a s/wv in the southwest flow aloft will increase low level convergence and another LLJ will allow shower and thunderstorm development this afternoon, first across the south, then spreading north. Meanwhile the surface boundary itself will settle south of the Ohio River. Believe severe chances in our far south will be low given that the boundary slips south of the Ohio River with cooler weather allowing for lower instability. Highs will range from the upper 60s to the lower 70s. && .SHORT TERM /6 PM THIS EVENING THROUGH 6 PM FRIDAY/... A Flood Watch will remain in effect for the entire region into the weekend, at least into Sunday morning. Deep moist flow from the southwest will interactive with embedded s/wvs and low level jets to result in several rounds of rainfall which could be heavy, resulting in flooding. For tonight, showers and storms will increase in coverage across the region as a low level jet and its associated convergence bring additional rainfall. It will actually somewhat cool, especially north, as the low level flow will veer from the northeast. Lows will range from the mid 40s north to the mid 50s south. On Friday, showers and storms will continue as the aforementioned boundary moves slowly north to the Ohio River. Highs will range from the upper 50s north to the lower 70s south. && .LONG TERM /FRIDAY NIGHT THROUGH THURSDAY/... For Friday night into Saturday, wet weather will persist with high chances for showers and storms. There will be the threat for some strong to severe storms as a wave of low pressure passes by to the northeast, allowing another cold front to push southeast into the region. A stronger mid level trough is then poised to dig east/southeast into the Great Lakes and Ohio Valley Saturday night into Sunday. The Saturday into the Saturday night timeframe may be the period with the overall heaviest widespread rainfall given the strongest dynamics interacting with the moist airmass. The cold front will move southeast on Sunday, allowing the rain to shift off to the southeast. Much colder air will arrive by Sunday. Temperatures will range from the mid 60s northwest to the lower 80s southeast on Saturday. A significant cool down can be expected by Sunday with not much recovery from morning lows. Highs will range from the mid 40s northwest to near 60 far southeast. A significant pattern change will develop through the later portions of the long term period as a deep upper level trough settles in across the Great Lakes region. This will lead to unseasonably cool temperatures and some lower end chances for showers (maybe even some snow mixed in) Monday through Wednesday. && .AVIATION /18Z THURSDAY THROUGH TUESDAY/... Periods of rain with MVFR/IFR CIGs and MVFR VIS are the main themes this TAF period as a cold front slowly drops south of the area. The amount of thunder continues to be of low confidence so kept all mentions for thunder within the PROB30 category. Even with breaks in the rain, CIGs and VIS restrictions remain likely through the rest of the TAF. Wind directions are a bit different across the area this afternoon as the front slowly drifts south. Eventually, winds behind the front become more northeasterly for Friday. OUTLOOK...Periods of showers and thunderstorms will occur into Sunday morning. This will result in MVFR/IFR conditions from time to time. && .ILN WATCHES/WARNINGS/ADVISORIES... OH...Flood Watch through Sunday morning for OHZ026-034-035-042>046- 051>056-060>065-070>074-077>082-088. KY...Flood Watch through Sunday morning for KYZ089>100. IN...Flood Watch through Sunday morning for INZ050-058-059-066-073>075- 080. && $$ SYNOPSIS...Hickman NEAR TERM...Hickman/McGinnis SHORT TERM...Hickman LONG TERM...Hickman AVIATION...McGinnis