Area Forecast Discussion
Issued by NWS Cleveland, OH
Issued by NWS Cleveland, 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
663 FXUS61 KCLE 251802 AFDCLE Area Forecast Discussion National Weather Service Cleveland OH 202 PM EDT Tue Aug 25 2026 .WHAT HAS CHANGED... No significant changes to the previous forecast. && .KEY MESSAGES... 1) Showers and thunderstorms will develop ahead of a cold front on Wednesday, and again on Thursday afternoon. A few strong to severe storms are possible, mainly across Northwest Ohio Wednesday afternoon and evening. 2) Temperatures will trend warmer by the end of the weekend into early next week with increasing shower and thunderstorm chances. && .DISCUSSION... KEY MESSAGE 1... A mid-level shortwave (25-30 knots of WSW 700 mb flow) will traverse the base of an upper-level trough Wednesday into Thursday across the Great Lakes as a cold front sweeps east through the area on Thursday. Showers and thunderstorms will develop ahead of the front Wednesday afternoon and evening, primarily impacting portions of Northwest Ohio along the I-75 corridor, and again Thursday afternoon, generally east of the I-77 corridor. The greatest threat for organized thunderstorms on Wednesday will be west of the area across portions of north-central Indiana, though depending on the eastward extent of the instability gradient, a few of our counties along the I-75 corridor across Northwest Ohio could see some strong to severe storms as well, generally between 6 and 10 PM. Damaging wind gusts up to 60 mph appear to be the primary concern, though large hail up to 1 inch and a brief tornado also cannot be ruled out. Showers and thunderstorms should largely diminish overnight as the shortwave swings east through the Ohio Valley, though redevelopment is possible again Thursday afternoon with the aid of diurnal heating, mainly east of the I-77 corridor. The latest guidance suggests a decreasing risk for strong to severe storms Thursday afternoon as the greatest coverage of storms continues to trend further east of the area into Pennsylvania and Southeast Ohio. KEY MESSAGE 2.. After a brief stint of drier and seasonable weather, a large upper-level ridge will enter the region towards the end of the weekend into early next week with increasing temperatures and humidity. Highs will reach above average in the mid to upper 80s on Sunday, potentially touching 90 in some spots by Monday. In addition, we`ll also have to continue to monitor the potential for showers and thunderstorms, especially Monday night through Tuesday as an upper-level trough swings east through the Upper Great Lakes. && .AVIATION /18Z Tuesday THROUGH Sunday/... Scattered to broken cumulus cloud deck in place across northeast Ohio will trend towards scattered for this afternoon. High pressure will be overhead tonight and can not rule out MVFR visibilities at CAK and YNG late tonight in the 09-13Z window. Added a couple hour tempo towards sunrise and will need to monitor for brief IFR conditions. Otherwise, the weather will remain quiet through the TAF period before a front and the potential for thunderstorms arrive later in the day on Wednesday. North to northwest winds at NE Ohio and NW Pennsylvania terminals will transition to a light land breeze with southerly winds after 00Z tonight. South to southwest winds of 5-10 knots will develop at all terminals on Wednesday ahead of an approaching front. Outlook...Non-VFR possible in scattered showers and thunderstorms Wednesday night into Thursday. && .MARINE... High pressure overhead will result in lake breezes on Lake Erie today, especially east of the Lake Erie Islands. Land breezes will return tonight with south to southwest winds on Wednesday ahead of a cold front. Winds increase to 10-20 knots ahead of the front on Wednesday night with waves of 2 to 4 feet in the open waters. Scattered thunderstorms may also accompany the front from Wednesday evening through Thursday morning and may result in erratic wind/wave conditions. Winds shift to the north behind the front on Thursday night at 10-15 knots but are expected to remain below Small Craft Advisory criteria as winds decrease quickly into Friday. && .CLE WATCHES/WARNINGS/ADVISORIES... OH...None. PA...None. MARINE...None. && $$ DISCUSSION...Kahn AVIATION...10 MARINE...10