


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
47
48
49
50
747 FXUS61 KCLE 111955 AFDCLE Area Forecast Discussion National Weather Service Cleveland OH 355 PM EDT Sat Oct 11 2025 .SYNOPSIS... Surface low pressure dissolves tonight with high pressure building from the northeast for Sunday into early next week. Mainly dry most through midweek. && .NEAR TERM /THROUGH SUNDAY NIGHT/... A vertically stacked low pressure system will continue its southeastward drift into New York State this evening and tonight. This system is characteristic of patchy low level moisture and dry air above 750mb with also an inverted V signature in the boundary layer. There is just enough layer RH at times for forced shower activity, generally closer to the central area of low pressure. But overall, POPs on the meager side or the far eastern zones largely relegated to NW PA this evening and tonight. Patchy sprinkles not out of the question further west, but will leave POPs out for now over Lake Erie and along the lakeshore east of the islands. At the same time, an expansive coastal low pressure system moving northward will be slinging moisture into PA tonight into Sunday, keeping POPs along the far eastern border of the CWA into early Sunday. Low/mid level moisture will get pushed back westward from the coastal low and its counterclockwise circulation with a weak inverted surface trough in the vicinity of the lakeshore. Going to downplay the POPs here as well, but slights may need to come into play for Sunday in the next forecast as there will be some vertical cloud development evident during the afternoon hours, lingering into the Sunday night time frame. Again, the general story here ultimately is not much precipitation expected out of this for the next 36 hours. Slightly above normal temperatures Sunday with upper 60s to lower 70s. && .SHORT TERM /MONDAY THROUGH TUESDAY NIGHT/... The coastal low pressure system will linger off the mid Atlantic coast while high pressure builds in from the northeast and upper level ridging builds in from the Texas Gulf Coast. An upper level low all the way north in southern Hudson Bay tracking west to east will bring a cold front through the region Tuesday. Despite the distance from the main energy of this system, this cold front should sweep through fairly easily, fairly dry, and with an airmass changing high pressure system building in its wake. Upper 60s to mid 70s Monday and Tuesday become upper 50s to lower 60s Wednesday. && .LONG TERM /WEDNESDAY THROUGH SATURDAY/... The Canadian high pressure system will slowly shift eastward into the end of the week, allowing for return flow, upper level ridging once again, and a warm up heading into the weekend. Temperatures back to slightly above normal values by Saturday. No significant precipitation expected in the extended forecast. && .AVIATION /18Z Saturday THROUGH Thursday/... In the mid/upper-levels, cyclonic NW`erly to N`erly flow persists over our region as a low near CYYZ at 17:20Z/Sat drifts ESE`ward to near KROC by 18Z/Sun. At the surface, a trough lingers over the eastern Great Lakes region and Upper OH Valley through 18Z/Sun and the embedded low dissipates over southern ON by 00Z/Sun. Our regional surface winds vary between NW`erly and NE`erly around 5 to 10 knots through ~00Z/Sun. Thereafter, winds are expected to become light and variable for a time. On Sunday morning, winds should become NE`erly to SE`erly around 5 to 10 knots, especially after 12Z, and persist through 18Z/Sun. Odds favor VFR and dry weather through the TAF period. Scattered diurnal cumuliform clouds and scattered lake-effect stratocumuli downwind of Lake Erie affect northern OH and NW PA through ~23Z/Sat. Additional isolated to scattered diurnal cumuliform clouds are expected after ~14Z/Sun. All of these cumuliform clouds should have bases near 4kft AGL. Outlook...Current odds favor dry weather and VFR through this Thursday. && .MARINE... Variable winds around 5 to 10 knots today become mainly NE`erly to E`erly around 5 to 15 knots tonight as a residual trough lingers over Lake Erie and extends from a deepening coastal low that should continue to wobble NNE`ward offshore the Carolinas. Waves of 3 feet or less are expected. On Sunday through Monday, a ridge should extend from the Canadian Maritimes to Lake Erie. NE`erly to ESE`erly winds freshen to around 10 to 20 knots on Sunday through much of Sunday evening as the aforementioned ridge interacts with the potent coastal low that should move farther NNE`ward to Atlantic waters east of the Delmarva Peninsula and well south of Long Island. Waves build to as large as 3 to 6 feet in open U.S. waters, but remain 3 feet or less in nearshore U.S. waters given forecast fetch. Late Sunday evening through nightfall Monday evening, mainly NE`erly to E`erly winds should ease to around 5 to 15 knots as the aforementioned ridge weakens while moving little, and the aforementioned coastal low moves little and begins to weaken notably. Waves subside to 3 feet or less by daybreak Monday. NE`erly to E`erly winds around 5 to 15 knots should back to N`erly to NW`erly over Lake Erie Monday night. Simultaneously, a reinforcing ridge should build from the Canadian Prairies as the coastal low drifts generally E`ward over the Atlantic and becomes located farther offshore the Delmarva Peninsula. Waves remain 3 feet or less. On Tuesday through this Thursday, winds should vary between NW`erly and NE`erly as the reinforcing ridge continues to affect Lake Erie and the core of the ridge moves from the Canadian Prairies toward James Bay and vicinity. These winds will be mainly 5 to 15 knots in magnitude, but should flirt with 20 knots at times Tuesday night through Wednesday night. Waves are forecast to be mainly 3 feet or less, but should be as large as 4 to 5 feet at times Tuesday night through Wednesday night, especially east of The Islands. Forecast trends will be monitored for the potential need of a Small Craft Advisory. && .CLE WATCHES/WARNINGS/ADVISORIES... OH...None. PA...None. MARINE...None. && $$ SYNOPSIS...26 NEAR TERM...26 SHORT TERM...26 LONG TERM...26 AVIATION...Jaszka MARINE...Jaszka