169 FXUS61 KCLE 080524 AFDCLEArea Forecast Discussion National Weather Service Cleveland OH 124 AM EDT Mon Sep 8 2025
.SYNOPSIS... High pressure will enter the region today and move east into New England for Tuesday and Wednesday. A cold front will move through the area on Wednesday night. High pressure will build from the north for the end of the week.
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.NEAR TERM /THROUGH TUESDAY/... A weak trough remains over Lake Erie this morning with cold advection aloft. Some clouds have developed along this feature, but some showers may develop in the pre-dawn hours and may drift into NE OH and NW PA this morning. Have some 20% PoPs to reflect some rain chances this AM. Otherwise, temperatures early this morning have cooled off quickly and adjusted temperatures down to have some upper 30s in NE OH/NW PA.
High pressure will build into the region today and backing flow will allow for any lake effect clouds or rain to stop with some warmer return flow entering by this afternoon. Temperatures this afternoon will still remain on the cooler side of normal with 60s and 70s. With clear conditions and calm winds tonight under high pressure, the atmosphere will decouple and temperatures for tonight will plummet into the 30s and 40s like this morning and frost potential will miss the area just off to the east in PA/NY. High pressure will be to the east of the area on Tuesday and dry weather will continue. Warmer return flow will allow for highs to be back toward normal in the 70s on Tuesday.
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.SHORT TERM /TUESDAY NIGHT THROUGH THURSDAY NIGHT/... High pressure will continue to influence the region for the short term forecast period. A cold front will pass through the area on Wednesday night but will be a dry passage with a lack of moisture in the region and only a marginally cooler air mass that will not generate any lake effect clouds or rain. High pressure will build from the north behind this feature and retain the dry weather through Thursday. Temperatures through the period will be seasonable.
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.LONG TERM /FRIDAY THROUGH SUNDAY/... High pressure north of the area will allow for dry weather to start the weekend. This surface high will shift east for Saturday into the New England states. For Sunday, a low pressure system and cold front may approach the region to give the next chance for rain; however, there is potential for this system to just miss the area entirely to the northeast and more dry weather will continue over the lake. Will have some slight chance PoPs for Sunday. Temperatures through the period remain seasonable.
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.AVIATION /06Z Monday THROUGH Friday/... WNW`erly flow aloft resides over our region as a ridge builds slowly from the north-central United States and eventually the western Great Lakes through 06Z/Tues. Simultaneously and at the surface, the ridge continues to affect our region as the embedded high pressure center moves from the southwestern Great Lakes toward northern New England. A weak MSLP gradient accompanying the ridge will allow our regional surface winds to be primarily calm or variable in direction and around 5 knots in magnitude. However, a SE`erly to S`erly land breeze around 5 knots is expected along and very near Lake Erie through ~14Z/Mon and after ~02Z/Tues, including at KCLE and KERI. In addition, a a NW`erly to NE`erly lake breeze around 5 knots should impact the same areas between ~17Z/Mon and ~23Z/Mon.
Mainly VFR and clear or mainly clear sky are expected through the TAF period. However, scattered to broken lake-effect cumuliform clouds with bases near 3kft to 5kft AGL should stream generally ESE`ward or SE`ward from Lake Erie through ~14Z/Mon and impact portions of NE OH and NW PA, including KCLE, KYNG, and KERI. These lake-effect clouds may produce light rain showers through ~10Z/Mon and the showers may yield brief visibility reductions to MVFR. Localized radiation mist with MVFR visibility is possible from ~08Z/Mon until ~12Z/Mon in interior portions of NE OH and NW PA, including at and near KYNG. Lastly, scattered cumuli with bases near 5kft AGL will likely develop via daytime heating over northern OH and NW PA between ~15Z/Mon and ~23Z/Mon, outside of the expected lake breeze.
Outlook...Current odds favor widespread VFR this Tuesday through Friday.
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.MARINE... An expansive area of high pressure will build across the Great Lakes region before gliding east of Lake Erie on Tuesday. The high will continue to influence the eastern Great Lakes as it remains in the vicinity of the region through this week. Northwesterly winds 10-15 knots this afternoon and evening will diminish to 5-10 knots as the high builds overhead. Winds will remain northerly on Monday before flow turns offshore Monday night as the high builds eastward. A cold front moves south across the lake Wednesday into Thursday with northeast flow favored Thursday and Friday.
A weak surface trough will linger across Lake Erie through early Monday morning. This will keep conditions favorable for waterspouts in any lake effect rain shower that develops tonight into early Monday morning.
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.CLE WATCHES/WARNINGS/ADVISORIES... OH...None. PA...None. MARINE...None.
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SYNOPSIS...Sefcovic NEAR TERM...Sefcovic SHORT TERM...Sefcovic LONG TERM...Sefcovic AVIATION...Jaszka MARINE...13
NWS CLE Office Area Forecast Discussion