Mountain View snow report

677 FXUS61 KCLE 130555 AFDCLE Area Forecast Discussion National Weather Service Cleveland OH 155 AM EDT Sat Jun 13 2026 .WHAT HAS CHANGED... No major changes to the forecast. && .KEY MESSAGES... 1) Widespread showers and thunderstorms expected on Sunday as a cold front pushes east across the area. Some storms may be severe along and east of I71. 2) A cool down is on the horizon with near normal temperatures returning Sunday and persisting into next week. 3) An active weather pattern sticks around through next week, resulting in the potential for multiple rounds of rain and storms. && .DISCUSSION... KEY MESSAGE 1... A weak high pressure will drift east late today as a broad upper level trough begins to dig south from Canada. Along the fringes of this trough, multiple shortwaves are expected to move along it. The first of the disturbances is expected to move east on Sunday, dragging an associated cold front across the area. Given increased southwesterly flow ahead of the boundary, a brief period of WAA and increased moisture advection will allow for support for shower and thunderstorm development on Sunday. In addition, a LLJ is expected to nudge north Sunday afternoon in conjunction with mid-level energy. This should provide additional support for storm development, especially across the eastern portion of the CWA. There remains quite a bit of divergence amongst models in handling the Sunday afternoon convection as much of the forecast hinders on whether or not the warm sector of the low is able to destabilize enough to enhance area convection or if the timing of the boundary inhibits some of that destabilization. If the boundary slows at all, confidence will increase in storms becoming severe as diurnal heating will aid in increased instability. Given the atmospheric setup, any convection that does develop should primarily be in a linear fashion with the strong winds the primary concern, but quick spin up or two cannot be ruled out. Though current confidence is fairly low in the severe potential and hinders on the timing of the boundary, there is high confidence in thunderstorms pushing east throughout the day, gradually drying from west to east late Sunday. Will have to continue to monitor the evolution of the boundary in coming model runs, but to highlight the potential risk at this point, SPC has put portions of the Mahoning Valley in a Day 2 Slight Risk with a Marginal Risk extending as far west at the I71 corridor. If the boundary begins to slow, would not be surprised if the slight is shifted even further west. KEY MESSAGE 2... As the aforementioned robust cold front pushes east on Sunday, a much cooler airmass will push in behind it, allowing for below to near normal temperatures to return for much of next week. Initially on Sunday, high temperatures will be limited given widespread precipitation expected with highs only expected to climb into the mid 70s. Overnight lows on Sunday will be much cooler as temperatures fall into the upper 40s in NW PA and the low to mid 50s elsewhere. Temperatures through Tuesday will be comparable before slowing warming back into the 80s beginning on Wednesday through the end of the week. .KEY MESSAGE 3... An active pattern is expected to continue through much of next week as a broad upper level trough with multiple embedded shortwaves slowly meanders east. This set up will present multiple chances of showers and thunderstorms throughout the week, supported by mid- level energy and increased moisture due to persistent southwest flow east of the trough axis. The first shortwave will push across the area on Tuesday, resulting in showers. On Thursday, a more robust surface low pressure support by a shortwave looks to move into the area, pushing a strong cold front east. On both days there is the potential for widespread showers and thunderstorms and will have to keep an eye on them in future model runs to discern any severe potential associated with them. && .AVIATION /06Z Saturday THROUGH Wednesday/... VFR is expected through the 06Z Sunday as high pressure maintains influence over the region. Winds will be light and out of the west/southwest tonight into this morning before increasing to 6 to 12 knots this afternoon. Gusts to 20 knots are likely at KTOL/KFDY during peak mixing this afternoon. Outlook...Non-VFR likely in showers and thunderstorms on Sunday. Non-VFR chances may return Tuesday afternoon and evening in scattered showers and thunderstorms with non-VFR more likely in more widespread showers and thunderstorms Wednesday into Thursday. && .MARINE... Southwest winds 6 to 12 knots are expected through today with winds increasing by a few knots overnight into early Sunday. A cold front will cross the lake on Sunday, allowing winds to shift to the northwest. A period of winds to 15 to 20 knots is likely in the western basin of Lake Erie Sunday afternoon/evening, but confidence in Small Craft Advisory conditions occurring is low at this point. Headlines may be needed if winds trend a bit higher. From there, Small Craft Advisories/Beach Hazards Statements may be needed as southwest flow deepens ahead of an approaching strong cold front Wednesday. NBM guidance suggests that winds could reach or exceed 30 knots on Thursday so will need to continue to monitor forecast trends in the upcoming days. && .CLE WATCHES/WARNINGS/ADVISORIES... OH...None. PA...None. MARINE...None. && $$ DISCUSSION...04 AVIATION...15 MARINE...15