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Area Forecast Discussion
Issued by NWS Wilmington, OH
Issued by NWS Wilmington, OH
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834 FXUS61 KILN 271758 AFDILN AREA FORECAST DISCUSSION National Weather Service Wilmington OH 158 PM EDT Thu Jun 27 2024 .SYNOPSIS... High pressure will build south and east into the Great Lakes and Ohio Valley today, bringing drier weather. The high will then move east of the area tonight and Friday. Moisture will return ahead of a cold front Friday night into Saturday. This will bring increasing chances for showers and thunderstorms along with humid conditions. High pressure is expected to build back into the region for Sunday and Monday, returning drier and cooler conditions. && .NEAR TERM /THROUGH FRIDAY/... High pressure overspreading the Great Lakes region will be the primary driver of our weather pattern today. Northerly flow across the region will usher in relatively drier air, leading to a slight reduction in humidity/dewpoint values. There will be plenty of sunshine, but cu development will continue through the rest of the morning and afternoon hours. Better cloud coverage expected along/north of I-70. Highs will reach the upper 70s to middle 80s across the CWA. && .SHORT TERM /FRIDAY NIGHT THROUGH 6 PM FRIDAY/... The center of the high will move east to the eastern Great Lakes tonight. Low level flow will gradually veer from the north, then to the northeast, then east. This will keep dry air in place. Other than some higher level clouds spilling in from the west, it should be mostly clear to partly cloudy. Lows will range from the mid 50s to the lower 60s. On Friday, the low level flow will become southerly as the high continues to push away to our east. This will not only bring an increase in dewpoints but air temperatures as well. Skies will be partly cloudy with an increase in clouds occurring late from the west as a mid level disturbance approaches. Highs will range from the mid 80s north to around 90 along and south of the Ohio River. && .LONG TERM /FRIDAY NIGHT THROUGH THURSDAY/... As high pressure shifts east Friday night, a mid level short wave may trigger a few showers and thunderstorms. Showers and thunderstorms become likely on Saturday in increasing moisture convergence and lift ahead of a cold front. Ample instability and wind shear should allow a few strong to severe storms. Saturday night and Sunday will feature decreasing chances for showers and storms as the front pushes east. High pressure settling across the Great Lakes is forecast to bring a stretch of dry weather Monday and Tuesday. The next cold front brings back the threat for showers and storms on Wednesday. Temperatures will be very warm to start the period, with highs Saturday in the mid 80s to low 90s. Some locations in the south may experience heat indices around 100. Temperatures will retreat behind the first cold front, with highs in the upper 70s to mid 80s Sunday, and the upper 70s to low 80s Monday. Heat returns for the remainder of the long term, with highs reaching the mid 80s to low 90s Tuesday, followed by low 90s in most locations on Wednesday. && .AVIATION /18Z THURSDAY THROUGH TUESDAY/... VFR conditions are expected throughout the entire TAF period with the exception of KLUK. River valley fog is possible tonight which could lead to minor visibility reductions at KLUK. As the high pressure shifts east low level and mid level clouds will remain sparse. The winds will shift from northerly to easterly throughout the evening, then transition to southerly winds throughout the night time hours. OUTLOOK...Thunderstorms possible Friday night into Saturday night. && .ILN WATCHES/WARNINGS/ADVISORIES... OH...None. KY...None. IN...None. && $$ SYNOPSIS...Hickman NEAR TERM...Clark SHORT TERM...Hickman LONG TERM...Coniglio AVIATION...Slabaugh