Area Forecast Discussion
Issued by NWS Wilmington, OH

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797 FXUS61 KILN 241908 AFDILN Area Forecast Discussion National Weather Service Wilmington OH 308 PM EDT Sun Sep 24 2017 .SYNOPSIS... An upper level ridge will remain over the region through mid week. This will bring dry and warm weather conditions to the region. Much cooler air will settle into the region by the end of the week. && .NEAR TERM /UNTIL 6 AM MONDAY MORNING/... H5 ridge will remain over the Appalachians tonight. Weak sly flow on the backside of the feature will allow some scattered high level clouds to drift into the region. Despite these clouds, still expect skies to be mostly clear tonight. For the overnight low, they should drop to the lower 60s in general. A couple of outlying locations could reach the upper 50s. && .SHORT TERM /6 AM MONDAY MORNING THROUGH 6 PM MONDAY/... On Monday H5 ridge weakens from the south, due to the presence of Hurricane Maria. This should allow for additional cirrus clouds to affect the region. There still should be enough solar insolation to push highs to around 90 again. The ridge, although weaker, will hold again Monday night. Lows will be a little warmer, ranging from 60 to 65. && .LONG TERM /MONDAY NIGHT THROUGH SATURDAY/... Warm and above normal temperatures will continue for Tuesday and Wednesday with high temperatures in the 80s to around 90. A cold front will work into the region on Wednesday. Moisture is very limited with this system and therefore limited any precipitation to a slight chance generally northwest of Interstate 71. There is some limited instability therefore have a thunder mention in as well. Any isolated precipitation will taper off by the evening hours. This front will usher in cooler air with highs in the 70s on Thursday. There are model differences with how strong the trough is on Friday. Most model solutions keep the area dry or limit precipitation to northern portions of the region. Went with a slight chance of showers generally along and north of Interstate 70. This will usher in another shot of cooler air with highs on Friday around 70 and highs Saturday and Sunday generally in the 60s. Some lingering showers will be possible on Saturday and therefore went with a slight chance across most of the region. && .AVIATION /19Z SUNDAY THROUGH FRIDAY/... Surface high pressure will remain over the tafs through the period. H3 moisture increases a little after 00Z this evening, which might bring in some addition cirrus, but kept them scattered through the end of the period. River valley fog has been gradually decreasing in coverage the past few days, and expect the trend to continue tonight. However, still took KLUK down to one mile in fog, just before sunrise. OUTLOOK...No significant weather expected. && .ILN WATCHES/WARNINGS/ADVISORIES... OH...None. KY...None. IN...None. && $$ SYNOPSIS...Haines/Sites NEAR TERM...Sites SHORT TERM...Sites LONG TERM... AVIATION...Sites is the U.S. government's official web portal to all federal, state and local government web resources and services.