textproduct: Wilmington

WHAT HAS CHANGED

Dense fog advisory remains in place early this morning. Light northeasterly winds will help to clear conditions over the next couple of hours.

KEY MESSAGES

1) Any dense fog occurring this morning lifts throughout the morning hours.

2) An extended period of dry weather begins today and continues through the middle of next week with temperatures generally within a few degrees of normal.

DISCUSSION

KEY MESSAGE 1) Mostly clear skies and light surface flow has promoted fog development overnight, with visibility continuing to decrease into the early morning hours. The worst visibility is found across portions of southeast Indiana, southwest and southern Ohio, and northern Kentucky. A dense fog advisory has not been issued yet, due to the dense fog remaining confined to local areas. If/when these conditions become more widespread, an advisory will be necessary.

Some additional fog is expected Friday morning, but there is lower potential for areas of dense fog.

KEY MESSAGE 2) After a period of wet conditions leading to flooding, the region will see below normal rainfall through at least the next week, favoring a drying out period.

High pressure number one moves through the Great Lakes today, settling over the Ohio Valley on Friday. Bands of upper level clouds are expected as a belt of moisture advects in from the west. Temperatures are held in check by the air mass moving in from the north, despite the longer number of heating hours in late May.

Into the weekend, the first high pressure weakens as a deep trough digs into the northeast US. A dry cold front swings through the area Friday night into Saturday morning, reinforcing the cooler air mass. Northeast winds are a bit higher Saturday afternoon with gusts between 20 and 30 mph. High pressure number two moves through the Great Lakes Saturday and Saturday night, shifting over the Ohio Valley into Sunday. Given the favorable position of the high pressure, low temperatures are a few degrees cooler Sunday morning.

Another low pressure and surface cold front moves through northeast US early next week. This could bring a very small chance for light showers Monday night into Tuesday, but for now the forecast remains dry. A third high pressure seNo major changes.ttles in through Midweek, maintaining the persistent pattern for another day or so.

There are some hints at a pattern change by the end of next week.

AVIATION /12Z THURSDAY THROUGH MONDAY/

Light northeasterly flow will help to clear out any remaining fog at the start of the period. Northeasterly flow increases a bit this afternoon with an occasional gust between 15 and 20 mph possible.

Until confidence increases on mist/fog tonight, kept most sites at prevailing VFR conditions. LUK/ILN are the only exceptions at this time.

OUTLOOK...No significant weather expected.

ILN WATCHES/WARNINGS/ADVISORIES

OH...Dense Fog Advisory until 10 AM EDT this morning for OHZ060>063- 070>073-077>082-088. KY...Dense Fog Advisory until 10 AM EDT this morning for KYZ091>093- 096>100. IN...Dense Fog Advisory until 10 AM EDT this morning for INZ050-058-059- 066-073>075.