NWS Forecast Office Tulsa, OK

A Dense Fog Advisory is now in effect through 9 am for far northeast Oklahoma and far northwest Arkansas. Visibilities of a quarter mile or less, particularly near bodies of water and valley areas, should be expected. Rapid changes in visibility over short distances are likely.

Areas of fog will exist early Sunday morning across eastern Oklahoma and northwest Arkansas, especially along and north of I-40. Fog may reduce visibilities to one mile or less and become locally dense at times. Fog is likely to dissipate Sunday morning after sunrise.

Patchy fog may redevelop Sunday night into Monday morning in areas along and north of I-40. Visibilities under a mile at times will be possible.

Temperatures warm to above normal through mid week, with cooler weather late in the work week.