Last Updated: 5:00 a.m. cdt Saturday, August 18, 2018
Weather Briefing created by: webmaster@nwarwx.com

Patchy morning fog and dry weather with seasonal temperatures are the highlights of todays forecast. Winds remain light over northwest Arkansas with a surface high pressure ridge extending through northwest Arkansas. Highs today will reach the mid to upper 80s with lows tonight in the mid to upper 60s. Light northeasterly winds will gradually shift to the east tonight with the surface high building over the Ohio Valley. Late tonight patchy fog could once again develop near lakes, streams and rivers.

Precipitation chances along with the possibility of strong to severe thunderstorms on Sunday and Monday is the focus of this forecast package. Meanwhile, ahead of an advancing cold front, a warm and moist airmass will be in place across northwest Arkansas with water values between 1.5 and 2.0 inches. Early Sunday morning, showers and thunderstorms are expected to develop in Oklahoma aided by a low level jet. Thunderstorms will then track east and northeast into northwest Arkansas. Locally heavy rain will be possible aided by initial training of thunderstorms. With moderate instability and shear, strong thunderstorms along with a few severe thunderstorms will be possible across northwest Arkansas Sunday afternoon and evening.

In the storm system's wake, seasonably warm and dry weather is expected Tuesday and Wednesday. Both days have high temperatures forecast in the lower 80s. By the middle part of next week, the chance of showers and thunderstorms will be modulated by the location of the upper level ridge of high pressure. There are now indications that mcs's may affect our area on the eastern periphery of the ridge Wednesday night through Friday.

...This Day in Weather History...

In 1915, the remnants of the Galveston Hurricane dumped 8 to 11 inches of rain across northern Arkansas, which resulted in severe river flooding on the Black, White, and Buffalo rivers. The Buffalo River at Gilbert reached a stage of 54 feet.