Weather Talk

Weather Blog: Sunny Day for Thursday

NORTHWEST ARKANSAS, (KNWA) - At present, the surface high pressure is atop the region, leading to light winds and chilly temperatures. 

Low to mid cloud deck across extending along the Oklahoma/Kansas border should continue to edge eastward, leading to some cloudiness north of highway 412 this morning. 

Afternoon highs will be around 15 degrees below normal.

Rain chances increase late tonight and into tomorrow, especially across northern portions of the area, as an upper-level wave moves through the northern and central plains and brushes our region.

Amounts should be fairly light, especially compared to what is forecast for the weekend.

Speaking of the weekend, widespread moderate to heavy rainfall is likely to begin to spread northeastward into eastern Oklahoma during the day Saturday, reaching western Arkansas by Saturday evening. 

This heavier rainfall is in response to moisture associated with the remnants of Sergio in the Pacific and the approach of another strong cold front.

The overall model trend is indicating a farther south position of the axis of heaviest rainfall than at this same time yesterday, likely near the I-40
Corridor, with areal average amounts near 3 inches in the main axis.

After this initial round of showers moves through, a second batch is expected Sunday night and into Monday, before the upper trough finally clears the area. 

The second axis of heavier rain looks to be farther southeast than the initial batch.

Temperatures on Monday will be very chilly due to the rain and lingering cloud cover. 

With highs forecast near and perhaps below 50 degrees in some spots, these would be the coldest daytime temperatures seen since early to mid-April.

Dry weather and a slow warmup are expected mid to late next week, although temperatures even late next week should be below normal for this time of year.

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