A very wet weather pattern will continue across portions of the southern U.S. from Texas into the lower Mississippi Valley over the next few days.
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An upper-level trough in conjunction with a slow-moving frontal boundary will continue to interact much above average levels of moisture to trigger active showers and thunderstorms across the region, with the main focus only shift rather slowly from southeastern Texas to the lower Mississippi Valley where areas of flash flooding can be expected.
Rainfall reports across northern Texas showed numerous totals of 5-10 inches where drought conditions had worsen over the past few months.
Locations including the Dallas-Ft Worth area, that received very heavy rainfall amounts in the past 24 hours should be on the western fringe of the heavy rain as the heaviest rains should shift eastward across northern Louisiana today, followed by central and southern Mississippi on Wednesday, where rainfall totals of 3-5 inches with locally heavier amounts are likely over the next few days.
In addition to the wet weather across portions of the South, temperatures are also expected to remain below average due to the cloud cover and rainfall.
There have been a few record cold high temperatures over the past weekend from New Mexico into northwest and northern Texas where it has been cloudy and wet.
The potential for additional record low maximum temperatures will continue Monday and Tuesday over eastern Texas into the Lower Mississippi Valley.
In contrast, above average temperatures will continue over the next few days from the interior Valleys of California, northward into the Great Basin and Pacific Northwest.
However, at the moment, it appears there will not be any record highs across these regions.
The hot and dry weather over portions of the Pacific Northwest, Northern Great Basin and Northern Rockies will also increase the fire weather threat across these regions.
Across the northern Plains, a couple of cold fronts settling in from Canada with help trigger showers and thunderstorms, especially during the afternoon into early evening.
These activities should be confined across the northern High Plains today.
As a frontal wave forms, these showers and storms will begin to extend eastward into the upper Midwest by Wednesday reaching into the Great Lakes by Thursday. ■