National Weather Service United States Department of Commerce

Showers and Thunderstorms from the Great Lakes into the Southern Plains

Frontal boundary and wave of low pressure will keep an active weather pattern from the Great Lakes region through the southern Plains the next couple of days. Isolated instances of severe thunderstorms and flash flooding are possible. Meanwhile, as summer comes to a close, above normal temperatures continue for central and eastern U.S. - especially for most of Puerto Rico with excessive heat. Read More >

Isolated to scattered strong to severe storms are possible this afternoon and evening across portions of southern Oklahoma and into western north Texas. Large hail and damaging winds are the primary hazards.
Rain/storm chances will decrease from west to east this morning. Additional storms are possible again this afternoon/evening, more specifically across portions of southern Oklahoma and into western north Texas. Storms may become strong to severe at times with large hail and damaging winds the main hazards.
Severe storms will be possible from Monday evening through Tuesday morning with the main hazards being large hail and damaging winds. The tornado potential will be low but non-zero.
Showers and storm chances increase Monday evening into Tuesday morning with strong to severe storms possible.
A lingering cold front between central to southeast Oklahoma and adjacent portions of north Texas will be the focus area for strong to severe storms capable of large hail and damaging winds on Tuesday afternoon and into the evening hours.
7-Day Forecast for Oklahoma and western north Texas.
Temperatures are forecast to be near-normal to finish out the end of the month of September. Average daytime high temperatures in late September are in the upper 70s to mid 80s. Average nighttime low temperatures in late September are in the upper 50s to lower 60s.

Local Weather History For September 21st...
Heavy rain in southwest Oklahoma on September 21 and 22, 1969, caused
extensive flooding and damage to pasture and crop land. About 1,500
cattle were trapped by the high water, and many of them drowned. More
than 10 bridges were washed out, and fences were removed by the
floodwaters. Official rainfall measurements exceeded six inches in
some locations, and an unofficial report of 11 inches in 11 hours was
received from Hollister. The flooding was thought to be the worst in
the area since 1951.

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