Some impressive rainfall totals were recorded across the area from this morning’s storms! Keep in mind the area averages between 3.50″ to 4.50″ inches of rain for the month of April! Some cities picked that up in a matter of hours. Numerous flash flood warnings were issued to cover the training thunderstorms. Thankfully the water has subsided along roads and streets; however, if you are a waterfall photographer, you will have some great opportunities over the next couple of days.
Now flooding is pretty common this time of the year. Remember back to April, 2011? Here’s a description of some catastrophic flooding that occurred just a few years ago.
Severe weather and extreme flooding affected eastern Oklahoma and northwest Arkansas from April 21-27, 2011 along a frontal boundary, which had stalled across the region. The front pushed further eastward by April 27 and was associated with the historic tornadic outbreak across the Deep South Region. A series of upper-level disturbances interacted with the frontal boundary while it was draped across the area, leading to multiple rounds of strong to severe thunderstorms and associated heavy rainfall. By April 24, the once drought-stricken area had become saturated and widespread flash flooding occurred. Storms that continued on April 25 only exacerbated the flash flooding. In addition, rapid rises along area creeks and rivers caused extensive river flooding, especially in the Illinois River Basin, where record flooding occurred.
Several locations across northwest Arkansas and east central Oklahoma measured over 5″ of rain in one day, including: Haskell, OK 6.77″ (4/24 OK mesonet), Okmulgee, OK 6.76″ (4/24 OK mesonet), Prairie Grove, AR 6.07″ (4/25, COOP), Hectorville, OK 5.74″ (4/24, OK mesonet), Porter, OK 5.51″ (4/24, OK mesonet), Muskogee Davis Field, OK 5.19″ (4/24, ASOS), and Hindsville, AR 10E 5.10″ (4/24, COOP). In addition, many locations in this area received 3+ inches of rainfall for 3 days in a row (rain that fell on April 23-25).
Widespread rainfall totals of 6″ to 12″ affected east central Oklahoma and northwest Arkansas during the 7-day period ending at 7 am CDT April 28, 2011. Portions of Adair County in Oklahoma and Washington and Benton Counties in Arkansas received 12″ to 16″ of rainfall during this same time. Rainfall estimate images are shown below. A citizen in Beaver, AR reported 17.7″ rainfall total through the evening of April 25 to a local TV station. For reference, the 30-year normal (1971-2000) April rainfall for Fayetteville, AR is 4.33″ and the normal annual rainfall is 46.02″. The widespread
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