Severe flooding has been occurring in Texas over the last 24 hours, and we are now seeing some amazing rainfall totals coming in.
Hundreds of CoCoRaHS observations from Texas have been received, and there are a lot of locations that have seen 6 to 10 inches of rain over the last 24 hours. In Navarro County, three sites saw more than 15 inches, and two of those sites saw over 18 inches! The highest was CoCoRaHS station TX-NV-6 where 18.95 inches of rain has fallen. The green polygons on the map below are flash flood warnings:
Incredibly, more / much more / rainfall is on the way. Enhanced by the remnants of Hurricane Patricia, model guidance is showing that another foot or more of rain will fall over portions of southern and eastern Texas through the remainder of the weekend:
Mother Nature tried to slip one in on us. Showers formed across southeast Kingfisher and Canadian counties during the late evening hours of the 23rd. These showers moved eastward across southern sections of Logan County into the early morning hours of the 24th. Some small areas of eastern Canadian County may have seen upward of 1/2 inch of rain.
I guess we could call this the great rain that wasn’t. Total rainfall ended up being a lot less than was advertised by model guidance leading up to the event. The heaviest precipitation fell across southern Blaine County and Canadian County. All observations over one inch occurred across southern and eastern Canadian County.
Another low end precipitation event. Once again, most of the rainfall missed the rain gauges across the area. Light showers occurred in portions of Blaine and Canadian counties. The greatest precipitation fell across northern Garfield County.
It looks like most folks in the area missed out on measurable rainfall. Radar rainfall estimates show about 1/3 of an inch of rain may have fallen in some small areas of Garfield, Payne and Canadian counties.
Kind of a pathetic rainfall event on Monday, but a few spots have seen some measurable rainfall.
Showers and thunderstorms moved southeastward across the area during the morning hours. The greatest precipitation fell across Payne County where some places saw almost two inches of rain.
Widely scattered showers, producing light to occasionally moderate rainfall moved across the area from late Tuesday to early on Wednesday. The heaviest precipitation fell across southern Blaine County and western Canadian County, where radar rainfall estimates approached 1/2 inch.
The highest CoCoRaHS observation in the state came from OK-BL-1 / 9.8 WNW Geary with 0.14 of an inch.
Non-CoCoRaHS rainfall across the area included 0.08 of an inch at the Watonga Mesonet site, and 0.01 of an inch from the cooperative observer in Enid.
Light to moderate rain fell across western portions of the area. The heaviest precipitation occurred across western Blaine County where radar rainfall estimates exceeded 3/4 of an inch.
Showers and thunderstorms on the 25th/26th produced isolated areas of measurable rainfall near and north of Marshall – and from Stillwater to Perkins.
The highest observed CoCoRaHS rainfall was 2.4 NE FAY (OK-BL-2) with 0.67 inch.
The highest observed non-CoCoRaHS rainfall occurred at the Perkins mesonet site with 0.59 inch.