Editing Williamson County, Texas (section)

===Thrall flood===
On September 9 and 10, 1921, the remnants of a hurricane moved over Williamson County. The center of the storm became stationary over [[Thrall, Texas|Thrall]], a small farming town in eastern Williamson County, dropping a storm total of {{convert|39.7|in|mm|abbr=on}} of rain in 36 hours.<ref>{{cite web|title=Significant Weather Events of the 1900s |url=http://www.srh.noaa.gov/ewx/html/wxevent/1997to1999/cen/1900s.htm |publisher=[[National Weather Service]] |access-date=March 22, 2009 |url-status=dead |archive-url=https://web.archive.org/web/20080515223135/http://www.srh.noaa.gov/ewx/html/wxevent/1997to1999/cen/1900s.htm |archive-date=May 15, 2008 }}</ref> The 24-hour rainfall total ending 7 am on September 10, 1921 ({{convert|38.2|in|mm|abbr=on}}) at a U.S. Weather Bureau station in Thrall remains the national official 24-hour rainfall record. Thrall's rainfall was {{convert|23.4|in|mm|abbr=on}} during 6 hours, {{convert|31.8|in|mm|abbr=on}} during 12 hours, and {{convert|36.4|in|mm|abbr=on}} during 18 hours.<ref name="usgs">{{cite web|title=Major and Catastrophic Storms and Floods in Texas|url=http://pubs.usgs.gov/of/2003/ofr03-193/cd_files/USGS_Storms/patton.htm|publisher=[[United States Geological Survey]]|access-date=March 22, 2009|url-status=live|archive-url=https://web.archive.org/web/20090511014322/http://pubs.usgs.gov/of/2003/ofr03-193/cd_files/USGS_Storms/patton.htm|archive-date=May 11, 2009}}</ref> Eighty-seven people drowned in and near Taylor, and 93 in Williamson County. This storm caused the most deadly floods in Texas, with a total of 215 fatalities.