A devastating string of severe thunderstorms and tornadoes tracked through Texas, Oklahoma, Kansas, and Nebraska on Saturday, April 14.
This severe weather outbreak was remarkable in its duration as supercell thunderstorms began to pop up in western Kansas late Saturday morning, and the dry line that was supposed to represent the end of the severe weather threat was only halfway through Kansas, Oklahoma, and Texas by 1:00 AM Central Time Sunday.
Above: Double tornadoes in Oklahoma near the Kansas border.
40° DEW POINT DIFFERENCE ALONG DRY LINE
The moisture difference on either side of this dry line was remarkable as well, with dew points in the upper 60°s F to the east, and a very dry 20°s F to the west.
Above: Night tornado in Manchester, Oklahoma.
STORM PREDICTION CENTER REPORTS
The Storm Prediction Center storm reports show the track of these storms, with Kansas being the hardest hit. Early in the afternoon, most of the supercell thunderstorms were consistently producing weak tornadoes that skipped across western and central Kansas. As the low-level jet stream kicked in late in the afternoon and into the evening, the thunderstorms strengthened considerably. 
Above: Radar image of the tornado that hit the south side of Wichita, Kansas.
Probably the most remarkable supercell thunderstorm began in western Oklahoma near Woodward as a stunning multi-vortex tornado. The tornado actually was several tornadoes that danced into southern Kansas and eventually threatened Wichita.
Above: Overturned tractor trailer trucks on I-29 in Fremont County, Iowa.
The tornado passed just south and east of the city, producing an 84 mph wind gust at the Wichita Airport. It also did extensive damage at the airport. In addition, the Oaklawn area of Wichita was declared a disaster area very soon after the tornado passed. The Sedgwick County commissioner declared the county a disaster area. This wedge tornado eventually moved along the Kansas Turnpike northeast of Wichita before finally dissipating.
The deadliest tornado of the outbreak struck Woodward, Oklahoma early Sunday morning, as the main squall line moved through western Oklahoma. This tornado was very large and particularly dangerous since it occurred at night when most residents assumed the threat had ended.
There were multiple reports of not hearing the city's siren, so it is entirely possible that the siren was either struck by lightning or hit by the tornado itself. At least five deaths have been confirmed in the Woodward area from this tornado. Probably the scariest video of a tornado was taken of this Woodward tornado as it moved into town. Note you can see the scale of the tornado as between power flashes.
