Simplify the following text for a Grade 14 native English-speaking person.
Original: The Norman , Oklahoma National Weather Service remarked the intensification '' ( resulted ) in what amounts to an inland tropical storm ; '' at 0930 UTC the system presented an eye-like feature and a spiral rainband , and produced wind gusts of over 80 mph ( 130 km\/h ) .
Simplified: The Norman , Oklahoma National Weather Service remarked the intensification '' ( resulted ) in what amounts to an inland tropical storm ; '' at 0930 UTC the system showed an eye-like feature and a spiral rainband , and produced wind gusts of over 80 mph ( 130 km\/h ) .