EMB ERJ 170/175 ER/LR
Flight Crew Air Transport Pilot (ATP); Flight Crew Multiengine; Flight Crew Instrument
Deviation - Altitude Excursion From Assigned Altitude; Deviation - Speed All Types; Inflight Event / Encounter Weather / Turbulence
General Maintenance Action
Weather
Encountered possible severe turbulence on descent into OKC; momentary loss of altitude -700 ft. and +1000 FPM airspeed +/- 15 kts. with pressure against the seatbelt. It was borderline if it was severe but written up out of an abundance of caution.
E175 Captain reported airspeed and altitude excursions after encountering severe turbulence on descent into OKC.