September 10, 2025
Ms. Stevens introduced the following bill; which was referred to the Committee on Science, Space, and Technology
To amend the Weather Research and Forecasting Innovation Act of 2017 to expand the goals of the tornado warning improvement and extension program, and for other purposes.
Section 1. Short title
This Act may be cited as the Tornado and Windstorm Innovation for Safety and Tracking Enhancement Research Act
or the TWISTER Act
.
Sec. 2. Expansion of goals of tornado warning improvement and extension program
Section 103 of the Weather Research and Forecasting Innovation Act of 2017 (15 U.S.C. 8513; relating to the tornado warning improvement and extension program) is amended—
(1)
by striking The goal of such program
and inserting the following:
(1) In general
The goal of such program; and
(2)
by adding at the end the following:
(2) Additional focuses
In carrying out paragraph (1), the Under Secretary shall ensure the development of innovative tornado forecasts, predictions, and warnings, with a particular focus on the following:
(A)
Fast-developing storm systems, such as derechos.
(B)
Areas historically absent of tornadoes.
(C)
Evening or nighttime tornadoes.