Here are some of the links that David, KG5VSR, mentioned during his July 20th, 2025, training presentation.
NT5TM.net , and especially the link to Apollo in Realtime.
The ARRL publication Storm Spotting and the Radio Amateur.
The NWS page for SKYWARN resources.
The ARRL's ARES page and the ARRL's new learning center which has their three on-line EMCOM classes.
Aaron Huelett's personal resource page .
The net listing page of the Dallas ARC .
The US RACES home page.
A RACES group in Virginia has produced a RACES Resource Library, including a simplex operations guide.
Finally, don't forget to read a manga about some zombies!