Just sharing some weather-geek links I find useful. The first one is new, so, not much experience with it yet....
https://hdwx.tamu.edu/product-list/
https://weather.cod.edu/satrad/
https://earth.nullschool.net/#curren...-97.212,32.949
Of course, NWS provides lots of details... https://www.weather.gov/ (click the map for regional info)
If you work for an organization that has emergency response tasking (including TV weather reporting), NWS Chat is a real-time tool that connects emergency management with the regional weather service locations. When we spin up our local EOC for weather events, this is the second place we log into, after bringing up our local CASA radar. Real time information as it becomes known, either from NWS or from spotters reporting in to NWS via HAM or phone. NWS Chat is not open to the general public, only EM-type folks. https://nwschat.weather.gov/live/
CASA is not available everywhere, but if it's available in your AO, your EM should definitely make use of it.
There is a CASA phone app, but I've never used it. Can't say whether it's of any value.
http://www.casa.umass.edu/
http://www.casa.umass.edu/main/research/urbantestbed/
Best phone app for tracking severe weather is, IMO, RadarScope.
Absolutely worth the app price if you live where severe weather is a concern. There's also a Windows version.