HEMP EMP is not going to be "it". CME could do a LOT of damage, but there will still be things up and rolling.
My suggestion for finding out information if you believe that a CME has just knocked out your power, is to walk out to your car, turn the car ignition key to "ACC" so that you can turn on the radio without the engine running, and then check your local FM stations. If they are still on, and not broadcasting "info" related to the outage, then I would bet that it is a small area that is actually out. FM radio stations have a range of less than 70 miles
NORMALLY, so this will be all your local info, and MANY of those stations have emergency generators. IF they ARE talking about the power going out, flip over to AM band, and SLOWLY run through the AM band to see what stations are up and running, what they are saying, and where they are. MOST of the powerhouse AM stations are "Clear Channel" stations ( NOT related to the iHeart Media brand, but the ones that are listed here):
Clear-channel station - Wikipedia (I would suggest copying and printing the list of stations there as well).
Almost all Clear Channel stations have backup generators, and are built to survive a LOT of damage and "events". In the daytime, you should be able to hear at least 3-10 of these stations. At night, you should be able to receive a lot more, possibly even a different station few stops up the dial. The reason, is that at night, AM station's range can easily get into the thousand + mile range, so someone in the middle of the US could end up hearing most of the stations in the US... The benefit is that you can get a LOT of good info over a wide area, especially at night.
Another strong suggestion is to make a log NOW of what stations you can hear on but FM and AM on your car's radio. Think of it as a RF extension to your Area Study (you DO have one of them as well for your AO, right?). Log the frequency used, (102.1FM or 1140AM), the time you heard it (go Zulu, 24Hr military time), Callsign (WRXL, WRVA), what they were playing ("Format"), and signal quality (weak/strong). I would suggest doing this early morning (just after dawn), noon, just after sundown, and then late night (22-23:00 (10-11pm)). That way you can see what differences day versus night makes and also see what atmospheric effects will also play into the mix. During some mornings, at certain times of the year, you will hear FM stations way beyond 70 miles, sometimes as much as 200-300 miles away (Ducting/SporadicE layer fun: https ://en.wikipedia.org/wiki/TV_and_FM_DX). The point being is that if you can have a "map" of the stations around you, even the AM ones much further away from you, you can get an idea of how big, or which direction any "large" event may be.
Now, here is the second half of why I am suggesting this... IF, it actually is a CME event in progress, rolling through the FM and then AM dial (provided that you have made your station log already made (and maybe even recently checked), you can scan up the band as you scan down your list and see which stations are still "readable" for the time of day or night that it is at this moment. If you get 5 or 6 out of the say 22 FM logged stations that are readable with decent signal, and the rest are weak, then you go to the AM band and your AM noise floor is WAY higher leaving very few stations even detectable (much less readable), you should start suspecting a strong CME may be in progress. FM has a different effect with noise and "extra" signals than AM does. FM locks onto the strongest signal and that is almost always what you get. This is called the Capture Effect of FM, and is why you have about the same signal quality all the way out to the maximum range of the station before it goes to static, OR before it starts getting overpowered by another station that is on the same frequency further in that direction (which then goes into the quick switching form the original station to the other one back in forth as your antenna gets stronger signals from one versus the other as you are moving (called "Picket Fencing"). AM on the other hand will mix ALL signals (and noise) that is on that frequency and put it out the speaker, which is why if you get two or more Clear Channel stations at night on the same frequency, you may hear both clearly at the same time. AM has not capture effect, but instead plays all of the different signals out at once. This is why aircraft use AM (even though FM is clearer sounding) so that one plane transmitting on one of the air band frequencies does not block out another plane's transmissions on that same frequency. This allows the airport's control tower to hear many planes at once and nobody is blocked out so emergency traffic is always heard. Possibly confusing, but every signal is heard. So if you have a CME, your FM stations should still play through from your close stations (less than 30 miles away), but may have some static, but your more distant stations that you normally can hear will probably be below the new noise level that is being created by the sun's burp of energetic photons and plasma. The AM band will be the final tell, where it will show if the noise floor is strong enough to block out a 30-50KW local AM station, leaving you with a barely recognizable signal versus what you logged earlier.
IF it is a CME event, expect that the loss of the AM stations will continue for at least a day or two, then get weaker. FM will come back quicker, but still the "outage" could last a few hours longer than the actual CME lasts.
The other thing I would do IF I suspected a CME, is to quickly make a solar disc observation box using a cardboard box, tape, and aluminum foil that you can poke a tiny pinhole in:
You can make a Pinhole Projection Viewer to safely view a solar eclipse! It is important to use safe viewing practices during a solar eclipse, as looking directly
www.bgsu.edu
DIY: Pinhole projector using a cardboard box and household items to safely see a solar eclipse.
www.timeanddate.com
If we have just had a CME event (or one is still in progress since they last a while), you WILL see disturbances on the sun with the box. (The box will also be useful during the eclipse in April...).