GPS Outage NOTAMs

[Aft CofG]

Here is a NOTAM from the ZEG FIR:

130553 CZEG EDMONTON FIR
CZEG DUE TO GPS INTERFERENCE EXER, INTERMITTENT LOSS OF GPS
SIGNAL MAY BE EXPERIENCED IN AREA SURROUNDING COLD LAKE MIL TML
CTA, CYR'S 204,221,222,223,224,225. AFFECTED AREA 60 NM RADIUS
5424N 11016W AT 4000 MSL, EXPANDING TO A RADIUS 160 NM AT 39000
FT MSL. GPS BASED OPS AND RNAV GNSS APCH SHOULD NOT BE PLANNED
WITHIN THIS AIRSPACE FOR THE DURATION OF THE EXER PERIOD. OPR
INFORM ATC UPON LOSS OF GPS SIGNALS. 1300-2200 DLY
1306101300 TIL 1306142200

Here is the same one from the ZWG FIR:

130336 CZWG WINNIPEG FIR
CZWG DUE TO GPS INTERFERENCE EXER, INTERMITTENT LOSS OF GPS
SIGNAL MAY BE EXPERIENCED IN AREA SURROUNDING COLD LAKE MIL TML
CTA, CYR'S 204,221,222,223,224,225. AFFECTED AREA 60 NM RADIUS
5424N 11016W AT 4000 MSL, EXPANDING TO A RADIUS 160 NM AT 39000
FT MSL. GPS BASED OPS AND RNAV GNSS APCH SHOULD NOT BE PLANNED
WITHIN THIS AIRSPACE FOR THE DURATION OF THE EXER PERIOD. OPR
INFORM ATC UPON LOSS OF GPS SIGNALS. 1300-2200 DLY
1306101300 TIL 1306142200

This is the first time I've seen a NOTAM with this kind of wide-reaching effect on GPS operations. There are some aircraft where all or most FMS position information is based on GPS input. Does anyone have any relevant thoughts or helpful insights on this topic?

[shitdisturber]

If Maple Flag is still going on; I'm out of the country right now and don't really know, I'd hazard a guess it's interference from AWAC's or something of that ilk. And re-reading the NOTAMs it seems pretty clear that Flag is still running.

[Aft CofG]

Yes, Maple Flag is still going on. I've just never seen any GPS interruptions published like this before. I'm curious if anyone has had, or will have, any difficulty operating with these GPS outages occurring.

[Colonel Sanders]

I've just never seen any GPS interruptions published like this before

I've seen them before in the USA, but I'm
not sure I'm allowed to mention that.