1999 Dodge Caravan instrument panel

Our 99 grand caravan with 178,000 miles has intermittant 5 to 10 second instrument panel flares. Gauges all go up/down/off/then back to normal. This has happened at all different driving speeds and conditions. Yesterday it happened, but did not return to normal (no gauge readings) for the remaining 4 of 15 miles home. Restarting it in the driveway today, the gauges all come on, but I don't know if it is safe to drive or what the problem is. By reading the other questions here, I dont see the same problem described. Thanks for any info.