Snowblower won't start after using it for about 2 hours

We have been slammed with snow here, ran my snowblower for hours last night, and then for about an hour this morning , I took a break for some Coffee , and now it won't start , new spark plug
it's a snapper 5200 E
yes, it has gas and the key is on

Have you checked for a spark??

If the mag is gone you wont get a spark.

And check for a cracked fuel primer bulb.

Also check and re-oil the air filter (if it's the oil type) if the air fuel mixture is off due to the air filter is letting too much in, they sometimes wont start.

I agree with Terryl Pull the plug and with the plug wire attached ,lay it on the head so the side is grounded. Turn the motor over and check for spark, It should be blue not white or yellow.. If the spark is sharp and blue.. I am thinking it may have gotten some snow in the air breather.. Take that off and dry it out ..

check you motor oil they have a low oil shut off