Latency Issues

I started experiencing odd latency issues yesterday and I'm hoping to get some insight as to what it might be and how I should proceed. This seems to be intermittent, latency will look good for an hour or two and then I will randomly start getting really high ping times.

Here is a sample of what I'm experiencing using the IP of the first hop (Outside my Network) on a trace route. Normally it stays between 8-12ms.

Reply from 10.33.200.1: bytes=32 time=8ms TTL=254
Reply from 10.33.200.1: bytes=32 time=88ms TTL=254
Reply from 10.33.200.1: bytes=32 time=10ms TTL=254
Reply from 10.33.200.1: bytes=32 time=9ms TTL=254
Reply from 10.33.200.1: bytes=32 time=8ms TTL=254
Reply from 10.33.200.1: bytes=32 time=7ms TTL=254
Reply from 10.33.200.1: bytes=32 time=16ms TTL=254
Reply from 10.33.200.1: bytes=32 time=24ms TTL=254
Reply from 10.33.200.1: bytes=32 time=173ms TTL=254
Reply from 10.33.200.1: bytes=32 time=11ms TTL=254
Reply from 10.33.200.1: bytes=32 time=129ms TTL=254
Reply from 10.33.200.1: bytes=32 time=7ms TTL=254
Reply from 10.33.200.1: bytes=32 time=11ms TTL=254
Reply from 10.33.200.1: bytes=32 time=353ms TTL=254
Reply from 10.33.200.1: bytes=32 time=227ms TTL=254
Reply from 10.33.200.1: bytes=32 time=108ms TTL=254
Reply from 10.33.200.1: bytes=32 time=321ms TTL=254
Reply from 10.33.200.1: bytes=32 time=10ms TTL=254

Everything to the Router (192.168.0.1) and to the modem (192.168.100.1) looks good.

I have tried rebooting the modem and router several times.

Modem: SurfBoard SB6141

Signal Levels:

UPSTREAM