It appears that sonic.net is not routing some traffic-
$ traceroute forecast.weather.gov
traceroute: Warning: forecast.weather.gov has multiple addresses; using 165.254.58.75
traceroute to a1380.g.akamai.net (165.254.58.75), 64 hops max, 52 byte packets
1 192.168.2.1 (192.168.2.1) 92.678 ms 0.786 ms 0.855 ms
2 192.168.1.254 (192.168.1.254) 1.800 ms 3.725 ms 6.394 ms
3 70-36-139-1.dsl.dynamic.sonic.net (70.36.139.1) 17.825 ms 8.584 ms 8.596 ms
4 gig1-26.cr1.colaca01.sonic.net (70.36.228.61) 6.405 ms 8.019 ms 7.518 ms
5 po3.cr1.lsatca11.sonic.net (75.101.33.166) 7.887 ms 7.874 ms 7.658 ms
6 0.xe-5-1-0.gw.pao1.sonic.net (69.12.211.1) 9.095 ms 9.707 ms 7.602 ms
7 * * *
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$ traceroute forecast.weather.gov
traceroute: Warning: forecast.weather.gov has multiple addresses; using 165.254.58.75
traceroute to a1380.g.akamai.net (165.254.58.75), 64 hops max, 52 byte packets
1 192.168.2.1 (192.168.2.1) 92.678 ms 0.786 ms 0.855 ms
2 192.168.1.254 (192.168.1.254) 1.800 ms 3.725 ms 6.394 ms
3 70-36-139-1.dsl.dynamic.sonic.net (70.36.139.1) 17.825 ms 8.584 ms 8.596 ms
4 gig1-26.cr1.colaca01.sonic.net (70.36.228.61) 6.405 ms 8.019 ms 7.518 ms
5 po3.cr1.lsatca11.sonic.net (75.101.33.166) 7.887 ms 7.874 ms 7.658 ms
6 0.xe-5-1-0.gw.pao1.sonic.net (69.12.211.1) 9.095 ms 9.707 ms 7.602 ms
7 * * *
8 * * *
9 * * *
10 * * *