What's interesting is how the 200d (blue line here) has merged perfectly with a trendline established 21/22 Sep (red line). The and have acted as a support line and provided a window for NG price trend range - see how the has bound to the as if they were one and the same.
Also interesting is how the channel, shown as dotted lines here, is also well aligned with the in the same way. Other possibilities I've shown here (yellow and dark red) illustrate potential alternative variant support lines.
The 100d (orange line) is currently holding us where we are now and explains where we have settled today despite a number of attempts at a breakout. If we drop from here, we may look for the 200d level as support - likely within the timeframe provided by the green line. This is likely to fall indirectly and over time rather than suddenly as a particularly cold snap of weather is due to hit the US by the 27th Jan.