Possible because of BTC trend is looking downward too. Normally, LTC always follow the trend of BTC. Based on your analysis, You are considering the value in USD($) so most probably it will plunge in USD once BTC plunge. I notice that your analysis is very simple. I'm not that impress about your analysis because it was too play safe in terms of prediction.

I'm for more detailed explanation about your perspective and not only by looking at RSI and the next support line because it was too obvious that LTC will hit that level once BTC dump.