Investors seek growth stocks to capitalize on above-average growth in financials that help these securities grab the market's attention and produce exceptional returns. But finding a great growth stock is not easy at all.

That's because, these stocks usually carry above-average risk and volatility. In fact, betting on a stock for which the growth story is actually over or nearing its end could lead to significant loss.

However, it's pretty easy to find cutting-edge growth stocks with the help of the Zacks Growth Style Score (part of the Zacks Style Scores system), which looks beyond the traditional growth attributes to analyze a company's real growth prospects.

Northwest Natural (NWN Quick QuoteNWN - Free Report) is on the list of such stocks currently recommended by our proprietary system. In addition to a favorable Growth Score, it carries a top Zacks Rank.

Research shows that stocks carrying the best growth features consistently beat the market. And returns are even better for stocks that possess the combination of a Growth Score of A or B and a Zacks Rank #1 (Strong Buy) or 2 (Buy).

Here are three of the most important factors that make the stock of this natural gas distributor a great growth pick right now.

Earnings Growth

Earnings growth is arguably the most important factor, as stocks exhibiting exceptionally surging profit levels tend to attract the attention of most investors. And for growth investors, double-digit earnings growth is definitely preferable, and often an indication of strong prospects (and stock price gains) for the company under consideration.

While the historical EPS growth rate for Northwest Natural is 1.1%, investors should actually focus on the projected growth. The company's EPS is expected to grow 23.4% this year, crushing the industry average, which calls for EPS growth of 9.2%.

Cash Flow Growth

While cash is the lifeblood of any business, higher-than-average cash flow growth is more important and beneficial for growth-oriented companies than for mature companies. That's because, growth in cash flow enables these companies to expand their businesses without depending on expensive outside funds.

Right now, year-over-year cash flow growth for Northwest Natural is 4.9%, which is higher than many of its peers. In fact, the rate compares to the industry average of -0.1%.

While investors should actually consider the current cash flow growth, it's worth taking a look at the historical rate too for putting the current reading into proper perspective. The company's annualized cash flow growth rate has been 7.2% over the past 3-5 years versus the industry average of 7%.

Promising Earnings Estimate Revisions

Beyond the metrics outlined above, investors should consider the trend in earnings estimate revisions. A positive trend is a plus here. Empirical research shows that there is a strong correlation between trends in earnings estimate revisions and near-term stock price movements.

The current-year earnings estimates for Northwest Natural have been revising upward. The Zacks Consensus Estimate for the current year has surged 1.4% over the past month.

Bottom Line

While the overall earnings estimate revisions have made Northwest Natural a Zacks Rank #2 stock, it has earned itself a Growth Score of B based on a number of factors, including the ones discussed above.

You can see the complete list of today's Zacks #1 Rank (Strong Buy) stocks here.

This combination positions Northwest Natural well for outperformance, so growth investors may want to bet on it.