Storms are about to ramp up in Arizona

You're watching the Fox 10 Weather Experts with meteorologist Erica Horvathin on Fox 10 News. Welcome back. It was another beautiful day here in the valley. Temperatures right around normal for this time in October. So we have definitely been getting lucky with the weather, at least the weather between the big storm systems that we have seen plow through the state. And we do have another one of those on the way. So this little period of perfect October temperatures and sunshine is about to come to an end. Today we made it into those mid-80s across the deserts of southern and western Arizona. We saw 50s up there in Flagstaff, 60s for much of the Mogollon Rim, and a little warmer in Sedona with a high of 72. And right now we're already cooling down quickly in spots like Sedona. We're at 66, 82 now in Phoenix. Light winds across the state. It was a little breezier in the high country earlier, but as the sun sets, we'll see calmer conditions and the clouds are rolling in from the southwest. This is just the beginning of a pretty long, cloudy stretch of weather. And all of it is coming in from the Pacific, where there's a ton of moisture just ready to move on shore, bringing us those cloudy, rainy days. So as we go through the next 24 hours, we're going to see quite the increase in moisture in the form of clouds. Tomorrow's looking cloudy, but pretty dry. And by around Friday, Thursday night to Friday morning, we'll start to see a good amount of rain moving in across the state. Then there's a lull on Saturday before the next bigger round of storms move in across Arizona with this upper level trough. So we have those two main days of rain that we're expecting Friday and Sunday. So for Friday, it's mainly going to be scattered showers and thunderstorms along with some heavy downpours, not quite as widespread as what we're going to be seeing from Saturday night through Sunday. With that storm, it's all around a bigger storm system. It's bringing in an atmospheric river of moisture and so we could see some really high rainfall totals especially during that second storm and overall this is going to lead to chances for flooding from pretty much Friday through Monday morning. We have a good look at the timing of that rain so far but it you know things could change it all just takes this storm system to move in a little bit slower or a little bit faster to change this. But for now, since of course it is Halloween weekend, I'll show you what we've got. Those precip chances will look pretty high on Friday. They start to drop on Friday night. Saturday, they're the lowest. We could see a couple of spotty showers. At this point, it's looking like maybe the morning and then a drier afternoon in the valley. But by Saturday night after 8 p.m., rain chances are back up to 90% and sticking around through Sunday. As for the high country, Flagstaff, it's looking very similar with a lower chance for some hit or miss showers on Saturday. But by Saturday night, we are going to be seeing rain for sure. So you'll want to get out and do that trick-or-treating a little bit earlier in the evening. And if you do have late night plans on Halloween night. Just know that you might get rain then. As for temperatures, 64 will be our low in Phoenix tonight, 50 in Sedona and 35 in Flagstaff. And tomorrow, temperatures will be similar to today. Right back to normal, 85 in the Valley. We'll see 68 in Show Low and 68 in Prescott. Our 10-day forecast shows temperatures cooling down as the rain moves in on Friday. Saturday is not too bad, though. Slightly warmer because we should see some peaks of sunshine throughout the day, and then cooling back down on Sunday as that widespread rain moves in. But next week is looking gorgeous. Yeah, after Friday, it's just 70s across the board there. That looks awesome. I know. It's hard to believe. I know. We've been waiting for it. Feeling like fall. We love it. Yeah. All right, Erica. Thanks.