 Welcome to the weather forecast for the week beginning Wednesday September 21st. We are racing through September This is chief meteorologist John insworth for Longmont Public Media Sunday September 25th will be our new moon with just a little bit visible Because it's not eclipsing the Sun Speaking of the Sun we have a lot of some spot activity in the southern hemisphere at this time Not sure what's going on the backside, but these are some good good things that could create some aurora and like that Higher latitudes. I think we actually had a aurora last week down to Wyoming Server was a surprise to heliophysicists First day of fall hits Thursday September 22nd 7 o'clock 4 p.m. Mountain time Meteorological fall begins September 1st, but this year I didn't feel like that a lot We were so hit in 90 pretty easily We're up to yesterday, but The cool air has arrived right in time to match astronomical fall beginning nothing changed in the drought between Last week and this week except the exact placement of my Longmont pink dot So nothing changed there, but nationally there's a little less drought to our south and a little less drought out Nevada a little more in California But it is cooling off me are getting water now So right along my 25 not much happened I got some light sprinkles in like that the western slopes got a moderate amount of water and had some activity out on the eastern Plains against severe weather as it expands and Peaks around the end of June and backs off To the fourth week of September got just some out on the plains I'm actually going there this weekend, but we'll see what happens severe. Otherwise Looking at the actual forecast for severe weather. We have just general thunderstorms This is front and system moves in where the low is located in the upper level cool pool They may actually have a Marginal and slight risk near Salt Lake City. It has been 20 years and things like that in Salt Lake City in the past For Thursday general thunderstorms along the Rockies Friday. We get high and dry with storms to the south So flooding rains are possible from the Continental Divide and Westward and Southwestern in Arizona and up here in Montana, Idaho We have a cold front that's now made all the way down Elevation wise draped along the mountains and now down into northern New Mexico For Thursday at the front another truck coming in to kind of reinforce showers briefly Then all that moves out and we're gone smoke wise Wednesday to Friday pretty high and dry and clear So the big event is what is just beginning as I record this on Wednesday About 24 hours of showers I did not mean that to rhyme and then at the end of the month There's a little bit of a turn of moisture that could become more significant as we get closer But it's hard to forecast the next storm until the first storm is gone. It's one of my models Our normal temperatures are dropping pretty quickly from normal high of 76 to 72 And 46 to 42 normal low temperature in the next 10 days So you can see the moisture is back finally. We have a low sitting out here and from Tuesday to Wednesday It's kind of concentrating pulling moisture in we're actually going to have Significantly almost twice as much atmospheric moisture on Wednesday night into Thursday morning as we normally do at this time of year But the problem is the storm itself is not going directly over us It's going to pass to the north So we'll get some lift and we'll get some precipitation will be a third of an inch to a half Notables in the upper air over the next week or so Fiona's still spinning out here, but it's going to curve out to sea last week We didn't know because hadn't even formed yet where it would go Here's our giant high over texas. Here comes that low coming in from Pacific Northwest bringing in showers across most of colorado for Wednesday night Thursday morning Monday noon ridges back in the west trough of the east and that's pretty much Brings back warm temperatures. So it'll be above normal once again Let's put this in motion. Keep an eye on Fiona going away. Here comes that big trough into the west And it goes up into Montana over us. We definitely get a trough dragged across the state So we do get colder and get some showers. Then we have the ridge rapidly building out west Northwest flow a lot for a little bit for us This is Monday next week into Tuesday Wednesday. Here's an interesting thing. I think this is called 98l And right now it's just an investigation like Fiona was and it would be called Headed my mind. Oh, it's a Hermione. If it is the exact next storm that forms It would get the H name Hermione So temperature wise Kind of weird because night time temperatures can be above normal while daytime temperatures can be below normal So you see it popping back and forth between purples and blues and reds and that's not because it's really warm It's just a warm of the normal where you can see what is dropping into the 40s And then in monday and like that you got another cold front heading down on the plains about lots of warmth in the west All right, so looking at moisture. Again, here's the super concentration of moisture for Wednesday to Thursday Wish we could get more actual rain out of that, but it definitely would be cloudy and humid then we really rapidly dry out and Really nothing happens until later next week. How do we get some of the moisture feed up from the tropics again? And there it is trying to come up on tuesday in the arizona Four corners area Utah and they're finally into colorado for wednesday and thursday. Here comes possible Hermione Again where it's going to hit from texas to florida to curving out To see it's all up for grabs. It's just a wide Spread of possibilities. So for showers. I'm just going to look at the early part here Here comes all our 24 hours of rain or so western slopes get another shot So you might have some storms thursday afternoon if a little ripple comes through and then it's a dry dry dry dry So for precipitation about about a quarter inch to half inch or so is most likely about a third of an inch along i-25 Some pretty good water in the western central mountains and southwest four corners area needs it Add five days get the full ten day and everything gets us a little moisture with later showers But not much changes in the overall pattern temperatures in the 60s wednesday and thursday and Cool with a pretty good chance of least sprinkles and mist and drizzle if not some periods of rain We warm up pretty quickly to the low 80s bounce back down to the 70s and then try to get back to the 80s With a hint of some moisture coming back on tuesday. Maybe a little bit more beyond that So here's a hurricane fiona. It's pretty darn strong, but it's staying out here. It is going to um Threaten bermuda, but it looks like it's going to pass to the west northwest of it. Then it goes up here into uh, nervous coach us Here is the early model runs on 98l This since it really doesn't exist yet Everything possible is still on the table. You just have to watch the weather and wait for something to actually form We can get a good hook on what What's there and where it might go? Longmont leader and boom for the leader have frequent weather updates by me and local news. That's great to read This has been chief leader of this gen is worth keep looking up