--- title: Coastal Storm, Atlantic Awakening, and Tropical Socal Rain description: We take a look at the coastal storm bring rough conditions to the Midatlantic today, signs of life in the Atlantic, and potential Southern California rain. image: https://www.getweatherstem.com/hubfs/45511922.gif --- On The Radar with Jess # Coastal Storm, Atlantic Awakening, and Tropical Socal Rain ![Jessica Arnoldy](https://www.getweatherstem.com/hubfs/Website%20Images/jess.jpg) Jessica Arnoldy September 16, 2025 [On the Radar with Jess](https://www.getweatherstem.com/blog/tag/on-the-radar-with-jess) ![](https://www.getweatherstem.com/hs-fs/hubfs/45511922.gif?width=1050&height=725&name=45511922.gif) As we discussed in [yesterday's blog](https://www.getweatherstem.com/blog/coastal-storm-to-bring-heavy-rain-to-midatlantic?utm_campaign=21751165-Weather%20Information&utm_content=347618144&utm_medium=social&utm_source=twitter&hss_channel=tw-2756362826) , a coastal storm has brought heavy rain and gusty winds to parts of the Midatlantic today. Check out the view from today from our [Weatherstem Station](https://currituck.weatherstem.com/ccemcarovabeach) in Carova Beach that has received over 2.5" of rain and counting and has gusted to 48 mph!    The good news is this system will be weakening and moving out of the area by later this week but an additional 2-3" of rain could fall between Tuesday evening and Thursday evening: ![Image 12-1](https://www.getweatherstem.com/hs-fs/hubfs/Image%2012-1.jpeg?width=653&height=536&name=Image%2012-1.jpeg) Moving back to the Atlantic Basin, the NHC is still monitoring 92L which now has a 90% chance to develop over the next 2 days and has also introduced an area to watch behind 92L which has a 20% chance to develop over the next 7 days: ![Image 13-1](https://www.getweatherstem.com/hs-fs/hubfs/Image%2013-1.jpeg?width=555&height=410&name=Image%2013-1.jpeg)92L has continued to increase its convection over the day today and has a large envelope of storm activity associated with it. It can develop into a depression or tropical storm at any point now.  ![29958453](https://www.getweatherstem.com/hs-fs/hubfs/29958453.gif?width=593&height=441&name=29958453.gif)No changes to the thinking yesterday in that whatever does develop should remain north of the Caribbean Islands and stay east of the United States. At this point, it seems that Bermuda is the only land that could potentially get impacts from the system: ![GFS Ensembles](https://www.getweatherstem.com/hs-fs/hubfs/Image%2015-1.jpeg?width=355&height=224&name=Image%2015-1.jpeg)         ![Image 14-1](https://www.getweatherstem.com/hs-fs/hubfs/Image%2014-1.jpeg?width=355&height=224&name=Image%2014-1.jpeg) Over in the Eastern Pacific, the NHC has been monitoring Tropical Storm Mario for awhile now and while it is forecasted to slowly weaken, some of its associated moisture could get pulled into Southern California: ![Image 18-1](https://www.getweatherstem.com/hs-fs/hubfs/Image%2018-1.jpeg?width=375&height=308&name=Image%2018-1.jpeg)  ![ecmwf-deterministic-swus-pwat-1758024000-1758067200-1758240000-10](https://www.getweatherstem.com/hs-fs/hubfs/ecmwf-deterministic-swus-pwat-1758024000-1758067200-1758240000-10.gif?width=375&height=308&name=ecmwf-deterministic-swus-pwat-1758024000-1758067200-1758240000-10.gif)Up to 2" of rain could fall in the Southern California region, which is relatively rare this time of year as Downtown Los Angeles only averages .13" of rain in the month of September.  ![Image 17-1](https://www.getweatherstem.com/hs-fs/hubfs/Image%2017-1.jpeg?width=363&height=298&name=Image%2017-1.jpeg)          ![](https://www.getweatherstem.com/hs-fs/hubfs/image-png-1.png?width=350&height=305&name=image-png-1.png) Some of our weather stations in Southern California could get their first measurable rainfall in months from this system. Track the current conditions and forecast for these locations in Ventura County [here](https://ventura.weatherstem.com).                    Weatherstem ### Real-time weather monitoring for the organizations that can't afford to guess. Professional hardware, live HD camera, automated alerts, and software — installed and managed for you. 900+ stations deployed nationwide across emergency management, athletics, and commercial operations. [ Book a Free Demo ](https://www.getweatherstem.com/contact-weatherstem) ![Jessica Arnoldy, Director of Meteorology Services at Weatherstem](https://www.getweatherstem.com/hubfs/Website%20Images/jess.jpg) Jessica Arnoldy Director, Content and Meteorology Services Jessica brings nearly two decades of broadcast and operational meteorology experience to Weatherstem. She spent 19.5 years as a senior meteorologist at The Weather Channel and holds a BS from Georgia Tech and MS from Penn State. She writes On The Radar to help emergency managers, athletic directors, and operations teams understand what severe weather means for their specific situations. 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