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  Storm Center: Weather Alerts: Warnings


 
My Location: Davenport, IA 
 
Current Time: 04:04:46 PM CDT
Other Alerts  
Weather Alert
    Other Weather Alerts
Type Hydrologic Outlook
Issued By NWS San Juan PR
Issuing Time Tue, 29 Oct 2024 14:18:00 PDT
Broadcast Time Tue, 29 Oct 2024 14:18:00 PDT
Valid Until Wed, 30 Oct 2024 15:00:00 PDT
Brief Description Hydrologic Outlook
Detailed Description ESFSJU Forecast models have consistently indicated a transition toward a wet and unstable weather pattern in recent updates, and current conditions show that this transition is underway. Over the coming days, increasing instability paired with abundant tropical moisture will likely lead to increased thunderstorm activity, with some generating heavy rainfall, frequent lightning, and strong gusty conditions. This pattern will result from the interaction of several synoptic features, including a series of mid-to-upper- level troughs and a nearly stationary front. Combined with well above normal precipitable water values for this period, ranging from approximately 2.1 to 2.5 inches, this interaction will support the heightened shower and thunderstorm activity. A wet and unstable weather pattern is expected to persist through the weekend, with further wet and unstable conditions extending into early next week due to other synoptic influences. For this event, however, the most intense and frequent thunderstorm activity is anticipated between Thursday afternoon and late Friday night. Forecasted rainfall totals range between 2 and 4 inches for this period, with locally higher amounts possible over eastern Puerto Rico, Vieques, Culebra, and the U.S. Virgin Islands. In contrast, lower rainfall totals of 1 to 2 inches are expected across other areas of Puerto Rico. Prolonged moderate to heavy rainfall periods will increase the risk of urban and small stream flooding, flash flooding, and mudslides near steep terrain. Additionally, significant runoff from excessive rainfall could lead to sudden river surges, with some rivers exceeding flood-stage levels. Residents and visitors, especially those in flood-prone areas or planning outdoor activities, are advised to monitor the latest weather forecasts closely.
       
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