In this case, you’re relieved to see no recent strikes over the Preserve, with the closest strikes occurring over Miami Beach. Click on a grid cell to view the number of detected strikes over the time period you’ve selected. It is designed to show whether any lightning was occurring over a given area, but not exactly where specific strikes occurred. This product aggregates lightning strike detections into a high-resolution grid showing the number of lightning strikes across a given area over a period ranging from 3 hours up to 72 hours in length. For both Past and Current Conditions, Lightning Strike Density data is available.Click on any of the polygons to view more details, including the date and time when it expires. Some of these may be more weather-related, such as flood warnings or frost advisories, while others may be directly fire-relevant, such as fire weather watches, red flag warnings, and wind advisories. This layer displays color-coded polygons corresponding to active watches, warnings, and advisories. Also on the Current Conditions tab, Watches and Warnings issued by the National Weather Service are available.Click on any of them to view more details, including the current acreage of each incident. Fire perimeters show up on the map as orange polygons. Because of that, this layer won’t show every active fire, but only those reported via this system. This layer displays fire events reported through the National Incident Feature Service, often by various agencies managing ongoing wildfires. On the Current Conditions tab, you can view Active Fire Perimeters provided by the National Interagency Fire Center.This first set of gridded datasets can help with exactly that need: Weather and Fire HazardsĪ key aspect of situational awareness is knowing what the weather is doing all around you. These can also help show conditions applicable to your location, including a number of forecast products, which are covered in the next section of this user guide.įor now, let’s go over some of the gridded datasets available on the Past and Current Conditions tabs. The list of gridded datasets in the Fire Weather Intelligence Portal also includes resources that aren’t truly gridded in nature, but that are spatially continuous - that is, they span across an entire region, broken down not by grid cells but by counties, polygon areas, or other discrete zones. With hundreds or thousands of grid cells covering an individual state, they collectively paint a detailed picture about conditions across that region. Each grid cell might cover an area of a few square miles, and the value of each cell would be representative of that area, whether it’s on the top of a mountain, the mouth of a river, or the middle of a forest. True to its name, the term “gridded data” usually refers to data presented on a uniform grid. In those cases, gridded datasets can help fill in data gaps between stations and provide local guidance even when no stations are nearby. While point datasets offer a critical ground truth for local conditions, the limited density of our weather station networks means there won’t always be a representative station near you.
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