National Weather Service Smoke Forecast

This map displays projected visible surface smoke across the contiguous United States for the next 48 hours in 1 hour increments. It is updated every 24 hours by NWS. Concentrations are reported in micrograms per cubic meter. Where is the data coming from? The National Digital Guidance Database (NDGD) is a sister to the National Digital Forecast Database (NDFD). Information in NDGD may be used by NWS forecasters as guidance in preparing official NWS forecasts in NDFD. The experimental/guidance NDGD data is not an official NWS forecast product. Source: https://tgftp.nws.noaa.gov/SL.us008001/ST.opnl/DF.gr2/DC.ndgd/GT.aq/AR.conus/ds.smokes01.bin Source data archive can be found here: https://www.ncei.noaa.gov/products/weather-climate-models/national-digital-guidance-database look for 'LXQ...' files by date. These are the Binary GRIB2 files that can be decoded via DeGRIB tool. Where can I find other NDGD data? The Source data is downloaded and parsed using the Aggregated Live Feeds methodology to return information that can be served through ArcGIS Server as a map service or used to update Hosted Feature Services in Online or Enterprise. What can you do with this layer? This map service is suitable for data discovery and visualization. Identify features by clicking on the map to reveal the pre-configured pop-ups. View the time-enabled data using the time slider by Enabling Time Animation. Revisions June 22, 2026: Updated field description and alias details. July 11, 2022: Feed updated to leverage forecast model change by NOAA, whereby the Hybrid Single-Particle Lagrangian Integrated Trajectory (HYSPLIT) forecast model system was replaced with the Rapid Refresh (RAP) forecast model system. Key differences: higher accuracy with RAP now concentrated at 0-8 meter detail vs HYSPLIT at 0-100 meter; earlier data delivery by 6 hrs; forecast output extended to 51 hrs. This map is provided for informational purposes and is not monitored 24/7 for accuracy and currency. If you would like to be alerted to potential issues or simply see when this Service will update next, please visit our Live Feed Status Page!本地图展示了美国本土连续区域未来48小时内逐1小时的地表可见烟雾投影分布情况，由美国国家气象局（National Weather Service, NWS）每24小时更新一次。烟雾浓度单位为微克每立方米。 数据来源说明：国家数字指导数据库（National Digital Guidance Database, NDGD）是国家数字预报数据库（National Digital Forecast Database, NDFD）的配套数据库。美国国家气象局预报员可将NDGD中的信息作为预报指导，用于编制NDFD中的官方预报产品。但本数据集所采用的NDGD试验/指导数据并非美国国家气象局的官方预报产品。 数据来源地址：https://tgftp.nws.noaa.gov/SL.us008001/ST.opnl/DF.gr2/DC.ndgd/GT.aq/AR.conus/ds.smokes01.bin 源数据归档可访问以下地址获取：https://www.ncei.noaa.gov/products/weather-climate-models/national-digital-guidance-database，可按日期检索名称以"LXQ..."开头的文件。此类文件为二进制GRIB2格式数据，可通过DeGRIB工具进行解码。 其他NDGD数据获取方式：本数据集的源数据通过聚合实时馈送（Aggregated Live Feeds）方法完成下载与解析，所得信息可通过ArcGIS服务器（ArcGIS Server）发布为地图服务，或用于更新ArcGIS Online与ArcGIS Enterprise中的托管要素服务。 本图层功能说明：该地图服务适用于数据探索与可视化展示。用户可通过点击地图识别要素，查看预配置的弹窗信息；启用时间动画功能后，可通过时间滑块查看支持时间维度的数据集。 更新日志： 2026年6月22日：更新了字段描述与别名详情； 2022年7月11日：因美国国家海洋和大气管理局（National Oceanic and Atmospheric Administration, NOAA）更新预报模型，本数据源同步升级：原混合单粒子拉格朗日综合轨迹（Hybrid Single-Particle Lagrangian Integrated Trajectory, HYSPLIT）预报模型系统已替换为快速刷新（Rapid Refresh, RAP）预报模型系统。核心改进包括：RAP模型的精度更高，当前分辨率聚焦于0-8米尺度，而HYSPLIT模型分辨率为0-100米；数据交付时间提前6小时；预报时长延长至51小时。 本地图仅供信息参考，未进行7×24小时的精度与时效性监控。若您希望接收潜在问题预警或查询本服务的下次更新时间，请访问我们的实时数据源状态页面！