Windstorms in the U.S.
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<div><font face='Avenir Next W01, Avenir Next W00, Avenir Next, Avenir, Helvetica Neue, sans-serif' size='5'><div style='text-align:center;'>Windstorms in the U.S.</div></font></div><div><font face='Avenir Next W01, Avenir Next W00, Avenir Next, Avenir, Helvetica Neue, sans-serif' size='4'><br /></font></div><div><font face='Avenir Next W01, Avenir Next W00, Avenir Next, Avenir, Helvetica Neue, sans-serif' size='4'>This feature layer, utilizing data from the National Oceanic and Atmospheric Administration (NOAA), displays windstorm paths in the United States between 1955 and 2024. Per </font><a href='https://www.nssl.noaa.gov/education/svrwx101/wind/' target='_blank' rel='nofollow ugc noopener noreferrer'><font size='4'>NOAA</font></a><font face='Avenir Next W01, Avenir Next W00, Avenir Next, Avenir, Helvetica Neue, sans-serif' size='4'>, "Damaging winds are often called “straight-line” winds to differentiate the damage they cause from tornado damage. Strong thunderstorm winds can come from a number of different processes. Most thunderstorm winds that cause damage at the ground are a result of outflow generated by a thunderstorm downdraft. Damaging winds are classified as those exceeding 50-60 mph."</font><br /></div><div style='font-family:"Avenir Next W01", "Avenir Next W00", "Avenir Next", Avenir, "Helvetica Neue", sans-serif; font-size:16px;'><span style='font-size:large;'><br /></span></div><div style='font-family:"Avenir Next W01", "Avenir Next W00", "Avenir Next", Avenir, "Helvetica Neue", sans-serif; font-size:16px; text-align:center;'><img alt='USDOC NOAA _ Windstorms in the U_S_ _ 800x400 _ screen capture and popup' src='https://fedmaps.maps.arcgis.com/sharing/rest/content/items/e13b506e08364b37945f0b4f44d9b393/data' /></div><div style='font-family:"Avenir Next W01", "Avenir Next W00", "Avenir Next", Avenir, "Helvetica Neue", sans-serif; text-align:center;'><font size='4'><i>Windstorms in and around Washington D.C.</i></font></div><div style='font-family:"Avenir Next W01", "Avenir Next W00", "Avenir Next", Avenir, "Helvetica Neue", sans-serif;'><font size='4'><span style='font-family:inherit;'><b>Data currency:</b> December 30, 2024</span><br /></font></div><div><font size='4' style='font-family:inherit;'><div style='font-family:inherit;'><b>Data source:</b> <a href='https://www.spc.noaa.gov/gis/svrgis/' style='color:rgb(0, 121, 193); text-decoration-line:none; font-family:inherit;' target='_blank' rel='nofollow ugc noopener noreferrer'>Storm Prediction Center</a></div></font><font size='4' style='font-family:inherit;'><div style='font-family:inherit;'><b>Data modifications: </b><span style='font-family:"Avenir Next W01", "Avenir Next W00", "Avenir Next", Avenir, "Helvetica Neue", sans-serif;'>Added field "Date_Calc"</span></div></font><font size='4' style='font-family:inherit;'><div style='font-family:inherit;'><b>For more information:</b><span style='font-family:inherit;'> </span><a href='https://www.nssl.noaa.gov/education/svrwx101/wind/' style='font-family:inherit; color:rgb(0, 121, 193); text-decoration-line:none;' target='_blank' rel='nofollow ugc noopener noreferrer'>Severe Weather 101: Damaging Winds</a><span style='font-family:inherit;'>; </span><a href='https://www.nssl.noaa.gov/research/wind/' style='color:rgb(0, 121, 193); text-decoration-line:none;' target='_blank' rel='nofollow ugc noopener noreferrer'>NSSL Research: Damaging Winds</a><br /></div></font><font size='4' style='font-family:inherit;'><div style='font-family:inherit;'><b>Support documentation: </b><a href='https://www.spc.noaa.gov/wcm/data/SPC_severe_database_description.pdf' style='font-family:inherit; font-size:0.9375rem; color:rgb(0, 121, 193); text-decoration-line:none;' target='_blank' rel='nofollow ugc noopener noreferrer'><font size='4' style='font-family:inherit;'>SPC Tornado, Hail, and Wind Database Format Specification</font></a><b><br /></b></div><div style='font-family:inherit;'><b>For feedback, please contact:</b> <a href='mailto:ArcGIScomNationalMaps@esri.com' style='color:rgb(0, 121, 193); text-decoration-line:none; font-family:inherit;' target='_blank' rel='nofollow ugc noopener noreferrer'>ArcGIScomNationalMaps@esri.com</a></div></font><font size='4' style='font-family:inherit;'><div style='font-family:inherit;'><br /></div><div style='font-family:inherit;'><div style='font-family:"Avenir Next W01", "Avenir Next W00", "Avenir Next", Avenir, "Helvetica Neue", sans-serif; font-size:16px; text-align:center;'><font size='5' style='font-family:inherit;'>National Oceanic and Atmospheric Administration</font><br /></div><div style='font-family:"Avenir Next W01", "Avenir Next W00", "Avenir Next", Avenir, "Helvetica Neue", sans-serif;'><br /></div><div style='font-family:"Avenir Next W01", "Avenir Next W00", "Avenir Next", Avenir, "Helvetica Neue", sans-serif;'>Per <a href='https://www.noaa.gov/about-our-agency' style='color:rgb(0, 121, 193); text-decoration-line:none; font-family:inherit;' rel='nofollow ugc'>NOAA</a>, its mission is "To understand and predict changes in climate, weather, ocean, and coasts, to share that knowledge and information with others, and to conserve and manage coastal and marine ecosystems and resources."</div></div></font></div>
提供机构：
Esri U.S. Federal Datasets
