{"id":1156392,"date":"2021-03-05T11:50:45","date_gmt":"2021-03-05T19:50:45","guid":{"rendered":"https:\/\/www.esri.com\/arcgis-blog\/?post_type=blog&#038;p=1156392"},"modified":"2021-03-16T05:57:53","modified_gmt":"2021-03-16T12:57:53","slug":"how-many-days-will-it-flood","status":"publish","type":"blog","link":"https:\/\/www.esri.com\/arcgis-blog\/products\/arcgis-living-atlas\/natural-resources\/how-many-days-will-it-flood","title":{"rendered":"How many days will it flood?"},"author":6701,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"open","ping_status":"closed","template":"","format":"standard","meta":{"_acf_changed":false,"_searchwp_excluded":""},"categories":[22771],"tags":[30501,758992,28871,759002,759012],"industry":[],"product":[36581],"class_list":["post-1156392","blog","type-blog","status-publish","format-standard","hentry","category-natural-resources","tag-coastal","tag-coastal-flooding","tag-flooding","tag-nuisance-flooding","tag-sea-level-rise","product-arcgis-living-atlas"],"acf":{"short_description":"NOAA scientists provide outlooks for high tide flooding","flexible_content":[{"acf_fc_layout":"content","content":"<h2 style=\"text-align: center\">NOAA scientists provide outlooks for high tide flooding<\/h2>\n"},{"acf_fc_layout":"image","image":{"ID":1156452,"id":1156452,"title":"Sunny Day Flooding","filename":"Sunny_Day_Flooding.jpg","filesize":587887,"url":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2021\/03\/Sunny_Day_Flooding.jpg","link":"https:\/\/www.esri.com\/arcgis-blog\/products\/arcgis-living-atlas\/natural-resources\/how-many-days-will-it-flood\/sunny_day_flooding","alt":"Nuisance flooding","author":"6701","description":"Flooded street caused by nuisance flooding","caption":"Flooded street caused by nuisance flooding","name":"sunny_day_flooding","status":"inherit","uploaded_to":1156392,"date":"2021-03-04 20:23:03","modified":"2021-03-04 20:46:33","menu_order":0,"mime_type":"image\/jpeg","type":"image","subtype":"jpeg","icon":"https:\/\/www.esri.com\/arcgis-blog\/wp-includes\/images\/media\/default.png","width":2000,"height":1500,"sizes":{"thumbnail":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2021\/03\/Sunny_Day_Flooding-213x200.jpg","thumbnail-width":213,"thumbnail-height":200,"medium":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2021\/03\/Sunny_Day_Flooding.jpg","medium-width":348,"medium-height":261,"medium_large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2021\/03\/Sunny_Day_Flooding.jpg","medium_large-width":768,"medium_large-height":576,"large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2021\/03\/Sunny_Day_Flooding.jpg","large-width":1440,"large-height":1080,"1536x1536":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2021\/03\/Sunny_Day_Flooding-1536x1152.jpg","1536x1536-width":1536,"1536x1536-height":1152,"2048x2048":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2021\/03\/Sunny_Day_Flooding.jpg","2048x2048-width":2000,"2048x2048-height":1500,"card_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2021\/03\/Sunny_Day_Flooding-620x465.jpg","card_image-width":620,"card_image-height":465,"wide_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2021\/03\/Sunny_Day_Flooding-1440x1080.jpg","wide_image-width":1440,"wide_image-height":1080}},"image_position":"center","orientation":"horizontal","hyperlink":""},{"acf_fc_layout":"content","content":"<p>Nuisance flooding is a national issue.\u00a0 These flooding events often occur at high tide during full and new moon cycles.\u00a0 This type of flooding can be observed on sunny days causing streets and low-lying areas to flood due to increased sea heights. Rainfall or storm events can amplify the impacts of nuisance flooding putting further stress on infrastructure such as stormwater systems, roads, and pumping stations while causing property flooding and water quality issues.<\/p>\n"},{"acf_fc_layout":"image","image":{"ID":1156472,"id":1156472,"title":"Chesapeake Flooding Days","filename":"ezgif.com-gif-maker-1.gif","filesize":775422,"url":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2021\/03\/ezgif.com-gif-maker-1.gif","link":"https:\/\/www.esri.com\/arcgis-blog\/products\/arcgis-living-atlas\/natural-resources\/how-many-days-will-it-flood\/ezgif-com-gif-maker-1-3","alt":"Flooding Scenarios for Chesapeake Bay","author":"6701","description":"Flooding Scenarios for Chesapeake Bay","caption":"Flooding Scenarios for Chesapeake Bay","name":"ezgif-com-gif-maker-1-3","status":"inherit","uploaded_to":1156392,"date":"2021-03-04 20:38:21","modified":"2021-03-04 20:39:04","menu_order":0,"mime_type":"image\/gif","type":"image","subtype":"gif","icon":"https:\/\/www.esri.com\/arcgis-blog\/wp-includes\/images\/media\/default.png","width":792,"height":416,"sizes":{"thumbnail":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2021\/03\/ezgif.com-gif-maker-1-213x200.gif","thumbnail-width":213,"thumbnail-height":200,"medium":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2021\/03\/ezgif.com-gif-maker-1.gif","medium-width":464,"medium-height":244,"medium_large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2021\/03\/ezgif.com-gif-maker-1.gif","medium_large-width":768,"medium_large-height":403,"large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2021\/03\/ezgif.com-gif-maker-1.gif","large-width":792,"large-height":416,"1536x1536":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2021\/03\/ezgif.com-gif-maker-1.gif","1536x1536-width":792,"1536x1536-height":416,"2048x2048":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2021\/03\/ezgif.com-gif-maker-1.gif","2048x2048-width":792,"2048x2048-height":416,"card_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2021\/03\/ezgif.com-gif-maker-1.gif","card_image-width":792,"card_image-height":416,"wide_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2021\/03\/ezgif.com-gif-maker-1.gif","wide_image-width":792,"wide_image-height":416}},"image_position":"center","orientation":"horizontal","hyperlink":""},{"acf_fc_layout":"content","content":"<p>The six different maps represent global-mean sea level rise scenarios that range from 0.3 meters for the low scenario to 2.5 meters for the extreme scenario.\u00a0 The number of flooding days at each of these locations are presented in the graph.<\/p>\n<p>Nuisance flooding worsens as sea level rise increases.\u00a0 Locations such as Chesapeake Bay Bridge, VA that are expected to observe <a href=\"https:\/\/apl.esri.com\/jg\/HighTideFlooding\/index.html?station=8638863&amp;year=2031\">20 days<\/a> of nuisance flooding in 2021 are predicted to at least double the amount of flooding days within ten years expecting <a href=\"https:\/\/apl.esri.com\/jg\/HighTideFlooding\/index.html?station=8638863&amp;year=2031\">49 days<\/a> of flooding.<\/p>\n<p>Coastal communities are most impacted by nuisance flooding.\u00a0 Cities such as Miami, FL, Charleston, SC and Alexandria, VA have built up seawalls to help deal with the issue and minimize impacts in vulnerable areas.\u00a0 High Tide Flooding Outlook projections provided by NOAA allow us the insight that the issue is only going to get worse.\u00a0 At what point do we begin to retreat more landward to allow these natural processes to occur?\u00a0 When do coastal management mitigation efforts become too costly and we allow the natural process to take over the areas that are constantly inundated?<\/p>\n"},{"acf_fc_layout":"image","image":{"ID":1156482,"id":1156482,"title":"Miami Flooding","filename":"Miami.jpg","filesize":161053,"url":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2021\/03\/Miami.jpg","link":"https:\/\/www.esri.com\/arcgis-blog\/products\/arcgis-living-atlas\/natural-resources\/how-many-days-will-it-flood\/miami-2","alt":"Flooding in Miami, FL","author":"6701","description":"Flooding in Miami, FL","caption":"Flooding in Miami, FL","name":"miami-2","status":"inherit","uploaded_to":1156392,"date":"2021-03-04 20:40:18","modified":"2021-03-04 20:40:44","menu_order":0,"mime_type":"image\/jpeg","type":"image","subtype":"jpeg","icon":"https:\/\/www.esri.com\/arcgis-blog\/wp-includes\/images\/media\/default.png","width":800,"height":800,"sizes":{"thumbnail":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2021\/03\/Miami-213x200.jpg","thumbnail-width":213,"thumbnail-height":200,"medium":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2021\/03\/Miami.jpg","medium-width":261,"medium-height":261,"medium_large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2021\/03\/Miami.jpg","medium_large-width":768,"medium_large-height":768,"large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2021\/03\/Miami.jpg","large-width":800,"large-height":800,"1536x1536":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2021\/03\/Miami.jpg","1536x1536-width":800,"1536x1536-height":800,"2048x2048":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2021\/03\/Miami.jpg","2048x2048-width":800,"2048x2048-height":800,"card_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2021\/03\/Miami-465x465.jpg","card_image-width":465,"card_image-height":465,"wide_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2021\/03\/Miami.jpg","wide_image-width":800,"wide_image-height":800}},"image_position":"center","orientation":"horizontal","hyperlink":""},{"acf_fc_layout":"content","content":"<p>The <a href=\"https:\/\/apl.esri.com\/jg\/HighTideFlooding\/index.html\">High Tide Flooding App<\/a>, built by <a href=\"https:\/\/www.esri.com\/\">Esri<\/a>, extends NOAA&#8217;s flooding predictions by allowing <strong>quick visualization and understanding<\/strong> of U.S. high tide flooding probability scenarios through 2100.\u00a0 Users can quickly assess how many flooding days are expected to occur within coastal communities each year for the different flooding scenarios ranging from low to extreme.\u00a0 The application also allows sharing of a location and impact year so you can share links with colleagues or quickly compare outlooks.<\/p>\n<p>Coastal planners and state and local municipal leaders, regional planning councils and alike need this information to better understand potential impacts to help plan accordingly.\u00a0 Increasing this understanding can help impact policy and protect the investments of citizens.<\/p>\n<p>This data was sourced from <a href=\"https:\/\/tidesandcurrents.noaa.gov\/publications\/techrpt86_PaP_of_HTFlooding.pdf\">NOAA Technical Report NOS CO-OPS 086: Patterns and Projections of High Tide Flooding Along the U.S. Coastline Using a Common Impact Threshold<\/a> and aggregated for visualization and sharing in <a href=\"https:\/\/www.esri.com\/en-us\/arcgis\/products\/arcgis-pro\/overview\">ArcGIS Pro<\/a>. This application was built with the <a href=\"https:\/\/developers.arcgis.com\/javascript\/\">ArcGIS API for JavaScript<\/a>.\u00a0 You can find the <a href=\"https:\/\/www.arcgis.com\/home\/item.html?id=aa4ca1ef98f84d2696b56a2d9bd5f367\">supporting layer<\/a> and <a href=\"https:\/\/apl.esri.com\/jg\/HighTideFlooding\/index.html\">app<\/a> in the <a href=\"https:\/\/livingatlas.arcgis.com\/en\/browse\/#d=2&amp;q=U.S.%20High%20Tide%20Flooding\">Living Atlas of the World<\/a>.<\/p>\n<p>&nbsp;<\/p>\n<p><iframe loading=\"lazy\" title=\"High Tide Flooding App\" src=\"https:\/\/player.vimeo.com\/video\/519556265?dnt=1&amp;app_id=122963\" width=\"500\" height=\"281\" frameborder=\"0\" allow=\"autoplay; fullscreen; picture-in-picture; clipboard-write\"><\/iframe><\/p>\n"},{"acf_fc_layout":"content","content":"<p>Special thanks to <a href=\"https:\/\/www.linkedin.com\/in\/emilyebba\">Emily Meriam<\/a> for cartography and UI\/UX support (isn&#8217;t the app stunning?), John Grayson for application development and <a href=\"https:\/\/www.linkedin.com\/in\/george-mcleod-1122bb9\/\">George McLeod<\/a> for photos of actual nuisance flooding.\u00a0 I&#8217;m just an ocean data guy with crazy ideas.<\/p>\n"}],"authors":[{"ID":6701,"user_firstname":"Keith","user_lastname":"VanGraafeiland","nickname":"Keith VanGraafeiland","user_nicename":"kvangraafeiland","display_name":"Keith VanGraafeiland","user_email":"KVanGraafeiland@esri.com","user_url":"https:\/\/oceans-esrioceans.hub.arcgis.com\/","user_registered":"2018-03-02 00:18:44","user_description":"Keith VanGraafeiland is a Senior Principal GIS Engineer at Esri and Ocean Content Lead for the ArcGIS Living Atlas of the World. With over 18 years of experience, Keith specializes in marine and environmental GIS, remote sensing, and advanced data science. Keith\u2019s work bridges oceanography and data science, using machine learning and analytics to turn complex data into actionable insights for the GIS community.","user_avatar":"<img data-del=\"avatar\" src='https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2026\/02\/KeithVanGraafeiland-7-465x465.jpg' class='avatar pp-user-avatar avatar-96 photo ' height='96' width='96'\/>"}],"related_articles":[{"ID":874951,"post_author":"6701","post_date":"2020-06-03 21:20:33","post_date_gmt":"2020-06-04 04:20:33","post_content":"","post_title":"Coastal Flooding - rising seas, more flooding","post_excerpt":"","post_status":"publish","comment_status":"open","ping_status":"closed","post_password":"","post_name":"coastal-flooding-rising-seas-more-flooding","to_ping":"","pinged":"","post_modified":"2020-06-05 06:45:36","post_modified_gmt":"2020-06-05 13:45:36","post_content_filtered":"","post_parent":0,"guid":"https:\/\/www.esri.com\/arcgis-blog\/?post_type=blog&#038;p=874951","menu_order":0,"post_type":"blog","post_mime_type":"","comment_count":"1","filter":"raw"},{"ID":1139822,"post_author":"6971","post_date":"2021-02-16 09:51:49","post_date_gmt":"2021-02-16 17:51:49","post_content":"","post_title":"Introducing the U.S. Vessel Traffic application from Living Atlas","post_excerpt":"","post_status":"publish","comment_status":"open","ping_status":"closed","post_password":"","post_name":"introducing-the-u-s-vessel-traffic-application-from-living-atlas","to_ping":"","pinged":"","post_modified":"2021-02-16 09:51:49","post_modified_gmt":"2021-02-16 17:51:49","post_content_filtered":"","post_parent":0,"guid":"https:\/\/www.esri.com\/arcgis-blog\/?post_type=blog&#038;p=1139822","menu_order":0,"post_type":"blog","post_mime_type":"","comment_count":"0","filter":"raw"},{"ID":679902,"post_author":"4941","post_date":"2020-03-05 09:30:31","post_date_gmt":"2020-03-05 17:30:31","post_content":"","post_title":"Critical Knowledge for Siting Facilities: Two Flood Risk Layers in ArcGIS Living Atlas","post_excerpt":"","post_status":"publish","comment_status":"closed","ping_status":"closed","post_password":"","post_name":"critical-knowledge-for-siting-facilities-two-flood-risk-layers-in-arcgis-living-atlas","to_ping":"","pinged":"","post_modified":"2020-03-05 12:33:58","post_modified_gmt":"2020-03-05 20:33:58","post_content_filtered":"","post_parent":0,"guid":"https:\/\/www.esri.com\/arcgis-blog\/?post_type=blog&#038;p=679902","menu_order":0,"post_type":"blog","post_mime_type":"","comment_count":"0","filter":"raw"}],"card_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2021\/03\/Flooded_Road.jpg","wide_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2021\/03\/Nuisance-flooding.jpg"},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v25.9 (Yoast SEO v25.9) - 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