USDA/NASS Disaster Analysis Web Page https://www.nass.usda.gov/Research_and_Science/Disaster-Analysis/index.php Synopsis Event: Midwest Flooding - July/August 2022 Last Updated: August 17, 2022 ------------------------------------------------------------------------- ------------------------------------------------------------------------- File: July2022_Midwest_Flood_Event_Report.pdf Description: The greater St. Louis area of Missouri and Illinois and areas of southern Illinois and Kentucky experienced heavy precipitation and severe flooding during late July and early August 2022. The United States Department of Agriculture's National Agricultural Statistics Service (NASS) responded to inquiries regarding the extent of flooding over agricultural land in Missouri, Illinois, and Kentucky. Analysis completed using several freely available data products, including Sentinel-1 Synthetic Aperture Radar, Sentinel-2 Modified Normalized Water Index (MNDWI), soil moisture data from Crop-CASMA (Crop Condition and Soil Moisture Analytics), and the NASS 2021 Cropland Data Layer. For this event, inundation raster files for the areas of interest are included for download. -------------------- Inundation Data St. Louis Area: StLouis_Inundation_Raster_20220801.tif Inundation derived from Sentinel-2 Modified Normalized Water Index (MNDWI) dated August 1, 2022. Value 0 = No Inundation Value 1 = Inundation Southern Illinois: Illinois_Inundation_Raster_20220803.tif Inundation derived from Sentinel-1 Synthetic Aperture Radar dated August 1, 2022 and Sentinel-2 Modified Normalized Water Index (MNDWI) dated August 3, 2022. Value 0 = No Inundation Value 1 = Inundation Southern Kentucky: Kentucky_Inundation_Raster_20220808.tif Inundation derived Sentinel-1 Water Index (SWI) imagery dated between July 27 and August 8, 2022. Value 0 = No Inundation Value 1 = Inundation -------------------- Climate Data PRISM Climate Group Precipitation deviation from 30-year normals, August 1-9, 2022 Obtained From: https://prism.oregonstate.edu/mtd/ -------------------- Soil Moisture Data Topsoil Moisture Anomaly, 1km, Weekly, Year 2022, Week 29, July 18-24, 2022, Missouri and Illinois Topsoil Moisture Anomaly, 1km, Weekly, Year 2022, Week 30, July 25-31, 2022, Missouri and Illinois Topsoil Moisture Anomaly, 1km, Weekly, Year 2022, Week 29, July 18-24, 2022, Kentucky Topsoil Moisture Anomaly, 1km, Weekly, Year 2022, Week 30, July 25-31, 2022, Kentucky Topsoil Moisture Anomaly, 1km, Weekly, Year 2022, Week 31, August 1-7, 2022, Kentucky Obtained From: https://nassgeo.csiss.gmu.edu/CropCASMA/ -------------------- Land Cover Inputs NASS 2021 Cropland Data Layer (planted acres) Obtained From: https://croplandcros.scinet.usda.gov/ Disclaimer: These data are not official NASS estimates. -------------------- Official NASS Estimates 2021 Planted Acres Obtained From: https://quickstats.nass.usda.gov/ -------------------- Processing Software Hexagon ERDAS Imagine 2018 http://www.hexagongeospatial.com/ Esri ArcGIS 10.7.1 http://www.esri.com/ --------------------