Presentations & Docs:

• 28 Jul 2003: NEXRAD + Mapserver HOWTO
  A HowTo on generating NEXRAD composite images with GEMPAK and serving them out with Mapserver.
• IEM Presentation Archive
  The IEM has given a number of GIS related talks. You can browse an archive of presentations.
• IEM RASTERs Lookup Tables
  Metadata on how you can convert IEM produced RASTERs into actual values!

Web Applications:

• NEXRAD w/ warnings
• COOP Daily Extremes and Averages
• Dynamic Plotting
• IEM Site Locator
• NEXRAD Mosaic by Year
  Displays NEXRAD mosaicked base reflectivity for a user specified sector for the same time each year going back to 1995.

Links:

• US Drought Monitor GIS data
  Download current and historical drought monitor products in GIS formats
• NCDC Severe Weather Data Inventory
  A tremendous website with lots of hard to find data!
• GIS Severe Weather reports
  Archive of NCDC provided storm reports (1950-)!
• NCDC GIS Portal
  National Climate Data Center GIS goodies
• NCEI's Display and Conversion Tools.
• NSSL Google Earth Data
  Weather data integrated into Google Earth!
• Oregon State PRISM
  These folks provide nationwide GIS ready datasets of climate data. Their site is outstanding!
• USDA PRISM data page (GIS Climate Data).
• Iowa Natural Resources Geographic Information System (NRGIS)
• NOAA's Ken Waters work with GIS and NWS warnings
  They have some historical GIS datasets of warnings too.
• Index to Degree-Day Data
• NASA MAP'06 program
  Has some GIS satellite data.

You may have noticed this image appearing on IEM webpages. It signifies that the data link is ready for most GIS systems.

IEM GIS Projects

• Grib to GeoTIFF Service
  Provides various archived grib files in a GeoTIFF format.
• GOES Satellite GIS Products
  Current and archived GIS products from NOAA's GOES satellites
• Open GIS Web Services
  A listing of OGC web services offered by the IEM
• Iowa Climate Summaries
  GIS ready data files of monthly and yearly climate summaries dating back to 1951.
• IEM Freeze
  Web mapping application to support winter weather nowcasting.
• IEM Radview
  Our effort to provide NEXRAD information in realtime to GIS systems.
• IEM Rainfall
  Gridded rainfall estimates in GIS formats dating back to 2002 for Iowa.
• IEM Iowa Road Conditions
  Current and archived Iowa road conditions.
• IEM Cow
  Unofficial NWS polygon warning verification.
• NEXRAD Mosaic on the IEM
  Information about the NEXRAD Mosiac that the IEM generates.

GIS Shapefiles:

• SPC Mesoscale Discussion Shapefile Download
• SPC/WPC Outlook Shapefile Download
• SPC Watch Polygon Shapefile Download
• Past 24 hours of Storm Reports
  ESRI Shapefile, Comma Delimited, GeoJSON
  The IEM parses the realtime feed of NWS Local Storm Reports. Every 5 minutes, a process collects up the last 24 hours worth of reports and dumps them to the above files.
• Archived Local Storm Reports
  Generate a shapefile of LSRs for a period of your choice dating back to 2003!
• Current NWS Warnings
  A shapefile of active county based and polygon based weather warnings. This file is updated every minute.
• Archived NWS Warnings
  Generate a shapefile of weather warnings for a time period of your choice!
• Current NEXRAD Storm Attributes
  Point shapefile generated every minute containing a summary of NEXRAD storm attributes.
• Archived NEXRAD Storm Attributes
  Generate a shapefile of storm attributes for a RADAR and time period of your choice from the archive.
• NWS COOP Observations
  Today's climate reports
• Special Weather Statement (SPS) Polygons
  Shapefile download of SPS polygons and IBW tags.
• Browse GIS data stored on the IEM website.
• WPC Precip Discussion MPD Polygon Shapefile Download