Current Severe Weather
- NWS Text Product Finder
A quick and easy way to find NWS text products if you know the product identifiers.
- Web iembot monitor
This fancy application allows you to monitor text products coming from your local NWS office or the entire nation in realtime!
- Current NEXRAD Storm Attributes
Point shapefile generated every minute containing a summary of NEXRAD storm attributes.
- Convective Watches Overview
10 maps of the last locations of convective watches issued by SPC.
GIS Local Storm Reports
- 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.
- Download Archived LSRs
Generate a shapefile of LSRs for a period of your choice dating back to 2003!
- Current Shapefile
A shapefile of active county based and storm based based weather warnings. This file is updated every 5 minutes.
- Download Archived NWS Warnings
Generate a GIS shapefile of weather warnings for a time period of your choice!
Apps with Statistics
- Summary of Polygon Sizes
View storm based warning size summary statistics by WFO for a period of your choice.
- Top 10 Polygon Sizes
List top 10 largest and smallest storm based warnings by WFO.
- Top 10 SPC Mesoscale Convective Discussion Sizes
List top 10 largest and smallest polygons associated with SPC MCDs.
- Days since VTEC WWA Product
Generates a map of the number of days since a VTEC WWA Product.
- VTEC Events by WFO or State by Year
Simple table listing any VTEC events by a given WFO or state for a given year.
- Maximum VTEC EventID (ETN) by year
This diagnostic prints out the maximum issued VTEC eventid (ETN) by year. A useful diagnostic for a NWS Office wishing to check their local VTEC eventd database.
- Tornado + Flash Flood Emergencies listing
Simple table showing IEM indicated Tornado and Flash Flood Emergency events.
- Yearly counts of VTEC Products
Generates a table of the number of VTEC products issued by year.
Apps with Archives
- IEM Cow
Unofficial NWS storm-based warning verification.
- IEM Raccoon
Generate Microsoft Powerpoint overviews of storm based warnings.
- Search by County/Zone or Point
Find archived warnings by searching for a county or zone. You can also search for storm based warnings by a point.
- Storm Prediction Center (SPC) Watches since 1997.
Maps of SPC issued watches and initial RADAR (since 1997) at watch issuance.
- Nationwide Weather Warnings.
Popular web mapping application showing all sorts of information relating to severe weather. Works great for situational awareness displays.
- VTEC product browser
Popular application that allows you to navigate thru an archive of weather warnings. Full text is displayed along with the maps.
- MidWest Composite w/ warnings
- US Composite w/ warnings
- Storm Based Warnings: daily summary images, images displaying sbw for a given date.
Severe Weather Outlooks
The IEM attempts to main a realtime ingest of the Storm Prediction Center convective outlooks. This comparison is a simple visual diagnostic between the two.
Current Day 1 Outlook
Current Day 2 Outlook
Current Day 3 Outlook
Current Day 4-8 Outlook
WPC Excessive Rainfall Outlooks
The IEM attempts to main a realtime ingest of the Weather Prediction Center rainfall outlooks. This comparison is a simple visual diagnostic between the two.