IEM LSR App

Filter by:

NWS Forecast Office

State

WFO:

State:

Start Time:

End Time:

Auto-Refresh

Map Settings

Base Map:

Overlays:

NEXRAD Reflectivity

US States

US Counties

Local Storm Reports

Use Icons (instead of Magnitude)

Storm Based Warnings

Layer Opacity:

NEXRAD:

Storm Reports:

Warnings:

RADAR Time:

	WFO	Time	Type	Magnitude	City	County	State

		WFO	Phenomena	Significance	Event ID	Issue	Expire

Welcome to the IEM Local Storm Report (LSR) App! The old version of this app is still available for use, but this new version is the way forward. It is built using modern web technologies and is designed to be mobile friendly.

Please provide feedback on this app. It is a work in progress and your input is valuable.

This app displays National Weather Service (NWS) Local Storm Reports (LSR)s for a given time period of your choice. Additionally, NWS Storm Based Warnings (SBW) are also displayed for events Issued between the start and end time of your choice.

Web Services

This app uses to main GeoJSON web services to provide the data displayed here. LSR and SBW. You are welcome to use these services in your own applications.

URL Parameters

You can use the following URL parameters to customize your experience:

by: Filter by either "wfo" (default) or "state".
wfo: Comma-separated list of WFOs to filter by.
state: Comma-separated list of states to filter by.
seconds: Puts the app into an auto-refreshing mode that loads the previous number of seconds worth of LSRs and warnings issued.

Changelog

2025-05-21: Initial release.