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Read. Understand. Apply.
The Warn Room blogs apply 70 years of research to the practice of alerts and warnings. We show how evidence-based changes to message content, style, and structure can create more effective warnings.


5 types of Shelter in Place warnings
I recently heard a podcast where the guest described "common knowledge." They explained it this way: you know that I know, and I know that you know, and you know that I know that you know, and I know that you know that I know. Stated more simply: we all know something and we know that everyone else knows that same thing. And this is important when thinking about how we describe actions in warning messages. Not everything is common knowledge. In fact the words that you c

Jeannette Sutton
3 days ago


Flood Warnings and Technical Language
Much of the time that I have written about language inconsistency and the use of jargon in messages, it has been focused on WILDFIRE. Many previous posts to the Warning Gallery have pointed to the use of operational and technical language (Level 1, Level 2, and Level 3 or Ready status, Set status, Go status) that has more meaning to responders and commanders than to the public. In fact, we’ve published about the use of inconsistent language in the National Fire Protection A

Jeannette Sutton
Dec 12, 2025


Evacuation Orders are used for Floods too
We like to highlight good messages and this Evacuation Order for flooding hits most of the marks. Issued by the Sonoma County Sheriff's...

Jeannette Sutton
Feb 7, 2025


Should I send a WEA for a weather event?
Sheriff's WEA issued on 6/29/2023 (click image to enlarge) The National Weather Service has the authority and responsibility to issue...

Jeannette Sutton
Jun 29, 2023


Standardizing a flood warning
WEA issued 3/14/2023 Wireless Emergency Alerts for flood and some other severe weather events are officially the domain of the National...

Jeannette Sutton
Mar 14, 2023
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