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If more than one name is in common use, that used by NOAA or an official weather agency should take precedence except in extraordinary circumstances, with any other names a redirect. Example: 1980 Grand Island tornado outbreak
If more than one event share the same name (even if the other event may not have its own article), precede the accepted name with the year (or, if needed, the month/date). The accepted name should serve as a disambiguation page. Example: Palm Sunday tornado outbreak
If there is no accepted name, the name should be formatted as follows:Year (or Month/year, or day/month/year if need be) Geographic location (only if necessary: City, State, Country, Continent, or any combination of these) tornado, tornado outbreak, or tornado outbreak sequence. Examples: January 2008 tornado outbreak sequence, May 1-2, 2008 tornado outbreak, or 2007 Brooklyn tornado
As a general rule of thumb, use these criteria for creating articles on tornadoes. "Gray area" articles should be discussed on the articles talk page, or on the WP:Severe talk page.
Any (E)F5 tornado, provided enough information can be written
Any (E)F2 or stronger tornado in a major city
Tornado/outbreak causes multiple fatalities
40 or more tornadoes in the outbreak with no fatalities (unless a quick spin-up event)
25 or more tornadoes in the outbreak with at least one fatality
Any tornado/outbreak that produces at least $250 million in damage
Other non-tornadic events occurring with the outbreak that "help" to make it notable (like a winter storm, derecho or hail storm)
Any outbreak that does not meet the above rules, but has some kind of significant historical standing. (Gray area)
Note on units: All quantities should be expressed in both imperial and metric units, regardless of the affected area. The primary measurements used in this project are imperial units, although primary-metric can be used in events that only affect regions that use only the metric system (i.e. Canada, Mexico, most of Europe). For example, to show winds of 50 mph, it should be listed as "50 mph (80 km/h)" in most circumstances. Rounding should be done to reasonable levels.
Note on galleries: It is not desirable to have an image gallery in a main article. However, linking to a gallery on Wikimedia commons using ((commons)) is very helpful. To upload a file to the Commons, click here (you must create/have a commons account to do this). For instructions on creating a commons gallery, see here.