NOAA National Weather Service Weather Forecast Office

Events/Deaths/Injuries: 1982-2007
33 Year Totals: 1974-2007
163 Year Totals: 1844-2007

Famous Tornado Outbreaks across the U.S.
Wisconsin's Costliest Tornadoes
Wisconsin's Deadliest Tornadoes
Longest Documented WI Tornado Tracks

U.S. Tornado Climatology / Information
(from the Storm Prediction Center (SPC))

Averages By State

Wisconsin Tornado Climatology / Information
(from our Severe Weather Awareness page)

Local Tornado Write-ups
(from our Documented Storms Page)

Tornado Information from the
National Severe Storms Laboratory

Events/Deaths/Injuries: 1982-2007

Hurricane Force Wind Events Across Wisconsin:

• 75 MPH or greater (graphic)
• 100 MPH or greater (graphic)
• Text write-up and listing of individual events (.pdf)
• Spreadsheet with graphs (.xls)

Local Straight-Line Wind Write-ups
(from our Documented Storms Page)

About Straight-line Winds

Damaging Wind Information from the
National Severe Storms Laboratory

Events/Deaths/Injuries: 1982-2007

About Hail Storms

How Hail Is Formed

Events/Deaths/Injuries: 1982-2007

Lightning Safety
Where Lightning Strikes!
About Lightning
Lightning Page from
National Severe Storms Lab

Events/Deaths/Injuries: 1982-2007

Average Annual Wisconsin Precipitation

About Floods And Flash Floods

Turn Around Don't Drown

Number of Heat Waves: 1982-2007
Number of Deaths: 1982-2007
Number of Days: 1982-2007

Wisconsin Heat Wave Site

National Heat Wave Site

U.S. Drought Monitor

Events/Deaths/Injuries:
1982-83 to 2006-07
   All Events
   Winter Storms
   Ice Storms
   Blizzards
   Yearly Average For All Events

Local Winter Storm Write-ups
(from our Documented Storms Page)

Biggest Snowstorms across the United States
Biggest Snowstorms across Wisconsin
Memorable Snowstorms in Milwaukee
Winter Storm Of 1881

Wisconsin Winter Awareness Page
National Winter Awareness Page

Events/Deaths/Injuries: 1982-2007  Apr-Sep
Total Weather Related Injuries: 1982-2007
Total Weather Related Deaths: 1982-2007

Analysis of Storm Initiation Times Across Wisconsin: 1982 - 2006

Excel Spreadsheet: Total Number Of Watches / Warnings Issued For Wisconsin: 1984-2003

Get Natural Hazard Statistics for
entire U.S., also broken down by state

Storm Data

These files are in "pdf" format.

What is Storm Data? Storm Data is a monthly publication that details any unusual or significant weather events that were reported to the National Weather Service. It includes (but isn't limited to) winter weather, severe thunderstorms, tornadoes, floods and high wind. All fatalities and injuries that are directly related to weather are included, as well as any weather that caused significant damage.
My roof was blown off in a thunderstorm. Why isn't that storm in the report? We probably did not receive the report. We will research storms (both during and after the event) through local newspapers, law enforcement and spotters. If the event was not reported to any of these organizations and you didn't report it to us directly, we probably didn't get it.
How long after an event is Storm Data available? At the end of each month, all of the events from the month are entered into a database. All of the reports are verified. Newspaper clippings are scoured for additional reports and clarification of known events. Then a final summary of each weather episode during the month is compiled. This process usually takes 1 to 2 months, depending on the weather during that season. Unfortunately, it can take even longer if an ongoing severe weather season does not allow the staff the time to compile Storm Data.
How can I get Storm Data for previous years? How can I get Storm Data for other areas of the country? How do I get a certified copy for a court case? Contact the National Climatic Data Center (NCDC). We cannot handle any of these cases locally.