Mystery Cache

Iowa Tornado History

A cache by Team_Schnauzer Send Message to Owner Message this owner
Hidden : 7/4/2012
In Iowa, United States
3.5 out of 5
2 out of 5

Size: Size: micro (micro)

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Geocache Description:

The cache is NOT hidden at the listed set of coordinates.

You will have to solve the puzzle by answering the following questions in order to find the final location of the cache.


As many of you know, tornadoes are common in Iowa and can happen any time of the day and any month during the year. History proves that this has happened. Though the prime time for tornadoes is between 3-7 pm and typically happen in May and June, they have occurred at other times.

Though records don't date back all the way to when Iowa became a state, data has been kept pretty regularly since 1950. There is one really good website that keeps track of tornadoes all across the United States. They have done a nice job keeping records on Iowa. You may find this website at:

By going to this webpage you will be able to gather the information that you need in order to solve this mystery puzzle.



Here are the questions that you'll need to answer:

A) On September 1, 1961, a fairly strong tornado hit Butler County. What was the F-rating (e.g. F0, F1, F2... etc) of this tornado?

B) On March 22, 1991, three tornadoes struck Hardin County. One of them was an F1, another was an F3 and what was the strength of the other tornado (again, F-rating)?

C) The most powerful tornado in Iowa history (perhaps in American history) oblitterated the community of Jordan in Boone County on June 13, 1976. It had the highest Fujita rating a tornado can have. Dr. Theodore "Ted" Fujita modeled his F-Scale after this tornado. He believed that the winds in this tornado may have been in excess of 400 MPH. It was also unique in that it's rotation was anti-cyclonic. What was this massive tornado's F-rating?

D) Two tornadoes struck Tama County on this day of November in 1975, having Fujita ratings of F1 and F3. What day in November did this happen?

E) A powerful F4 tornado struck the community of Manson in Calhoun County on June 28, 1979. How many people were killed by this tornado?

F) 1978 was a particularly bad year for tornadoes in Iowa. On September 16 a strong tornado injured a large number of people in Poweshiek County, killing 3. How many people were injured by this tornado? (two digit number - add the two digits together to get the answer)

G) Since records were kept in 1950, how many people died as a result of a tornado in Story County?

H) On perhaps the worst single tornado day in Iowa history (May 15, 1968), the community of Charles City was devestated by a large F5 tornado, killing 13 and injuring 450. Just moments after that tornado struck Charles City, a second tornado of F5 intensity was formed in an adjacent thunderstorm. This storm tore through Fayette County, doing major damage to the communities of Maynard and Oelwein. How many people were killed that day in Fayette County? (take this number and add 1)

Thanks for taking the time to complete this puzzle! Hope you enjoyed learning just a little bit about the history of tornadoes across our state!

D/T Rating

The terrain rating is 2. The difficulty rating of 3.5 reflects the difficulty of the puzzle and the hide. We believe the hide alone has a rating of 2/2.

You can check your answers for this puzzle on

Additional Hints (Decrypt)

Gur svany ybpngvba vf nqwnprag gb n pbhcyr bs ohfl ebnqf. Qba'g nggrzcg guvf sebz gur ohfl ebnqf. Cyrnfr hfr gur npprff ebnq gb ernpu gur svany. Fgnl njnl sebz gur srapr.

Decryption Key


(letter above equals below, and vice versa)



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Current Time:
Last Updated: on 2/2/2017 2:12:02 PM (UTC-08:00) Pacific Time (US & Canada) (10:12 PM GMT)
Rendered From:Unknown
Coordinates are in the WGS84 datum