Every year, I have an ice fishing spreadsheet that gets reused to estimate ice thickness based on a two-week lookahead weather forecast.
Starting around Thanksgiving (and earlier, if the evidence supports it), there's a high-low forecast entry for weather, and columns for notes on the local lakes (they freeze in a sequential order). Once a lake is noted as partially frozen over, the forecast is used to estimate when there will be walkable ice (4" thick), ATV-supporting ice (6-8" thick), or truck-supporting ice (12"+). Once a week, the update includes a review of the actual high-low temperatures from the week prior and any updates to the future forecast.
Haven't gone through the ice yet from it.
Some years, I've been out fishing as soon as November 10, and one year had only 10 days of walkable ice all winter.
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Joseph M. Rozmiarek, P. E., M.ASCE
President and Chief Engineer
Marine on Saint Croix, MN
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Original Message:
Sent: 01-29-2026 12:56 PM
From: Christopher Seigel
Subject: The weirdest spreadsheet you've ever made?
A friend recently told me he might need to start a list of... all the dead people he knows.
Dark? Yes.
Organized? Also yes.
That got me thinking about some of the more fun spreadsheets I've made over the years.
One of my personal favorites:
I ranked the food I ordered through the Too Good To Go food waste app. (If you don't use this app yet, consider checking it out.)
Since you never really know what you're going to get, I started tracking the following stats from each food place I'd use the app at:
After a few orders, I basically had a data-driven leaderboard of surprise leftovers.
What's the weirdest, funniest, or most unexpected spreadsheet you've ever made?
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Christopher Seigel P.E., M.ASCE
Civil Engineer
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