an absence of flags,
it said on the sign … does not
assure safe waters

The lifeguards on Hilton Head Island fill out a message board with chalk at their lifeguard station listing current conditions.
Usually the board covers the basics, high tide, low tide, water temps and water conditions.
I grew up on the shore of Lake Michigan about seven miles south of the state park at Grand Haven.
On rough days, my Mom would have us call the state park and ask “What flag was out?”
The lifeguards at the state park had most of the same flags they fly down here in South Carolina.
Green flag meant safe to swim.
Yellow flag meant to swim with caution.
Red flag meant that that water was rough and swimming was not recommended.
We say thank you, hang up, yell “RED FLAG’ or what ever it was and then run off to go swimming.
When we were little kids, under the age of 10, my Mom made us wear life jackets.
Those old orange canvas ones with cloth ties that ate into your chin once the cloth got wet but when we got older we took our chances with the waves.
The temperature of the water in Lake Michigan was easy to find because The Grand Rapids Press displayed a horizontal thermometer in the lower right hand corner of the front page that showed the current water temp at Grand Haven.
We would get the paper about 4 o’clock in the afternoon and start screaming ‘the lake is at 72 the lake is at 72’ and we couldn’t wait to get to the beach.
We never stopped to think that that report was most likely 24 hours old and Lake Michigan water temps could drop 10 degrees in one hour if the wind shifted.
Nor did we ever think to get our own thermometer and put it in the water to see just how cold it was.
And it could get cold.
ACHING COLD my brothers called it.
Stick your feet in the water and in seconds they would be throbbing.
You just have to get used to it, we would say as we dared each to ‘duck under’.
We would wade out slowly, slowly as we eased our bodies into the water that was around 64 degrees.
It took a lot of effort to finally dive in and get it over with.

We had an old rowboat that we would paddle out into the lake where the water was over our heads and anchor it.
Lake Michigan was too rough to let a rowboat stay anchored off shore so we did this every day we went swimming.
Once the boat was anchored, we would flip it over and using it for a swimming platform.
When that boat flipped, anyone in the boat was going in the water and somedays, the water was so cold, that was the only way anybody was going to get wet.
I remember one day we flipped the boat over and the water was so cold, me and my brothers cambered over the side as it flipped and stayed out of the water and nobody was getting off into the water so we untied the anchor and drifted into shore.
It wasn’t until I started working in online news for WZZM13 in Grand Rapids that I really got into the mechanics of water temps.
The National Weather Service makes all of their data available to public for free, it is a service after all, if you can figure out what you need.
The file I needed was named something like metar/CONUS/MI_GL_watercond_temp.txt but once I got it, I was able to turn the data into a weather map with locations and temps and put it online.
This was back in the early days of the World Wide Web and nothing was ‘web ready’ and we created everything from scratch.
The file I found listed all the reported water temperatures at Michigan State parks on Lake Michigan from South Haven to Pentwater.
I was in the weather center chatting with meteorologist George Lessens and we got to wondering HOW the data was gathered and George picked up the phone and called the Grand Haven State Park.
He found out that at some point before 11 a.m. a park employee would take a thermometer tied to a rope and walk down to the water and toss the thermometer in and get a reading.
George asked, but no, there were no guidelines as to how long the thermometer should be left in the water or how deep it should be in the water or any instructions except to get a reading and call it in by 11 a.m.
It was, we decided, an inexact science.
Now I live a mile from the Atlantic Ocean.
The ocean is different from Lake Michigan.
It is warmer for one.
That’s just one, but it is a big one.
When I was a kid, we would get excited when the water in Lake Michigan was in the 70s.
Right now the ocean is in the low 80’s and it is wonderful.
The ocean also is saltier and I float so I swim better.
And there are … things in the water down here.
That is why where up north you have green, yellow and red flags, down here you have green, yellow, red, double red and purple flags.
A purple flag indicates that dangerous marine life, such as jellyfish, stingrays or man-of-wars are present in the water.
A purple flag can be flown with any other color.
I have yet to be bothered by any dangerous marine life since moving to the coast but I was bitten by dog in downtown Charleston.
The flag code comes down to this.
Safe to swim.
Use caution.
Swimming not recommend.
Do not swim.
Dangerous marine life.
You might think that this list should cover all the bases.
Yet today, Nick the lifeguard on duty, added a further note of caution.
On his notice board, Nick wrote, “Absence of flags does not assure safe waters.”
I like that.
Absence of flags does not assure safe waters.
I want that one a T Shirt.
That message would fit anywhere in the world not just the beach.
Just about the most right words for today I can imagine.
Always remember, an absence of flags does not assure safe waters.






