Burst Pipes Show Up During the Thaw, Not During the Freeze
In January 2025 the boil-water notices and the sewer overflow came days after the cold night. What to do in the first fifteen minutes, and what not to do at all.
The cold night is not the emergency. The morning after is. When the arctic air moved through Baldwin County on January 21 and 22, 2025, the visible failures did not arrive with it — North Baldwin Utilities issued its boil-water notice on the 23rd, citing excessive leaks detected after extreme winter weather "followed by thawing," and a damaged lift-station control panel in Foley produced a sanitary sewer overflow of 10,000 to 25,000 gallons on January 26. Four days after the cold.
Household plumbing behaves the same way, and it catches people who thought they had gotten through it.
Why does the pipe break after the cold is over?
Because the ice is the plug as well as the cause.
When water freezes inside a line, it expands, and the pressure builds between the growing ice and the closed faucet at the end of the run. Something gives — usually a split along the pipe wall or a joint pulled apart — and while the ice is still solid it sits in that split like a cork. Nothing leaks. The house looks fine.
Then the sun comes up, the temperature climbs through the thirties, the plug melts, and the line is suddenly open at full pressure into an attic, a wall cavity or a crawlspace. That is why the damage curve lags the temperature curve by half a day to several days, and why utility crews across the region spend the warming period chasing failures. During the December 2022 freeze, a Mobile-area water-system worker described going nonstop for three days shutting off broken services — that was after Christmas, not during the coldest morning.
What January 2025 actually looked like here
Measured lows in Baldwin County on January 22, 2025: 13°F at Foley, 12 to 14°F at Fairhope, 16°F at Gulf Shores. Mobile Regional Airport hit 6°F and took 7.5 inches of snow, an all-time record. Foley itself measured about 8 inches of snow, and lows across the region ran more than 21°F below normal for that stretch. Baldwin County Schools closed for the entire week, and the superintendent told reporters plainly: "I am certain we will have some busted pipes."
For context on how unusual that is: at the Foley coordinate in calendar year 2025, 17 days fell to or below 32°F, nine to or below 28°F, and three to or below 20°F, with a coldest reading of 11.2°F. Summerdale also logged three sub-20°F days that year, at 10.6°F. So over an entire year of measurement, the number of nights capable of producing what happened that week was three.
Three nights. That is the whole risk, and it is why prep is cheap and reaction is expensive. It is also why so little Gulf Coast housing is built for it — the subdivisions off Hwy 59, out toward Graham Creek Estates and Liveoak Village, were designed around ninety-degree Augusts, not around three nights in the teens.
The first fifteen minutes
- Shut the main. Not after you find the leak — before. Every minute at line pressure is more water in the structure. If your main shutoff valve will not close, call your water utility and ask them to close it at the meter; the street valve takes a special tool and is not a homeowner job.
- Stay out of standing water near anything electrical. If water is running through a ceiling near light fixtures, or has reached a panel, an outlet or an appliance, kill the relevant breakers from a dry position or leave the area and call.
- Open faucets, lowest fixtures first. Once the main is closed, opening taps drains the remaining pressurised water into the sink instead of into the wall.
- Photograph everything before you move it. Standing water, wet insulation, the split itself if you can see it. Ten minutes of photos is worth more to a claim than an hour of explanation later.
- Then call. With the water off, the situation is stable and the next decision can be made properly rather than in a panic.
Frozen but not burst yet: how to tell, and what to do
The tell is simple. If a fixture gives you nothing, or a thin sputter that will not build, there is a plug somewhere upstream of it. If other fixtures in the house run normally, the plug is in the branch line serving that one — usually the run closest to an exterior wall, an attic space or a crawlspace.
Thaw it gently and from the fixture end backwards, so meltwater has an open path out. Hair dryer on low, warm towels, a space heater at a safe distance. Open the affected faucet first. Never a torch.
And watch it while it thaws. That is the moment the split, if there is one, will show itself, and you want to be standing next to the shutoff when it does — not finding out at dinner.
The failures that surface a week later
Not everything announces itself in the first hour. Three things routinely turn up afterwards, and all three are worth checking deliberately.
A slow leak with no visible water. A hairline split in a line inside a wall or under a slab can weep for weeks before it stains anything. The signs are a meter that creeps with everything closed, a warm spot on a floor, a section of yard that stays wet, or a bill that jumps for no reason. That is hidden-leak territory and it is what leak detection equipment is for — finding it without opening walls at random.
An electric water heater with no hot water. If the tank drained or air-locked while the elements were energised, an element can fail almost instantly. No hot water after a freeze, with the breaker on and the tank full, points straight at that.
Drains that got slower. A sewer or drain line that shifted, or a cleanout cap that cracked, will not show up until the next heavy use. If everything is draining worse than it did in December, that is a sewer line question rather than a coincidence.
If a boil-water notice covers your address afterwards, the recovery steps — aerators, filters, ice, flushing the tank — are set out in what to check before you use the water in a house that sat empty. The same procedure applies whether the pressure loss came from a storm or from a freeze.
When to call, and what happens then
Call while the water is still off. We answer around the clock at (251) 423-7654 — emergency plumbing for anything actively running, and water line repair once it is stopped and the question is what has to come out. Brandon Byrd, Alabama Master Plumber MP-4462.
If you are not sure yet whether what you have is urgent, the plumbing symptom checker will take a symptom to a likely cause and an urgency level in about a minute. And the reason southern houses fail at temperatures northern houses shrug off — attic runs over a slab — is in the burst threshold piece. Out along Hwy 59 and the farm roads east of it, those attic runs are the norm rather than the exception.
Sources. North Baldwin Utilities boil-water notice, January 23, 2025, and lift notice, January 29, 2025. Riviera Utilities sanitary sewer overflow report, Foley lift station, January 26, 2025. NWS Mobile January 2025 snow event page and January 2025 climate summaries, including Baldwin County measured lows and snowfall totals. Baldwin County Schools superintendent quotation via WKRG, January 2025. Mobile-area water-system worker quotation, WPMI/NBC 15, December 2022. Foley and Summerdale freeze-day counts and minimum temperatures: per-coordinate ERA5-Land daily reanalysis via the Open-Meteo archive, calendar year 2025 — a single year of measurement, not a climate normal. Street-valve guidance from Ready.gov, "Safety Skills."
