You go looking for your own hail history and the first thing the search wants is a county. Most people here pick Dallas, because that's the name attached to Rowlett almost everywhere you look, and for a good share of the city it's the right answer. For the rest of the city it isn't. Rowlett's limits cross a county line, so an honest evening of reading can land you in a record that has nothing to do with your roof, and nothing on the page you're reading will tell you that. Your address decides your county, and settling it takes about two minutes. Once it's settled, the dates you're looking at are actually about your house.
Rowlett runs across a county line
The city covers about 22 square miles, and those limits fall in two counties. The bigger share of town is on the Dallas County side, so Dallas County is the name you'll see beside Rowlett most places. The eastern side of the city runs into Rockwall County.
The City of Rowlett is the source for that, and it publishes it on its own site.
That's not a piece of trivia about the town. It decides which weather record describes your street, which county name turns up on paperwork about your house, and whether a date somebody hands you has any bearing on your roof at all.
Why hail history is filed by county in the first place
The national storm database is built county by county. A hail report carries a date, a stone size, a spot where somebody saw it, and the county it came down in. A wind report carries a speed instead of a size and is otherwise the same shape.
So when you pull a history, you're not pulling your address. You're pulling a county, and everything filed under the county next door stays out of the answer entirely. Get the county right and the record is complete for where you live. Get it wrong and you're reading real weather that happened to other people.
The record published on our own Rowlett storm and hail page is the Dallas County one, newest rows at the top, because that's where most of the city sits. If your address is on the Rockwall side, read that page as the neighbor's record and go get your own.
The entry most people around here already know is filed exactly the same way. The tornado that crossed Sunnyvale, Garland and Rowlett in December 2015 was rated EF4, ten people were killed, and it still stands as the deadliest December tornado on the Dallas County record. That last phrase is doing real work: it's a Dallas County line in a Dallas County file, and it's part of why the county name got attached to this whole town by default.
There's a second thing the county filing does that's easy to miss. The place name on a report is wherever somebody happened to be standing when they saw the stone come down, so the rows fill up with neighboring towns, an airport, a road junction. Your own city name might not appear in a single line of a season that hammered your street. That absence is a fact about who reported, not about what fell.
How to settle which county your address is in
The shortest road is the city itself. Which county a Rowlett address sits in is a question it gets asked often enough to have written the answer down, and the city's own mapping is what settles a particular street instead of anybody reasoning from where they think the line runs.
Your own paperwork says it too, and you may not have to go looking. The deed, the closing file and the property tax statement all name a county, and it's the same county the storm database files your address under. If any of those are in a drawer in your house, you already have the answer sitting there. Sending you off to dig through a closing file is a strange errand when the roof is the thing on your mind, and we wouldn't ask it if the wrong answer were harmless.
Three things that don't settle it: your ZIP code, the city printed on your mail, and which side of a particular road you're on. A ZIP is a mail route and a county is a jurisdiction, and neither one is drawn from the other.
Roads are the one that catches people. A single road through this part of town can carry one county on the left and a different county on the right along part of its length, then the same county on both sides for the rest of it. So a street name works as a rule of thumb right up until you're on the blocks where you actually needed it to work.
When you've got it, write it down somewhere you'll find it again, next to the year the roof went on. Those two facts sitting together, your county and your roof's age, are most of what anybody needs in order to tell you whether a storm from three springs back is worth chasing or not.
What's already been settled around town
Four of the areas with their own page here come back Dallas County against the city's mapping: Downtown Rowlett, Kenwood Heights, Waterview and Vue Du Lac. Waterview is the one worth naming, because it sits on the east side of town and the east side is where Rockwall County starts. It comes back Dallas anyway. Vue Du Lac is the closest of the four to the line and it comes back Dallas as well.
Bayside and Sapphire Bay are the real exception. The city describes that site, roughly 117 acres on the peninsula south of I-30, as being in the City of Rowlett, Dallas County and Rockwall County, Texas. Both counties, one development. Out there the answer to which county am I in genuinely depends on the lot.
Rowlett Roofworks checked every one of those against the city's own mapping instead of assuming, and that's the only reason any of them are stated here. If you want to see which part of town yours falls in, the five areas are laid out on the service areas page.
What the right record tells you, and what it doesn't
Get the county right and you've still got a county-sized answer. A line in that file says a stone of that size was seen somewhere inside the county lines on that day. It doesn't put the stone on your street, and it doesn't rule your street out either.
What the record is genuinely good for is dates. It narrows a whole spring down to two or three specific afternoons, and walking into a conversation holding those dates is a different experience from walking in with a vague feeling that there was some weather.
Everything after that gets decided up on the roof: whether the mat under the granules is bruised, whether the slopes facing the storm track came off worse than the rest, whether what's up there is from this year or from four springs ago. What hail actually does to a shingle covers the physical side of it, and it's mostly a story about damage that doesn't announce itself from the yard.
The wrong county bites in three fairly ordinary ways. You compare notes with somebody a few streets over who turns out to be on the other side of the line, your two files don't agree, and one of you decides the other has it wrong. Somebody quotes you a big hail day that was filed next door. Or you go looking for a storm you clearly remember, find nothing, and conclude it can't have been bad enough to matter, when it was sitting in the other county's file the whole time. If you've already spent an evening reading the wrong file, you didn't do anything careless. Finding out now is a great deal easier than finding out partway into a claim.
Our roofers go up and read the slopes. A county file can't tell you what's on yours.
When a letter names a county
Counties turn up on paper as well as in databases. A carrier's letter, an adjuster's write-up or a contractor's report can cite a county storm record as the reason a particular date matters, and which county got named changes what the rest of this page means for you.
If the county named isn't the one your address sits in, those dates were logged somewhere else. That doesn't settle anything on its own. It's a fair question to ask out loud, and an easier one to ask early than after the file has grown long. How a roof claim runs here covers the order the rest of it goes in, and the claim stays yours throughout.
None of that is an accusation about whoever wrote the letter. Citing a county storm record is the normal way this gets done, and Dallas County is a reasonable default to reach for beside a Rowlett address. It's a default though, and it's the wrong one for part of this city.
If your county is settled and you're now looking at a date or two you'd like explained, tell Rowlett Roofworks the address and whatever you remember about the storm. Our roofers go up, walk the roof, and write down what's actually there and what it would take to put right, itemized and at no charge. You keep that write-up whichever way it lands.
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