Was my street in the Oct 1, 2026 Texas surge zone?

On Oct 1, 2026 the NWS issued Flash Flood Warnings for parts of east Texas (Cherokee and Smith counties, including Tyler), south-central Texas (Bexar county including San Antonio, Wilson and Atascosa counties), the Hill Country (Val Verde, Edwards, Real, Bandera, Kerr and Gillespie counties), and the Dallas–Fort Worth metro. Rainfall totals of 1 to 7 inches were reported across these areas. By evening, the San Antonio warning had expired but the Devils River (Val Verde County) was upgraded to MAJOR flood stage with a forecast crest near 18.3 feet at Bakers Crossing and Cauthorn Ranch, and the Llano River at Llano was forecast to crest at 12.8 feet late tonight (20.4 feet near Mason) — both warnings extended through Saturday morning. FloodLens maps any U.S. address against the official FEMA flood zone so you can see the mapped risk for your exact street.

What happened in the September 2026 Nor'easter?

On September 26–28, 2026 a Nor'easter brought storm-surge flooding to the Jersey Shore, Long Island, New York City and coastal Delaware, Massachusetts. Surf City, New Jersey saw about four feet of water in the streets, coastal flood warnings covered all of Long Island and Atlantic New Jersey, and states of emergency were declared in eight New Jersey counties. (weather.com, nypost.com, Sept 26–28, 2026.)

⚠️ LIVE STORM UPDATE · Oct 1, 2026

Flash floods are hitting Texas right now. Was your street in the water?

Q: Does one flood mean my home is in a FEMA high-risk zone?

Not necessarily — and the reverse is also true. FEMA flood zones are long-term risk maps, not records of which streets flooded once. A street outside a mapped high-risk zone can still flood from extreme rainfall, and a street inside one can go decades without water. The zone letter (A, AE, X, etc.) is what insurers and lenders use to price risk, which is why knowing your official zone matters even if your street 'never floods.'

On Thursday, October 1, 2026, the National Weather Service issued Flash Flood Warnings across Texas — from the Dallas–Fort Worth metro to the Hill Country to east Texas. Some areas saw 3 to 7 inches of rain in a single morning, with "life-threatening" language in the warnings. A stalled front near Austin and San Antonio could drop 5–10 inches more tonight.

If you live in Texas — or you're buying a home anywhere flood-prone — this is the day to know your official FEMA flood zone. Not the guess. The map.

🕗 Evening update — 8:00 PM ET

San Antonio metro: the Flash Flood Warning (Bexar, Atascosa, Wilson counties) expired at 7:00 PM CDT after 1–4 inches of rain and "life-threatening" flash flooding — numerous low-water crossings closed, Leon and Olmos Creeks rising. Travel was strongly discouraged across the metro this afternoon.
Devils River (Val Verde County): UPGRADED to major flood stage — forecast to crest near 18.3 feet this evening at Bakers Crossing and Cauthorn Ranch. The NWS warning language: "Massive flooding destroys anything in the flood plain." River warnings now run through Saturday morning.
Llano River at Llano: now forecast to crest at 12.8 feet late tonight (flood stage is 10.0 ft) — warning runs from late tonight to Friday evening (NWS Austin/San Antonio, 5:28 PM CDT).
Llano River near Mason: expected to crest at 20.4 feet late this evening (flood stage 18 ft) — comparable to the 21.4-foot crest of August 1978 (NWS San Angelo).

Sources: NWS Austin/San Antonio warnings via GovOneStop feeds (crawled Oct 1 evening); thetraveler.org. The flash-flood emergency has passed for San Antonio, but rivers are still rising — the mapped flood zone is the long-term story.

Check your address — free, plain English

Type any U.S. address. FloodLens pulls your official FEMA flood zone and tells you what the letter means for your insurance and your home's value. No account.

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The full 10-page report ($19) decodes the zone, typical insurance cost ranges, and the questions to ask your agent.

What the NWS reported today (verified)

East Texas (Cherokee & Smith counties, incl. Tyler): Flash Flood Warning through 6:30 PM CDT — 1–2 inches fallen, rates of 1–2 inches per hour.
San Antonio metro (Bexar, Atascosa, Wilson counties): Flash Flood Warning — "life-threatening" language; 1–4 inches fallen, low-water crossings closed.
Hill Country (Val Verde, Edwards, Real, Bandera, Kerr, Gillespie counties): Multiple warnings — 3–7 inches of rain in a single morning; runoff making Devils River and tributary crossings impassable.
Dallas–Fort Worth metro: Flash Flood Warning — up to 3 inches fallen across Dallas, Tarrant and Denton counties.
Tonight: the San Antonio Flash Flood Warning expired at 7:00 PM CDT — but the Devils River is now at MAJOR flood stage, cresting near 18.3 feet this evening (Val Verde County), and the Llano River crests at 12.8 feet late tonight (20.4 ft near Mason). Both river warnings run into Saturday morning. Florida Panhandle still sees 2–6 inches of rain Friday–Saturday.

Sources: NWS warnings via GovOneStop alert feeds, crawled Oct 1, 2026 (evening); texasstormchasers.com (Oct 1 update); caller.com (Sept 29); thetraveler.org (Oct 1). Last updated 8:00 PM ET, Oct 1, 2026 — conditions change; heed official alerts.

Questions everyone's asking tonight

What is a Flash Flood Warning?

A Flash Flood Warning is the National Weather Service's most urgent flood alert: flash flooding is ongoing or expected to begin shortly, typically within minutes to hours. It is more severe than a Flood Watch, which means flooding is possible but not yet occurring. If you are in one, the NWS guidance is blunt: "Turn around, don't drown" — most flood deaths happen in vehicles.

Was my street in the Oct 1 surge zone?

Today's warnings covered east Texas (Tyler, Jacksonville), the San Antonio metro, the Hill Country (Val Verde through Kerr counties), and DFW. But "warned area" is broad — your address's mapped FEMA zone is specific to your street. Check it free and you'll see exactly which zone letter FEMA assigned your property.

Does one flood mean my home is in a FEMA high-risk zone?

No — and the reverse is also true. FEMA flood zones are long-term risk maps, not a record of which streets flooded once. A street outside a mapped high-risk zone can still flood from extreme rainfall, and a street inside one can go decades without water. The zone letter (A, AE, X, …) is what insurers and lenders use to price risk — which is why knowing your official zone matters even if your street "never floods."

Will today's flooding change my flood insurance quote?

Insurers and lenders price off the official FEMA zone map, not the news. One storm doesn't rewrite your zone overnight — but repeated regional flooding is exactly what triggers FEMA map updates, and when a map is redrawn, quotes and lender requirements can change for entire neighborhoods. Check your zone now; that's your baseline before any revision.

What happened in the September Nor'easter?

On September 26–28, 2026, a Nor'easter slammed the Northeast with storm-surge flooding: about four feet of water in the streets of Surf City, New Jersey, coastal flood warnings across all of Long Island and Atlantic New Jersey/Delaware, and states of emergency in eight NJ counties. New York City, coastal Connecticut and southeast Massachusetts flooded too. (weather.com, nypost.com, Sept 26–28, 2026.)

The water recedes. The map stays.

Storms make headlines for a day. FEMA's zone map decides your insurance bill and your resale value for years. Know your letter before the next storm — or the next quote.

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Safety: if your area is under a Flash Flood Warning, stay out of floodwater, never drive through flooded roads, and follow local emergency guidance. This page is informational, not an official flood determination — FEMA's map and your local officials are the authority during an event.