Flood risk snapshot · Sayreville, NJ

More for New Jersey: Highest flood risk cities · New Jersey live outlook

Current risk outlook

Flooding and heavy rain risk for Sayreville, NJ.

Live conditions updated just now. Refreshes every 5–40 minutes.

This view focuses on street flooding, ponding in low-lying areas, and how heavy rain tends to behave around this city.

Live risk outlook

MODERATE

Moderate

Next 6–24 hours: Today: Moderate (46/100) · Rain 69% · 0.3 in · Max wind 5 to 10 mph.

4 active alerts nearby.

Sources: NOAA, NWS, SPC, NHC, FEMA, USGS.

Historical risk score

Long-term baseline derived from historical hazard activity.

22

/ 100

Flood risk score22/100

For typical homes located in Sayreville, NJ.

Baseline context

FEMA NFHL flood zones: 9 features intersect this tile.

Local historical hazard map

Sayreville, NJ

Historical baseline tiles

Click a tile to update scores. These layers show long-term historical baseline risk, not live warnings or short-term forecast risk.

Live flood alerts & official forecast (NWS)

Forecast office: PHI · radar KDIX

Active alerts near Sayreville

Flash Flood Warning

Effective local time

Flash Flood Warning issued August 27 at 1:07PM EDT until August 27 at 5:00PM EDT by NWS Mount Holly NJ

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles.

Severe Thunderstorm Warning

Effective local time

Severe Thunderstorm Warning issued August 27 at 1:06PM EDT until August 27 at 1:30PM EDT by NWS Mount Holly NJ

For your protection move to an interior room on the lowest floor of a building. Torrential rainfall is occurring with this storm, and may lead to flash flooding. Do not drive your vehicle through flooded roadways.

Severe Thunderstorm Watch

Effective local time

Severe Thunderstorm Watch issued August 27 at 12:51PM EDT until August 27 at 8:00PM EDT by NWS Mount Holly NJ

Flood intelligence snapshot

FEMA flood zones (NFHL)

No FEMA zones returned for this tile.

NFHL features in tile: 0

Tile risk label: Minimal

Source: FEMA NFHL (MapServer).

Nearest river gauge (USGS)

No nearby USGS gauges reporting right now.

Source: USGS NWIS (instant values).

Soil saturation (model)

Soil moisture: 34% volumetric

Last 24h rain: 0.06 in

Updated: local time

Source: Open-Meteo soil model (proxy).

5-day flood & rain outlook

Today

MODERATE

Rain chance: 69% · 0.3 in

Max wind: 5 to 10 mph

Risk score: 46/100

Tomorrow

LOW

Rain chance: 40% · 0.0 in

Max wind: 0 mph

Risk score: 26/100

Sat

LOW

Rain chance: 2% · 0.0 in

Max wind: 0 to 5 mph

Risk score: 11/100

Sun

LOW

Rain chance: 12%

Max wind: 0 to 5 mph

Risk score: 15/100

Mon

LOW

Rain chance: 29%

Max wind: 5 mph

Risk score: 22/100

Outlook blends NWS forecast, WPC QPF totals, and Excessive Rainfall Outlook categories.

Historical flooding exposure

Local flood data facts

NFHL features in this tile0
Soil moisture (topsoil)34% · 0.06 in rain

Data from FEMA NFHL, USGS gauges, and Open-Meteo soil moisture.

Historical flooding exposure in Sayreville

  • Lowest-lying streets and drainage chokepoints tend to flood first during heavy rain.
  • Long-duration rainfall can raise ponding risk even without a named storm.
  • Local elevation and canal/river networks can amplify or reduce flood impacts.

Flood & storm risk FAQs for Sayreville

Does Sayreville flood often?

Flooding risk depends on elevation, drainage, and rainfall intensity. This model summarizes localized flood patterns from public datasets.

What causes street flooding without a storm surge?

Short bursts of heavy rain can overwhelm drains; longer events can saturate soils and keep water standing even after rain ends.