≋floodactive

Flash Flood Warning issued August 3 at 6:49AM EDT until August 3 at 10:00AM EDT by NWS Boston/Norton MA

8.0

42.5580° N, 71.9240° W·US-MA

Started 2h ago

Event Details

Typeflood

Severity8.0

Statusactive

Location42.5580°N, 71.9240°W (US-MA)

Started2026-08-03T10:49:00+00:00

Last Updated2026-08-03T13:20:50.023+00:00

Sourcenoaa_ahps

Source URLapi.weather.gov

Confidence1.00

Impact Zones

Catastrophic Impact Zone

Flash flooding or major flood stage. Immediate danger to life and property.

NWS polygon

Zone estimates are based on scientific models and may differ from actual local conditions.

Impact Analysis

Note: Zone 1 uses NWS polygon geometry. Exposure for this zone is pending polygon-based computation — totals reflect outer zones only.

Population from ACS 5-Year 2022 tract sampling; structure counts from Microsoft Building Footprints or Census ACS housing data, capped by USGS NLCD 2021 developed land. Estimates for situational awareness — not for actuarial, regulatory, or underwriting use.

Historical Comparison

2010 WORCESTER County, MASSACHUSETTS Flood (2010)72% match

Flood in MASSACHUSETTS, 19km from current event, $3M in recorded damage

WORCESTER County, MASSACHUSETTSDamage: $2.7M

2007 WORCESTER County, MASSACHUSETTS Flood (2007)71% match

Flood in MASSACHUSETTS, 10km from current event, $500K in recorded damage

WORCESTER County, MASSACHUSETTSDamage: $500K

2021 CHESHIRE County, NEW HAMPSHIRE Flash Flood (2021)70% match

Flash Flood in NEW HAMPSHIRE, 28km from current event, $617K in recorded damage

CHESHIRE County, NEW HAMPSHIREDamage: $617K

Historical comparison based on peril type, geography, and severity. Past events do not predict future outcomes.

View on Live Map

US-MA flood hazard profile All US hazard profiles Scoring methodology

Zone estimates are based on scientific models and may differ from actual local conditions.