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Flash Flood Warning issued July 29 at 6:11PM MDT until July 29 at 9:15PM MDT by NWS Grand Junction CO

8.0

38.8267° N, 109.1400° W·US-CO

Started 2h ago

Event Details

Typeflood

Severity8.0

Statusactive

Location38.8267°N, 109.1400°W (US-CO)

Started2026-07-30T00:11:00+00:00

Last Updated2026-07-30T02:40:16.795+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

2022 GRAND County, UTAH Flash Flood (2022)70% match

Flash Flood in UTAH, 46km from current event, $10M in recorded damage

GRAND County, UTAHDamage: $9.5M

2005 SC WASHINGTON County, UTAH Flood (2005)70% match

Flood in UTAH, 48km from current event, $300M in recorded damage

SC WASHINGTON County, UTAHDamage: $300.0MFatalities: 1

2021 GRAND County, UTAH Flash Flood (2021)68% match

Flash Flood in UTAH, 33km from current event, $500K in recorded damage

GRAND County, UTAHDamage: $500K

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

View on Live Map

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

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