Skip to contentCALCHIS
≋floodactive

Flash Flood Warning issued September 28 at 6:20PM PDT until September 28 at 9:15PM PDT by NWS Las Vegas NV

8.0
34.7250°N, 115.4488°W·US-CA
Started 2h ago
NWS flood alerts data as of
Event Details
Typeflood
Severity8.0
Statusactive
Location34.7250°N, 115.4488°W (CA)
Started2026-09-29T01:20:00+00:00
Last Updated2026-09-29T04:10:46.672+00:00
Sourcenoaa_ahps
Source URLapi.weather.gov
Confidence1.00
Impact Zones
Modeled Inundation
Where the National Water Model's latest analysis puts water inside the warning area. Experimental; the warning polygon is the official boundary.
NWS polygon
Severe Impact Zone
Active flood warning area. Significant property damage possible.
NWS polygon

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

Impact Analysis

This event's zone is the NWS warning polygon. Population and structure estimates are not computed inside NWS polygons yet, so none are shown.

Historical Comparison
2014 SAN BERNARDINO County, CALIFORNIA Flash Flood71% match

Flash Flood in CALIFORNIA, 17km from current event, $500K in recorded damage

SAN BERNARDINO County, CALIFORNIADamage: $500K
2017 SAN BERNARDINO County, CALIFORNIA Flash Flood71% match

Flash Flood in CALIFORNIA, 35km from current event, $8M in recorded damage

SAN BERNARDINO County, CALIFORNIADamage: $8.0M
2024 SAN BERNARDINO County, CALIFORNIA Flash Flood60% match

Flash Flood in CALIFORNIA, 88km from current event, $5M in recorded damage

SAN BERNARDINO County, CALIFORNIADamage: $5.0M

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

View on Live Map
Related
San Bernardino County, CA disaster historyAll US hazard profilesScoring methodology

Is this event approaching a location you care about?

Calchis tracks live federal event feeds against your own saved addresses and portfolios, and alerts you when a consequence zone reaches one.

Get Started FreeCompare plans

Free includes Live map + 3 triggers + 10 bond positions. Analyst is $149/mo for 1,000-location portfolios, ep curves, predictions, parametric triggers.

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