San Mateo County, CA — Threat Level Today
As of Jul 15, 09:40 AM ET, San Mateo County, California is at NORMAL (7/100 on the GridWatch threat index). The primary driver is 0.1% of CA customers without power.
Updated Jul 15, 09:40 AM ET · 14 federal data sources
7 /100
NORMAL
No significant threats detected.
- ▸ 0.1% of CA customers without power
- ▸ 1 active NWS alert
Current Signals
| Signal | Status |
|---|---|
| WEATHER ALERTS | 1 active — Coastal Flood Advisory |
| ACTIVE WILDFIRES | None within 100 miles |
| RIVER FLOODING | All nearby gauges normal |
| AIR QUALITY | No nearby monitor reporting |
| EARTHQUAKES (30D) | M2.9 strongest in region |
| POWER GRID | California at 56.8% of 7-day peak · 0.1% of California customers out |
| FEMA DECLARATIONS (90D) | None in California |
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