Moderate Heatwave ● Monitoring
Heat Advisory issued October 17 at 4:13AM PDT until October 17 at 8:00PM PDT by NWS San Diego CA, United States of America
Loading live data… · Marker positions are approximate; severity is labelled in each popup. Sources: USGS, GDACS, NASA EONET, NOAA/NWS, EMSC.
* WHAT...For the Heat Advisory, temperatures up to 95. For the Wind
Advisory, northeast to east winds 15 mph with gusts 25 to 35 mph.
* WHERE...Orange County Inland Areas.
* WHEN...For the Heat Advisory, until 8 PM PDT this evening. For the
Wind Advisory, until noon PDT today.
* IMPACTS...Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result.
Moderate to locally major HeatRisk. Those sensitive to heat may be
impacted.
Measurements
| Coordinates | 39.9645, -100.8105 |
|---|---|
| Region | Orange County Inland |
| Location Precision | country |
| Issuing Authority | United States of America — us-noaa-nws-en |
| Cap Urgency | Expected |
| Cap Certainty | Likely |
| Cap Expires | 2026-10-17T20:00:00-07:00 |
Official source
Warnings courtesy of the issuing national meteorological service, via the WMO Alert Hub.
This is an official warning issued by the authority named above. Follow its instructions and those of your local emergency services.
Severity as published by WMO Alert Hub (national weather services).
View original reportAlso reported by: WMO
This event as JSON · API and licence
Source updated 2 days ago (Oct 17, 2026 11:14 UTC) · we last heard from WMO Alert Hub (national weather services) 35 seconds ago
On a slow connection? Low-bandwidth version — no map, no scripts, under 14 KB.
About this location
The agency did not publish coordinates for this warning. The pin is the centre of the country, not the location of the event — read the area name, not the map, for where it applies.
Area as the agency stated it: Orange County Inland
Official authorities in United States
If you are there, these are the bodies whose instructions apply. This site is not an emergency service and does not issue warnings.
More for United States →What to do
Follow the instructions issued by WMO Alert Hub (national weather services) and your local emergency services. The guidance below is background.
Recognising heat exhaustion and heat stroke, keeping cool, and protecting vulnerable people during extreme heat.
Open Heatwave Safety Guide →Earlier heatwave events in United States
Severe and extreme events of the same kind, before this one. Listed for scale, not because they are connected to it.
Nearby & related events
Disclaimer: figures are automatic feeds from the named agencies and may be revised. Do not use this page for life-safety decisions — follow official local emergency services.