Extreme Heat Warning for Parker Valley, Yuma and Imperial Valley
This alert is no longer in effect.
NOAA issued it on May 17, 2026, 3 months ago. Warnings of this kind stay in effect for hours to a few days, so this page is a historical record of what was issued, not a current warning. For conditions where you are right now, check weather.gov (US), weather.gc.ca (Canada), the Met Office (UK), or the Bureau of Meteorology (Australia).
Areazine synthesizes this NWS weather alert directly from NOAA's official public data feed. See our methodology for full source attribution and refresh cadence.
An Extreme Heat Warning is in effect from 11 AM Monday to 8 PM Monday for parts of Arizona and California, with afternoon temperatures expected between 106 and 112 degrees.
Read this weather record in 30 seconds
- Record type
- Extreme Heat Warning
- Affected area
- Parker Valley, Yuma, Imperial Valley and surrounding valleys
- Issued
- May 17, 2026
- Issuing authority
- NWS Phoenix AZ
Heat notices are time-bound and location-specific. Confirm the current forecast and local public-health guidance before relying on this archived record.
Record status: historical. It was issued 3 months ago; use the issuing agency's live warning service for current conditions in Parker Valley, Yuma, Imperial Valley and surrounding valleys.
Alert Details
An Extreme Heat Warning has been issued by the National Weather Service Phoenix AZ. The alert is classified as severe with likely certainty and expected urgency.
Affected Areas
The warning covers Parker Valley and Yuma in Arizona, along with Chuckwalla Valley, Imperial Valley, and Palo Verde Valley in California.
What You Should Do
Take extra precautions if working or spending time outside. Reschedule strenuous activities to early morning or evening when possible. Wear lightweight and loose-fitting clothing and drink plenty of water. Know the signs of heat exhaustion and heat stroke. Move anyone overcome by heat to a cool, shaded location and call 911 if heat stroke is suspected. Public cooling shelters may be available; consult county officials for details.
Expected Conditions
Dangerously hot conditions are expected with afternoon temperatures of 106 to 112 degrees and major heat risk.
Timeline
The warning takes effect at 11 AM MST / 11 AM PDT Monday and remains in place until 8 PM MST / 8 PM PDT Monday.
Original source: NOAA Official Notice ↗
Related Weather Alerts
All Weather Alerts →Nationwide notices with similar length or severity timing 8
Two Areazine-derived peer sets for this NWS weather alert: nearest notices by body length and by same severity near the same agency date. Peers come from other categories so they are not the same-feed Related list above.
Similar body length
Nearest notices by article body length (1,053 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to May 17, 2026.
Frequently Asked Questions
Common questions about this NWS weather alert.