FirstAlerts

Extreme Heat Warning for Kofa, Southeast Yuma County Extended Through Friday

The National Weather Service has extended its Extreme Heat Warning for parts of southwest Arizona, now in effect from Tuesday morning through Friday evening.

4 reports on this incident · first at Sep 7, 2026, 3:47 a.m. ET

By AI ReporterWritten Sep 7, 2026, 3:55 a.m. ET
Developing · checked 11h ago

Hazard products are revised and cancelled as conditions change. Check the National Weather Service for the current alert before acting on this report.

We last searched for new coverage of this at Sep 7, 2026, 7:38 p.m. ET — checked 11h ago.

The National Weather Service in Phoenix has extended an for areas including Kofa, Southeast Yuma County, the Gila River Valley, Tonopah Desert, Gila Bend, and the Sonoran Desert National Monument. The now runs from 10 a.m. Tuesday, September 8, to 8 p.m. MST Friday, September 11 — longer than the window initially issued, which had been set to expire Thursday evening. Dangerously hot conditions are expected, with afternoon temperatures of 104 to 109 degrees and major heat risk. The covers zones, including the communities of Sentinel, Tonopah, Kaka, Palm Canyon, Hassayampa, Ligurta, Gila Bend, Arlington, and Wintersburg. Officials warn that heat-related illnesses increase significantly during extreme heat events, and that overexposure can cause heat cramps and heat exhaustion, which without intervention can lead to heat stroke. The NWS advises rescheduling strenuous activities to early morning or evening, wearing lightweight and loose-fitting clothing, and drinking plenty of water. Anyone overcome by heat should be moved to a cool and shaded location; heat stroke is an emergency, and the NWS says to call 9-1-1. Public cooling shelters may be available in some areas, and residents should consult county officials for details.

Earlier reports

  1. Sep 7, 2026, 3:53 a.m. ET

    Extreme Heat Warning for Kofa, Southeast Yuma County Starts Tuesday

    The National Weather Service in Phoenix has issued an Extreme Heat Warning for areas including Kofa, Southeast Yuma County, the Gila River Valley, Tonopah Desert, Gila Bend, and the Sonoran Desert National Monument. The warning will be in effect from 10 a.m. Tuesday, September 8, to 8 p.m. Thursday, September 11, according to the NWS advisory issued at 12:33 a.m. Tuesday.

    Afternoon temperatures of 104 to 109 degrees are expected, with major heat risk. The NWS warns that heat-related illnesses increase significantly during extreme heat events, and overexposure can lead to heat cramps, heat exhaustion, and heat stroke.

    The NWS advises rescheduling strenuous activities to early morning or evening, wearing lightweight clothing, and drinking plenty of water. Anyone overcome by heat should be moved to a cool, shaded location; heat stroke is an emergency, and the NWS says to call 9 1 1. Public cooling shelters may be available in some areas; the NWS recommends consulting county officials for details.

  2. Sep 7, 2026, 3:52 a.m. ET

    NWS Issues Extreme Heat Warning for Kofa, Southeast Yuma County Starting Tuesday

    The National Weather Service in Phoenix has issued an Extreme Heat Warning for areas including Kofa, Southeast Yuma County, the Gila River Valley, Tonopah Desert, Gila Bend, and the Sonoran Desert National Monument. The warning will be in effect from 10 a.m. MST Tuesday, September 8, until 8 p.m. MST Thursday, September 11, with afternoon temperatures of 104 to 109 degrees expected, creating a Major Heat Risk.

    The Weather Service warns that overexposure can cause heat cramps and heat exhaustion, and without intervention can lead to heat stroke. It advises rescheduling strenuous activities to early morning or evening, wearing lightweight and loose-fitting clothing, and drinking plenty of water. Anyone overcome by heat should be moved to a cool and shaded location, and heat stroke is an emergency requiring a call to 9-1-1. Public cooling shelters may be available in some areas; the Weather Service says to consult county officials for details.

  3. Sep 7, 2026, 3:47 a.m. ETFirst report

    Extreme Heat Warning Issued for Kofa, Southeast Yuma County, Gila River Valley Through Thursday

    The National Weather Service in Phoenix has issued an Extreme Heat Warning for parts of Arizona, effective from 10 AM MST Tuesday, September 8, through 8 PM MST Thursday, September 11. The warning covers areas including Gila Bend, the Sonoran Desert National Monument, Tonopah Desert, Gila River Valley, Kofa, and Southeast Yuma County, according to the weather service.

    Afternoon temperatures of 104 to 109 degrees are expected, with major heat risk. The warning notes that heat-related illnesses increase significantly during extreme heat events, and overexposure can lead to heat cramps, heat exhaustion, and heat stroke.

    The weather service advises taking precautions: reschedule strenuous activities to early morning or evening, wear lightweight and loose-fitting clothing, drink plenty of water, and take frequent rest breaks in shaded or air-conditioned environments if working outdoors. Anyone overcome by heat should be moved to a cool, shaded location. Heat stroke is an emergency; call 9 1 1. Public cooling shelters may be available; consult county officials for details.

Was this report accurate and useful?

Sources

Revision history

  1. Version 17 Sept 2026, 07:55current

    First published.

  2. Version 17 Sept 2026, 07:52current

    First published.

  3. Version 17 Sept 2026, 07:47current

    First published.

  4. Version 17 Sept 2026, 07:53current

    First published.

How we work

This site models an investigative reporter rather than a wire desk. The aim is the most complete, accurate and timely account we can assemble — all three, not a trade between them. Reports go out within minutes of the coverage they are built from, carrying context a newsroom would otherwise need a day and a records request to gather: what has happened at this place before, what the operator’s record is, which aircraft it actually was.

Reports are built from primary sources — accident and court records, official registries, weather observations, agency statements — and from reputable news organisations, each named where their reporting is used. Facts are extracted before anything is written, and every one must be supported by a quotation found in the source itself; the model that writes the report is given only those verified facts and never sees the article, so it cannot introduce a detail no source stated.

Where sources disagree we publish the disagreement, attributed, rather than picking a figure. Where a fact comes from a record rather than a reporter, we say so, and the language matches: an instrument reading is never described as something anyone confirmed. Some things are deliberately withheld — a suspect is not named until an agency names them on the record, victims until families or officials release them — and corrections appear as visible revisions, never as silent edits.

None of that makes a report true. A quotation check proves a source said something, not that it was right, and an automated system can be confidently wrong in ways the checks do not catch. If something here is wrong, the feedback above is how it gets found. The full methodology, including what we refuse to publish.