The City of North Las Vegas, Clark County, Nye County and Boulder City each posted notices on social media Thursday advising the public that messages to and from municipal employees might be delayed while the outage persisted. North Las Vegas attributed the slowdown to a nationwide failure affecting Outlook and 365, and asked residents for patience as staff worked around the disruption.

Reports of problems with Microsoft products, Outlook in particular, began climbing around 10:10 a.m. local time, and the service remained degraded as of about 1 p.m., according to outage tracking. The four agencies issued their advisories within that window.

The practical effect for residents is uncertainty about how quickly routine government business — permit questions, records requests, case follow-ups and other correspondence — will be answered while inboxes are unreliable. None of the agencies indicated that in-person services or phone lines had been shut down, only that email traffic was affected.

Local hospitals reported that they were not affected by the outage, a notable point of reassurance in a region where health systems depend heavily on digital scheduling and records.

Microsoft 365, which includes Outlook along with word processing, spreadsheet and collaboration tools, is widely used across government, schools and private employers, making even a short disruption visible far beyond the affected agencies. The company had not, as of Thursday afternoon, publicly detailed the cause or a timeline for full restoration.

Residents who need to reach a Southern Nevada agency and do not receive a prompt reply by email may want to try phone or in-person contact while the outage continues. The agencies said they would keep the public informed as service returns to normal.