The phrase "alert to return" is correct and usable in written English.
It can be used in contexts where someone is being notified or made aware of the need to return to a specific place or situation.
Example: "The team was alert to return to the office as soon as the storm passed."
Alternatives: "ready to return" or "prepared to come back".
The HPA has issued a briefing note to all GPs asking them to be alert to returning travellers from Corfu with relevant symptoms.
Since most of the vaccine was released a month ago, it presumably has already been used, but the recall is intended to alert doctors to return any supplies they have left.
Some mentioned that they had not been adviced (oral, written or a website) on how to best monitor their lesion and what changes should alert them to return to their GP; this could potentially result in thicker lesions at diagnosis.
Residents evacuated from their homes in Londonderry due to a security alert have been allowed to return.
"Failure is not an option" certainly became the underlying philosophy of the Apollo 13 mission and their (spoiler alert) ultimately successful attempt to return the crew safely to Earth.
In answer to a question, he said the Third Infantry had not been formally alerted that it was to return early.
Organizers had been monitoring the movements of the ship online throughout the day on Sunday, and put out a text alert at 5.10pm urging people to return for a second blockade attempt once it became clear that the ship was headed into dock.
Officials in Acapulco advised residents in low-lying areas to be on alert, and also urged fishermen to return to harbor.
Sheriff's deputies discovered him after being alerted that he had failed to return telephone calls from friends and family.
When collecting the prescriptions he was frequently told by the pharmacist that he cannot dispense certain drugs for Mabel because of interaction alerts, with Jeff being asked to return to Mabel's GP to query this.
