Flu season comes every year, and its timing doesn't hold still. In the United States it usually runs through the fall and winter, and activity most often peaks between December and February. Across the 40 seasons from 1982 through 2024, the peak month was most often February, in 17 of them, followed by December, January and March.
For an urgent care operator, that spread is the staffing problem. You know a surge is coming and you don't know which month it lands in. A flu season surge staffing plan can't be tied to a date. It has to be tied to your own volume, with the slow steps finished before the volume moves.
Why flu season surge staffing is hard
Three things happen at once.
Every clinic in your market surges together. Flu doesn't arrive at one urgent care. When your waiting room fills, so does the one two miles away, and both of you are looking for extra coverage from the same local clinicians in the same week.
Your own team gets sick. The virus filling your schedule is also circulating among your physicians, NPs, PAs, RNs and MAs. Visits go up while staffed hours go down, so the gap opens from both sides.
New coverage has lead time. A clinician who has never worked at your clinic has to be found, reviewed against your requirements and oriented before they see a patient. If those steps start the week volume spikes, the coverage arrives after the worst of it.
Flu season surge staffing therefore gets decided in the months before the surge. During the surge you can only use what's already in place.
Build flu season coverage before volume climbs
Late summer and early fall are the working window: after the summer vacation schedule settles and before respiratory visits start to rise.
Clear a group of locum clinicians in advance
Identify the clinicians you'd want for surge shifts and complete your clinic's review for them now. Include the roles a surge actually strains. An extra physician, NP or PA adds visit capacity only if there are enough RNs and MAs to room patients, run tests and turn rooms over.
These clinicians don't need a standing commitment from you. They need to be cleared to work at your clinic, set up in your EMR, and aware that you'll post shifts when volume rises. Anyone who has covered your clinic before goes at the top of the list, since they've already had their first shift.
Set your surge staffing thresholds
Decide ahead of time what volume triggers extra shifts, so nobody has to make that judgment during a full waiting room. One way to frame it: when projected weekly visits pass a set percentage above your trailing 30-day average, you post one additional shift per day. Past a second, higher mark, you post two. If a staff clinician calls out sick while you're already above the first mark, you fill that shift at once.
The percentages are yours to set from your own history. Forecasting walk-in volume from historical data shows how to find your baseline and your past surge weeks, and staffing ratios by patient volume converts a visit forecast into provider hours.
Settle who can approve the spend
A surge shift often needs approving at an inconvenient hour. Before the season, name who can authorize an extra shift and at what rate, and name their backup. Confirm that the people who'll post shifts already have accounts and logins wherever you post them.
To set the rate ceiling, it helps to know what the alternative costs. What an unfilled urgent care shift costs is a worksheet for that number.
Flu season surge staffing: the first two days
When a threshold trips, the response should be a sequence your team has already agreed on.
- Confirm and authorize. Check that the volume change is holding across more than one day and get the spend approved by the person you named.
- Go to the clinicians you've already cleared. Contact them directly and post the shifts where they can see them. Give the dates, hours, role and rate in the first message.
- Widen the search. If your cleared group can't cover it, post the shift more broadly, knowing that anyone new has to pass your review before working.
- Send logistics the day before. Where to park, who to ask for, how EMR login works, and what the clinic handles on site. Time spent finding these out at the start of a shift is time patients spend waiting.
- Brief at the start of the shift. A few minutes on current volume, what's in the queue, and who to go to for equipment or escalation.
What a locum needs before a first shift covers steps four and five in detail. A clinician whose first shift at your clinic went smoothly is someone you can ask back, and each one who returns makes the next surge easier to staff.
Surge staffing across several sites
A multi-site operator has one more problem: the gaps don't open at every location at once, and the same cleared clinicians may be able to work at more than one of them.
Make coverage decisions in one place. If each site manager contacts the same clinicians independently, they'll double-book them. One person or team should assign surge coverage across sites in order of need.
Know who'll travel between sites. Some clinicians will work any of your locations and some want one. Record that when you clear them so the question isn't being asked during a surge.
Review each site after the season. Compare how long each location took to get a surge shift covered and how the first shifts went. The differences usually come down to local setup, such as how quickly a new clinician gets a working login, and those are cheaper to fix in the spring than to work around every winter.
What the preparation is good for the rest of the year
A cleared group of clinicians, a defined trigger and a named approver are the same things you need for a same-day call-out, a holiday weekend, or a summer surge in a tourist market. Flu season is the hardest test of that setup, and the work carries over to every other gap in the schedule.
Rediworks is a self-service marketplace for urgent care locum shifts. You post the shifts you need by clinician type and date, and clinicians apply with a credential wallet they've already built. Sign up to post shifts.