Help for running: 3 consecutive days of 95% daily mean temperature

My matrice M consist of (longitude, lattitude, days). M(61,15,10958)

To calculate the 95 percentile I take the mean:

M_mean = mean(M,3);

M_mean_pct = prctile(M_mean, 95)

Now I need help for running 3 consecutive days.

days = 0;

HW = 0;

for t = 1:size(M, 3)

if M(:,:,t) > M_mean_pct

days = days + 1;

if days >= 3;

HW = HW +1

HW ongoing = 1

else

HW = 0;

end

What I am trying to run is

for time = 1:days - time

if M(t) > pct95 --> days = days +1

if days > 3 --> heatwave (HW) = heatwave (HW) +1

if heatwave is already present (HW ongoing) = 1

If this is not the case, the heat wave (HW) = 0

Your answer is very much appreciated!