Hundreds of frustrated would-be revelers who,  in spite   of repeated extreme UV alerts from the  Civil Protection Service (Sinaproc) arrived  to dance under the culecos (water sprayed from  tankers) in San Miguelito were blocked by police on Tuesday, March 4  as the celebration area had reached its maximum capacity by 12.30 p.m. when the UV rays were at their strongest. Carnival celebrations ended on Tuesday, but the UV  alerts are effective through Wednesday, March 6.