Flash Flood Thresholds
Lead Time Alert with accumulated rainfall (mm)
24 Hours
24 Hours accumulated precipitation < 121.6mm
121.6mm <= 24 Hours accumulated precipitation < 152mm
24 Hours accumulated precipitation > 152mm
48 Hours
168mm <= 48 Hours accumulated precipitation < 210mm
48 Hours accumulated precipitation > 210mm
72 Hours
211.2mm <= 72 Hours accumulated precipitation < 268mm
72 Hours accumulated precipitation > 268mm
Duration
24 Hours
48 Hours
72 Hours