FLOOD
WHAT IS A FLOOD?
A FLOOD RESULTS FROM DAYS OF HEAVY RAIN AND/OR MELTING SNOWS, WHEN RIVERS RISE
AND GO OVER THEIR BANKS.
WHAT IS A FLASH FLOOD?
A FLASH FLOOD IS SUDDEN FLOODING THAT OCCURS WHEN FLOODWATERS RISE RAPIDLY WITH
NO WARNING WITHIN SEVERAL HOURS OF AN INTENSE RAIN. THEY OFTEN OCCUR AFTER
INTENSE RAINFALL FROM SLOW MOVING THUNDERSTORMS. IN NARROW CANYONS AND
VALLEYS, FLOODWATERS FLOW FASTER THAN ON FLATTER GROUND AND CAN BE QUITE
DESTRUCTIVE.