|RECOGNIZING FLOODING POTENTIAL ON RADAR
METEOROLOGIST JEFF HABY
Radar is an important nowcasting tool for recognizing flooding potential.
when too much rain falls over a given time period for the ground surface to support. The flooding potential
will be greater when storms move over previously saturated land, snowmelt combines with rainfall or
rain falls over land that has a low permeability. Any of the following seen on radar
can produce flash flooding especially if the land is already saturated:
1. Training thunderstorms- thunderstorms developing and moving over the same areas that previously
2. Very intense slow moving thunderstorms- a single slow moving thunderstorm can produce several inches of rainfall per
3. Consistent rain- rain
(especially heavy rain) falling over an extended period of time.