* WHAT...FLASH FLOODING CAUSED BY EXCESSIVE RAINFALL IS POSSIBLE. * WHERE...PORTIONS OF EAST CENTRAL AND NORTHEAST COLORADO, INCLUDING THE FOLLOWING AREAS, IN EAST CENTRAL COLORADO, NORTH AND NORTHEAST ELBERT COUNTY BELOW 6000 FEET NORTH LINCOLN COUNTY. IN NORTHEAST COLORADO, CENTRAL AND EAST ADAMS AND ARAPAHOE COUNTIES, LOGAN COUNTY, MORGAN COUNTY, NORTHEAST WELD COUNTY AND WASHINGTON COUNTY.

* WHEN...FROM THIS AFTERNOON THROUGH THIS EVENING.

* IMPACTS...EXCESSIVE RUNOFF MAY RESULT IN FLOODING OF RIVERS, CREEKS, STREAMS, AND OTHER LOW-LYING AND FLOOD-PRONE LOCATIONS.

* ADDITIONAL DETAILS... - STRONG THUNDERSTORMS WITH HEAVY RAINFALL WILL BE POSSIBLE IN THE WATCH AREA THIS AFTERNOON AND EVENING. RAINFALL RATES MAY REACH 1 TO 2 INCHES IN 30 MINUTES FOR LOCALIZED AREAS.