THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED AN

* URBAN AND SMALL STREAM FLOOD ADVISORY FOR…
POLK COUNTY IN CENTRAL IOWA…
THIS INCLUDES THE CITY OF DES MOINES…

* UNTIL 1245 AM CDT

* AT 947 PM CDT THUNDERSTORMS PRODUCING HEAVY RAIN WERE MOVING SOUTH
ACROSS THE COUNTY. THE STORMS WERE ENTERING THE METROPOLITAN DES
MOINES AREA AT THIS TIME.

THE THUNDERSTORMS WILL MOVE SOUTH ACROSS THE AREA WITH THE BULK OF
THE RAIN ENDING BY 11 PM.

ADDITIONAL RAINFALL AMOUNTS OF ONE AND ONE HALF TO TWO AND ONE HALF
INCHES IN 60 TO 909 MINUTES IS LIKELY OVER MUCH OF THE WARNED AREA.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE ELEVATED LEVELS ON
SMALL CREEKS AND STREAMS…AND PONDING OF WATER IN URBAN AREAS…
HIGHWAYS…STREETS AND UNDERPASSES AS WELL AS OTHER POOR DRAINAGE
AREAS AND LOW LYING SPOTS.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. MOVE TO HIGHER GROUND.