Special Weather Statement

Published 09/24 2016 08:40PM

Updated 09/24 2016 08:40PM

Issued at: 09/24/2016 8:37:00 PM CDT
Expires on: 09/24/2016 9:15:00 PM CDT
Counties affected: Polk IAZ059-060-072-073-093-250215- WARREN IA-MADISON IA-DALLAS IA-POLK IA-RINGGOLD IA- 837 PM CDT SAT SEP 24 2016 ...THUNDERSTORMS WITH HEAVY RAINS MOVING TOWARD DES MOINES METRO AREA... AT 830 PM CDT...DOPPLER RADAR WAS TRACKING THUNDERSTORMS ALONG A LINE EXTENDING FROM GRANGER...TO JORDAN CREEK TOWN CENTER...TO NEAR WINTERSET...TO 7 MILES SOUTHEAST OF SUN VALLEY LAKE. MOST OF THE CELLS WERE MOVING TO THE NORTH, BUT THE ENTIRE SYSTEM WAS MOVING ONLY SLOWLY EAST AT 15 MPH. THE SLOW SYSTEM MOVEMENT AND HEAVY RAINFALL RATES WITHIN THE STORMS MAY PRODUCE RAINFALL AMOUNTS OF ONE TO TWO INCHES IN AN HOUR. THIS WILL LIKELY PRODUCE LOW VISIBILITIES, PONDING WATER ON ROADS AS WELL AS RAPID RISES IN SMALL STREAMS AND CREEKS. MOTORISTS SHOULD BE ESPECIALLY AWARE OF URBAN LOW WATER CROSSINGS THAT TYPICALLY PRODUCE STANDING WATER DURING HEAVY RAINS. LOCATIONS IMPACTED INCLUDE... DES MOINES...WEST DES MOINES...ANKENY...URBANDALE...JOHNSTON... CLIVE...INDIANOLA...ALTOONA...WAUKEE...NORWALK...PLEASANT HILL... GRIMES...WINTERSET...WINDSOR HEIGHTS...CARLISLE...BONDURANT...POLK CITY...SAYLORVILLE...MITCHELLVILLE AND GRANGER. PRECAUTIONARY/PREPAREDNESS ACTIONS... TORRENTIAL RAINFALL IS OCCURRING WITH THESE STORMS...AND MAY LEAD TO LOCALIZED FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS. && LAT...LON 4116 9402 4138 9400 4157 9389 4185 9391 4186 9383 4186 9336 4156 9336 4137 9351 4116 9354 TIME...MOT...LOC 0135Z 270DEG 11KT 4178 9379 4158 9378 4138 9389 4079 9393 $$