Flash Flood Warning 21, NWS Quad Cities, IA

Issued

Jun 22, 2007, 6:24 PM CDT (23:24 UTC)

Expired

Jun 23, 2007, 2:00 AM CDT

In force

8 hr

Issued by

NWS Quad Cities, IA

Area

Whole counties

County Johnson County, IA

The Quad Cities radar (KDVN), 84 km from the middle of the area, began a volume at 23:23 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

000 
WGUS53 KDVN 222324
FFWDVN
IAC103-230700-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
625 PM CDT FRI JUN 22 2007

THE NATIONAL WEATHER SERVICE IN THE QUAD CITIES HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  JOHNSON COUNTY IN EAST CENTRAL IOWA...
  THIS INCLUDES THE CITY OF IOWA CITY...

* UNTIL 200 AM CDT SATURDAY

* AT 620 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
 THUNDERSTORMS CAPABLE OF PRODUCING FLASH FLOODING MOVING INTO THE 
 WARNED AREA. THESE STORMS WILL BE CAPABLE OF PRODUCING 1 TO 3 
 INCHES OF RAIN IN AN HOUR OR LESS. THIS COMBINED WITH THE HEAVY 
 RAIN JOHNSON COUNTY ALREADY RECEIVED THIS MORNING...FLASH FLOODING 
 IS LIKELY. ALSO OTHER STORMS FURTHER WEST IN CENTRAL IOWA WILL ALSO 
 LOOK TO MOVE ACROSS THE WARNED AREA THROUGH LATE EVENING...BRINGING 
 ADDITIONAL HEAVY RAINFALL.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO TIFFIN...
  OAKDALE...NORTH LIBERTY...CORALVILLE AND LONE TREE.

FLASH FLOODING MEANS WATER WILL RISE RAPIDLY TO LEVELS CAUSING A 
THREAT TO LIFE AND PROPERTY. TAKE IMMEDIATE PRECAUTIONS.

FLASH FLOODING IS LIKELY ON CLEAR...DEER...OLD MANS...AND SNYDER 
CREEKS.

DO NOT DRIVE ON FLOODED ROADS. MOST FATALITIES OCCUR IN VEHICLES
SWEPT AWAY IN FLOOD WATERS AS SHALLOW AS 1 FOOT.

FLOODING OF SMALL STREAMS AND CREEKS...STREETS...UNDERPASSES AND LOW
LYING URBAN AREAS IS LIKELY.

LAT...LON 4147 9147 4151 9153 4151 9171 4153 9178
      4179 9179 4177 9152 4176 9151 4176 9140
      4176 9139 4146 9139

$$

12

000 
WGUS73 KDVN 230234
FFSDVN

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
928 PM CDT FRI JUN 22 2007

IAC103-230700-
JOHNSON IA-
928 PM CDT FRI JUN 22 2007

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 200 AM CDT FOR
JOHNSON COUNTY...

AT 924 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
WIDESPREAD MODERATE TO HEAVY RAINFALL STILL MOVING EAST OVER THE 
WARNED AREA. AN ADDITIONAL INCH OF RAINFALL MAY FALL THOUGH 11 PM.
THIS AMOUNT OF RAIN ON SATURATED SOILS WILL AGGRAVATE ANY ONGOING 
FLOODING SITUATIONS...OR CREATE NEW ONES.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE 
DANGERS OF FLOODING...ESPECIALLY WHILE DRIVING.

DO NOT DRIVE ON FLOODED ROADS. MOST FATALITIES OCCUR IN VEHICLES
SWEPT AWAY IN FLOOD WATERS AS SHALLOW AS 1 FOOT.

FLOODING OF SMALL STREAMS AND CREEKS...STREETS...UNDERPASSES AND LOW
LYING URBAN AREAS IS LIKELY.

FLOODING OF SMALL STREAMS AND CREEKS...HIGHWAYS AND STREETS...
UNDERPASSES AND LOW LYING URBAN AND RURAL AREAS IS LIKELY.

LAT...LON 4147 9147 4151 9153 4151 9171 4153 9178
      4179 9179 4177 9152 4176 9151 4176 9140
      4176 9139 4146 9139

$$

12

Flash Flood Warnings in Iowa, 2007Every flash flood warning in 2007

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.