Alert archive / Iowa / River Flood Warnings in 2018

River Flood Warning 21, NWS Des Moines, IA

June 8, 2018Cerro Gordo County, Floyd County, Worth County, Iowa

NWS Des Moines, IA issued this river flood warning at Jun 8, 2018, 2:02 PM CDT for Cerro Gordo County, Floyd County, Worth County, Iowa. It took effect at Jun 8, 2018, 3:56 PM CDT. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued
Jun 8, 2018, 2:02 PM CDT (19:02 UTC)
In effect from
Jun 8, 2018, 3:56 PM CDT
Expired
Jun 8, 2018, 6:05 PM CDT
In force
2 hr
Issued by
NWS Des Moines, IA
Area
Storm-based polygon
Flood severity
Minor

Counties Cerro Gordo County, IA, Floyd County, IA, Worth County, IA

The radar

The Des Moines radar (KDMX), 169 km from the middle of the area, began a volume at 19:04 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.

The river

Written for the forecast point Winnebago River at Mason City (MCWI4). The gauge peaked at 9.67 ft at Jun 8, 2018, 3:00 PM CDT.

actionminormoderate5101506/0806/09
Action stage
8 ft
Minor stage
10 ft
Moderate stage
14.5 ft
Major stage
15.5 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 05459500, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.

The text

As transmitted.

625 
WGUS43 KDMX 081902
FLWDMX

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Des Moines IA
202 PM CDT Fri Jun 8 2018

...The National Weather Service in Des Moines has issued a Flood 
Warning for all or portions of the following rivers in Iowa...
Winnebago River...

  Affecting the following counties in Iowa...Cerro Gordo...Floyd...
  Worth
  
River forecasts include observed precipitation, as well as expected 
precipitation over the next 24 hours.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you encounter a flooded area, turn around and find an alternate 
route. Turn around, do not drown.

More information--including impact statements and crest 
histories--is available on the Web at...  www.weather.gov/desmoines.
Click on the Rivers and Lakes link.

&&

IAC033-067-195-091901-
/O.NEW.KDMX.FL.W.0021.180608T2056Z-180610T0300Z/
/MCWI4.1.ER.180608T2056Z.180609T0000Z.180609T0300Z.NO/
202 PM CDT Fri Jun 8 2018

...Flood Warning in effect until late this evening...

The National Weather Service in Des Moines has issued a
* Flood Warning for
  The Winnebago River at Mason City, or From Beaver Creek near 
  Fertile...to the Shell Rock River near Rockford.
* Until late this evening.
* At  1:30 PM Friday the stage was 9.5 feet, or 0.5 feet below Flood 
  Stage.
* Flood Stage is 10.0 feet.
* No flooding is occurring and Minor flooding is forecast.
* Forecast...rise to Flood Stage late this afternoon. Continue rising
  to 10.6 feet, or 0.6 feet above Flood Stage, this evening. Then 
  begin falling and go below Flood Stage late this evening.
* Impact...At 10.0 feet, There is widespread flooding of city parks 
  and water reaches the underside of the 12th Street Northeast 
  bridge at the piers.

&&

LAT...LON 4329 9328 4314 9302 4301 9302 4328 9350
      4329 9328                       

$$
1 follow-up statement
283 
WGUS83 KDMX 082305
FLSDMX

Flood Statement
National Weather Service Des Moines IA
605 PM CDT Fri Jun 8 2018

...The Flood Warning has been cancelled for all or portions of the 
following rivers in Iowa...Winnebago River...

  Affecting the following counties in Iowa...Cerro Gordo...Floyd...
  Worth
  
River forecasts include observed precipitation, as well as expected 
precipitation over the next 24 hours.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you encounter a flooded area, turn around and find an alternate 
route. Turn around, do not drown.

More information--including impact statements and crest 
histories--is available on the Web at...  www.weather.gov/desmoines.
Click on the Rivers and Lakes link.

&&

IAC033-067-195-082335-
/O.CAN.KDMX.FL.W.0021.000000T0000Z-180610T0300Z/
/MCWI4.1.ER.180608T2320Z.180609T0000Z.180609T0300Z.NO/
605 PM CDT Fri Jun 8 2018

...Flood Warning is cancelled...

The Flood Warning is cancelled for
  The Winnebago River at Mason City, or From Beaver Creek near 
  Fertile...to the Shell Rock River near Rockford.
* At  5:30 PM Friday the stage was 9.2 feet, or 0.8 feet below Flood 
  Stage.
* Forecast...after cresting below flood stage Friday afternoon, 
  river levels will continue to fall.
* Impact...At 10.0 feet, There is widespread flooding of city parks 
  and water reaches the underside of the 12th Street Northeast 
  bridge at the piers.

&&

LAT...LON 4329 9328 4314 9302 4301 9302 4328 9350
      4329 9328                       

$$

The office that day

Everything else NWS Des Moines, IA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 7, 9:03 PM CDTSpecial Weather StatementDMXWorth57 min
Jun 7, 9:14 PM CDTSevere Thunderstorm WarningDMXWorth46 min
Jun 8, 3:38 AM CDTSpecial Weather StatementDMXWinnebago52 min
Jun 8, 6:24 AM CDTSpecial Weather StatementDMXCerro Gordo, Worth66 min
Jun 8, 6:43 AM CDTSpecial Weather StatementDMXHancock, Kossuth, Palo Alto, Winnebago47 min
Jun 8, 8:01 AM CDTFlash Flood WarningDMXCerro Gordo, Worth6 hr
Jun 8, 1:40 PM CDTAreal Flood WarningDMXCerro Gordo21 hr
Jun 8, 2:02 PM CDTSevere Thunderstorm WarningDMXDavis, Wapello13 min
Jun 8, 2:11 PM CDTRiver Flood WatchDMXBlack Hawk40 hr
Jun 8, 3:02 PM CDTSevere Thunderstorm WarningDMXSac43 min
Jun 8, 3:46 PM CDTSpecial Weather StatementDMXSac29 min

Nearby

River Flood Warnings in Iowa, 2018Every river flood warning in 2018

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive; the gauge from the NWS water service and the USGS.