Alert archive / Iowa / River Flood Warnings in 2017

River Flood Warning 39, NWS La Crosse, WI

July 12, 2017Clayton County, Iowa

NWS La Crosse, WI issued this river flood warning at Jul 12, 2017, 1:40 AM CDT for Clayton County, Iowa. It took effect at Jul 12, 2017, 3:48 AM CDT. It was in force for 22 hr.

The area

The outline as issued.

The facts

Issued
Jul 12, 2017, 1:40 AM CDT (06:40 UTC)
In effect from
Jul 12, 2017, 3:48 AM CDT
Expired
Jul 13, 2017, 1:40 AM CDT
In force
22 hr
Issued by
NWS La Crosse, WI
Area
Storm-based polygon
Flood severity
Minor

County Clayton County, IA

The radar

The La Crosse radar (KARX), 105 km from the middle of the area, began a volume at 06:41 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 Turkey River at Elkader (EKDI4). The gauge peaked at 10.84 ft at Jul 12, 2017, 1:00 AM CDT.

actionminormoderate101507/1207/1307/14
Action stage
10 ft
Minor stage
12 ft
Moderate stage
16 ft
Major stage
20 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 05412020, 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.

557 
WGUS43 KARX 120640
FLWARX


BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service La Crosse WI
140 AM CDT Wed Jul 12 2017

.A flood warning has been issued for the Turkey River at Elkader and Garber. Very heavy rainfall has led to extremely fast rises along the Turkey River. Both sites will reach minor flood stage, with additional rises into at least moderate flood stage possible.

River forecasts take into account both observed and forecast 
precipitation.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you live in a threatened area, be alert for high or rising water, 
and be ready to move to higher ground if necessary. 

Do not drive cars into flooded areas. Remember, it only takes two 
feet of water to float most automobiles, including sport utility 
vehicles. Turn Around, Don't Drown!

Stay tuned to your favorite source of weather information, including 
NOAA Weather Radio, for later statements. 

Additional river and weather information is available at...
http://www.weather.gov/lacrosse .

&&

IAC043-121840-
/O.NEW.KARX.FL.W.0039.170712T0848Z-000000T0000Z/
/EKDI4.1.ER.170712T0848Z.170713T0000Z.000000T0000Z.NO/
140 AM CDT Wed Jul 12 2017

The National Weather Service in La Crosse WI has issued a 

* Flood Warning for 
  The Turkey River At Elkader.
* until further notice.
* At 12:45 AM Wednesday the stage was 10.8 feet.
* Flood stage is 12.0 feet.
* Forecast...Rise above flood stage by this morning and continue to
  rise to near 16.0 feet by this evening. Additional rises are
  possible thereafter.

&&
 
LAT...LON 4294 9146 4284 9134 4280 9136 4293 9161 4298 9161

$$

IAC043-121840-
/O.NEW.KARX.FL.W.0040.170712T0754Z-000000T0000Z/
/GRBI4.1.ER.170712T0754Z.170712T1800Z.000000T0000Z.NO/
140 AM CDT Wed Jul 12 2017

The National Weather Service in La Crosse WI has issued a 

* Flood Warning for 
  The Turkey River At Garber.
* until further notice.
* At  1:15 AM Wednesday the stage was 16.2 feet.
* Flood stage is 17.0 feet.
* Minor flooding is forecast.
* Forecast...Rise above flood stage by this morning and continue to 
  rise to near 19.6 feet by today. additional rises are possible 
  thereafter.
* Impact...At 19.0 feet...County Road X3C at the south end of Garber 
  becomes inundated.

&&
 
LAT...LON 4280 9136 4284 9134 4269 9096 4272 9131

$$

Aegerter
1 follow-up statement
816 
WGUS83 KARX 120946
FLSARX


Flood Statement
National Weather Service La Crosse WI
446 AM CDT Wed Jul 12 2017

.Hevay rainfall last evening into early this morning has resulted in
flooding along portions of the Turkey River.

River forecasts take into account both observed and forecast 
precipitation.

PRECAUTIONARY/PREPAREDNESS ACTIONS...


Do not drive cars into flooded areas. Remember, it only takes two 
feet of water to float most automobiles, including sport utility 
vehicles. Turn Around, Don't Drown!

Additional river and weather information is available at...
http://www.weather.gov/lacrosse .

&&

IAC043-121016-
/O.CAN.KARX.FL.W.0039.000000T0000Z-170712T0946Z/
/EKDI4.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.NO/
446 AM CDT Wed Jul 12 2017

The Flood Warning is cancelled for
  The Turkey River At Elkader.
* At  3:45 AM Wednesday the stage was 9.2 feet.
* Flood stage is 12.0 feet.
* Forecast...The river crested below flood stage at 10.8 feet. The 
  river will continue to fall to 8.1 feet by Thursday morning.

$$

IAC043-130046-
/O.CON.KARX.FL.W.0040.000000T0000Z-170713T2300Z/
/GRBI4.1.ER.170712T0636Z.170712T1200Z.170713T0500Z.NO/
446 AM CDT Wed Jul 12 2017

The Flood Warning continues for
  The Turkey River At Garber.
* until Thursday evening...Or until the warning is cancelled.
* At  4:15 AM Wednesday the stage was 18.1 feet.
* Flood stage is 17.0 feet.
* Minor flooding is occurring and Minor flooding is forecast.
* Forecast...The river will continue rising to near 19.0 feet by this
  morning. The river will fall below flood stage Thursday morning.
* Impact...At 19.0 feet...County Road X3C at the south end of Garber 
  becomes inundated.

&&
 
LAT...LON 4280 9136 4284 9134 4269 9096 4272 9131

$$

Wetenkamp

The office that day

Everything else NWS La Crosse, WI issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 11, 7:46 PM CDTSpecial Weather StatementARXClayton44 min
Jul 11, 8:35 PM CDTSpecial Weather StatementARXClayton70 min
Jul 11, 9:14 PM CDTSpecial Weather StatementARXAllamakee46 min
Jul 11, 9:19 PM CDTTornado WarningARXClayton26 min
Jul 11, 9:26 PM CDTAreal Flood AdvisoryARXClayton, Fayette3 hr
Jul 11, 9:44 PM CDTSevere Thunderstorm WarningARXClayton61 min
Jul 11, 10:12 PM CDTTornado WarningARXClayton18 min
Jul 11, 10:14 PM CDTFlash Flood Warning EmergencyARXClayton6 hr
Jul 12, 1:40 AM CDTRiver Flood WarningARXClayton24 hr
Jul 12, 4:22 AM CDTAreal Flood Warning EmergencyARXClayton6 hr
Jul 12, 8:44 AM CDTSpecial Weather StatementARXChickasaw, Clayton, Fayette31 min
Jul 12, 9:13 AM CDTSpecial Weather StatementARXClayton17 min
Jul 12, 9:18 AM CDTSevere Thunderstorm WarningARXClayton42 min
Jul 12, 9:44 AM CDTSevere Thunderstorm WarningARXClayton22 min
Jul 12, 10:12 AM CDTAreal Flood WarningARXClayton3 hr
Jul 12, 5:46 PM CDTSevere Thunderstorm WarningARXFayette26 min

Nearby

River Flood Warnings in Iowa, 2017Every river flood warning in 2017

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.