Alert archive / Wisconsin / River Flood Warnings in 2021

River Flood Warning 2, NWS Milwaukee, WI

August 8, 2021Fond du Lac County, Wisconsin

NWS Milwaukee, WI issued this river flood warning at Aug 8, 2021, 12:56 AM CDT for Fond du Lac County, Wisconsin. It was in force for 11 hr.

The area

The outline as issued.

The facts

Issued
Aug 8, 2021, 12:56 AM CDT (05:56 UTC)
Expired
Aug 8, 2021, 11:45 AM CDT
In force
11 hr
Issued by
NWS Milwaukee, WI
Area
Storm-based polygon
Flood severity
Minor

County Fond du Lac County, WI

The radar

The Milwaukee radar (KMKX), 76 km from the middle of the area, began a volume at 05:57 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 South Branch Rock River at Waupun (WPNW3). The gauge peaked at 6.27 ft at Aug 8, 2021, 2:00 AM CDT.

actionminormoderate246808/0808/09
Action stage
4 ft
Minor stage
6 ft
Moderate stage
8 ft
Major stage
10 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 05423500, 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.

805 
WGUS43 KMKX 080556
FLWMKX

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Milwaukee/Sullivan WI
1256 AM CDT Sun Aug 8 2021

...The National Weather Service in Milwaukee/Sullivan WI has issued 
a Flood Warning for the following rivers in Wisconsin...

  South Branch Rock River At Waupun affecting Fond du Lac County.


WIC039-081700-
/O.NEW.KMKX.FL.W.0002.210808T0556Z-210808T1700Z/
/WPNW3.1.ER.000000T0000Z.000000T0000Z.000000T0000Z.NO/
1256 AM CDT Sun Aug 8 2021

The National Weather Service in Milwaukee/Sullivan has issued a

* Flood Warning for
  the South Branch Rock River At Waupun.
* From early this morning to this afternoon.
* At 12:00 AM CDT Sunday the stage was 5.2 feet.
* Flood stage is 6.0 feet.
* The river is rapidly rising and is expected to reach flood stage 
  early this morning.
* Forecast...No forecast is available for this location.
* Impact...At 4.8 feet, Gateway Dr. is flooded and closed.

&&


River forecasts are available for some but not all river gaging
locations. The 7 day river forecast takes into account past
precipitation, soil moisture conditions, and predicted
precipitation for the basin. Precipitation is for the next 24 hours
in the future from April through September and for 48 hours in the
future from October through March.

(Stages in ft.)       Bank-       Latest         Forecast stages   
-               Flood full       observed        ...for 5 pm...    
Location        stage stage     stage/time    Thu  Fri  Sat  Sun   
Waupun          6.0   4.0   5.16  12 am 8/08  not a forecast point 

-                    Highest       24 hour change                    
-                    observed      in river stage                    
-                    stage in        (ft.) up to     Highest stage   
-                    the last      latest observed    forecast in    
-                     7 days            stage         next 7 days    
Waupun          5.16  12 am 8/08        2.99         Not Available   





&&

LAT...LON 4362 8886 4370 8881 4367 8868 4363 8864
      4357 8871 4362 8880

$$

BOXELL
1 follow-up statement
350 
WGUS83 KMKX 081645
FLSMKX

Flood Statement
National Weather Service Milwaukee/Sullivan WI
1145 AM CDT Sun Aug 8 2021

...The Flood Warning is cancelled for the following rivers in 
Wisconsin...

  South Branch Rock River At Waupun affecting Fond du Lac County.

WIC039-081745-
/O.CAN.KMKX.FL.W.0002.000000T0000Z-210808T1645Z/
/WPNW3.1.ER.210808T0524Z.210808T0715Z.210808T1315Z.NO/
1145 AM CDT Sun Aug 8 2021

...The Flood Warning for the South Branch Rock River At Waupun has 
been cancelled...

The Flood Warning is cancelled for
  the South Branch Rock River At Waupun.
* At 11:00 AM CDT Sunday the stage was 5.9 feet.
* Flood stage is 6.0 feet.
* Forecast...No forecast is available for this location.

&&


River forecasts are available for some but not all river gaging
locations. The 7 day river forecast takes into account past
precipitation, soil moisture conditions, and predicted
precipitation for the basin. Precipitation is for the next 24 hours
in the future from April through September and for 48 hours in the
future from October through March.

(Stages in ft.)       Bank-       Latest         Forecast stages   
-               Flood full       observed        ...for 5 pm...    
Location        stage stage     stage/time    Thu  Fri  Sat  Sun   
Waupun          6.0   4.0   5.91  11 am 8/08  not a forecast point 

-                    Highest       24 hour change                    
-                    observed      in river stage                    
-                    stage in        (ft.) up to     Highest stage   
-                    the last      latest observed    forecast in    
-                     7 days            stage         next 7 days    
Waupun          6.28  2 am 8/08         3.81         Not Available   





&&

LAT...LON 4362 8886 4370 8881 4367 8868 4363 8864
      4357 8871 4362 8880

$$

HANSEN

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 7, 7:00 PM CDTSpecial Weather StatementMKXRock30 min
Aug 7, 7:20 PM CDTSpecial Weather StatementMKXWaukesha25 min
Aug 7, 7:32 PM CDTSpecial Weather StatementMKXWalworth58 min
Aug 7, 7:51 PM CDTSpecial Weather StatementMKXMilwaukee, Waukesha54 min
Aug 7, 8:06 PM CDTSpecial Weather StatementMKXRacine, Walworth69 min
Aug 7, 9:13 PM CDTSpecial Weather StatementMKXGreen Lake, Marquette77 min
Aug 7, 10:01 PM CDTSpecial Weather StatementMKXDodge, Fond du Lac, Washington59 min
Aug 7, 10:22 PM CDTAreal Flood AdvisoryMKXFond du Lac, Green Lake, Marquette3 hr
Aug 7, 10:33 PM CDTSpecial Weather StatementMKXOzaukee, Sheboygan57 min
Aug 7, 11:00 PM CDTSpecial Weather StatementMKXWashington60 min
Aug 7, 11:36 PM CDTAreal Flood AdvisoryMKXDodge, Ozaukee, Washington75 min
Aug 7, 11:56 PM CDTSpecial Weather StatementMKXDodge34 min
Aug 8, 12:49 AM CDTAreal Flood WarningMKXDodge, Ozaukee, Washington6 hr
Aug 8, 1:37 AM CDTAreal Flood WarningMKXMilwaukee, Ozaukee, Washington, Waukesha5 hr
Aug 8, 2:19 AM CDTFlash Flood WarningMKXMilwaukee, Ozaukee3 hr
Aug 8, 2:43 AM CDTFlash Flood WatchMKXColumbia, Dodge, Fond du Lac, Green Lake, Marquette, Milwaukee and 3 more17 hr
Aug 8, 9:54 AM CDTSmall Craft AdvisoryMKX10 hr
Aug 8, 4:24 PM CDTSevere Thunderstorm WarningMKXGreen Lake, Marquette36 min
Aug 8, 4:38 PM CDTSpecial Weather StatementMKXDodge37 min
Aug 8, 4:50 PM CDTSevere Thunderstorm WarningMKXWashington25 min
Aug 8, 5:05 PM CDTSpecial Marine WarningMKX24 min
Aug 8, 5:12 PM CDTSpecial Weather StatementMKXWashington33 min
Aug 8, 5:37 PM CDTSpecial Weather StatementMKXSheboygan23 min
Aug 8, 5:45 PM CDTSevere Thunderstorm WarningMKXSheboygan30 min
Aug 8, 6:09 PM CDTSpecial Marine WarningMKX51 min
Aug 8, 6:50 PM CDTSpecial Marine WarningMKX55 min

Nearby

River Flood Warnings in Wisconsin, 2021Every river flood warning in 2021

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.