Alert archive / Minnesota / River Flood Warnings in 2018

River Flood Warning 2, NWS Twin Cities, MN

March 29, 2018Brown County, Minnesota

NWS Twin Cities, MN issued this river flood warning at Mar 29, 2018, 7:47 PM CDT for Brown County, Minnesota. It took effect at Mar 30, 2018, 7:00 AM CDT. It was in force for 4 days.

The area

The outline as issued.

The facts

Issued
Mar 29, 2018, 7:47 PM CDT (00:47 UTC)
In effect from
Mar 30, 2018, 7:00 AM CDT
Expired
Apr 3, 2018, 7:00 AM CDT
In force
4 days
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon
Flood severity
Minor

County Brown County, MN

The radar

The Minneapolis radar (KMPX), 100 km from the middle of the area, began a volume at 00:50 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 Cottonwood River (MN) at New Ulm (NWUM5). The gauge peaked at 11.87 ft at Mar 31, 2018, 2:00 AM CDT.

actionminormoderate810121403/3003/3104/0104/0204/0304/04
Action stage
9 ft
Minor stage
11 ft
Moderate stage
13 ft
Major stage
16 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 05317000, 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.

164 
WGUS43 KMPX 300047
FLWMPX
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Twin Cities/Chanhassen MN
747 PM CDT Thu Mar 29 2018

...The National Weather Service in Chanhassen has issued a flood 
warning for the following rivers in Minnesota... 

  Cottonwood River at New Ulm affecting Brown County


.This river forecast is based on ongoing and forecast snowmelt.
Additional precipitation Friday into Saturday may cause river levels to rise even higher than predicted. The National Weather Service will
monitor this developing situation and issue followup statements as 
conditions or forecasts change.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive cars through flooded areas.  Turn Around...Don't Drown. 

Stay tuned to NOAA Weather Radio or your local radio or TV station 
for the latest information concerning this flood event.

&&

MNC015-310647-
/O.NEW.KMPX.FL.W.0002.180330T1200Z-180403T1200Z/
/NWUM5.1.ER.180330T1200Z.180331T1800Z.180402T1800Z.NO/
747 PM CDT Thu Mar 29 2018

The National Weather Service in Chanhassen has issued a 

* Flood Warning for 
  The Cottonwood River at New Ulm.
* from Friday morning to Tuesday morning.
* At  7:00 PM Thursday the stage was 10.3 feet.
* Minor flooding is forecast.
* Flood stage is 11.0 feet.
* Forecast...Rise above flood stage by tomorrow morning and continue 
  to rise to near 11.7 feet by Saturday early afternoon.the river 
  will fall below flood stage by Monday early afternoon.
* Impact...At 11.0 feet...Flood waters begin to impact low lying 
  areas...and some roads along the river.

&&
 
LAT...LON 4433 9448 4427 9441 4422 9470 4430 9470

$$
ETA
5 follow-up statements
512 
WGUS83 KMPX 301356
FLSMPX
Flood Statement
National Weather Service Twin Cities/Chanhassen MN
856 AM CDT Fri Mar 30 2018

...The flood warning continues for the following rivers in 
Minnesota...
 
  Cottonwood River at New Ulm affecting Brown County 

.Overview...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive cars through flooded areas.  Turn Around...Don't Drown. 

Stay tuned to NOAA Weather Radio or your local radio or TV station 
for the latest information concerning this flood event.

&&

MNC015-311956-
/O.EXT.KMPX.FL.W.0002.000000T0000Z-180403T0900Z/
/NWUM5.1.ER.180330T0627Z.180331T1800Z.180402T1500Z.NO/
856 AM CDT Fri Mar 30 2018

...The Flood Warning continues for
  The Cottonwood River at New Ulm.
* until late Monday night.
* At  8:00 AM Friday the stage was 11.2 feet.
* Minor flooding is occurring and is expected to continue.
* Flood stage is 11.0 feet.
* Forecast...The river will continue rising to near 11.9 feet by 
  tomorrow evening. The river will fall below flood stage 
  Monday morning.
* Impact...At 11.0 feet...Flood waters begin to impact low lying 
  areas...and some roads along the river.

&&
 
LAT...LON 4433 9448 4427 9441 4422 9470 4430 9470

$$
AMK
779 
WGUS83 KMPX 310204
FLSMPX
Flood Statement
National Weather Service Twin Cities/Chanhassen MN
904 PM CDT Fri Mar 30 2018

...The flood warning continues for the following rivers in 
Minnesota..
  Cottonwood River at New Ulm affecting Brown County 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive cars through flooded areas.  Turn Around...Don't Drown. 

Stay tuned to NOAA Weather Radio or your local radio or TV station 
for the latest information concerning this flood event.

&&

MNC015-010804-
/O.CON.KMPX.FL.W.0002.000000T0000Z-180403T0900Z/
/NWUM5.1.ER.180330T0627Z.180331T1800Z.180402T1500Z.NO/
904 PM CDT Fri Mar 30 2018

The Flood Warning continues for
  The Cottonwood River at New Ulm.
* until late Monday night.
* At  8:00 PM Friday the stage was 11.7 feet.
* Minor flooding is occurring and Minor flooding is forecast.
* Flood stage is 11.0 feet.
* Forecast...The river will continue rising to near 12.2 feet by 
  tomorrow evening. The river will fall below flood stage late Monday
  morning.
* Impact...At 11.0 feet...Flood waters begin to impact low lying 
  areas...and some roads along the river.

&&
 
LAT...LON 4433 9448 4427 9441 4422 9470 4430 9470

$$
ETA
880 
WGUS83 KMPX 311415
FLSMPX
Flood Statement
National Weather Service Twin Cities/Chanhassen MN
915 AM CDT Sat Mar 31 2018

...The flood warning continues for the following rivers in 
Minnesota..
  Cottonwood River at New Ulm affecting Brown County 

Snowmelt from earlier this week & overnight precipitation will result in minor flooding along the Cottonwood River at New Ulm through Monday morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive cars through flooded areas.  Turn Around...Don't Drown. 

Stay tuned to NOAA Weather Radio or your local radio or TV station 
for the latest information concerning this flood event.

&&

MNC015-012015-
/O.CON.KMPX.FL.W.0002.000000T0000Z-180403T0900Z/
/NWUM5.1.ER.180330T0627Z.180331T1800Z.180402T1500Z.NO/
915 AM CDT Sat Mar 31 2018

The Flood Warning continues for
  The Cottonwood River at New Ulm.
* until late Monday night.
* At  8:00 AM Saturday the stage was 11.7 feet.
* Minor flooding is occurring and Minor flooding is forecast.
* Flood stage is 11.0 feet.
* Forecast...The river will continue rising to near 11.9 feet by this
  afternoon. The river will fall below flood stage late Monday 
  morning.
* Impact...At 11.0 feet...Flood waters begin to impact low lying 
  areas...and some roads along the river.

&&
 
LAT...LON 4433 9448 4427 9441 4422 9470 4430 9470

$$
050 
WGUS83 KMPX 010225
FLSMPX
Flood Statement
National Weather Service Twin Cities/Chanhassen MN
925 PM CDT Sat Mar 31 2018

...The flood warning continues for the following rivers in 
Minnesota...
 
  Cottonwood River at New Ulm affecting Brown County 

.Overview...

Recent snow melt has led to runoff into the Cottonwood River.
More snowfall is expected on Monday and Tuesday. Although the
river is expected to fall below flood stage Monday, it may
rise again late next week, and into the second week of 
April as snow melt, and the anticipated runoff develops once
again. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive cars through flooded areas.  Turn Around...Don't Drown. 

Stay tuned to NOAA Weather Radio or your local radio or TV station 
for the latest information concerning this flood event.

&&

MNC015-020825-
/O.EXT.KMPX.FL.W.0002.000000T0000Z-180403T0000Z/
/NWUM5.1.ER.180330T0627Z.180331T1915Z.180402T0600Z.NO/
925 PM CDT Sat Mar 31 2018

...Flood Warning now expected to end Monday evening...The Flood 
Warning continues for
  The Cottonwood River at New Ulm.
* until Monday evening.
* At  9:00 PM Saturday the stage was 11.5 feet.
* Minor flooding is occurring and Minor flooding is forecast.
* Flood stage is 11.0 feet.
* Forecast...The river will continue to fall to below flood stage by 
  early Monday morning.
* Impact...At 11.0 feet...Flood waters begin to impact low lying 
  areas...and some roads along the river.

&&
 
LAT...LON 4433 9448 4427 9441 4422 9470 4430 9470

$$
123 
WGUS83 KMPX 011955
FLSMPX
Flood Statement
National Weather Service Twin Cities/Chanhassen MN
255 PM CDT Sun Apr 1 2018

...The flood warning is cancelled for the following rivers in 
Minnesota...
 
  Cottonwood River at New Ulm affecting Brown County

.Overview...
The river has fallen below flood stage. Therefore the 
flood warning has been cancelled. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive cars through flooded areas.  Turn Around...Don't Drown. 

Stay tuned to NOAA Weather Radio or your local radio or TV station 
for the latest information concerning this flood event.

&&

MNC015-012025-
/O.CAN.KMPX.FL.W.0002.000000T0000Z-180403T0000Z/
/NWUM5.1.ER.180330T0627Z.180331T1915Z.180401T1400Z.NO/
255 PM CDT Sun Apr 1 2018

The Flood Warning is cancelled for
  The Cottonwood River at New Ulm.
* At 2:00 PM Sunday the stage was 10.8 feet.
* Fell below flood stage at 9:00 AM Sunday.
* Flood stage is 11.0 feet.
* Forecast...The river will continue to fall to 10.1 feet by tomorrow
  morning.
* Impact...At 11.0 feet...Flood waters begin to impact low lying 
  areas...and some roads along the river.

&&
 
LAT...LON 4433 9448 4427 9441 4422 9470 4430 9470

$$

Margraf

The office that day

Everything else NWS Twin Cities, MN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 30, 3:49 AM CDTWinter Storm WarningMPXAnoka, Benton, Chisago, Douglas, Isanti, Kanabec and 6 more30 hr
Mar 30, 3:49 AM CDTWinter Weather AdvisoryMPXAnoka, Benton, Chisago, Douglas, Hennepin, Isanti and 10 more30 hr
Mar 30, 4:05 PM CDTWind AdvisoryMPXBlue Earth, Brown, Chippewa, Faribault, Freeborn, Kandiyohi and 11 more21 hr

Nearby

River Flood Warnings in Minnesota, 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.