Potential Historic Flood Friday

Heavy rain earlier this week has now made its way into the Turkey River and it is on the rise. The river is rising about one foot per hour. The forecast crest is near 25.5 to 27.0 ft Friday afternoon. The record crest is 27.77 feet on June 10, 2008.
Here is a look the river earlier this afternoon.
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Elkader has been working quickly for the last 48 hours to prepare for the water to move downstream.
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Once the river reaches the crest Friday morning it will fall just as fast dropping below flood stage by Saturday night.
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Posted under Flooding, Rivers

This post was written by Schnack on August 25, 2016

River Flooding and Levels

Very heavy rain in our northern counties early Wednesday has caused river flooding.  Winneshiek, Allamakee, Chickasaw, Clayton, Fayette, and Howard counties have multiple river locations that are at least nearing minor flood stage. There are some locations that have moderate or major flooding either currently or will in the next 48 hours.

HOWARD COUNTY:

UIR_limesprings

The Upper Iowa River near Lime Springs has major flooding with a current level of 14.62 feet. Only observed stages are available at this location.

TR_Cresco

The Turkey River near Cresco is currently in minor flood stage at 9.03 feet. It peaked earlier Thursday at 15.11 feet (moderate flood stage). Only observed stages are available at this location.

 

CHICKASAW COUNTY:

LCR_Ionia

The Little Cedar River near Ionia is near flood stage at 9.06 ft. Only observed stages are available at this location.

LCR_nashua

The Little Cedar River at Nashua is in minor flood stage at 9.26. Only observed stages are available at this location.

 

WINNESHIEK COUNTY:

UIR_kendallville

The Upper Iowa River at Kendallville is near flood stage at 12.1 feet. Only observed stages are available at this location.

UIR_bluffton

The Upper Iowa River at Bluffton is currently near minor flood stage at 13.65 feet. It is expected to fall below the action stage Thursday night.

UIR_decorah

The Upper Iowa River near Decorah 3 NW is in minor flood stage at 13.61 feet. Only observed stages are available at this location.

UIR_decorah2

The Upper Iowa River at Decorah is currently in moderate flood stage at 13.11 feet. It is expected to fall below flood stage Thursday morning.

TR_Spillville

The Turkey River at Spillville is currently in major flood stage at 19.23 feet. It peaked at 20.25 feet. Only observed stages are available at this location.

 

FAYETTE COUNTY:

TR_ ElDorado

The Turkey River near El Dorado is currently in major flood stage at 17.58 feet. Only observed stages are available at this location.

TR_ Clermont

The Turkey River at Clermont is right below flood stage at 15.99 feet. This is the highest level recorded over the past 24 hours. Only observed stages are available at this location.

 

ALLAMAKEE COUNTY:

UIR_dorchester

The Upper Iowa River at Dorchester is currently in major flood stage at 22.05 feet. It is expected to fall below flood stage Friday night.

MR_Lansing

The Mississippi River at Lansing is currently in the action stage at 12.25 feet. It is expected to rise until Friday morning but will stay below flood stage.

MR_Lynxville

The Mississippi River at Lynxville is currently in the action stage at 619.95 feet. It is expected to rise until Friday but will stay below flood stage.

 

CLAYTON COUNTY:

TR_elgin

The Turkey River near Elgin is currently in minor flood stage at 12.97 feet. Only observed stages are available at this location.

MR_mcgregor

The Mississippi River at Lynxville is currently at 12.62 feet. It is expected to rise until Saturday but will stay below flood stage.

TR_elkader

The Turkey River at Elkader is currently near minor flood stage at 11.84 feet. It is expected to rise to 25 feet Thursday afternoon (major flood stage) before falling below flood stage on Friday.

TR_ garber

The Turkey River at Garber is currently not in flood stage at 9.7 feet. It is expected to rise to 26 feet (major flood stage) Thursday afternoon before falling below flood stage again on Friday night.

MR_Guttenberg

The Mississippi River at Guttenberg is currently at 11.02 feet. It is expected to rise until Friday but will stay below flood stage.

 

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Posted under Flooding, Rivers

This post was written by Rachael Peart on August 24, 2016

Flooding Rain

Heavy rain has been falling across northern Iowa this evening leaving the rest of the area rain free through midnight.
KWWL 2015 MAX Storm ED

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Posted under Flooding

This post was written by Schnack on August 23, 2016

Major Flooding in Lousiana

While we had our own heavy rain event Thursday night and Friday morning here in eastern Iowa (1 to 7 inches), the situation is much worse to our south in Louisiana.  A slow moving storm system has dumped at least 1 to 2 feet of rain across portions of the state, with more rain on the way in the days ahead, potentially dropping several more inches of rain.

KWWL 2015 MAX Storm ED

As of Saturday evening (8/13), 3 people have died in the floods.

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Posted under Flooding

This post was written by Kyle Kiel on August 13, 2016

Thursday/Friday Rainfall Totals

Very heavy rain tracked through eastern Iowa Thursday and Friday, most of which fell Thursday night.  We’ve had rainfall reports of around an inch, to as high as 7 inches across eastern Iowa.

Here’s the Doppler Radar estimates over the last 48 hours.

48 hr rain

Last 48 Hours:  
City Total
Waterloo 1.48
Dubuque 1.56
Cedar Rapids 5.02
Iowa City 2.82
Last 24 Hours:
Ainsworth 7.4 N 3.98
Allison 1.25
Amana 3.5 ENE 4.33
Amana 4.7 W 5.70
Anamosa 3SSW 2.05
Belle Plaine 3.20
Bellevue 0.3 SSW 3.20
Bellevue L& D 12 2.60
Brighton 2.77
Cascasde 2.09
Cedar Falls 0.6 N 0.78
Cedar Falls 1.4 SSE 1.36
Cedar Rapids 3.4 NW 4.40
Center Point 0.6 NNW 3.69
Central City 6.7 W 2.23
Charles City 0.70
Clarksville 0.2 NW 0.71
Clutier 2.19
Coggon 3.89
Colwell 0.53
Coralville 1.8 NW 2.62
Cresco 1NE 0.32
Decorah 4.9SE 0.66
Decorah 7.9 ENE 0.41
Dubuque #3 1.41
Dubuque L&D #11 0.96
Dysart 3.1 N 2.93
Edgewood 1.28
Eldora 1.2 ENE 1.35
Elkader 6SSW 1.16
Elma 0.41
Ely 0.5 SE 5.64
Fort Atkinson 0.2 SE 0.89
Gilbertville 1.0 NW 1.35
Grundy Center 1.35
Guttenberg L&D 10 0.46
Hampton 0.93
Hopkinton 0.2 NE 3.63
Independence 1.2 N 1.27
Ionia 2W 1.02
Iowa City 3.47
Iowa City 4.5 N 2.00
Iowa Falls 1.59
Kalona 7.3 NNW 2.48
Kesley 3 NE 1.42
Latimer 1.9 NE 0.89
Manchester No. 2 1.06
Maquoketa 4 W 2.51
Marengo 2.6 SSW 4.06
Marengo 4W 4.71
Marion 1.2 NE 3.61
Marion 1.7 NNW 3.34
Monona 0.53
Monticello 2.73
Nashua 2SW 0.91
New Hampton 0.82
New Hampton 0.3 NNW 1.22
North English 1.97
North Liberty 1.0 ENE 3.42
Oelwein 1NE 1.15
Osage 0.56
Parkersburg 1.40
Parnell 0.1 SSW 3.6
Peosta 2.9 E 1.11
Quasqueton 1.8 S 3.22
Robins 0.4 SSE 3.63
Sigourney 1.92
Sigourney 1.1 W 1.90
Solon 0.3 ESE 5.58
St. Ansgar 0.75
Stanley 4W 0.71
Strawberry Point 1.29
Swisher 0.4 NNE 6.95
Toledo 3N 2.42
Traer 2.50
Tripoli 1.19
Vinton 6.25
Volga 1NE 1.01
Washington 1.64
Waterloo 1.4 ESE 1.10
Waterloo 1.8 SSE 0.98
Waterloo 3.0 NNW 1.73
Waucoma 1.37
Waucoma 0.2 N 1.54
Waucoma 3.2 S 1.54
Williamsburg 3.70

Several counties are under a Flood Warning until 6:45 PM Friday (8/12) for rising ditches, creeks, streams and rivers.  Remember, if you come across a flooded roadway, “Turn Around, Don’t Drown.”

Flood Warning

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Posted under Flooding, Precipitation Totals

This post was written by Kyle Kiel on August 12, 2016

Heavy Rain and Flash Flooding Potential

We are tracking an area of low pressure and a cold front that will move through eastern Iowa Thursday evening and overnight.  As you know, it’s very humid out so there is a lot of moisture available in the atmosphere.  Heavy rain will be the primary threat as these storms move there.  There is a slight risk for severe weather, mainly in western parts of Iowa.  But, as the storms move through, gusty winds are possible.

A Flash Flood Watch is in effect for the KWWL viewing area through Friday morning.

Flash Flood Watch

 

The Weather Prediction Center has eastern Iowa in a Slight to Moderate risk for flash flooding.

 

flooding

Widespread 1-3″ totals are expected, with locally higher amounts.

 

Flash Flood 1

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Posted under Flooding, Forecast Discussion

This post was written by Kyle Kiel on August 11, 2016

Flash Flood in Shopping Center

Flash flooding causes a river through the Ginza Shopping Center in Jinan China

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Posted under Flooding, Video

This post was written by Schnack on June 23, 2016

Wednesday Morning Flooding

This picture is from Washington & 1st Street in Waterloo.

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Posted under Flooding

This post was written by Schnack on June 22, 2016

Heavy Rain Possible

Rainfall rates tonight could exceed the amounts needed in a three hour period to cause flash flooding.

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The Flash Flood Watch remains in effect tonight for most of eastern Iowa.

 

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Posted under Flooding, Update

This post was written by Schnack on June 21, 2016

Storms Tonight with Heavy Rain and Hail

A warm front, southwest of Iowa early this afternoon, is forecast to move northeast across the state.

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As it does, rain and storms will develop later this evening. The storms are expected to develop around 10 or 11 pm and become widespread in just a couple of hours. The initial storms could produce large hail and heavy rain. Then the threat turns to more of a flooding rain situation. Widespread 1-2″ of rain is expected with isolated higher amounts to near 5″. This is the reason why a Flash Flood Watch is in effect tonight.

Flash Flood Watch

Flash flood guidance shows the ground could only handle a little more than 2″ of rain in 3 hours. Some places might see more than that.
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Here is the rain forecast for Tuesday evening to Wednesday evening. Most of this rain will fall tonight.
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The storms will be widespread overnight and eventually ending between 7-9 AM Wednesday.

 

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Posted under Flooding, Update

This post was written by Schnack on June 21, 2016