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


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.


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


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.



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


Flash Flood 1


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


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.



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.



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



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.


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.

Here is the rain forecast for Tuesday evening to Wednesday evening. Most of this rain will fall tonight.

The storms will be widespread overnight and eventually ending between 7-9 AM Wednesday.



Posted under Flooding, Update

This post was written by Schnack on June 21, 2016

Minor Flooding on Local Rivers

The recent heavy rains across the state of Iowa has caused rising levels on area rivers.  Only minor flooding is forecast.

There is a Flood Warning for area streams and creeks in northern Bremer County through Thursday morning.

A Flood Warning goes into effect for the Cedar River at Cedar Falls Wednesday evening, and lasts through at least Saturday evening.

flood cedar

cedar 1


Minor flooding was occurring on the Turkey River near Garber, but is now falling.


Rain is not in the forecast until late Sunday night into early next week.



Posted under Flooding

This post was written by Kyle Kiel on June 15, 2016

Flood Warning on Black Hawk Creek

UPDATE June 13 : The flood warning has been cancelled early.

There is a Flood Warning until early Tuesday morning for the Black Hawk Creek at Hudson, where minor flooding is occurring.

Flood Warning


This warning extends from the Black Hawk and Grundy County line, to the Cedar River in Waterloo.  The creek is expected to begin its fall below flood levels Monday evening.

However, there are scattered showers and storms in the forecast, with heavy downpours possible.

In fact, there is a chance of rain through Tuesday night and very early Wednesday.  With a lot of moisture in the atmosphere, heavy rainfall is possible for the areas that get the thunderstorms.



Posted under Flooding

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