Moderate to major flooding on local rivers

July 22, 2017

Due to the recent heavy rainfall between 2 and 10 inches across northern parts of the KWWL viewing area, local rivers are experiencing quick rises, leading to moderate to major flooding.

The Volga River at Wadena, Volga and Littleport is experiencing major flooding as of Saturday afternoon, forcing evacuations in Volga.  The Turkey River at Elkader and Garber remains at minor to moderate flood stage, and is forecast to continue to rise through Sunday afternoon.

The Wapsipinicon River near Tripoli is experiencing minor flooding (there is no forecast point for the river near Tripoli).  However, downstream in Independence, the river is expected to rise rapidly Saturday night into Sunday.  The same can be said for the Maquoketa River at Manchester.

No flooding is currently forecast on any part of the Cedar River.

Below you can see the hydrographs that are put out by National Weather Service hydrologists.  Please stay up to date with the latest information.  You can always check the latest levels by clicking this link.

Here are the latest forecasts for area rivers as of Saturday 10:00 PM. (Click the images to make them larger)

Volga River at Wadena

 

Volga River at Volga

 

 

Turkey River at Elkader

 

Turkey River at Garber

 

Wapsi River at Independence

 

Wapsi River near Tripoli

Wapsi River at Anamosa

 

 

Maquoketa River at Manchester

 

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Posted under Flooding, Forecast Discussion

This post was written by Kyle Kiel
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24 Hour Rain Totals (Saturday AM)

July 22, 2017

Overnight rain left many in eastern Iowa with flooded conditions. Here are the 24 hour rain totals as of Saturday morning, July 22, 2017:

Waterloo 1.81
Dubuque 3.25
Cedar Rapids 0.44
Iowa City 2.25
Ackley 9.2 NNE 0.42
Ainsworth 7.4 N 0.57
Amana 4.7 W 0.02
Anamosa 3SSW, IA 1.54
BELLE PLAINE, IA Trace
Bellevue 0.3 SSW 2.80
Bellevue LD 12, IA 2.75
CALMAR, IA 2.21
CASCADE, IA 3.68
Cedar Falls 0.6 N 2.14
Cedar Falls 1.4 SSE 2.02
Cedar Rapids 2.2 WSW 0.42
Cedar Rapids 3.4 NW 0.65
Center Point 0.6 NNW 1.15
Central City 6.7 W 0.89
CHARLES CITY, IA 6.63
COGGON, IA 2.02
CRESCO 1NE, IA 1.68
Decorah 4.9SE 0.58
Decorah 7.9 ENE 0.52
DONNELLSON, IA 0.18
Dubuque #3, IA 2.84
Dubuque L&D 11, IA 4.23
Dysart 3.1 N 1.12
Eldora 1.2 ENE 1.75
ELKADER 6SSW, IA 4.70
Ely 0.5 SE 1.94
FAYETTE, IA 7.67
Fredericksburg 10.00
FULTON, IA 3.00
Gilbertville 1.0 NW 1.07
GRUNDY CENTER, IA 1.60
GUTTENBERG L & D 10, IA 6.23
HAMPTON, IA 0.51
Hopkinton 5.4 WSW 1.80
IONIA 2W, IA 9.30
Iowa City 1.4 W 2.05
Iowa City 4.5 N 1.02
IOWA FALLS, IA 0.58
Kalona 7.3 NNW 0.51
Keokuk L&D 19, IA 0.09
LOWDEN, IA 2.15
MANCHESTER NO. 2, IA 2.79
MAQUOKETA 4 W, IA 2.96
Marengo 2.6 SSW 0.03
Marion 1.2 NE 0.72
Monona WWTP, IA 2.08
Monticello, IA 2.56
Mount Auburn 2.2 NNW 1.54
NASHUA 2SW, IA 5.23
New Hampton 0.3 NNW 5.58
New Hampton 0.4 SW 5.99
Nora Springs 2.4 SSE 0.83
NORTH ENGLISH, IA 0.12
North Liberty 1.0 ENE 1.27
Oelwein 0.8 WNW 4.06
Parnell 0.1 SSW 0.17
Quasqueton 1.8 S 1.22
Robins 0.4 SSE 0.48
Sigourney 1.1 W 0.02
Solon 0.3 ESE 1.87
ST ANSGAR, IA 1.24
STANLEY 4 W, IA 4.11
STRAWBERRY POINT, IA 4.29
Swisher 0.4 NNE 1.10
TOLEDO 3 N, IA Trace
TRAER, IA 0.80
TRIPOLI, IA 4.76
VOLGA 1NE, IA 5.15
WASHINGTON, IA 0.22
Waterloo 1.0 SW 1.12
Waterloo 1.8 SSE 0.86
WAUCOMA , IA 4.27
Waucoma 3.2 S 4.91
Wellman 4.0 E 0.29
West Fork Cedar River 3 NNE Kesley, IA 0.73
WILLIAMSBURG 3 SE, IA 0.80
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Posted under Flooding, Precipitation Totals

This post was written by Rachael Peart
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Thursday Night Rainfall Totals

July 21, 2017

TOWN 24 HR RAIN TOTAL Thu AM-Fri AM
   
Waterloo (Airport) 0.00
Dubuque (Airport) 0.22
Cedar Rapids (Airport) 0.99
Iowa City (Airport) 0.92
 
Ainsworth 7.4 mi N 0.43
Anamosa 1.9 SE 1.00
Anamosa 3 SSW 1.33
Cedar Rapids 2 NNE 1.98
Cedar Rapids 3 NE 2.03
Cedar Rapids 3.4 mi NW 1.09
Center Point 0.6 NNW 1.69
Central City 6.7 W 0.88
Coggon 1.28
Dysart 0.68
Ely 0.70
Fairfax 4.0 NW 0.90
Fredericksburg 2.55
Grinnell 3SW 0.99
Independence 0.72
Ionia 2 mi W 0.22
Iowa City 0.66
Iowa City 1.4 W 1.15
Iowa City 5 NW 1.54
Iowa Falls 0.28
Kalona 7.3 NNW 0.75
Lowden 0.41
Maquoketa 0.13
Marengo 2.6 SSW 0.31
Marion 1.2 mi NE 1.94
Marion 2.3 ENE 1.73
Monticello 0.25
Mt Auburn 0.45
New Hampton 1.20
New Hampton 0.3 mi NNW 0.68
New Hampton 0.4 mi SW 1.00
North Liberty 1.0 ENE 1.79
Oelwein 0.23
Oelwein 0.8 mi WNW 0.21
Osage 0.08
Sigourney 1.1 W 0.10
Solon 0.3 mi ESE 1.75
Tama (Iowa River) 0.84
Toledo 3 mi N 1.67
Traer 0.58
Tripoli 0.85
Vinton 0.89
Volga 1 mi NE 0.01
Washington 0.41
Wadena 2.50
Waucoma Trace
Waverly (Cedar River) 0.77
Wellman 0.21
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Posted under Precipitation Totals

This post was written by Eileen Loan
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EF-1 Tornado in McGregor

July 20, 2017

NWSChat – NOAA’s National Weather Service

NWS DAMAGE SURVEY FOR 07/19/2017 TORNADO EVENT...

OVERVIEW...A strong wind producing system moved through
northeast Iowa on the afternoon of July 20, 2017. Very 
isolated tornadoes occurred in association with this
system. 

A Tornado Warning was issued for northern Clayton county
including McGregor, IA at 5:54 pm.  


Rating:                 EF-1
Estimated peak wind:    110 mph
Path length /Statute/:  5.7 miles
Path width /Maximum/:   400 yards
Fatalities:             0 
Injuries:               2 - minor

Start date:             Jul 19 2017 
Start time:             6:08 pm 
Start location:         5 miles west of McGregor, IA 

End date:               Jul 19 2017 
End time:               6:16 pm 
End location:           McGregor, IA


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Posted under NOAA, Severe Weather

This post was written by Schnack
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Temperature Drop Due to Storm

July 18, 2017

The high temperature in Cedar Rapids today was 89° at 4:52 pm with a heat index of 100°. An area of rain/storms was moving northeast and approaching the city around 5:30 PM. The downdraft in the storm was pulling cooler air toward the ground. The rain cooled air in the storm resulted in a temperature drop of 17° in less than one hour.  Officially 0.08″ of rain fell at the Eastern Iowa Airport. Farther south into Johnson County, rain amounts were around 1.25″ in one hour.

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Posted under Miscellaneous

This post was written by Schnack
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90 Degree Days

July 18, 2017

Hot and very humid weather is expected through Saturday. Some locations will top 90 degrees a few times this week. I took a look back at how many 90 degrees we have had so far this year and compare that to previous years. At a quick glance, 2012 was hot through the middle of July.

Through July 18th, Waterloo has reached 90 or warmer nine times while Dubuque has only done it two times. Cedar Rapids came close today with a high of 89….so far this year it is eitght days. Today was another day of 90+ for Iowa City with a high of 92. That now takes the number of days of 90 or warmer to 18.

 

 

 

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Posted under Climate, Temperatures

This post was written by Schnack
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Too Many Children are Being Left in a Hot Car

July 17, 2017

On July 15, a 3 yr was left in a hot car and died. So far this year 21 children have died in a hot car. ALWAYS check the back of the car.

Map above courtesy: http://noheatstroke.org/#2015a

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Posted under Heat

This post was written by Schnack
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Lightning Deaths

July 17, 2017

On July 10th, the 6th person in the US this year, has died because they were struck by lightning.


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Posted under Lightning

This post was written by Schnack
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Hot and Humid with Storm Chances

July 17, 2017

The heat and humidity wasn’t too bad today for July standards. That is all about to change in the next 24 hours. The humidity level is on the high-end of the “slightly humid” range of our comfort scale. The humidity level increases Tuesday morning and reaches the “uncomfortable” range as dew points are forecast to reach into the low 70s. If you look at the current dew point temperatures you will see central Iowa already has the dew points in the low 70s.

There is a surface front (see map below) orientated north south across central Iowa. West of the front is the higher dew points.

The front in the Dakotas will drop south tomorrow and stall across northern Iowa. A few showers and storms are possible along the front. The front meanders north and south a little from day  to day. The position of the front and any boundaries left from previous storms will be the focus for storms through the week. The map below is the rain forecast through Thursday evening.

 

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Posted under Update

This post was written by Schnack
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“Northern Lights” may be visible in Iowa Sunday night

July 15, 2017

We don’t get the chance to see them very often, but from time-to-time the “Aurora Borealis”, also known as the “Northern Lights” are visible from Iowa.  That will be the case late Sunday night (after 10 PM) for portions of Iowa, especially the farther north you live.  To catch a glimpse, it’s best to be away from city lights, looking low in the north sky.

The Space Weather Prediction Center has issued a “moderate geomagnetic storm watch” for July 16-17.  Click here to learn more about the Aurora Borealis.

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Posted under Astronomy

This post was written by Kyle Kiel
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