Reports from April 18, 2018 Snow/Sleet/Rain/Freezing Rain/Thunder/Graupel/Rainbow Event

We had a little bit of everything yesterday as an April winter storm tracked through the KWWL viewing area. A few saw a rainbow in Bremer and Black Hawk Counties and we even had a severe thunderstorms within the snow/sleet that produced some hail. Freezing rain, rain, sleet, snow, graupel (a type of precip that looks like tiny pellets of styrofoam), hail all fell from the sky yesterday morning before transitioning to mainly snow. The mix cut down on snowfall amounts but areas in the north had mainly snow, so totals were much higher.

TOWN 24 HR SNOW TOTAL through 9 AM Thursday
Waterloo (Airport) 4.0
Dubuque (Airport) 2.9
Cedar Rapids (Airport) Trace
Iowa City (Airport) Trace
Anamosa 2.5 mi SSW 0.9
Belle Plaine Trace
Bluffton 8.0
Bluffton 3ESE 8.8
Calmar 6.8
Cascade 1.5
Cedar Falls 3.0
Central City 6.7 W 1.5
Charles City COOP 6.6
Clayton Center 3.0
Coggon 1.9
Coralville 1.3 SE Trace
Coralville 1.4 S 0.2
Cresco 9.5
Cuba City, WI 2.0
Decorah 6.0
Decorah 4.9 SE 5.8
Decorah 7.9 mi ENE 8.0
Denver 3.0
DeSoto, WI 10.0
Dorchester HWY 76 10.0
Dubuque L&D 11 1.7
Dubuque #3 2.8
Dysart 1.4
Edgewood 2.5
Elkader 6 mi SSW 2.8
Elma 4.8
Elon 4.8
Ely 0.1
Fairfax 4.0 NW 0.1
Fayette 3.6
Fayette 2 NNW 4.8
Fort Atkinson 5.0
Fountain Springs 2.5
Grundy Center 1.0
Guttenberg Dam 10 3.0
Hampton 6.0
Harpers Ferry 2 N 6.5
Hesper 9.0
Iowa Falls 2.0
Jesup 3.0
Manchester 2.4
Maquoketa 4 W 0.7
Monona 5.1
Nashua 5.8
New Albin 4.5
New Hampton COOP 8.0
New Hampton 0.4 mi SW 7.3
Nora Springs 6.0
North Washington 5.8
Plainfield 4.5
Postville 5.5
Quasqueton 0.4 WSW 2.5
Rickardsville 0.2 W 2.7
Ridgeway 5.5
Solon 0.3 mi ESE 0.2
St. Ansgar 9.6
Stanley 4 mi W 2.0
Strawberry Point 3.6
Toledo 3 mi N 2.0
Tripoli 4.8
Vinton 1.0
Volga 1 mi NE 4.1
Waterloo 1.8 mi SSE 4.0
Waucoma 5.0
Waukon 7.2
West Union 0.2 mi NE 4.8
Williamsburg Trace



Posted under Precipitation Totals, Uncategorized, Winter Weather

This post was written by Eileen Loan on April 19, 2018

Saturday Snowfall

Here are the snowfall totals from Saturday morning into the early afternoon.

Town Amount
Waterloo 0.6
Dubuque 1.0
Cedar Rapids 1.8
Iowa City 1.8
2 NNE Cedar Rapids 1.7
2 WSW Iowa City 1.7
3 W Cedar Rapids 1.0
Anamosa 1.8
Belle Plaine 1.5
Cascade 1.0
Cedar Falls 0.8
Denver 0.6
Lowden 2.4
Mount Vernon 1.8
North Liberty 1.5
Solon 2.0
Springville 1.7
Williamsburg 1.0

Posted under Precipitation Totals, Uncategorized, Winter Weather

This post was written by Kyle Kiel on February 17, 2018

Snow Totals Thursday Night & Friday Morning

Here are the latest snowfall totals from Thursday night to Friday morning (9 AM) across eastern Iowa.  The heavier band of snow set up a little farther north than originally forecast, with a sharp cut-off to the south of Highway 20.

Town Amount
Waterloo (Airport) 6.0
Dubuque (Airport) 4.4
Cedar Rapids 3.2
Iowa City 3.0
1 SSE Waverly 3.0
Ainsworth 2.0
Allison 3.0
Anamosa 1 ENE 3.7
Aredale 3.0
Belle Plaine 1.0
Bluffton 4.0
Cascade 4.0
Cedar Falls 6.5
Center Point 0.6 NNW 3.4
Central City 6.7 W 4.0
Charles City 6.0
Clarksville 1.5
Coggon 4.2
Decorah 7.9 mi ENE 5.0
Delhi 8.0
Dickeyville, WI 2.8
Dubuque 2 WNW 4.8
Dubuque 3 SW  6.0
Durant 2.0
Edgewood 5.0
Eldora 7.0
Elizabeth, IL 4.4
Elk Run Heights 2.5
Elkader 3.0
Fayette 5.7
Fayette 2 NNW 5.5
Galena, IL 4.0
Grundy Center 5.5
Guttenberg 5.5
Hampton 4.5
Harpers Ferry 6.0
Ionia 2 W  4.0
Iowa Falls 8.5
KWWL-TV (Downtown Waterloo) 5.5
Lancaster, WI 2.5
Lawler 1.8
Lowden 2.6
Manchester 5.6
Monona 5.4
Monticello 4.0
Mount Vernon 3.0
Muscoda, WI 6.0
Nashua 4.0
New Hampton 6.0
New Hampton 0.4 SW 4.5
New Hampton COOP 4.5
Oelwein 5.5
Parnell 1.0
Parnell 0.1 WNW 1.0
Prairie du Chien 3.8
Prairie du Chien, WI 1 NW 3.0
St. Ansgar 3.2
Stanley 4 mi W 7.0
Stanwood 1.5
Strawberry Point 5.0
Toledo 2.5
Traer 3.5
Tripoli 5.2
Vinton 3.0
Volga 1 mi NE 6.5
Waterloo 1.0 mi SSE 4.8
Waukon 5.5
Wellman 1.3
West Union 4.5
Wyoming 4.0

Posted under Uncategorized

This post was written by Kyle Kiel on February 9, 2018

Accumulating Snow Monday

It’s the calm before the snow on this Super Bowl Sunday.  Tonight will be mainly clear, with lows dropping below zero across much of the KWWL viewing area.  Fortunately, the wind will be relatively light out of the northwest, turning south at 5 mph.

WINTER WEATHER ADVISORY is in effect for all counties Monday, excluding Winneshiek and Allamakee counties.  Those two counties will have 1-3″ of snow, with 3-6″ of snow across the rest of eastern Iowa.  A heavier band of snow will likely set up somewhere between Highway 30 and Interstate 80, where isolated higher amounts are possible.

The snow moves in by late morning, overspreading all of eastern Iowa during the afternoon.  This is when we are expecting the heaviest period of snow.  The snow will come to an end from west to east by early to mid evening.


Here’s the Storm Track 7 Snowfall Forecast:


Posted under Uncategorized

This post was written by Kyle Kiel on February 4, 2018

Seasonal Snowfall

It’s been a relatively tame winter season, as far as snowfall goes (as we know, it’s a different story with the temperatures).  The southern part of the United States have experienced a couple bouts of wintry weather.  Here in Eastern Iowa, Waterloo and Dubuque have received a little more than 9″ of snow.  Some portions of the south have received just a few inches less.

Here’s a look at the seasonal snowfall (so far) for the United States.


Posted under Precipitation Totals, Uncategorized, Winter Weather

This post was written by Kyle Kiel on January 19, 2018

Wednesday Sundogs

Many times in winter when we get very cold temperatures, we see sun dogs around sunrise and/or sunset.  This happens when the light from the sun refracts off of ice crystals in the upper levels of the atmosphere, generally within cirrus clouds.  That was the case Wednesday, where sundogs were seen at sunrise and sunset.

Here are some viewer pictures sent to us.

Eric Johnson – Waterloo

Amanda Smith – Evansdale

Bill Goecken Wellsburg

Brandi Thompson

Brittany Gronewold – Ackley

Cass Grey – Cedar Falls

Charles Dostale – Waterloo

Charlie & Judy Harrington Hewitt

Cheryl Schuster – West Union

Deann Fox – Stanley

Eric Johnson – Waterloo

Grace Stickfort – Cedar Falls

Jeff Stee – Clermont

Kyle Purk

Lynel Willis – Shell Rock

Meagan Slee

Melissa Ladesma – Waterloo

Nathan Folkerts Wellsburg

Schoshe Holmes – Hudson

Todd Buck – Highway 63

Vic Buckley – Waterloo

Zach Barnett


Posted under Uncategorized

This post was written by Kyle Kiel on January 3, 2018

Wintry Weather Thursday

The first day of astronomical winter is going to bring a mix of wintry weather across eastern Iowa.  Tonight, our sky will be mostly cloudy with lows dropping into the lower and middle 20s with a southeast wind 5-10 mph.  Thursday morning, there is the potential for freezing drizzle across eastern Iowa.  Although we aren’t expecting heavy precipitation, as you know, it does not take much of a glaze to cause some problems on the roads and sidewalks.  You might want to allow a little extra time for your morning drive.

Throughout the day, moisture will increase, leading to a light wintry mix across eastern Iowa.  It may initially start off as rain south of HWY30, but as temperatures cool throughout the afternoon, freezing drizzle will transition to a light wintry mix, and eventually snow.

North of HWY 20, the transition to snow will happen sooner.  That’s where light accumulations, up to an inch, are possible.  Most locations south of HWY 20 will have a trace of snow, and a light glaze of ice.


The evening commute will be more impacted, especially across the south.  Behind this system, colder air begins to filter in.  A few lingering flurries or snow showers are possible Friday.

There is a slight chance for snow, especially across southern Iowa on Sunday, and then a couple more chances next week.  Still some uncertainty on how those systems will impact Iowa, so stay tuned for further updates.


Posted under Forecast Discussion, Uncategorized, Winter Weather

This post was written by Kyle Kiel on December 20, 2017

Meteorological Winter

December 1st marks the beginning of Meteorological winter; the three coldest months out of the year climatologically.  (December, January, February)

The first few days of December will be above average, but by next week through the middle of the month, temperatures are forecast to be at or just below average.


Posted under Uncategorized, Winter Weather

This post was written by Kyle Kiel on December 1, 2017

Northwest Low

Here is a look at a large area of low pressure spinning off the northwest coast on Wednesday November 8.

Click here to see the animation of the above image.


Posted under Uncategorized

This post was written by Schnack on November 9, 2017

Record Breaking Heat

It was a record breaking weekend as far as the warm temperatures went across portions of eastern Iowa.  Record high temperatures were broken both Saturday and Sunday. (September 23rd and 24th).

Record highs will not be in jeopardy Monday, but it will still be much warmer than average.  More fall-like temperatures are forecast by the middle of the work week.


Posted under Uncategorized

This post was written by Kyle Kiel on September 24, 2017