New Year’s Cold Hard Facts

It’s cold.  Brutally cold.  There’s really not much else to say about the weather this weekend.  Record lows will be broken New Year’s Eve morning.

Highs New Year’s Day will be in the single digits above and below zero, with wind chills -15 to -25 throughout the day.

It’s not incredibly uncommon to have below zero temperatures when you wake up New Year’s Day morning.  Here’s a look back at other years with below zero temperatures New Year’s Eve into New Year’s Day.  (Cedar Rapids and Iowa City are not “official” data)



Cedar Rapids

Iowa City



Posted under Holiday, Temperatures, Weather History, Winter Weather

This post was written by Kyle Kiel on December 31, 2017

Saturday Sun Dogs

This weather goes to the “sun dogs.”  A lot of times when we get really cold temperatures in the winter, 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.

Here are some photos set in from viewers.

Jenny Emergy – Waucoma


Karlee Ihde – West Union


Misty Morrissey – Fort Atkinson


Barb Schwamman – Osage, IA


Joyce Meyer – Spillville


Bob Hemesath – Festina


Barb Schwamman – Osage, IA

Jason Guyer – West Union


Ashley Haw – Osage


Lori Luebbers – Sumner


Posted under Optics, Photo

This post was written by Kyle Kiel on December 30, 2017

Snow Reports Friday

The graphic below shows a visual representation of the snow reports (as of 11:30 Saturday) across Iowa from Friday’s snow storm. Note how some areas in southeastern Iowa reported over six inches of snow.

Scattered light snow is possible Saturday night but accumulations will be much lighter than we saw Friday.


Posted under Precipitation Totals, Winter Weather

This post was written by Rachael Peart on December 30, 2017

A Few Snow Reports

It snowed most of the day across a good portion of central and eastern Iowa. Here are some of snow totals.


Posted under Precipitation Totals, Winter Weather

This post was written by Schnack on December 29, 2017

Snow Friday followed by dangerous cold this weekend. 

Tonight will be the “calm before the storm”. Dry weather tonight will come with a light wind as temperatures drop to near zero Friday morning.

A WINTER WEATHER ADVISORY is in effect Friday with snow likely most of the day. Snow begins between 7-10 AM and tapers off between 5-8 PM. The snow will be the powdery nature like it was on Thursday. Snow totals will range from 1-5”.

The wind increases from the north at 10-20 mph Friday causing blowing snow. Saturday morning lows range from 2-9 below zero with wind chills 20-35 below zero.

Saturday and Sunday are bitterly cold with highs near zero or colder. When you factor in the north and northwest wind at 10-20 mph the wind chills during the day will be 15-25 below zero. The coldest wind chills are in the morning. Those could be around 30 or 35 below zero. This is dangerous cold and wind so use caution this weekend.

New Years Eve is dry with temperatures from 5 below zero to 15 below zero (between 5 pm and midnight).


Posted under Forecast Discussion, Winter Weather

This post was written by Schnack on December 28, 2017

Light Snow then Bitterly Cold

Light snow will spread west to east across eastern Iowa tonight beginning around 10 or 11 PM. Light snow will accumulate to around 1” causing slick roads. By sunrise, low temperatures are not as cold as last night. Lows are near zero. The wind is from the southeast at 5-10 mph.

Scattered light snow showers and flurries are possible on and off through the day with an additional trace to 1”. The nature of the snow is very powdery so the 10-15 mph wind from the south will blow it around in the open country keeping roads slick throughout the day. High temperatures warm into the teens.

Thursday night is dry with lows near zero. We are tracking another band of snow for Friday. The best chance of light snow would across the southwestern half of the state. So for eastern Iowa, that means from about Cedar Rapids south and west to see about 1 of snow. Areas northeast would see snow amounts less than 1”.

Saturday is bitterly cold with morning lows near 10 below zero and daytime highs near zero. The wind will be a factor during the day with wind gusts to near 25 mph pushing wind chills to about 25 below during the day.

The bitterly cold air sticks around through Tuesday with highs in the single digits and lows around 10 below zero. There is another chance of light snow/flurries Wednesday.


Posted under Update

This post was written by Schnack on December 27, 2017


Here are the low temperatures from Wednesday morning.


Posted under Temperatures

This post was written by Schnack on December 27, 2017

Bitterly Cold and Light Snow

A WIND CHILL ADVISORY is in effect tonight through noon Wednesday. The wind is not forecast to be strong, but the temperatures are very cold. It doesn’t take much wind to get wind chills to 25 below zero with lows around 10 below. The sky remains clear overnight and mostly sunny Wednesday.

High temperatures only get to about 5 degrees Wednesday afternoon. The wind remains light from the northwest at 5 mph. Clouds increase during the evening with light snow developing around midnight.

Here is a look at the progression of the snow overnight.

Light snow continues overnight with a trace to 3” by morning with the higher amounts across northern Iowa.

Light snow and/or flurries are possible during the day Thursday with little to no accumulations. High temperatures warm into the teens with a south wind at 10-15 mph.

Light snow is possible southwest of Cedar Rapids Friday with highs in the teens before it turns colder Saturday with highs near zero. The gusty wind Saturday might push wind chills to 25 or 30 below zero. Highs remain in the single digits Sunday and Monday. The weekend is dry except for a few flurries Sunday.


Posted under Temperatures, Winter Weather

This post was written by Schnack on December 26, 2017

Dangerously Cold Temperatures & Chance of Snow

Now that many of us have experienced our first inch of snow just in time for Christmas, it’s time to experience some bitterly cold temperatures.

Wind Chills will be down to -25° across portions of eastern Iowa through Tuesday morning.  Similar wind chills may be experienced Tuesday night into Wednesday, as temperatures once again dip below zero.  Daytime highs over the next couple of days will not get out of the single digits for many.  With wind chills this cold, frostbite can happen in less than 30 minutes, so bundle up.

The cold is forecast to last into at least the first week of 2018.

Temperatures “warm”, or will be less cold I guess you could say, by the middle of the week.  That’s when we have a clipper-type system that tracks through and brings a chance for snow late Wednesday into Thursday.  Models differ on the track and amount of moisture with the system, but there is a good possibility of at least light accumulations.  With temperatures being so cold, this would be a light and fluffy snow.  Here’s the probability of an inch or more of snow across eastern Iowa.  We generally sit in the 40% to 70% range.  Stay with KWWL for updates.



Posted under Temperatures, Winter Weather

This post was written by Kyle Kiel on December 25, 2017

Christmas Eve Morning Snowfall Totals

To see an updated version of the map above from the Iowa Environmental Mesonet, click here.

TOWN Snowfall Reports 
Waterloo (Airport) 1.0
Dubuque (Airport) 0.8
Cedar Rapids (Airport) 1.0
Iowa City (Airport) 1.1
Ainsworth 0.8
Cascade 1.0
Cedar Falls 0.5
Cedar Rapids 2.2 WSW 0.5
Cedar Rapids 4 W 0.4
Center Point 0.1
Central City 0.5
Charles City 0.1
Decorah 4.9 SE 0.2
Decorah 6 ESE Trace
Decorah 7.9 ENE Trace
Denver 0.6
Dubuque 0.4
Edgewood 1.3
Evansdale 1.0
Fairfax 0.4
Gilbertville 0.6
Iowa Falls 0.1
Kalona 0.3
KWWL 0.5
Ladora 1.0
Lowden 1.3
Marengo 1.0
Monona Trace
Nashua 0.2
New Hampton 0.3 NNW 0.3
New Hampton 0.4 SW 0.5
North Liberty 0.7
Oelwein Trace
Parnell 1.2
Quasqueton 0.7
Readlyn 0.8
Richmond 0.6
Springville 1.2
Toledo 0.5
Tripoli 0.6
Vinton 1.0
Volga 0.3
Washington 1.1
Washington 1 WSW 1.0
Wellman 0.6
Wellsburg 1.0
Williamsburg 1.0


Posted under Precipitation Totals, Winter Weather

This post was written by Eileen Loan on December 24, 2017