Backward-flowing Waterfall

Our windy conditions are sticking around because the low can’t track past the Great Lakes right now. This is due to a large storm in the North Atlantic that just slammed into Scotland yesterday. It has wind gusts reported as high as 91 mph, causing trucks to tip over and ripping parts of roofs off of buildings. It also caused a couple of waterfalls to go the wrong way!

http://www.telegraph.co.uk/news/weather/12136476/Storm-Henry-causes-backwards-waterfall-on-Isle-of-Mull-Scotland.html


What do you think of that?

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This post was written by Schnack on February 9, 2016

Tracking Snow Showers & Wind

Wintry weather makes its return beginning tonight. A potent clipper system tracks to our north, and brings us scattered snow showers, windy conditions, and colder temperatures. Roads could be slick due to refreezing from the melting snow as well.

DMA WatchesWarningsAdvisories

Tonight, the wind picks up out of the NW between 15 and 25 mph, gusts could be 35mph+ at times. We will also be tracking scattered snow showers that will be wind driven, and the snow that’s already on the ground in northwest portions of the viewing area will be blown around, creating reduced visibility. Blizzard Warnings and Winter Weather Advisories are in places for northern and western portions of the viewing area through Monday evening. The worst conditions will be outside the KWWL viewing area.  The worst of the blizzard-like conditions will be northwest of the KWWL viewing area.

Snow Forecast DMA Hand

Total snow accumulations will be trace to 1″, with isolated 2″ possible

Winds will stay strong through Tuesday with bitterly cold air settling over us for a few days. Highs will only be in the low teens with lows dipping below zero Wednesday morning. Wind chills Wednesday morning could be 15 to 25 below zero.

Travel is expected to be hazardous tonight and tomorrow morning over most of the viewing area, but especially along and north of Highway 20.

Definition Blizzard

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This post was written by Kyle Kiel on February 7, 2016

Near Blizzard Conditions Late Sunday & Monday

A Blizzard Watch is out for northern parts of the viewing area, not because of heavy snow, but for the winds whipping around the snow that is already on the ground.  The watch is for Chickasaw, Black Hawk, Bremer, Butler and Grundy counties from 3 PM Sunday to 6 PM Monday.

DMA WatchesWarningsAdvisories

Sunday will be partly to mostly cloudy and windy.  A clipper system moving to our north will bring very gusty winds during the day, with snow showers possible later in the afternoon.

Winds will be out of the west on Sunday from 10 to 20+ mph, with gusts 35+ mph possible in the afternoon.  Near whiteout conditions are possible late Sunday and into the day on Monday.

PLEASE REMEMBER: A blizzard, by definition, does NOT have to do with the amount of snow that falls.

Definition Blizzard

The better chance for scattered snow showers will be Sunday night and Monday.  Snowfall amounts will be anywhere from a couple tenths to about an inch, with one to two inches possible in northeast Iowa.  Again, the snow will be blowing around creating travel issues.

Snow Forecast DMA Hand

Winds will stay strong into Tuesday before the system tracks away from us.

Stay tuned to KWWL and KWWL.com for the latest as we track this storm system.

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This post was written by Kyle Kiel on February 6, 2016

Not Very Often

This has been a strange winter so far when it comes to storms producing heavy snow. We don’t get heavy snows in Iowa like they did on the east coast last week.

7

We don’t have a large moisture source right next to us. Most of the storms we see around here produce less than 10″ of snow.  The winter of 2015-2016 has been a bit different. So far, Waterloo has had two storms dump 10″ of snow or more.  The first one was on November 20, 2015 when 10.5″ of snow was measured. The second one was on December 28, 2015 when 10.1″ of snow was measured.

Since records have been kept, as far back as 1895, 10″+ snow has fallen in a calendar day (midnight to midnight) 14 times . Just 14 times and two of them were this winter. The most snow was on November 30, 1934 when 14.0″ of snow fell.

Ok, so maybe there were more storms than just 14 that produced 10″+ of snow in two calendar days. Example would be if the snow began one day and ended the next and combined there was 10.”+.  Lets take a look at those numbers.

A storm spanning over two-days (snow before midnight and after), producing 10″+ of snow as happened 25 times. Again two of those were in the 2015-2016 winter (this winter). The most was when 15.8″ of snow fell on January 3-4, 1971.

One more interesting fact…yes 10″+ has fallen two times this winter…the only other winter with two 10″+ events was during the winter of 1930-31.

The forecast is for heavy snow across parts of Iowa Tuesday and Wednesday. It will be interesting to see if it will be #3 for this winter.
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This post was written by Schnack on January 28, 2016

Wintry Weather Returns Monday

Clouds will continue during the overnight hours, and with low level moisture there will be areas of fog and drizzle/freezing drizzle.  This will create slick spots on the roads, especially on untreated surfaces.

A Winter Weather Advisory is in effect for the northern half of the KWWL viewing area beginning at 6AM Monday and lasting through Midnight in most areas.

Winter Weather Advis

The drizzle and freezing drizzle continues throughout the morning hours on Monday.  We are tracking an area of low pressure that will bring a wintry mix of rain, sleet and/or snow starting early afternoon, with everyone switching to snow by late afternoon into the evening.

The snow will continue through about midnight with a trace south, to as much as 2 inches northeast.  We can’t rule out a few areas in extreme northeast Iowa seeing more than 2″.  This all depends on where the heavier bands of snow set up.  Any accumulation from freezing drizzle will be light.  Use caution when traveling.  Highs tomorrow will be in the low 30s with falling temperatures in the afternoon.

Snow Forecast DMA Hand

The wind will pick up Monday night, creating some blowing snow which will also impact the roads.  Tuesday there could be a few flurries, otherwise it will be cloudy and breezy with temperatures in the 20s.  Temperatures are back in the 30s by Thursday.

Stay with KWWL for further updates.

www.kwwl.com/weather

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This post was written by Kyle Kiel on January 24, 2016

Colder Air by Mid January

We had a seasonable first weekend of 2016 with high temperatures in the 20s, and low temperatures in the teens.  Temperatures will remain seasonable for the first part of the work week, and we will even see temperatures climb slightly above normal by the end of the week.

We are tracking a weak system that could bring scattered flurries and light snow showers late in the day on Wednesday with only trace amounts of snow expected.  We are tracking another system Thursday through Saturday that is forecast to bring a mix of rain and snow, and potentially freezing rain.  Temperatures are forecast to warm above freezing for a time on Thursday, switching any mixed precipitation over to rain.  Cooler air wraps around the storm system Friday and Saturday, changing any rain over to snow.  Right now light accumulations are possible.  It’s still a little too early to forecast amounts.
NOAA Outlook Temp 8 to 14 days

After that storm system tracks out, a big dip in the jet stream is expected to bring down very cold air from Canada.  In fact, we are talking about the coldest air of the winter season so far.  There is the potential for below zero low temperatures, with high temperatures by the middle of next week possibly not getting out of the single digits.

Stay tuned to KWWL for more updates.

www.kwwl.com/weather

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This post was written by Kyle Kiel on January 3, 2016

Winter Storm Update Monday Evening

The dangerous winter storm continues to bring snow, sleet and areas of freezing rain to the KWWL viewing areas.  As the center of the storm tracks to our east, we will see cooler air wrap around the system changing any mixed precipitation over to snow later this evening.
 Threats Winter 2
Snowfall will be moderate to heavy at times, and snowfall rates could be up to 1″ an hour.  There will also be gusty winds creating reduced visibility and causing the snow to blow around on the roadways.  If you have to head out, use extreme caution and allow plenty of time to get to your destination.
The snow will continue into the first half of the overnight before winding down at midnight.  Winter Storm Warning continues until 6 AM Tuesday.  Total snow accumulations will be 1-4″ in the southeastern part of the viewing area, 4-6″ in the center part of the viewing area, and from Waterloo, Oelwein and Elkader northwest there will be 6-10″ with isolated areas getting a foot.
Snow Forecast DMA Hand
There could be a few snow showers and flurries on Tuesday, but no accumulation expected.  After another chance for snow showers Wednesday, temperatures turn very cold as we enter the new year.

Stay tuned to KWWL on air, online and on social media throughout the night as we will keep you updated on the storm tracking through the KWWL viewing area.

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This post was written by Kyle Kiel on December 28, 2015

Update on Monday Winter Storm

A Winter Storm Warning will go into effect across the entire KWWL viewing area Monday morning.  Snow, sleet, freezing rain and wind will cause major travel issues.
Winter Weather Advis

Overnight we will have increasing clouds across the areas, and the wind will pick up out of the north from 10 to 20 mph.  Between 1 AM and 3 AM, a wintry mix of snow, sleet and/or freezing rain will being to track into the southern areas, such as Sigourney, Washington, Williamsburg and Iowa City.  Between 7 and 9 AM, the wintry precipitation will be making its way north areas along Highway 20.  This means the Monday morning commute will likely be tricky.  By mid-morning, all of eastern Iowa will be in the midst of the winter storm.

Threats Winter 2

The best chances to see ice accumulation from freezing rain will be from Highway 30 and points to the south, where a tenth to quarter of an inch of ice accumulation is possible.  Areas north of Highway 30 could see up to a tenth of an inch of ice.  Remember, it does not take much ice to create hazardous conditions on the roadways.

Ice Forecast DMA Hand

Farther to the north, it will be more of a sleet and snow mix, before we all transition to snow by the late afternoon and early evening hours.  Snow totals will have a widespread range across the area.  From at least an inch in our far southeast, to at least 8 inches in the far northwest.  There could be isolated higher amounts in our northwestern areas.  *Note*: These will likely be adjusted  as the storm system evolves.

Snow Forecast DMA Hand

Again, this is a very tricky forecast and snow/ice amounts will be dependent on surface temperatures and when the switch from freezing rain to snow occurs. Confidence is high that travel will become difficult quickly across the state Monday.

Stay tuned to KWWL on air, online and on social media throughout the weekend as we will keep you updated on the potential for a winter storm on Monday, December 28.

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This post was written by Kyle Kiel on December 27, 2015

Winter Storm Watch for Monday

A Winter Storm Watch is in effect for the entire KWWL viewing area, beginning early Monday morning.

Winter Weather Advis

The exact details on the track of the system are tricky, but we do know that freezing rain, sleet, snow and wind are all in the forecast across eastern Iowa, with some areas getting all of the above.

An area of low pressure will track from Texas up to the Midwest, bringing with it plenty of moisture.  This means the likelihood for heavier precipitation is quite high.  This system will have quite a bit of wind with it as well, with wind speeds sustained 20 to 30 miles per hour, gusting 45 mph at times.  This will create very tricky travel conditions on the roads, and could cause damage to trees and power lines.  This will especially be the case for areas that get icing.
MW Storm Track

As it looks late Saturday afternoon, snow, freezing rain and/or sleet will track into our southern counties after 3 AM on Monday.  Temperatures will be near freezing, so the rain will turn into ice as it falls.  As the precipitation moves to the north throughout the day and lasts into the night, temperatures will be cold enough for sleet and/or snow as you go north of Highway 20.  This is preliminary, but ice accumulations could be a tenth to over a quarter of an inch from Highway 20 south, with up to a tenth of an inch of ice north of Highway 20.
Precip Forecast DMA Hand
As far as snowfall goes, at least 1 to 4 inches of snow is possible from Highway 30 south, with at least 4 to 8 inches of snow accumulation north of Highway 20.  We will have a more clear idea on totals as we get closer to the storm.
Snow Forecast DMA Hand

Stay tuned to KWWL on air, online and on social media throughout the weekend as we will keep you updated on the potential for a winter storm on Monday, December 28.

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This post was written by Kyle Kiel on December 27, 2015

Friday Snow Showers

We had a weak disturbance that tracked through eastern Iowa on Friday, which had just enough moisture to produce bursts of snow showers through the KWWL viewing area, especially across the north.  Generally a trace to a few tenths of an inch of snow were reported, but it was just enough to cause slick spots on the roadways.  The temperatures have been cool enough over the last few days that road temperatures have dropped quickly below freezing (the pink numbers on the map below are road temperatures).  Air temperatures drop to the lower teens Friday night.

roads

Here are a few pictures sent in from viewers, showing the roads being covered with a little bit of snow.

Viewer Photo 4 Hot Shot 4 Hot Shot 3 Viewer Photo 7

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This post was written by Kyle Kiel on December 18, 2015