First Significant Snow Of The Season

January 4, 2015

Snow begins early Monday afternoon and tapers off before sunrise Tuesday. Blowing snow will make travel hazardous.

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Significant Snow, Wind and Cold

January 4, 2015

Bitterly cold air will continue to grip the area through the upcoming week.

A wind chill advisory is in effect for the area through 9 a.m. on Monday.  Expect to see wind chills approaching -20 to -30.  Please use extreme caution if you are outside as frostbite can occur in a matter of minutes.

On Monday, a winter storm will be approaching the area from the northwest.   A WINTER STORM WATCH is in effect for much of the KWWL viewing area from noon Monday through 3 a.m. Tuesday.  Snow is expected to start Monday afternoon and may become heavy Monday evening.   Current track of this storm would put a swath of heavy snow across and north of Hwy. 30.   Current snowfall totals are expected to range from 4 to 8″ across the KWWL viewing area.  Winds will be gusty as well causing blowing and drifting snow along with bitterly cold wind chills.

Storm Track 7 Meteorologist Dean Wysocki

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Friday Evening Weather Update

January 2, 2015

Some storms are easier to forecast than others. This one has been more difficult since there are so many different “angles” to the storm. Precipitation type, timing, amount, strong wind, bitter cold (wind chill)…all part of the weekend weather.

There is a light wintry mix developing this evening. This could make roads a bit slick tonight as the precipitation if expected to continue until about 3 or 4 AM.

Blog Graphic 3

There will be a lull in the precipitation early Saturday morning. A light wintry mix is possible early Saturday afternoon. The transition to light snow Saturday night will happen as a cold front swings through the state. The weekend weather is due to two different low pressure centers.

Jan 2 Low Tracks

The best chance of any accumulating snow is Saturday night with accumulations around 1 or 2 inches for all of eastern Iowa.

Jan 2 Snow Probabilty

The best chance of the wintry mix would be areas south and east of Cedar Rapids.

Jan 2 Freezing Drizzle

After midnight Saturday, the wind will increase from the northwest and remain strong through Sunday before diminishing Sunday evening. Temperatures at the time of the strong wind will be mainly in the single digits pushing wind chills in the teens and 20s below zero. The wind will blow any of the snow that feel Saturday night around. Roads may be slick Saturday night and Sunday.

Stay up to date on this ever changing storm, if you have to travel.

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Light Snow Saturday Night…Frigid and Windy Sunday

January 2, 2015

The higher snow amounts, in earlier forecasts, will be lowered due to track of the storm farther to the east. Also a lot of the moisture will be used for thunderstorms to our southeast ahead of the low. 

The best chance of light snow will be Saturday night with accumulations around 1-2” across eastern Iowa. 

A strong northwest wind and cold temperatures remain in the forecast for Saturday night and Sunday. Any snow that does fall will blow around easily making travel hazardous. 

Temperatures will likely fall Saturday night all the way through Sunday into the single digits.

Wind chills will drop into the teens to 20 below zero on Sunday.

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Thursday Evening Weather Update

January 1, 2015

No major changes to the forecast this evening. The only change is a slight northwest shift to the southern side of the heavier band of snow. This takes the 4″+ out of parts of Illinois and Missouri. Other than that, everything is the same from this afternoon. You should expect more wobbles in the track. That will result in the heavier snow band to adjust either NW or SE as we pin down the track of the low in the next 36 hours.

Blog Graphic 1

The chart below shows the temperature decreasing around midnight Saturday while at the same time the wind increases from the northwest. Blowing snow will make for hazardous travel Saturday night and Sunday. Those wind chills will be COLD…teens and 20s below zero. The wind will quickly diminish after 6-8 PM Sunday.

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The current surface map shows the position of the low we are tracking for the snow potential this weekend.

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There are no weather headlines (watch/warning/advisory) from the National Weather Service yet this evening. They want to wait until the low gets into Texas and gets a bit more organized before they “pull the trigger” on issuing anything. At that point they will have a better handle on the intial position of the low as it then starts to turn north. I would anticipate some sort of headline being issued during their morning product update around 2-4 AM Friday.

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A Record Cold Year

January 1, 2015

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Who Is Ready For Snow?

January 1, 2015

Forecast Bar

Tonight: Partly cloudy. Low: 12-17. Wind: NW 5 mph.

Friday: Partly cloudy. High: 28-34. Wind: S 5-10 mph.

Friday Night: Increasing clouds. Low: 18-22. Wind: SE 5-10 mph.

Saturday: Cloudy with an 80% chance of snow. High: near 30.

Sunday: Snow ends early AM then partly cloudy, windy (NW 15-30 mph) and cold. High: (teens before sunrise)…most of the day temperatures will be near 5 degrees. Wind chill: 10-20 below zero with blowing snow.

Monday: Partly cloudy with a 10% chance of light snow late PM. High: single digits.

Tuesday: Mostly cloudy and windy (N 15-25 mph) with a 30% chance of light snow AM. High: near 10.

Wednesday: Mostly sunny. High: single digits.

Thursday: Partly cloudy. High: teens.

Weather Extra Bar

Ready or not we are going to have more snow fall this weekend than we did during the entire month of December. That is not going to be hard. Most locations saw less than 1” of snow in December.

Our weather is going to be dry through Friday night. Low pressure over the southwest part of the nation is forecast to track northeast.

Jan 1 500 Mb Map

The low is forecast to track through Missouri Saturday and head toward Michigan by Sunday morning. Northwest of this track will be the heavier snow. This track puts that heavier snow band across eastern Iowa. This heavier band could receive more than 4” of snow (southeast of a line from Waterloo to Prairie du Chien).

Blog Graphic 1

Any deviation in the actual track compared to the forecast track will adjust the position of the heavier snow band. So keep updated on the forecast for any adjustments.

Here is potential liquid in the storm to be used for snow.

Jan 1 QPF

The snow is forecast to develop mid morning Saturday and taper off early Sunday morning, with the heaviest of snow falling Saturday night. The wind will be light through Saturday evening. Around 10 pm Saturday the wind will increase from the northwest as the surface low crosses the Mississippi River. At this point the wind gusts will be near 35 mph causing blowing snow with reduced visibility and making travel hazardous. The wind diminishes Sunday evening, after 6 PM.

Jan 1 Wind

In addition to the wind and snow it is going to be COLD. Sunday high temperatures will occur shortly after midnight and then drop into the single digits as the sun comes up. Temperatures remain in the single digits throughout Sunday. Combine the wind and cold Sunday and you get wind chills in the teens and 20s below zeronext week will be mainly in the single digits and possible low teens. While at night the temperatures will drop below zero.

Blog Graphic 2

There is another chance for light snow as a quick moving low moves across the state Monday night. Too early on snow amounts, but with it being so cold any amount of moisture will bring some accumulation. Once that low moves east the wind again kicks out of the northwest causing blowing snow and dangerous wind chills Tuesday.

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Dust Devil Before The Rose Bowl

December 31, 2014

This video was taken in fanfest area today, the day before Rose Bowl game.  A Dust Devil causes some people to run from the flying debris. Fortunately nobody was injured.

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Tuesday Evening Weather Update

December 30, 2014

Forecast Bar

Tonight: Mostly clear and cold. Low: -7 to 1. Wind: NW 10-15 mph. Wind Chill: -29 to -10.

Wednesday: Mostly sunny and windy. Highs: 15-20. Wind: SW 15-25 mph. Wind Chill: -5 to 10.

Wednesday Night: Mostly clear and not as cold. Low: 9-12. Wind: W 10-15 mph.

New Years Day: Mostly sunny. High: mid 20s.

Friday: Partly cloudy. High: upper 20s.

Saturday: Mostly cloudy with a 30% chance of snow. High: upper 20s.

Sunday: Mostly cloudy and windy (NW 15-25 mph). High: teens.

Monday: Mostly cloudy with a 20% chance of light snow late PM. High: teens.

Tuesday: Mostly cloudy with a 20% chance of light snow early AM. High: teens.

Weather Extra Bar

Here are some of our Storm Track 7 Live Weather Network stations at 8:45 pM. It is a cold evening and just going to get colder tonight. Wind chills in the teens and 20s below zero later tonight and Wednesday morning. A gusty wind Wednesday will keep it feeling cold all day.

Blog Graphic 1

After the real cold passes, temperatures are forecast to warm to the upper 20s for Friday and Saturday. I am tracking the possibility of snow to impact the area Saturday. It is too early for any details: timing, how much and where. One computer model update shows snow across Iowa. We will see how this trends over the next few days. Something I will be tracking.

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After the Saturday storm moves away, another round of very cold air moves in with highs in the teens for a few days. If there is snow on the ground temperatures may be colder than that. We will have to wait and see on that at this point.

 

 

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Tuesday Afternoon Weather Update

December 30, 2014

Another cold night ahead with wind chills 10 to 29 below zero late tonight and early Wednesday morning. Dry weather will continue through the rest of the week. The next chance of any precipitation will be Saturday with a chance of light snow. High temperatures by then will be near 30 degrees. It turns colder Sunday through early next week again with highs in the teens.

A WIND CHILL ADVISORY is in effect tonight.

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Here are the wind chills as of 4 PM.

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