Posts Tagged ‘Winter Weather Advisory’

Biggest Snow Since Early December

ORIGINAL POST:  Sunday, March 12, 2017, 4:34 p.m.

As of late Sunday afternoon, light snow is falling across central Iowa.

Afternoon Snow.jpg

Snow will spread into eastern Iowa this evening and into the Quad Cities and across the Mississippi River by 8-10 p.m.

The heaviest of the snow will fall late tonight and early  Monday.

I’m still good with my morning snow total forecast.  Some locations may be off by an inch or so.  But, if we get into that ballpark range, I’m good with the prediction.

Sunday Snotals Update

Much colder air will move in with the freshly fallen snow.  Lows by Wednesday morning could drop into the single digits!

Warmer weather returns by the weekend.

I’ll see you bright and early Monday on “Local 4 News This Morning” from 5-7 a.m. with the latest on the winter storm.

Anthony

ORIGINAL POST:  Sunday, March 12, 2017, 5:23 a.m.

Moderate to heavy snow is on the way to eastern Iowa and northern Illinois later Sunday into Monday.

A “Winter Weather Advisory” goes into effect Sunday evening and will run through Monday evening.

WWA.jpg

The storm system that’ll bring us the snow is located over Montana early Sunday.  This clipper will quickly race southeastward to south-central Iowa by Monday morning and to near St. Louis, Missouri, by midday Monday.

Since the heaviest of the snow usually falls to the north of the low pressure system, the Mississippi and Illinois Valleys are primed for the biggest snow of season since early December!

TIMING

Light snow will break out across the Midwest today and spread into eastern Iowa by late Sunday afternoon.

This snow  will reach the Quad Cities and the Mississippi River by evening.

Snowfall will become moderate overnight into early Monday morning.  There will be periods of heavy snow around daybreak Monday.

By midday Monday, the heaviest of the snow should be south of us.  However, light snow will continue into Monday evening and end Monday night.

BIGGEST SNOW SINCE EARLY DECEMBER

This storm system will be the biggest the area has seen since December 4, 2016, our first snow of the season.

That day, 10.2″ of snow fell in Davenport, Iowa, and 7.8″ accumulated in Moline, Illinois.

In the three months since then, Davenport has only picked up 8.9″ of snow and Moline saw 8.7″!

SNOWFALL AMOUNTS

Here are my forecast snotals (“snow totals”) for Sunday evening through Monday evening.

So, just find your hometown and that’s how much snow you’ll be shoveling!.

Sunday Snotals Update.jpg

Again, the heaviest of the snow will fall Sunday night and early Monday.

I’ll have another update later this afternoon and let you know if anything changes.

Anthony

Major Winter Storm For Parts of Iowa

We’re down to the last week of January 2017 and we still haven’t had a measurable snow in the Quad Cities.

Our last sticking snow in the metro area was more than a month ago.  On December 17, 2016, 2.7″ of snow fell in Moline and 2.5″ accumulated in Davenport.

A winter storm moving out of the Plains today and across Iowa tomorrow will bring rain this afternoon.  This will be a wintry mix in our northern hometowns tonight and Wednesday.

rain-snow

By Wednesday afternoon, as this system moves to the Great Lakes, we’ll see a transition to all light snow for eastern Iowa and northern Illinois, especially Wednesday night.

Accumulations in our northern hometowns, around Galena, Illinois, and Maquoketa and Dubuque, Iowa, could be around an inch or two by Thursday morning.

As it looks now, the Quad Cities might see a dusting or so of snow by Thursday morning.

However, if you’re traveling to Waterloo, Iowa, 3-6″ of snow will fall there.  A “Winter Weather Advisory” goes into effect Tuesday afternoon through Wednesday evening.

warning

A “Winter Storm Warning” covers much of northern Iowa, where more than 6″ of snow will be falling.  Parts of northwestern Iowa could pick up a foot of snow!

After this storm, colder weather is on the for the rest of the week into the weekend.

Anthony

Dangerous Icing Tonight & Early Monday

UPDATED POST:  Sunday, January 15, 2017, 6:09 p.m.

Right now, light freezing rain is being reported from Ottumwa to Fort Madison, Iowa, to Macomb, Illinois.

In the afternoon update, all of eastern Iowa and northwestern Illinois will be under the “Winter Weather Advisory” at some point tonight into Monday.

The importance of this is that all of us will see freezing rain.  The only differences across the area will be the start and end times for the “Advisory”.  That also coincides with the timing of when the worst of the icing will be taking place.

 

With that being said, just go through this list of Iowa and Illinois counties until you find yours and that’ll let you know the hours when the worse icing will take place.

The “Winter Weather Advisory” is already underway for Des Moines, Henry, Jefferson, and Washington counties in Iowa, and for Henderson and Warren counties in Illinois.  This will expire at 9 a.m. Monday.

Knox and Stark counties in Illinois will go into the “Advisory” at 6 p.m. Sunday and this will run through noon Monday.

From midnight Sunday through noon Monday, the “Advisory” covers Cedar, Johnson, Louisa, Muscatine, and Scott counties in Iowa and Bureau, Henry, Mercer, and Rock Island in Illinois.

The “Advisory” now starts at 3 a.m. Monday through noon Monday for Clinton and Jackson counties in Iowa and for Carroll and Whiteside counties in Illinois.

It also runs from 3 a.m. to 3 p.m. Monday for Jo Daviess County, Illinois.

Anthony

UPDATED POST:  Sunday, January 15, 2017, 11:21 a.m.

The start time for the “Winter Weather Advisory” (blueish-purple shading) for some of us has been pushed back again.

It still goes into effect at 3 p.m. today through noon Monday for Des Moines, Henry, Jefferson, and Washington counties in Iowa, and for Henderson and Warren counties in Illinois.

It now runs from midnight Sunday through noon Monday for Cedar, Johnson, Louisa, Muscatine, and Scott counties in Iowa and Henry, Mercer, and Rock Island in Illinois.

The “Advisory” now starts at 3 a.m. Monday through noon Monday for Clinton and Jackson counties in Iowa.

Anthony

ORIGINAL POST:  Sunday, January 15, 2017, 6:45 a.m.

The highly-anticipated ice storm I’ve been talking about for over a week now will arrive later today.

The worst of the icing and hazardous driving conditions will be Sunday night and the first half of Monday.

 

Winter advisories and warnings Sunday extend from the Rockies (for heavy snow) to Iowa and Illinois (for mostly ice).

This winter storm is still located over the southwestern United States and is already bringing icy weather to the Plains early Sunday morning.

As of this posting, the heaviest icing in still across southern Missouri and Kansas. This will be moving northeast today.

If you still have errands to run or if you’re heading off to church, most of Sunday morning is still expected to be dry.

The start times for the advisories remain unchanged from my Saturday evening update.

 

A “Winter Weather Advisory” (blueish-purple shading) goes into effect at 3 p.m. today through noon Monday for Des Moines, Henry, Jefferson, and Washington counties in Iowa, and for Henderson and Warren counties in Illinois.

The “Advisory” runs from 6 p.m. today through noon Monday for Knox and Stark counties in Illinois.

And,  the “Advisory” starts at 9 p.m. Sunday and expires at noon Monday for Cedar, Clinton, Jackson, Johnson, Louisa, Muscatine, and Scott counties in Iowa and Henry, Mercer, and Rock Island in Illinois.

Ice Ray

WINTRY MIX START TIMES

While there may patchy light snow, sleet, or freezing rain moving in late morning, I think our southern hometowns from around Fairfield and Burlington, Iowa, to Monmouth and Galesburg, Illinois, will see the more general wintry mix begin around 2-5 p.m.

The more concentrated wintry mix and icing event moves northward to the Quad Cities and along and south of Interstate 80 from around 5-8 p.m. Sunday.

It should reach northern hometowns by midnight and this may be mostly light snow there, at first.

As temperatures warm south to north Sunday night, the wintry mix will become mostly a freezing rain event.

Temperatures by late morning Monday will be rising above freezing, so rain will fall and the ice will slowly melt.  However, it may take until early afternoon for this to occur.  I wouldn’t be surprised if some of the “advisories” are extended into Monday afternoon.

ICE AMOUNTS

I’m still expectng around one-tenth of an inch of ice to accumulate for most of us.

The heaviest coating of ice, up to one-quarter of an inch, will be to the southwest of the Quad Cities.

 

One final note is that winds are not going to breezy with this storm, so even when we get a coating of ice on trees limbs and power lines, it won’t be whipping them around increasing the chances of power outages.

The bottom line is that most of Sunday morning is still expected to be dry.  You still have some time to run to the store to buy last minute groceries or supplies!

Snow's a comin'

Also, it’s always wise to have plenty of gas in your car in case you’re in an accident.  You’ll want to be able to turn the heat on, occasionally, until service crews and rescuers get to you.

I’ll monitor the start of the wintry mix and icing and update you, as needed, today.

Anthony

Snow & Ice Likely Friday & Saturday

UPDATED POST:  Friday, December 16, 2016, 4:37 p.m.

Light freezing rain and light snow are already being reported across Iowa and Illinois Friday afternoon. This will make roadways slippery tonight.

After a break in the wintry mix later tonight into Saturday morning, a strong cold front blasts through the area early Saturday afternoon and temperatures crash into the single digits shortly after dark and well below zero into Sunday morning.

This front will also bring several hours of light to moderate snow and this is when we’ll see our main accumulation.  Unfortunately, it’ll also be blown around by strong winds causing driving nightmares.

Snowfall totals below are still on target.

I’ve also been talking about the dangerous wind chills that will rush in as the storm departs.

Here are the counties that will be under a “Wind Chill Advisory” and a “Wind Chill Warning” from 9 p.m. Saturday through noon Sunday.

It’ll feel like -20° to -40° during this time!

Be safe out there this weekend!

Anthony

ORIGINAL POST:  Friday, December 16, 2016, 5:49 a.m.

The third weekend winter storm in as many weeks gets underway Friday and will last through much of Saturday.

Bitterly cold temperatures and dangerous wind chills follow Saturday Night through Monday morning.

A “Winter Weather Advisory” goes into effect at noon Friday across our northern hometowns and for the rest of the Mississippi and Illinois Valleys Friday evening.  This advisory runs through midnight Saturday.

wwa

After a quiet Friday morning, light snow will develop in our western and southwestern hometowns later this morning.  The snow spreads across all of the area Friday afternoon into Friday night and early Saturday.

It’s looking more likely that warmer air will be pulled into this system along and south of Interstate 80.  This will cause the snow to mix with and change over to sleet and then freezing rain.

Across our northern hometowns, it’ll stay in the form of snow.

We get a break from the snow and wintry mix Saturday morning, but snow will re-develop again by Saturday afternoon and last for about six hours.

This is when we’ll see most of our snow accumulation.  The snow ends by midnight Saturday night.

snow-12-16-16

The heaviest snow will be from Maquoketa, Iowa, to Mount Carroll, Illinois, northward.  Four inches or more will accumulate there.

Along Interstate 80 and in the Quad Cities, I still think 2-4″ of new snow will fall.

South of the Quad Cities from around Burlington, Iowa, to Monmouth and Galesburg, Illinois, an inch or two will fall, but they’ll also see some light ice accumulations.

BITTER COLD FOLLOWS

On top of the snow (and ice) accumulations, bitterly cold temperatures and dangerous wind chills return.

When you wake up Sunday and Monday mornings, lows will be around -10° in the Quad Cities and even colder to the north.

Once you factor in the wind, it’s going to feel like -20° to -40°.  It only takes minutes for frostbite to set in.

Highs Sunday will stay below zero to the north and near zero in the Quad Cities.  Southern hometown will rise to the single digits.

By the middle of next week, temperatures will rebound back into the 30s.

Anthony

Icy Mix & Snow Threat Monday

UPDATED POST:  SUNDAY, FEBRUARY 16, 2014, 4:01 p.m.

A winter storm starting out with freezing rain, sleet, and snow and then changing over to all moderate to heavy snow is still in the forecast early Monday morning into Monday afternoon.

Here are the updated snow forecast totals for Monday.  The biggest change has been to shift some heavy snow into our southern hometowns.

Snow Update 021414

You can see the original contours and the details below.

Anthony

ORIGINAL POST:  SUNDAY, FEBRUARY 16, 2014, 8:29 a.m.

Enjoy the sun and cloud mix Sunday with highs in the 20s because our next winter storm is threatening us with a wintry mix of snow, sleet, and freezing rain Monday.

Here’s the reason we always tell you to keep up on the latest forecast with storms.

Our big warm-up is still coming Tuesday through Thursday.  However, instead of a wintry mix changing over to all rain Monday, it’s now likely to change over to all snow and accumulate!

Monday WWA

A “Winter Weather Advisory is in effect from 3 a.m.- 3 p.m. Monday for much of eastern Iowa and northern Illinois (6 a.m.-6 p.m. for Knox and Stark counties in Illinois).

A combination of sleet, freezing rain, and snow will begin across the area after midnight and intensify Monday morning.

The best chance of seeing freezing rain will be south of the Quad Cities.  From around the metro area northward, mostly sleet and snow is expected.  By mid-morning, all of the wintry mix will change over to all snow and start piling up.

Here is the situation based on the American GFS models.

This first map shows light moisture over the area at 6 a.m. Monday and that blue line across the Quad Cities shows the freezing line.  Thus, it’s very likely we’ll be seeing a combination of freezing rain and snow (south), icy mix of sleet, freezing rain, and snow in the Quad Cities, and snow and sleet (north).

6AM MONDAY

The map below is at noon.  By that time, the cold air has arrived and all of the precipitation should be in the form of snow.  And, notice that the green is darker indication heavier snow.

NOON MONDAY

By 6 p.m., the winter storm pulls away and the snow should end as light snow or flurries.

Here is the likelihood of seeing 4″ of snow or more from the NOAA’s Weather Prediction Center.  The greens show a 20-40% chance and the blues indicate a 40%+ chance.

4 INCHES OR MORE MONDAY

I’m showing you that graphic because it lines up with my forecast.  Here’s how much snow I’m predicting for Monday.

Snow Forecast Monday

THIS IS A DEVELOPING SITUATION SUBJECT TO BIG CHANGES.  A 2°-3° SHIFT IN TEMPERATURES COULD MAKE A BIG DIFFERENCE IN US GETTING A COLD RAIN, AN ICE STORM, OR A HEAVY SNOW!

Thank you to the National Weather Service in the Quad Cities for the base map with the “Winter Weather Advisory” colored in for Monday.

After this system, it warms up this week into the 30s and 40s Tuesday through Saturday.

As a matter of fact, another storm moves in late week and it should be all rain.  This is the precipitation forecast map for Wednesday morning through Friday morning.

WED-FRI RAIN

It could be a decent rain maker (0.5″ or more is possible).  That would not be good on top of melting away the 5″ of snow on the ground now in the Quad Cities and the new snow coming in Monday.

This does raise some flooding concerns, but let’s deal with one system at a time and that would be the ice and snow coming in Monday.

I’ll give you another update later today and I’ll have the very latest beginning at 5 a.m. Monday on “CBS4 News This Morning” in the Quad Cities.

Anthony

At Least One More Snow Before Spring….

It’s March 10th and many of us are already looking forward to the warmer weather, green grass, spring flowers, and budding trees.

The last thing many of you want to think about is SNOW.  However, if you’re reading this from the Quad Cities, the Mississippi and Illinois Valleys, or anywhere nearby, we live in the Midwest and we have still have snow in March and April.  It may not last as long, but it still snows and accumulates.

I’m reporting in to you from Fort Dodge, Iowa, located in the northwestern part of the Hawkeye state.  It started snowing here this morning, but it didn’t amount to anymore than a dusting.  More is on the way across Iowa today.

For the Quad Cities, it’s going to be a rainy and mild day with highs around 40-45 degrees.  Later Sunday evening, that rain will mix with and change to snow for Sunday night.  Accumulations should not top 1-3″.

If you’re heading off toward Dubuque, Cedar Rapids, Waterloo, and central and western Iowa, accumulations will be in the 4-9″ range!

Many counties in the aforementioned heavier snow forecast areas have a “Winter Weather Advisory” and a “Winter Storm Warning” in effect.

After a chilly day Monday following the snow, temperatures will begin a warming trend Tuesday.

Be safe tonight and Monday and hold out for spring!

Anthony