Snow & Wind Thursday

After a couple of very nice February days, a  storm system will move into Siouxland and bring some tough travel conditions to the area.

It looks like eastern Siouxland will get the worst of it and that is where a Blizzard Warning will be in effect from 9 am Thursday until 6 am Friday.  The counties included are Emmet, Palo Alto, Pocahontas, and Calhoun.  Expect 3-6 inches of snow in these areas but with the wind blowing the snow around we could see visibilities near zero for much of the day.

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Crawford, Carroll, and Sac Counties are in a Winter Storm Warning from 9 am Thursday until 6 am Friday.  Snowfall amounts may be a bit lighter and visibilities a bit better than the areas in the Blizzard Warning.

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Then there will be a Winter Weather Advisory in effect for Dickinson, Osceola, O’Brien, Clay, Cherokee, Buena Vista, and Ida counties Thursday from 6 am until midnight.  And a separate Winter Weather Advisory for Madison, Stanton, Cuming, Thurston, Burt, Monona, Harrison, and Shelby counties from midnight until noon Thursday.  These areas will likely see 1 to 3 inches of snow with the wind still playing a factor also.

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Here’s a breakdown of the snowfall potential across the area.

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Take it easy Thursday and try to avoid travel to the east as conditions will be worst in these areas across much of Iowa and into southern Minnesota.  We’ll keep you updated with any changes on KTIV News 4.

Chief Meteorologist Ron Demers

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This post was written by rdemers on February 20, 2014
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Wintry Weather Coming

The first significant wintry weather of the season will be across much of Siouxland Tuesday and Tuesday night.  In fact, a Winter Weather Advisory is in effect for northwestern Siouxland for Tuesday including Holt, Knox, Cedar, Antelope, and Pierce counties in Nebraska; Lincoln, Clay, and Yankton counties in South Dakota; and Lyon and Osceola counties in Iowa.

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It is these counties that could see the heaviest snowfall of accumulation with about 3 to 5 inches expected.  Some locations could inch upward toward 6 inches or a bit more but that should be more isolated than widespread.  This may start as a rain and snow combination Tuesday morning before becoming all snow by the afternoon.

We’ll have a chance of some snow here in Sioux City but it won’t be as much and it will be later in the day.  In fact, most of central, southern, and eastern Siouxland should see rain for most of the day before transitioning over to snow toward the later afternoon and evening hours.  Some snow could continue into Tuesday night potentially giving Sioux City an inch or two.

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This system should move out by Wednesday leaving us with chilly conditions.  Just beware of some tough travel conditions in the area.  And with this being our first real snow of the season, everyone will be adjusting to driving in conditions that we’re simply not used to.  Be careful out there.

Chief Meteorologist Ron Demers

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This post was written by rdemers on November 5, 2013
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Good Rain Chances

We haven’t seen much severe weather this season but this October 2 did bring a round of severe storms, mainly across northeast Nebraska.  Some of the rain has been heavy with some flooding taking place in southern Antelope County from the rain that was taking place that you see below:

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And we’re not done yet.  There are going to be more chances of rain through Thursday and right into Friday as well.  Here’s a look at what Friday afternoon could look like across the area with more storms developing during this time.

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There’s a chance of a few of the storm Friday afternoon becoming severe.  Here is the severe weather outlook for Friday at this point.

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Before all is said and done, many of us could see over an inch and a half of rain.

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Saturday is going to turn cold as highs will struggle just to reach the 50 degree mark and it will be windy as well.  The system will start pulling out of the region Sunday but we still could be stuck with a leftover rain showers.  Temperatures rebound some by early next week.

We haven’t had much rain as of late so enjoy it while we have our chances.

Chief Meteorologist Ron Demers

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This post was written by rdemers on October 3, 2013
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Rain Possible

A few rain showers may pass through Siouxland during the night Monday night.  As you can see in the rainfall forecast below, northeast Nebraska may fair better with rain amounts than the farther east that you move.

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Rain could linger into Tuesday morning with the rain ending after that.  We may even see some sun showing itself again by the afternoon.

After a couple of dry days, our next chance of rain could move in by Friday.

Chief Meteorologist Ron Demers

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This post was written by rdemers on September 23, 2013
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Not Enough Rain

Yes, we saw a bit of rain….but no, it wasn’t enough.  Many locations in Siouxland saw just a few hundredths of an inch with the highest amounts landing in northeast Nebraska with a quarter of an inch as you can see from our weather watcher map.

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Sioux City is up to 1.17″ for the month of September which leaves us about three-quarters of an inch behind our average and we’re still dry for the year as well.

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Our next chance of rain won’t come until Monday but you’ll have some beautiful weather to enjoy from Friday through Sunday.

Chief Meteorologist Ron Demers

 

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This post was written by rdemers on September 19, 2013
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Update on drought, rainfall data, and extended forecast

It was the wettest March-May on record for our area, but I am slightly concerned about hot and dry weather in our extended forecast.

Expected response-“but Dave, it’s rained almost every day lately!  We don’t need any more rain! What we need is dry weather and heat!”

 

Ok, I get it, we do need some dry weather for crops that were underwater.  I hear that, but consider this. A great deal of our moisture was received as snow, sleet, and hail. Do you remember when it hailed for hours back in April? The ground did absorb some of this moisture, but a good part of our early season moisture ran off into rivers rather than the subsoil where we desperately need it since last summer’s drought depleted this resevoir of water. Let’s not forget how frozen the ground was as well.

Here’s the summary of June rainfall so far:

June total for Sioux City: 1.69″          (Avg. is 2.25″)

Year: 15.02″            (Avg. is 12.23″)

Last year at this time we had also seen over 15 ” of liquid equivalent precipitation, but after May the rain basically stopped and the extreme heat and drought depleted virtually all soil moisture by the late summer. What’s different this year is that the subsoil moisture is more depleted, but heat and dry weather has held off until probably the end of this month now.

Notice the improvement in our drought status (earlier this year we were still considered in “exceptional drought”

 Drought status

Check out the extended temperature outlook courtesy of the climate prediction center:

What I see happening is the main storm and rainfall steering jetstream will head up into North Dakota and Manitoba, cutting off our rain chances next week and keeping subtropical air parked over the Plains and Midwest.  For farmers, gardeners, and lawn perfectionists we’ll have to wait and see how this all pans out but get ready for hot weather!

Meteorologist Dave Winslow

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This post was written by rdemers on June 18, 2013
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Snow Forecast – Wednesday Update

Our storm system continues to move in and I haven’t changed the forecast a lot since I last updated the blog on Tuesday.  What has changed is that the Winter Storm Watch that was in effect for much of the area has now been updated to a Winter Weather Advisory for central and northern Siouxland with a Winter Storm Warning (for slightly heavier snow) in southern and far eastern Siouxland.  Most of the advisories and warnings run from noon Thursday until noon Friday.

The heaviest of accumulations are probably going to be taking place in southern Siouxland with as much as 6 to 10 inches possible.  The National Weather Service decided to go with a Winter Weather Advisory for Sioux City because they don’t think we’ll reach the criteria for a warning of 6 inches of snow in 12 hours or 8 inches of snow in 24 hours.  Most of central and northern Siouxland will probably end up with 4 to 8 inches with close to 6 inches probable in Sioux City, lesser amounts will fall to the north and more to the south.

Look for the majority of snow to fall after 5 pm Thursday into the overnight hours.  We could have some light snow lingering into Friday morning but the heaviest of snow should be east of here by then.

The wind won’t be overly gusty with this system, but it will be steady between 15 and 20 miles per hour.  So this will enough to help bring down visibilities and it’s just another factor we all need to keep in mind.

For anyone with questions about the storm, KTIV will be hosting a live weather chat Thursday afternoon beginning at 2 pm.  Meteorologist Ross Caniglia will be online answering your questions while I focus on the forecast and evening weathercast.  You will be able to go to ktiv.com and click on “Live Weather Chat.”  We hope to see you (or chat you up) then.

Ron Demers

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This post was written by rdemers on February 21, 2013
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Snow on Thursday

We’ve been watching this storm system since last week and now it’s getting close.  A Winter Storm Warning has been posted for southwestern Siouxland, including Norfolk and O’Neill from Thursday morning until Friday morning.  This is probably where the heaviest of snow will fall.

The rest of Siouxland, including Sioux City, is still under a Winter Storm Watch from early Thursday until early Friday.  This will probably become a Winter Storm Warning or a Winter Weather Advisory on Wednesday depending upon what the latest models show.

I think the majority of Siouxland in the Winter Storm Watch could see 4-6 inches but pockets of 7 and 8 inches can’t be ruled out, especially the farther south you go.  Southwestern Siouxland could see the worst of it with 6 to 10 inches possible.

The wind will be steady with this system, mostly between 15 and 25 miles per hour.  So visibilities under half a mile are certainly going to be possible.  So be careful on Thursday as we will be seeing deteriorating weather conditions.

Don’t forget you can download our Storm Team 4 Weather App for Android, iPhone, and iPad.  This is a way to track this weather system as it moves in.

Ron Demers

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This post was written by rdemers on February 20, 2013
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Rain on the Way

As dry as we have been lately, it’s great to see moisture finally on the way.  This time of year, it’s more likely that you’re going to get snow but that is not the case for most of us with this storm.  Temperatures are going to stay warm enough that the moisture will fall as rain tonight as you can see by the 2 am snapshot from Storm Team 4 Future Track.

The rain will come down steady for a while and could give portions of Siouxland over half an inch of rain with the heaviest amounts to the southeast of Sioux City.

As our temperatures cool late Saturday, we could see a bit of freezing drizzle or flurries in the area so just be careful of the possibility of some slick spots later Saturday.

Ron Demers

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This post was written by rdemers on December 15, 2012
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Leonid Meteor Shower

Clear skies tonight may help you star gazers to see a few meteors flying through our sky.

The peak of the Leonid Meteor Shower will happen in the pre-dawn hours of Saturday.  At its peak, you might be able to see between 10 and 15 meteors per hour.  The best way to see these “falling stars”, as they’re often called, is to get away from city lights so the night sky is nice and dark.

Keep in mind that just because the peak of the meteor shower is tonight doesn’t mean you might not be able to see meteors over the course of the next several nights.

The Leonids aren’t the biggest of the meteor showers to take place.  Coming up around December 13 will be the Geminid Meteor Shower when there’s the possibility of seeing as many as 100 meteors per hour.

So good luck if you try to check out the meteor shower.  If you don’t…sleep well.

Ron Demers

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This post was written by rdemers on November 17, 2012
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