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What will temps. be doing into the evening?  Is there a chance this could freeze up overnight and cause problems tomorrow?  Thank you for the great coverage of these fascinating weather events!

Good afternoon Gary!

Here in Stilwell the temperatures reached a "warm" 36.6 but now are dropping rather quickly and now we are at 33.8 degrees does that go against the model?

Thanks!

John

let the temperatures drop!!!

is that what happening?

Are you still thinking the temp will warm above freezing this evening?  (Say..9:30ish)

Just got home from running some errands and my car says it's 31 degrees in Lee's Summit...

I don't have anywhere to go tonight -- Have a sick child with a 102 degree temp and a horrible cough but I want everyone out traveling tonight to be safe!!

Lori

Temps have dropped to 34 in Olathe!

Got 25 up here in liberty.

yay!  temps dropping...

( I say this because I don't want my snow to melt! I like it.)

Hello everybody!! Sorry, I have just been "lurking" since the spring storm seanson! I need every ones opinion (especailly one of weather team!) about this site.

http://www.spc.noaa.gov/compmap/

Is it a good place/info to use? Or is there something better? Also were is the best place to get the most current ULL information from?

PS. Some one needs to stop the MELTING!!

We are at 36 now in Blue Springs.The temps here have been all over 14 this morning 38 @ noon. Now we are back to 36 the wind is also picking up a bit.

29 here in Independence

Looks like some fairly rapid development of precipitation near Eureka, KS and moving ENE towards this way.  Storm system must really be moving in now.

Temps in my area (Plaza) appear to be just below freezing at this time @ 1:46pm

Pete

Do you think the storm will become more organized later in the day??

Temps aren't really dropping. Home thermometers may have been measuring a little high earlier and are now coming back to being more accurate. I noticed that the clouds were pretty thin for a while, and even a little sunlight coming through the clouds and reflecting off the snow can cause thermometers to measure too high.

Here is a link that will let you monitor weather conditions around Johnson County.

http://stormwatch.com/index.asp

Temps have briefly  dropped to 32 in OP.... I suspect once the rain starts, it will help warm us up a few more degrees.   This was suppose to happen from the beginning.   The only difference is the precip did not start as early or heavy as expected while our temps were below freezing.   Up north will be a different story when the storm gets going and the main band moves through tonight.

My digital on my back deck is reading 33.8 @ 124th and state line in Leawood

RDub,

What makes you think that thermometers (home or otherwise) were reading high but now are accurate? This statement makes very little sense.

Home thermometers are very sensitive to the effects of sunlight if they are not well shielded. Many of them aren't, like mine. I notice that even filtered sunlight can cause the measured temperature to rise on my home thermometer. During the late morning the clouds were very thin and some sunlight was coming through. Now, as the clouds have thickened with the storm finally approaching, less sunlight is coming through.

If you look at the airport reporting stations, none of them have shown a drop in temperature, while many of the home stations have.

Gary,

LOVE the new map on the weather page. It is absolutely fantastic. Never shall I stray from the nbcactionnews.com weather page now. Honestly, this one blows all the others away now, but I used to stray just for a better look. Now I won't have to.

RDub,

You are  correct that placement is very important and high temperatures can be erroneous - however as a Pilot I not only use good equipment but also have it correctly positioned - I am quite confident in my readings withing the error of the machine (+/_ 1 degree). Not sure how to explain the temperature change but it was not artificial (in fact I have two different stations and they recorded with 0.1 degrees).

Thank you for the clarification - indeed a very good point.

John

Brief period of flurries in Platte City.  Seems to have ended now, though.

A friend reports rain in Lee's Summit with 31 degrees and no icing

Drizzle is falling in Lawrence. Temp on my personal weather station says 30.8°; that is a decrease of 2° in the last 30 minutes.

Pilot, maybe there was some evaporative cooling happening? That is the only explanation I can think of.

Could that cooling be due to evaporation?  As I understand it when precip falls and evaporates it releases some energy.  This energy release causes the atmosphere to cool until it becomes saturated or the precip picks up in intensity and can translate the warm air aloft to the surface.  Temperatures typically fall at the onset of precip...  Just a thought...

I agree RDub

There won't be much though.  The atmo is pretty saturated already.

the temperature is dropping here as well, dont know why...had a couple flurries about 20 minutes ago.

RDub,

Possible ( suppose one of the two sensors is under the deck, far from any snow or window and shielded from wind - precipitation - or sunshine. Have always felt confident that it read as accurately as possible - this might be one for the books! :)

Thanks for the discussion.

Rain here in Stilwell - very light no icing on anything including my stainless steel grill that tends to ice up when I look at it the wrong way! :)

Do we think the event will be done by six? I see bands of precipitation south that might indicate a more prolonged event.

John

pilotS77,

would you recommend putting the sensor under the deck shielded from all above??  I just set up one today and it is shielded from most wind, but not precipitation.

The forecast is for more precip through the night, possibly even thunder...luckily for KC it looks like that will just be liquid rain, at least on the south side.

Not much going on in the Rivermarket at present.  Just some fog in the distance.

From what I remember from my Atmospheric Science course, when precipitation begins to fall, evaporative cooling occurs, dropping the temperature toward the dewpoint (and wet-bulb temperature) as the humidity increases.

However, currently there is a very warm air mass overhead and I believe that if the precipitation comes down a bit more heavily, that warm air will be pulled down with it, thus increasing the temperature once more. I'm not as sure about this speculation.

The temp dropped here in Lawrence from 32.9 to 32.1 after a brief rain shower. I am a "selfish ice-storm lover" like Andrew et al. (my fondest memories as a child were ice storms and the "October Surprise" snowstorm), so I'm a bit bummed that the low will track north of here. On the bright side, at least I will get my last final in tomorrow so I don't have to take it after Winter Break. ...Oh, and the elderly won't suffer terrible life-threatening injuries. That's a plus. :)

My fondest Childhood memory was the flood of 94 and Hurricane Hugo

Oh and  nice game against UMASS

homemom,

You want the sensor away from any influence (that includes house vents) for the mist accurate reading. In general wind is not an issue unless the atmosphere is loaded with humidity. So just shielding the sensor form the sun should be good.

no snow sleet or rain freezing or otherwise in st jo 27 degrees

Just came back to Sibley from Blue Springs, was a light sprinkle.  Roads are still okay---for now.  I will not go anywhere else today.  It is 29 here, I want to say the temps have dropped

It is 33.3 degrees here.  It is 66.6 in my house, Spooky. LOL  Anyhow, On my way to go shopping this morning at 8:30am the trees had ice on them, It was so pretty.  On my way home at 2:00pm the ice was gone.  We are getting light precip here.  Unless it drops a degree or 2 we will be in the clear.  

PilotS77,

I wonder where in Lee's Summit there was rain at 2:15? I did not notice any here near the corner of Colbern Road and the 7. Also the temp at the Lee's Summit airport is currently 30 degrees with a high for the day of 30 degrees. So the temp does not appear to dropping.

If this storm does wimp out it will be interesting. It will be the second storm from CA that my family in CA has said was a really strong storm for them and it was anything but for us.

If a storm expends a bunch of it's energy in CA, does it have a hard time recovering the lost energy before it reaches us?

On the subject of shielding, it's harder than it seems. "Official" measuring stations come with a box that has slots to allow air movement while shielding the sensor from the sun. http://www.srh.noaa.gov/tlh/cpm/crs_page.html

Mine is much simpler. I put it on the north side of a garage but it still is influenced by sunlight, even in the winter. For example, it was reading 25 yesterday when most stations were reporting 18-20.

There is a Mesoscale Discussion out that includes Clay and Platte counties.  It is talking about a primarily freezing rain/sleet event for the counties included.  They say that liquid precip. amounts could be as high as .20 per hour.  If this event last as long as has been forecasted, would it be considered a severe winter storm?  Being up in Trenton, I'm pretty sure we are hosed.  Just hope the wind stays calm.

Light rain/sprinkles in the Shoal Creek/Liberty area.  Temp 27f.  Pretty unimpressive.  

Looks like the freezing rain advisory has been dropped for Linn County since it is no longer showing on NWS site. Is there a chance the freezing rain could go poof for Northern Mo and Iowa? I sure those folks up north would rather miss the headaches from an ice storm.

31.3 @ my house in Blue Springs. It was sprinkling but nothing right now. Temps been holding steady for about the last hour.

RDub,

Just because your readings were different it does not mean that they were wrong - several degrees variance between stations is not so strange. If you are on a North exposure how do you get sun on your equipment?

Gary or anyone,

How do you think the roads will be around 6:45pm and later tonight? A response would be greatly appreciated, thanks.

32.4 @ Belton, MO

"Trentonite said:
There is a Mesoscale Discussion out that includes Clay and Platte counties.  It is talking about a primarily freezing rain/sleet event for the counties included.  They say that liquid precip. amounts could be as high as .20 per hour."

Time frame???

25.1 here in independence

weatherfreak it was indeed raining in Lees Summit, all be it light but it was coming down. I had to use my windshield wipers all the way home.  I took 50 hwy all the way.

mdg2fast4u, it depends on where you live or where you will be at that time.

Could this thing be stalling out?  Looks like most of the precip currently on the radar isnt even reaching the ground here in downtown KC.

What is everyone's thoughts?  To me it seems from downtown and to the south, we are in the clear???

Bryan

You seeing rain out there yet??

Speaking of "official" measurements - why is KCI the official place for KC? It is 20 miles north of the city, so that doesn't really make sense.

Pat

Good late afternoon everybody!!

Just a quick check in from SW Lawrence: Had a brief shower come through-still holding at 31 but nothing is freezing. Thoughts with everyone in the Northern Metro and St. Joe to Bethany.

Have a great evening everybody-I'll be watching a group of 7-12 graders dance the night away tonight-maybe a little Van Halen Dancing in the Streets will be in order!!

Sorry again about kind of over stepping my limits earlier-I should never make some kind of a "dodging the Bullet" call in a situation like this!!

Again, have a great night!!

Bill in Lawrence

dpatel,
Lee's Summit

Temps got up to 33.3 but have been slowly dropping since. Temp now at 31.5 in Kingsville.

Twistedsisters,

50 is across town from me so that explains it.

Question.. are you part of the twisted sisters tornado chasers team?

"MORE SIGNIFICANT CONVECTIVELY
  ENHANCED PRECIPITATION IS EXPECTED AFTER 21Z."

If my calculations are correct, it is 21:15 Zulu time now, can anyone verify?

" If you are on a North exposure how do you get sun on your equipment?"

Reflecting off the snow! I've noticed this happening in the past before, and have been surprised at how much of an effect it can have.

30 degrees in leavenworth a few sprinkles nothing major right now looks like precip on radar is scattered at this time it seems to me the trend is increasing precip.

Down to 28 here in KCK again, did have a little sprinkle storm move through my area, but did not notice anything freezing to any surfaces.

Bryan

Hi ho - formerly a lurker, here in leavenworth.
Need to pick up a loved one at KCI tonight around 9:30 pm.
What do you think about the roads?
it's beginning to sprinkle here now - and the temp is below 30.  
 

Jeremy,
POOF !
What happened to the solid area of precip that
you showed to the south (Garnett, Mound City) on
your 11 A.M. broadcast  ?
According to current radar, it looks as though it has broken
up big time....at least for Johnson County.
No freezing rain...and really no rain period.
Will it redevelope, or is this it for the day and night?

We did get a very brief shower up here, and unfortunately, it froze.  Not to streets or sidewalks yet, but to windshields.

Would love to see this storm fall apart and be able to maintain the snow cover in hopes that the next storms are all white............meaning a WHITE CHRISTMAS IN KANSAS CITY!

3:00 PM is 21:00 Zulu for KC

 
mdg2fast4u, should be ok on the main roads but on the side streets may get a bit slick, all depends on temp.

Still at 33.0 degrees here in S. OP, not much going on at the moment.

I just drove from work at 87th street and 435 (South of the River) to 169 and Cookingham (North of the River).  It was 31 degrees when I left work with nothing coming down.  As soon as we hit 152 hwy and 435N, it started pouring down freezing rain and the temp up here is 26 degrees.  I could see the car headlights gleaming on the ponds of water on the side of the highway, but traffic is moving along like it's nothing. It's lightly freezing rain outside as I type......

2100 Zulu is actually 4pm cdt.

Key words they used there was:

"HRLY LIQUID RATES OF 0.05 TO 0.20 ARE LIKELY."

so dont think its gonna be solid .20 per hour, could be only .05 an hour.

again this was clay-plate county-ish and north. I live and work in clay county and so far only some sprinkles about 30 mins ago. temp was 28 in my car when i got to work at 3pm.

What the heck is Zulu time???

Mammatus - that is not correct

21:00 zulu is 3:00 PM

We are -6 from UTC

Absolutely NOT what I wanted to hear, kctwinsmon99.  I live very close to 152 and 435 and was hoping to make it home safely.  : (

The temp has fallen to 27 up here in leavenworth.

Thank you very much dpatel!

Mammatus - actually you are both correct and wrong

I did not notice you typed CDT - we are not in CDT time however right now we are in CST. So for CDT you would be correct it would be 4 but since we did the time change we are in CST and 21:00 zulu is 3:00 PM CST (15:00 if you like the correct notation)

32.7 here in south Lee's Summit.

Mammatus is correct for cDt, but right now we are not on daylight savings time...

zulu time aka UTC time is the base time zone for meteorological measurements. you see it on model data and in technical discussions from the NWS. UTC is also the same as Greenwich mean time. I have no idea why it's called Zulu time.

marlina10,

Zulu (or UTC) is the coordinated universal time - time that does not have time zones for example right now it is 21:39 zulu everywhere in the world. It is used in aviation and meteorology to avoid time zone calculations and possible errors.

I guess I always used this chart but you are correct. The Zulu time conversion chart is just a generalization for time zones.
http://hurricanes.noaa.gov/zulu-utc.html

I definitely have a very light ice glaze on my sidewalk which has been completely cleared of snow.  Temp holding @ 27f.  Shoal Creek/Liberty area.

I think that you will be fine Emmysmom.....I have a clear shot of 169 hwy from my house and traffic is flowing with no problems.  It's down to just sprinkling now.  

The way I understand it the time zones have letters of the alphabet associated with them - the letter Z is assigned to 0 degrees longitude - in the aviation phonetic alphabet you use the term Zulu when you want to say the letter Z and thus zulu time was born!

Thanks, kctwinsmom! I'm just such a paranoid driver, especially when I have my 3 year old in the car, and even more so now that I'm pregnant! : )

Are they still thinking there will be a refreeze for Friday morning???

It is 32.0 here now. It appears to be dropping. Oh no!  What does this mean?  

weatherfreak01, No I am not part of any group that storm chases.

so where is all the precip?  Doesnt look like there is much out there.  I left work early for nothing...that stinks
becky

That is what I like about this blog, we can always learn something new.

new blog

new blog!

32.2 at K10 & K7, light drizzle that does not appear to be freezing, traffic is not slowing down on College.

I want to know about refreezing for Friday late morning.