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Friday Severe Weather Risk

Good morning bloggers,

Our storm chaser Sean Wilson is describing yesterday as his best tornado chase he has ever experienced.  We will be showing some of the tornadoes he experienced tonight on NBC Action News at 5, 6, and 10.

A few showers and thunderstorms will move through between now and 9 AM, then some sunshine will break out!

The threat of tornadoes is very slight today, with hail and strong winds the main threat for our area.  There is a moderate risk over Illinois as you can see the severe weather risk, below:

The cold front, approaching, is very weak.  The winds ahead of the front are forecast to be west southwest, and then west northwest behind the front.  This is not an ideal low level wind for tornado development.  And, convergence along the front will be weaker, but if we warm up to near 90 degrees there will be enough instability to produce a few strong to severe thunderstorms with hail being the main threat for our local area.  The tornado threat is much higher in the moderate risk area to our east.

Try to watch the newscasts later today and tonight.  We will be going over Sean's tornado chase and picking out some of the more dramatic moments.  Have a great Friday.  We will go into more details later today.

Gary

Published Friday, May 30, 2008 6:29 AM by glezak

Comments

 

juba said:

Heu Gary, nice little thunderstorm moving thru Johnson county right now. Looks like the showers are weakening to the south and developing to a line, (cute)! Do you think this could be the last severe weather outbreak? Thanks, Byan.
May 30, 2008 7:10 AM
 

homerun said:

Good morning Gary----Have you heard anything about how bad Kearney (Spelling), Neb. was hit with their tornado?   There is a great museum there with old cars and tractors.  We received a brief shower this morning but I looked on Wichita's NWS page and they are over 7 inches ahead for the year. Amazing!  We are now only a little over an inch ahead for the year.  Again (thank goodness) here in a pocket in Norhteast Kansas, we have not had much severe weather.  Western Kansas and North Central Kansas has sure had their share.  Again I suppose it is how the troughs and ridges have set up with this year's LRC.  Do you see more severe weather next week?  Take care, Michael/Berryton/Topeka
May 30, 2008 7:39 AM
 

JustinG said:

homerun:

Click on this link.  The first couple of stories pertain to the storms that hit that area last night.

http://www.crh.noaa.gov/gid/
May 30, 2008 7:44 AM
 

juba said:

  juba said:
Heu Gary, nice little thunderstorm moving thru Johnson county right now. Looks like the showers are weakening to the south and developing to a line, (cute)! Do you think this could be the last severe weather outbreak? Thanks, Byan.
May 30, 2008 7:10 AM  
May 30, 2008 8:07 AM
 

bewild79 said:

It was a beautiful night last night.  Went to Dirks Bently free concert in P&L Dist.  Great breeze but the best was no rain.  Anyone else go?
May 30, 2008 8:34 AM
 

twister11 said:

we r now in a moderate risk here in Moberly.
May 30, 2008 8:36 AM
 

bewild79 said:

COOL AIR FROM CLOUDS AND THUNDERSTORMS THIS MORNING WILL REINFORCE A
  FRONT ACROSS THE CORN BELT AND MIDDLE MISSISSIPPI VALLEY REGIONS.
  ALONG AND NEAR THAT FRONT...THE SPC EXPECTS MORE THUNDERSTORMS TO
  FORM DURING THE HEAT OF THE AFTERNOON...WHEN THE AIR MASS WILL BE
  THE MOST UNSTABLE AND INCREASINGLY MOIST.  WIND SHEAR WILL BE
  FAVORABLE FOR AFTERNOON STORMS TO ROTATE...WITH A RISK FOR TORNADOES
  ALONG WITH SEVERE HAIL AND DAMAGING DOWNBURST WINDS.  THESE STORMS
  MAY GEL INTO A LARGE CLUSTER THIS EVENING AS THEY MOVE
  EASTWARD...AND ALSO MAY DEVELOP FARTHER SOUTHWEST ACROSS PARTS OF
  CENTRAL/WESTERN MISSOURI AND KANSAS.
May 30, 2008 8:43 AM
 

Fire Dog said:

Well, they moved the MOD risk back to the west matter of fact its now just to the west of kc. *** I think you mean east and it is really central Missouri-eastward.  Brett
May 30, 2008 8:50 AM
 

bewild79 said:

I wouldn't mind seeing severe storms as long as no tornados are accompanied with them.
May 30, 2008 8:51 AM
 

juba said:

juba said:
 juba said:
Heu Gary, nice little thunderstorm moving thru Johnson county right now. Looks like the showers are weakening to the south and developing to a line, (cute)! Do you think this could be the last severe weather outbreak? Thanks, Byan.
May 30, 2008 7:10 AM  **** Byan, Not the last severe threat.  Let's see what happens late next week. 
May 30, 2008 8:54 AM
 

bewild79 said:

Juba, you really want an answer huh?
May 30, 2008 8:57 AM
 

Fire Dog said:

Yea I do mean east.  That was my bad.
May 30, 2008 9:18 AM
 

bewild79 said:

So how much of a chance do you think we have for having severe storms today?  Is there a time frame for it?
May 30, 2008 9:21 AM
 

Fire Dog said:

If there is anything it will be this afternoon/evening.  Must wait to see where the outflow boundry sets up. **** Firedog, I agree and I'm not seeing any clear boundaries this morning, though on the visible satellite it appears one is over northeast Kansas into NW Missouri.  Brett
May 30, 2008 9:23 AM
 

kcwxguy said:

;-)
May 30, 2008 9:24 AM
 

bewild79 said:

Hi Scott!
May 30, 2008 9:27 AM
 

bewild79 said:

So if we get in that clearing boundry then storms will fire?
May 30, 2008 10:11 AM
 

lezakEF5 said:

I hope we get some more storms.
May 30, 2008 10:11 AM
 

kcwxguy said:

Its one thing to watch and analyze moisture convergence for severe potential..and its another to watch chaser convergences...LOL

More and more folks in the last few hours seem to be showing up in the viewing area.

LOL

----------

It really is amazing, and becoming more dangerous on the road because of it.  Way too many cars out there.

Anyway, the convergence on the front is weak, the front is weak, and the low level winds are not favorable for tornado formation near us today, except for well off to the east over Illinois.  For us, we have to keep monitoring this and Nowcasting.  There is no indication at all of any thunderstorm development until at least mid afternoon.  We could be near that far western cell, which is often rather severe. 

Gary

May 30, 2008 10:19 AM
 

bewild79 said:

Where did everyone go?
May 30, 2008 10:22 AM
 

DfromWarsaw said:

I can't tell if the Mod Risk includes me or not. Hard to tell on the map. Should I be worried about going home this afternoon? We have no storm shelter at home, yet. Its temporarily a mobile home, for another year anyway.  Up in the city, I don't worry about it during the week, but weekends at home are different...
May 30, 2008 10:23 AM
 

kane1970 said:

It looks light moderate has moved west. I wonder what our chances are now! The sun is trying to come through. Starting to feel like a sauna out there. 78 degrees at 10:30. That seems more like it should be this time of year. Would this storm be more of a wind and hail and not tornado? 
Thanks! *** More of a hail and high wind threat, yes but anytime you get big thunderstorms blowing up right over you, some can quickly go tornadic!  Brett
May 30, 2008 10:42 AM
 

kane1970 said:

 kcwxguy said:
Its one thing to watch and analyze moisture convergence for severe potential..and its another to watch chaser convergences...LOL

More and more folks in the last few hours seem to be showing up in the viewing area *********************
Just asking.... Do you mean storm chasers? Shouldn't they be moving over to Mo.?  Not here in the metro.
May 30, 2008 10:44 AM
 

kcwxguy said:

I see folks appearing in KC, Chilicothe, Booneville [appear to be heading west], and our blogger bellgolf appearing on the spotternetwork in Sedalia.

Its still early, and this area is not the prime area for tornado chasing, still may experience severe weather... **** If chasers want to see them from their genesis then this may be the place to be.  Brett
May 30, 2008 10:50 AM
 

adogg said:

So, if there are thunderstorms around here, what does the timeline look to be?

-------------

3 to 7 PM.  The weak convergence near the weak front may inhibit thunderstorm formation and keep it widely scattered.  But, this is something we will have to watch closely.

Gary

May 30, 2008 11:06 AM
 

bellgolf08 said:

kcwxguy-i got sedalia covered. lol i know the tornado chance is slim but i dont have the means to actually chase yet. so i do it from home.
May 30, 2008 11:07 AM
 

twister11 said:

I am in eastern Missouri, so I may get some action later this evening.
May 30, 2008 11:12 AM
 

kcwxguy said:

Brett - still going with your 20% from Tuesday?  j/k..lol  **************** Depends which side of the metro you live. 
May 30, 2008 11:13 AM
 

adogg said:

Thanks brett! Good thing I went golfing yesterday! I will keep everyone updated throughout the day on the conditions in drexel.
May 30, 2008 11:18 AM
 

kcwxguy said:

The front hasn't moved much today based on surface obs...
May 30, 2008 11:19 AM
 

5kckmartins said:

Went out n checked rain guage, thinking that there wouldn't be anything there.  i never heard anything anyhow..   I found .07 inches..
May 30, 2008 11:19 AM
 

adogg said:

OK, thanks Gary! Just when I type in thanks brett you change the response! ;)
May 30, 2008 11:21 AM
 

khansen said:

I will be heading down to the St. Louis area in an hour or two. What is the outlook along I-70 for early afternoon-evening?
May 30, 2008 11:22 AM
 

kcwxguy said:

New 11:30 AM HWO...

Exerpt -

"THERE IS A SLIGHT RISK FOR SEVERE THUNDERSTORMS SOUTH OF A LINE
FROM ABILENE TO MANHATTAN TO HOLTON. THE MAIN THREAT TIME FOR
THUNDERSTORMS IS AFTER 4 PM...AND THE MAIN SEVERE WEATHER THREAT
IS FROM LARGE HAIL AND DAMAGING WINDS."

Go figure..slower and further west.

;-)
May 30, 2008 11:32 AM
 

kcwxguy said:

I should clarify..that HWO was out of Topeka.
May 30, 2008 11:37 AM
 

kcwxguy said:

The 18-19Z soundings look pretty good...

--------------

They do, and thunderstorms that form may become supercells. But, conditions are still much more favorable for large hail.  Each cell will have to be watched closely.  Hey bloggers, let us know what you see!

Gary

May 30, 2008 11:40 AM
 

simplykristi said:

I am late to the game this AM.  Had to take Mom to an appt.  (I will be updating my CaringBridge journal in the next few mins.)  I have always felt that we would have more of the hail and wind rather than tornadoes.  I will actually have time to keep an eye to the sky and the blog this afternoon and evening.

Kristi
May 30, 2008 11:46 AM
 

Lizbaugh said:

It is, for practical purposes, mostly cloudy here in Lee's Summit. The sun pops out every few minutes...will the cloud cover allow for the thunderstorms to build??

May 30, 2008 11:55 AM
 

adogg said:

I was just gonna bring that up.
May 30, 2008 11:59 AM
 

kane1970 said:

Are we going to be put into a watch of any kind?? What are the chances of just having rain. Softball games tonight. I wonder if they will be cancelled?
May 30, 2008 12:03 PM
 

angvic00 said:

What a crazy morning.  It was thundering and lightning here in NW Olathe then the heavy rains came down around 6:55 a.m.  I had to decide whether or not to drop my daughter off at swim practice by 151st and Black Bob.  I decided to do so since it looked better in that general direction.  And of course it was.  One lightning bolt dashed across the sky w/ some light rain.  So by 7:30 all the swimmers were in the pool.

The whether also did not stop the MS walk that was taking place around Olathe.  Did anyone participate?
May 30, 2008 12:05 PM
 

bellgolf08 said:

kristi-its ok to be late. just thought i would let you know that i am still thinking and praying for your family.
May 30, 2008 12:09 PM
 

bewild79 said:

looks to me like the clearing line is getting closer....
May 30, 2008 12:10 PM
 

LVStormSpotter said:

clouds keep developing, will be tough for the sun to break out for a decent amount of time.
May 30, 2008 12:22 PM
 

kcwxguy said:

oddly, looking at many of the parameters, the high flying chasers are under both areas..LOL

Manhattan shows some great potential for explosive development with big CAPE and sheer, and Chillicothe shows great supercell composite values...

Both at 16Z.

Will be interesting to watch...
May 30, 2008 12:36 PM
 

kcwxguy said:

The seven day forecast for today shows 90 for a high.
May 30, 2008 12:43 PM
 

HummerSeeker said:

Pretty sunny here in Blue Springs - and VERY humid - my car temp said 71 but it feels way hotter than that.
May 30, 2008 12:44 PM
 

HummerSeeker said:

Hi Kristi - how are you folks doing?  I've been in KY for the last two weeks - talk about out of touch!  They do continue to be in my prayers as are you and your family for strength.
May 30, 2008 12:45 PM
 

HailJonathan said:

Has anybody noticed the lack of hatching on the spc probabilities. for instance hail in the moderate risk is 45 percent but isn't hatched and tornadoes is 15 percent but isn't hatched I've never seen this before. is this an error or do they really only expect weak severe thunderstorms out of this?
May 30, 2008 12:50 PM
 

simplykristi said:

Thanks for the good thoughts and prayers!  I have a journal that I update at http://www.caringbridge.org/visit/branstetter/  You can sign up for email alerts.  I update the journal when I can.  

It is humid outside!  It's like a sauna out there.  

We didn't get anything measurable from the rain this AM.

Kristi
May 30, 2008 1:02 PM
 

LVStormSpotter said:

wow! my thermometer, which  has never been off and is in the shade has a reading of 89.7 degrees here in Leavenworth.

dewpoint is 71 and humidity at 69%
thats insane, lets get some forcing!!!
May 30, 2008 1:17 PM
 

kcweather said:

Hi, I'm just curious; what is the best way to locate an outflow boundary on satelite imagery?  Do you use Visible, Infared, or Water Vapor, and what specifically do you look for?

How would one forecast what the outflow boundary will do?  Is that somehow included in the models or is it pure speculation?

Any comments appreciated!
May 30, 2008 1:19 PM
 

John Sickels said:

Ok my prediction for the afternoon and evening...

About 2:30 or 3 the SPC will put eastern kansas and western missouri in a Severe Thunderstorm Watch.  The front will begin to light up about 4 with some scattered cells in a rough line...one of which will produce a weak tornado (EF-0) about 5 pm and numerous funnel clouds on the Kansas side. There will be lots of reports of small hail and wind but overall it won't be bad and the tornado won't hurt anything.
May 30, 2008 1:23 PM
 

kane1970 said:

I have a feeling that we are all hoping for somthing that is not going to happen. Atleast anywhere close. Best chance is central mo and eastern mo.
May 30, 2008 1:24 PM
 

bewild79 said:

Quite a prediction....
May 30, 2008 1:25 PM
 

pvt_murphy said:

i have 86.2 here at fort leavenworth, with a 72.9 degree dewpoint.  that comes out to a RH of 64% ....its going to be close, but i think we may be a little far north lvstormspotter...knowing our luck they will fire around bonner or tongy and move away...
May 30, 2008 1:25 PM
 

kane1970 said:

This place sure is quiet on a day like this.
May 30, 2008 1:28 PM
 

bewild79 said:

yea kane that was my thought too!
May 30, 2008 1:30 PM
 

pvt_murphy said:

http://adds.aviationweather.gov/satellite/displaySat.php?region=ICT&isingle=mult_big&itype=vis

you can see a couple boundry lines here...especially the one around manhattan up towards falls city.

...although i find that sometimes wunderground's radar picks up boundry lines nicely.
May 30, 2008 1:30 PM
 

simplykristi said:

Just nothing going on right now.  Once things get going, there will be a lot of bloggers commenting.

Kristi
May 30, 2008 1:34 PM
 

LVStormSpotter said:

pvt, u may be right but after looking at that satellite u can clearly see some cumulus building on that boundary in Nebraska.

May actually develop to the north as well.

we will have to keep an eye up north on that boundary
May 30, 2008 1:35 PM
 

Braysmama said:

Bewild79-I was there last night too-in the front row. If it wasn't for the breeze-it may have been a little too warm.

Anyway, should I worry about putting up the lawn furniture for tonight-I'm going to Springfield and if there's nasty weather heading our way I'd like to prepare!
May 30, 2008 1:38 PM
 

bewild79 said:

Braysmama,
I was right at the gate for VIP.  Had lots of fun.  
May 30, 2008 1:41 PM
 

kcwxguy said:

John/pvt, I am with you all..I am giving up on central MO.  I don't like the parameters...

I am very interested in what the NWS put out in their HWO for Fall City NE - SWward...

As we all have mentioned, Manhattan looks good...and the SE direction of the parameters on a loop make this very interesting.

;-)
May 30, 2008 1:47 PM
 

simplykristi said:

For Kearney news, go here:  http://www.kearneyhub.com/site/news.cfm?brd=268&nr=1&nostat=1

It's the news website for Kearney, Nebraska.  Lots of coverage on the tornadoes that hit there late yesterday afternoon and early evening.

Kristi
May 30, 2008 1:48 PM
 

simplykristi said:

Scott,
You going to chase today?

Kristi
May 30, 2008 1:49 PM
 

kcwxguy said:

Beautiful forecast sounding for KMCI at 21Z.  I spy a "handgun".

http://rucsoundings.noaa.gov/
May 30, 2008 1:50 PM
 

bellgolf08 said:

kcwxguy-do you give up on sedalia also?
May 30, 2008 1:50 PM
 

LVStormSpotter said:

very impressive cumulus forming directly south and east of me!!!
May 30, 2008 1:51 PM
 

f00dl3 said:

Storms fireing right in Kansas City metro right now
May 30, 2008 1:53 PM
 

kcwxguy said:

Kristi

No...not chasing today.  I prefer discrete supercells...line/MCS chasing is beyond my current skill level, and not fun trying to dodge hail.
May 30, 2008 1:55 PM
 

Dwxtracker said:

New blog
May 30, 2008 1:59 PM
 

kcwxguy said:

Forecast sounding is picking up on a 800mb windshift at 21Z..from the WSW to NW and the cap builds a bit...wonder if the sounding are picking up on a outflow boundary from what is building to our NW?

Surface winds still out of the WSW then..so something is going on...

Thoughts?
May 30, 2008 1:59 PM
 

simplykristi said:

I don't blame you, Scott. :)  It's no fun to chase when there are no tornadoes to chase.  I am hooked on watching the live feeds from storm chasers. :)

Kristi
May 30, 2008 2:04 PM
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