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Heat, rain, and more...August 5th, 2008

Good morning bloggers,

The Olympics begin on NBC Friday night at 6:30 PM.  We will be debuting our new NBC Action News Weather Center and News Set at 11 PM Friday night. 

Thunderstorms and rain showers developed overnight above the cap, so they were very high based.  Now, the forecast for today is very complex.  The very slow moving cold front is still just northwest of Kansas City.  It will likely get close to 100 degrees near and south of the front with upper 80s to near 90 north of the front.  Here is the surface map as of 7 AM:

This front, technically a stationary front because it is moving so slowly, will continue a southward movement today.  It should stall southwest and south of Kansas City tonight.  Thunderstorms will be possible near the front today, and then north of the front tonight and Wednesday. 

The weather pattern is going through a rather significant shift, or change.  The anticyclone, or upper level high, that has been creating our moderate heatwave, will weaken considerably by tomorrow night, and retreat back to its favored position over the desert southwest.  What is left of Edouard will be moving across Texas, and have no impact on our weather because we are going into flow from Canada.  As this transition occurs, the front will stall just south of Kansas City tonight, and this will place our region in the favored position for a slow moving complex of thunderstorms.

The set-up exists for some excessive rainfall in our local region within the next 48 hours.  But, who will be in the bullseye?  The 06z NAM model is predicting a 9 inch bullseye over northeastern Kansas.  Picking out the exact location of where the heaviest rain will fall is going to be quite difficult, but we will be making special graphics to show this potential on our weathercasts today and tonight on NBC Action News.

So, the bottom line, is today is the last very hot day, for quite some time.  There are more fronts and possible wet set-ups likely in the next two weeks.

Have a great day!  We are excited about sharing our new Weather Center with you beginning Friday night.  It is almost completely done, and we will begin practice newscasts today in preparation for its debut.  Jeremy Nelson will be tracking the weather this morning on our Midday newscast at 11 AM.  Jeff Penner and myself will be working on a great weather presentation for tonights 5, 6, and 10 PM newscasts, and on our 24 hour weather channel, NBC Action Weather Plus. 

Gary

Published Tuesday, August 05, 2008 6:53 AM by glezak

Comments

 

juba said:

Sounds nice, it is still hot outside at Jhonson County Executive Airport with really ominus clouds that looks like cirrius, except black! Have a nice day, ;)

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

Juba,

Those are very high based cumulonimbus clouds.  I call them altocumulonimbus clouds, as the bases have been way up there around 12,000 feet.

Gary

August 5, 2008 7:37 AM
 

Trentonite said:

Any hints on where you think the bullseye will line up?  Are you agreeing with the NAM?

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

You will have to watch our weathercasts today and tonight for this answer.  I will make every attempt to answer it on our shows tonight.  It is something that we will be analyzing and making special graphics for.

Gary

August 5, 2008 8:21 AM
 

Hamons Custom Landscaping said:

.1 inches of rain at 91st and Antioch
August 5, 2008 8:25 AM
 

nastyweather said:

Well it sounds like the Chinese are going to try and prevent it from raining at the opening ceremony Friday night with their weather modification program.  Apparently they have an array of rockets and artillery guns to shoot dust into threatening clouds.  Call me crazy but don't they have enough dust and other crap in the air already?  Anyway, it sounds like this doesn't even work from reading the article.

http://www.palmbeachpost.com/sports/content/sports/epaper/2008/08/04/c1a_rain_guns_0805.html
August 5, 2008 8:45 AM
 

N2mountains said:

Gary,
The anticyclone, when it retreats back to the southwest and sits out there, does it finally disapate and just disolve itself as we go into the late summer and early fall, or will it eventually move east again and pass on through with seasonal changes? and maybe in a less dramatic heatwave. I am liking the 7 day with 80's in it.

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

The anticyclone will likely retreat to the west, but it will almost certainly move back out to the east before the end of the month.  It may not come right out over Kansas though.  As the jet stream strengthens as we move into September the upper high will be forced south and it will weaken.  But, this could take weeks.

Gary

August 5, 2008 9:02 AM
 

BrianJayhawk said:

I'm hoping for rain... I need a good day to sleep!  I spent all last week at the Ozarks, and except for the day the remnants of Dolly moved through, it was hot and very humid.  In the evening if you were in your car, all the windows would fog up and it was on the outside.  We had to use our windshield wipers to remove it!

-Brian
August 5, 2008 9:07 AM
 

Mark M said:

0.20 inches of rain last night in western KCK
August 5, 2008 11:19 AM
 

Zazel said:

It's always interesting to watch model runs, and it leaves me relieved that I have a job where there is more certainty.  It appears to me the NAM no longer shows the major rainfall event you have talked about above but the GFS continues to allude to the possibility.  What I find even more intriguing than the model shifts is that the NWS in their 6am HWO talks about the potential of the rainfall the models hint at yet, they claim the majority of the rainfall will be south of the river when both models seem in agreement that the heavier rain will be north of the river, perhaps as far north as the Nebraska/Iowa border.  What gives?

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

Well, not really.  It isn't just the fact that the NAM had a 9 inch bullseye and now it doesn't.  It still looks the same to me. As a weather forecaster you just have to look at everything and then make up your own mind.  The latest data still shows the strong likelihood of organized areas of convection (thunderstorms) in the next 48 hours.  So, just because one run predicts 1 inch of rain, and the next run predicts 9 inches of rain, just doesn't mean a lot to me.   There is a chance of an excessively heavy rain event within 100 miles of your location.  Trying to pick out the spot that gets the bullseye is still the challenge.  But, nothing has changed, except for the model output.

Gary

August 5, 2008 11:35 AM
 

weatherwunder said:

Gary, I don't know if you had a chance to see my blog the other day, but just thought I'd resend a modified version:

May I make a couple of suggestions?

1.  For the weather forecast page, can the font size of the "time code" in the upper left hand corner of the ESP screen be enlarged to the size of the "city" fonts or a bit higher so it can easily be read while looking at the movement of precipitation, etc.?  

2.  Also, would it be possible at the top of the page to show:

        Last updated ___(date)___   ___(time)___

Another question I had re the font size on the blog was kindly answered by two of the other bloggers!

As always, thank you for your great weather forecasting!  Edna

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

Edna,

Thanks for the suggestions.  I will look into it today.  In the next week or two as we debut our new Weather Center and News Set things will settle down.  So, give me a little time to think this out and work on some other ideas.

Gary

August 5, 2008 11:40 AM
 

dryslot said:

do you think the cool front will arrive by 5 pm today? starting soccer practice with my teams. and am not looking FW to being out there for 2 1/2 hrs this evening
August 5, 2008 1:23 PM
 

lezakEF5 said:

I am going to make a guess and say that the heaviest rain wil fall over North Central Missouri.

I was bored the oter night, and and went and got a couple Marceline yearly rainfall totals from looking at the estimated rainfall totals. here is what I got:

2006 - 35 to 40 inches
2007 - around 40 inches
2008 - so far about 40 inches

Here is the monthly rainfall estimate for 2008 in Marceline:

JAN - 0.5"
FEB - 2.0"
MAR - 2.0"
APR - 6.0"
MAY - 4.0"
JUN - 15.0"
JUL - 10.0"
AUG - Less than 1/10th

I pretty much do that when I get bored. I thought it was pretty interesting.

Alex
August 5, 2008 1:29 PM
 

radman22 said:

Looks like KCI just hit 90....   should be the last day for awhile
August 5, 2008 1:58 PM
 

bewild79 said:

Is is supposed to wait till tonight to rain?
August 5, 2008 2:01 PM
 

kvluvalcsens said:

any idea as to when the front will get here in Lees Summit?  We have soccer tonight at 5:30 and I'm not looking forward to it.
August 5, 2008 3:10 PM
 

weathermom said:

On the weather underground radar, I'm seeing a thin green line heading south/southeast through the metro.  Is that the front?!!  Is cooler air getting that close??!  I'm so excited!!....it just can't get here fast enough for me.
August 5, 2008 3:11 PM
 

GaryB said:

Gary,
Where does one find the past 30 day history of highs and lows at KCI?  
August 5, 2008 3:13 PM
 

bewild79 said:

Does anyone know when it is supposed to rain here?
August 5, 2008 3:29 PM
 

radman22 said:

Gary B:    Here is a link to the WU page.   It is on August, but just click back to previous month to see July.

http://www.wunderground.com/history/airport/KMCI/2008/8/5/MonthlyHistory.html#calendar
August 5, 2008 3:31 PM
 

Nick Rau said:

Well it looks like this will be a non 100 degree summer for KCI!! If only it were to get to 99;)
At work I seen the lightning from the convection to my south so that was neat. Then when I got home I heard about what happened in Chicago with tornado warnings during a Cubs game, and the high winds and heavy rain that hit them, very impressive, I think there were even some tornadoes that did touch down to.  A baseball stadium is not really the place that I would want to be when a derecho comes knocking!! ( although the view of it coming in would be quite impressive, and scary.
August 5, 2008 3:57 PM
 

Nick Rau said:

I just read up on what the NWS office in Chicago had on the storms last night and they said there was a 94 mile per hour wind gust with that bow echo!  In a weird irony, that bowing MCS probably did more wind damage over a similar area in size then the land falling tropical storm did.
August 5, 2008 4:06 PM
 

kcwxguy said:

I am LOVING this weather!

Since July 16th, there has been 9 days 90 degrees or warmer.  That translates to 9/21 days or 43%.

[Per using the link above - love that link in the ability to download to CSV!]

The high has been 97 degrees at KMCI, and likely will hold through the duration.

If you look at the remaining days - 26 and take that same 43%, that would yield 11 more days of 90 or above.

This would sum 20 days with a high of 97.  That would work out well....  ;-)

Hang on LRC!  I used it extensively for the contest and pray it can hang on - even as weak as it is!

August 5, 2008 4:13 PM
 

RDub said:

Nick-I was at a minor league game in Davenport, IA when a big windstorm came through. They actually stopped play before the rain came, because the wind blew a huge cloud of sand and dust in just ahead of the storm. No one could see more than a few feet, and everything was covered in a layer of it before the rain came and washed it away.
August 5, 2008 4:23 PM
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