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STL to AK and Back Again

by AngelaHutti from St.Louis

Last Post 22 days, 16 hours Ago

Angela’s Corner: July 27, 2008

Jul 27, 2008 | 12:10 PM
Category: Weather

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A slow moving warm front across the Plains slides eastward Sunday and will serve as the focus line Sunday evening for thunderstorms and possibly an MCS as it hits our hot and humid air. Some of the storms could be strong or severe. Strongest storms look to hit in the early morning hours of Monday and primarily St. Louis Metro and points east.

Temperatures will stay in the 90s throughout the week with high humidity levels. Tuesday should be the hottest day of the week with metro St. Louis high temps at or above 96 and heat index values above 105.

Thunderstorm chances return Wednesday as the moisture from former Hurricane Dolly heads back across the U.S. after getting picked up by the Jet Stream. We should see scattered thunderstorms through Thursday.

All is quiet in the tropics, both Atlantic and Pacific, as I type this on Sunday morning. We’ll have to keep an eye on the African coast to see if anything develops.

149 Comments | Add a Comment

Jul 27, 2008 | 4:57 PM

It looks like the SPC has the area in a meso disco. There will likely be a t-storm watch issued for a good part of the area in the next hour or so. Big time storms up in Iowa look to dive south and southeast toward us later this evening. Looks like another bumpy night.

WEAXWATCHER

Jul 27, 2008 | 5:10 PM

hey snow I was just looking at that. I have a question for whoever... how can the DP be in the 70's and the humidity be in the low 50'S? Seems just a little dry! I have been out side and it is anything but dry!!!! Have a good night!

WEAXWATCHER

Jul 27, 2008 | 5:30 PM

WW Comming!!!!

WEAXWATCHER

Jul 27, 2008 | 5:31 PM

WW up until 2AM a huge portion of the viewing area and points east and west...

WEAXWATCHER

Jul 27, 2008 | 5:33 PM

and north!!!

WEAXWATCHER

Jul 27, 2008 | 5:35 PM

My math is terrible... WW in effect until 1AM not 2AM...

WEAXWATCHER

Jul 27, 2008 | 5:47 PM

Well the humidity is climbing now... 60% here at scott... was 54 2 hours ago!

guyatacomputer

Jul 27, 2008 | 5:51 PM

I just put a note on last weeks blog cuz I didn't realize Angela had started a new one. oops

Do YOU understand this watch coming out this early, WEAX? I'm still waiting for the disco from the SPC but I'm not understanding issue the watch this far south this early. I'm looking at the MD and I could see having one as far south as Hannibal or so. But it seems premature for us IMHO.

WEAXWATCHER

Jul 27, 2008 | 5:58 PM

could be a little preme... but we are sitting in some really juicy air... the counties to our nouth will be the ones who will get the brunt of this for sure... here in St Clair IL, we are the farthest south and east in the watch... may see some rain and a few rumbles... but tthese stroms are hauling southeast at 50MPH right now sooooo could be a dericho soon and with the air as "ripe" as it is... maybe not too preme after all!!! We will see! Good to talk to you guy... it's been a while!!!!

guyatacomputer

Jul 27, 2008 | 6:07 PM

You've been missed, too, on some of our severe wx nights lately WEAX. But life is about organizing priorities and this takes a back seat to many other things.

Still waiting for the watch disco. Maybe they figure the MD is enough?

WEAXWATCHER

Jul 27, 2008 | 6:12 PM

It is out there... here ya go...

THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

WESTERN ILLINOIS
NORTHEASTERN MISSOURI

EFFECTIVE THIS SUNDAY AFTERNOON AND MONDAY MORNING FROM 525 PM
UNTIL 100 AM CDT.

HAIL TO 2.5 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 80
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 110
STATUTE MILES EAST AND WEST OF A LINE FROM 40 MILES NORTH
NORTHEAST OF KIRKSVILLE MISSOURI TO 35 MILES SOUTHWEST OF SAINT
LOUIS MISSOURI. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU3).

REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH
AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR
THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS
AND POSSIBLE WARNINGS. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY
DO PRODUCE TORNADOES.

WEAXWATCHER

Jul 27, 2008 | 6:13 PM

CONTD'

DISCUSSION...SEVERE STORMS LOCATED IN SRN IA ARE EXPECTED TO
CONSOLIDATE INTO A LINEAR MCS AND MOVE SEWD ALONG A WEAK
BOUNDARY...THAT IS LOCATED ALONG THE MS RIVER IN MO/IL. A DEVELOPING
COLD POOL...ALONG WITH STRONG INSTABILITY AND EFFECTIVE SHEAR NEAR
50 KT...WILL BE MOST SUPPORTIVE OF A DAMAGING WIND THREAT AS THE
SYSTEM MOVES SEWD AT 45 TO 50 MPH.

AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 2.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 70
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 600. MEAN STORM
MOTION VECTOR 32045.

...IMY

guyatacomputer

Jul 27, 2008 | 6:23 PM

Okay. That's definitely fuel for severe t-storms. As you said a derecho would be here in no time.

That disco was issued a full 50 minutes behind the watch being issued. Good thing it wasn't a warning or it would have expired before the disco came out

WEAXWATCHER

Jul 27, 2008 | 6:44 PM

LI's are already at -8... low level lapse rates ate near 7... sb capes are well above 3000... mil capes are above 2500... not too much shear, but the EHI's are at 4 and climbing... Even when the sun goes down we will have a very unstable airmass on top of us. This could be an interesting night to say the least!

guyatacomputer

Jul 27, 2008 | 6:55 PM

The bow echo in SE IA, moving into NE MO is not showing any signs of weakening that I see. And watching the motion on the DSM radar there is a nice line back all the way to west of Ft Dodge headed perfectly for the same area in north central MO that got huge quantities of rain late last week.

guyatacomputer

Jul 27, 2008 | 7:43 PM

Just had an outflow or boundary from something move through O'Fallon, MO. The wind has been pretty much calm all day. We just had 2 minutes of 25 mph, and then everything went right back to calm

WEAXWATCHER

Jul 27, 2008 | 7:43 PM

interesting!!!!????

WEAXWATCHER

Jul 27, 2008 | 7:46 PM

I do not see any outflow that far south, no outflow at all????

WEAXWATCHER

Jul 27, 2008 | 7:48 PM

the MCS appears to be taking a turn toward the east!!!!

WEAXWATCHER

Jul 27, 2008 | 7:54 PM

we are in for several rounds of TSRA... there is more building behind the first MCS!!!

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AngelaHutti

Born and raised in St. Louis, I'm living my dream of being a meteorologist. I came to Fox 2 in October 2006 after a few wonderful years doing weekend weather for KTVA CBS 11 in Anchorage, AK. Look for me weekend mornings on Fox 2 and at every Cardinals game I can possibly get to!

Member Since: 11/15/2006

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