Movement of Dennis Remains into Texas

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JenBayles
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Movement of Dennis Remains into Texas

#1 Postby JenBayles » Thu Jul 14, 2005 8:32 am

From Dr. Neil Frank in Houston:

We are seeing a change in the upper air pattern that will set the stage for an increase in rain chances through the weekend. A piece of the upper air remains of what was Hurricane Dennis will pinch off and move into Texas This will increase the instability over the state. Add in abundant tropical moisture and daytime heating, and the area will get scattered to at times numerous showers and thunderstorms.


http://www.khou.com/weather/

Dumb question: should this verify, will the remains of Dennis allow enough of a weakness to bring Emily further north than currently forecast?
Last edited by JenBayles on Thu Jul 14, 2005 8:50 am, edited 1 time in total.
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#2 Postby deltadog03 » Thu Jul 14, 2005 8:36 am

not sure but, i was thinking the same thing....cuz, not all models show that piece of dennis coming back SW....that might be someting to really watch though...
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#3 Postby JenBayles » Thu Jul 14, 2005 8:39 am

This is the first I've heard of it, and when Dr. Frank speaks, I perk up and listen.
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#4 Postby deltadog03 » Thu Jul 14, 2005 8:40 am

FWD has been really talking about this the past few days...and what is up with the trof forecasted to come down near us??
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#5 Postby gboudx » Thu Jul 14, 2005 8:42 am

Dunno deltadog, but I'll take this rain we've been having, especially this time of year. For a while there it looked like we might not see rain until September.
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#6 Postby duris » Thu Jul 14, 2005 8:58 am

deltadog03 wrote:FWD has been really talking about this the past few days...and what is up with the trof forecasted to come down near us??


Inquiring minds want to know. This from N.O. AFD:

NOCTURNAL CROP OF SH/TS GETTING STARTED OVER THE COASTAL WATERS
THIS MORNING. 700MB TROUGH THAT HELPED TO CAUSE THE TS OVER
CENTRAL AND EAST TX WILL MOVE SLOWLY EAST AND STALL ACROSS EAST
TX. THIS BOUNDARY WILL PROVIDE AN AREA FOR WEAK DISTURBANCES TO
MOVE THROUGH...INITIATING COMPLEXES OF SH/TS WHICH WILL GET
PICKED UP IN THE MEAN FLOW BRINGING THEM EAST BOUND. NO CHANGE IN
THE 700 TROUGH POSITION IS ADVERTISED BY ANY MODELS THROUGH THE
REMAINDER OF THE RUN WHICH IS WHY QPF IS PAINTED OVER THE AREA FOR
THE NEXT SEVERAL DAYS.

ANOTHER STRANGE TREND IS THE AMOUNT OF EARLY TROPICAL ACTIVITY
IN THE ATLANTIC BASIN COMPARED TO THE PACIFIC BASIN. NO STORMS
HAVE WENT OUT INTO THE OPEN WATERS OF THE ATLANTIC EITHER THIS
YEAR. LOOKING AT HEMISPHERIC SATELLITE...IT SHOWS SOME VERY STRONG
UPPER LEVEL EASTERLIES OVER THE EXTREME EASTERN PACIFIC WHERE MOST
EAST PAC TROPICAL CYCLONE SEEDLINGS ARE BORN. THESE STRONG WINDS
ARE LOCATED FROM SOUTH AMERICA THROUGH CENTRAL AMERICA ENDING OVER
NORTHERN MEXICO. THE CARIBBEAN AND GULF ARE MAINLY UNDER UPPER
RIDGING. SIMPLY HAVEN'T SEEN TOO MANY TROPICAL SEASONS WITH THESE
CONDITIONS OR WHERE THE ATLANTIC IS BEATING OUT THE EAST PAC.

EMILY STILL ON ITS WESTERLY COURSE AND GLOBAL MODELS CONTINUE TO
BE IN STRONG AGREEMENT IN HAVING HER TRACK WNW ACROSS THE
CARIBBEAN BEFORE FALLING ONTO THE YUCATAN PEN EARLY ON THE 18TH.
WILL NOT SPECULATE ON WHERE SHE WILL GO AFTERWARDS BUT WILL SIMPLY
HAVE TO SEE IF THE TEXAS TROUGH CONTINUES TO BE A STRONG AS THE
GLOBAL SUITE ARE ADVERTISING.
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#7 Postby Nimbus » Thu Jul 14, 2005 9:08 am

This is a very interesting feature.
Almost looks as though it is splitting off the western part of the ridge that was over the gulf and pushing it southwest.

Dennis remains may border the western edge of the high pressure area Emily is moving west through in a few days.

Things are pretty busy in the water vapor loop already and Emily's intensification is just going to increase the dynamic flow.
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#8 Postby canegrl04 » Thu Jul 14, 2005 9:11 am

This is weird.We've been getting popup afternoon thunderstorms the last few days.All because of Dennis remnents
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Re: Movement of Dennis Remains into Texas

#9 Postby vbhoutex » Thu Jul 14, 2005 9:13 am

JenBayles wrote:From Dr. Neil Frank in Houston:

We are seeing a change in the upper air pattern that will set the stage for an increase in rain chances through the weekend. A piece of the upper air remains of what was Hurricane Dennis will pinch off and move into Texas This will increase the instability over the state. Add in abundant tropical moisture and daytime heating, and the area will get scattered to at times numerous showers and thunderstorms.


http://www.khou.com/weather/

Dumb question: should this verify, will the remains of Dennis allow enough of a weakness to bring Emily further north than currently forecast?


Not a stupid question at all Jen. It is a possibility. Of course the timing, if this does happen, is everything here, meaning where is Emily when/if this weakness happens. Probable???? Possible, yes. Even without this thrown into the mix Texans and for that matter need to be monitoring Emily closely, especially during and after this weekend.
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#10 Postby deltadog03 » Thu Jul 14, 2005 9:18 am

yeah...this is very interesting...JB made mention that the trof may split and come between the two ridges...towards TX....interesting indeed
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#11 Postby CaptinCrunch » Thu Jul 14, 2005 9:34 am

NWS FT WORTH TX
THUR 14 2005


.DISCUSSION...
THE REMNANTS OF DENNIS WAS LOCATED OVER THE OHIO AND TENNESSEE RIVER
VALLEYS WITH A SHORT WAVE TROUGH EXTENDING INTO OKLAHOMA. THE SHORT
WAVE TROUGH WILL PIVOT INTO NORTH TEXAS TODAY AND SHARPEN THE TROUGH
UP WITH A POSSIBLE DETACHED CIRCULATION DEVELOPING OVER THE ARKLATEX
REGION THURSDAY NIGHT INTO SATURDAY AS DENNIS MERGES INTO THE
WESTERLIES OVER THE GREAT LAKES. OVER THE WEEKEND... RIDGING TO THE
EAST WILL BUILD WESTWARD... PUSHING THE UPPER TROUGH WEST OF NORTH
TEXAS BY SUNDAY WHERE IT WILL REMAIN FOR A WHILE (AWAITING EMILY).
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#12 Postby Swimdude » Thu Jul 14, 2005 10:26 am

Houston's been getting those afternoon thunderstorms a bunch over the last several days... [Anyone that lives in Houston saw it yesterday for sure!] I find it odd that this could be associated with Dennis, but whatever. We sure could use the rain!
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#13 Postby JenBayles » Thu Jul 14, 2005 10:30 am

Yeah Swimdude - I saw it alright - all around me but not a drop at the house. The Bear Creek Dome holds!
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#14 Postby wlfpack81 » Thu Jul 14, 2005 1:48 pm

Norman AFD had been mention this possibility of Dennis remnants sliding back sw-ward for the last few days as well.
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#15 Postby WaryEye » Thu Jul 14, 2005 2:03 pm

Dennis is still up here in Ohio, we got tons of rain this morning, it is sticky out and miserable. On and off rain constantly the last few days. Here is an excerpt of our local forecast:

Your Triple Doppler Forecast from Toledo's Weather Station ...

Still dealing with the remnants of Dennis. That means humid conditions continuing with a good chance of afternoon and evening thunderstorms. They don't last long...but they still can "put down" some heavy rainfall.

Drier weather by the middle of next week.

Meteorologist Michael Schlesinger
NBC 24
Toledo's Weather Station
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#16 Postby Swimdude » Thu Jul 14, 2005 2:05 pm

JenBayles wrote:Yeah Swimdude - I saw it alright - all around me but not a drop at the house. The Bear Creek Dome holds!


Exactly what happened to me. However, at the moment, it's POURRRRING and thundering like crazy!
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#17 Postby southerngale » Thu Jul 14, 2005 2:16 pm

Swimdude wrote:Houston's been getting those afternoon thunderstorms a bunch over the last several days... [Anyone that lives in Houston saw it yesterday for sure!] I find it odd that this could be associated with Dennis, but whatever. We sure could use the rain!


I have been getting good thunderstorms every day this week. It is so nice to hear thunder and watch the lightning and rain again. Today we even had a 3.72"/hour rain rate! One day, it got pretty bad with high winds and hail, and a tree snapped and the top half of it missed my car by INCHES! But I'm loving all this rain...we even had a flood advisory today. It looks like a good chance this continues for the next several days too. :)

Even though we're still well behind in our average, the ground is getting saturated.
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#18 Postby ohiostorm » Thu Jul 14, 2005 2:29 pm

We got some very nasty thunderstorms here in Eastern Ohio because of Dennis. They dropped between 1.5 and 4 inches in an hour. I drove through it and the winds were so bad that the rain was pounding against my driver side window and not my windshield. Very insane. Creeks instantly rose but nothing major.
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#19 Postby vespersparrow » Thu Jul 14, 2005 2:34 pm

Pretty weird how Ivan came through Pensacola banged a uey and ended up in Texas, now Dennis is doing it too.
Wow.
:eek:

Kinda creepy thinking about it.
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#20 Postby Houstonia » Thu Jul 14, 2005 3:05 pm

JenBayles wrote:Yeah Swimdude - I saw it alright - all around me but not a drop at the house. The Bear Creek Dome holds!


Not so just up the road at Cy-Fair. It's pouring here, it poured yesterday, and I don't know when I'm gonna see the sun again...
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