Dr. Jeff Masters' WunderBlog

Flood walls hold on the Susquehanna
Posted by: Dr. Jeff Masters, 29. kesäkuuta 2006 klo 12:09 (GMT) +0
The Army Corps of Engineers is breathing a sigh of relief today. After the failure of New Orleans' levees during Hurricane Katrina revealed that the Army Corps had failed to properly construct those structures, they must have been very anxiously watching the flood walls restraining the rampaging Susquehanna River in Wilkes-Barre, PA yesterday. The new flood walls, built in response to the record flooding from Hurricane Agnes in 1972, were built 3-5 feet higher at a cost of $200 million. The new walls took 20 years to build, and were completed in 2003. Do to the uncertainty of how long the new walls could hold back such a large volume of water, over 100,000 people were evacuated yesterday from the Susquehanna's flood plain. The Susquehanna crested late Wednesday at 34.4 feet, just six feet below the tops of the new flood walls, and 16 feet above flood stage. The river is slowly declining, and was at 32 feet this morning at 4 am EDT.


Figure 1. Measured rainfall from the week's rains. Tropical moisture streaming north along a stationary trough of low pressure triggered rains as heavy as 3 inches per hour in the mountains of Pennsylvania.

Hurricane Agnes of June 1972 did $8.6 billion in damage to Pennsylvania and surrounding areas. Agnes at the time was the costliest hurricane in history, a distinction it held for 20 years--when Hurricane Andrew came along. Thanks to the recent spate of intense hurricanes hitting the U.S., Agnes has fallen to number nine on the list of costliest hurricanes of all time. Six of the nine costliest hurricanes of all time occurred in the past two years!

Tropical wave in the Caribbean
A strong tropical wave moved through the Windward Islands yesterday, bringing heavy rain and wind gusts up to 36 mph. Strong upper-level winds from the west severely disrupted the wave overnight. This wind shear of 20-30 knots is expected to continue, and no development is likely today. The wave is expected to bring thunderstorms and gusty winds to Puerto Rico and Hispanolia as it moves west-northwest at 20 mph. The wave could get more organized once it gets closer to the U.S., if it can find an area of lower wind shear to take advantage of. The prospects of this happening are low, as most of the ocean areas surrounding the U.S. are expected to have high wind shear over the coming week. None of the computer models develop this wave, and there is really nothing anywhere in the Atlantic that looks to be of concern over the next few days.


Figure 2.Latest satellite image of the tropical wave in the Caribbean.


Figure 3. Model forecast tracks of the tropical wave in the Caribbean.

Thanks to all of you who tuned into my "Tropical Round Table" interview last night on http://radio.nhcwx.com/. I'll be summarizing much of what I said in tomorrow's blog. In particular, I'll focus on how different the large-scale atmospheric patterns for this year's hurricane season are compared to last year's season. This year will not be a repeat of 2005!

Jeff Masters
()
Susquehanna River flooding in Endicott (dockwpk)
Flooding afternoon of June 28, 2006 - Endicott. Union Endicott High School athletic facilities
Susquehanna River flooding in Endicott
Categories: Flood
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452. bappit 30. kesäkuuta 2006 klo 02:36 (GMT)    
Yeah! The one I was thinking of, turns out. I posted a couple links on Taz's blog.
Member Since: 18.05.2006 Posts: 5 Comments: 4423
453. Baybuddy 30. kesäkuuta 2006 klo 02:38 (GMT)    
I feel as though I'm getting the silent treatment. Should I be more assertive?
Member Since: 26.06.2006 Posts: 0 Comments: 1115
456. bappit 30. kesäkuuta 2006 klo 02:39 (GMT)    
Cool Wikipedia article JFLORIDA.

It notes:
"estrogen is believed to have a protective effect against V. vulnificus."

More on topic:
"Health officials clearly identified strains of V. vulnificus infections among refugees from New Orleans due to the flooding there caused by Hurricane Katrina."
Member Since: 18.05.2006 Posts: 5 Comments: 4423
458. watchingnva 30. kesäkuuta 2006 klo 02:43 (GMT)    
i get such a hard laugh out of "....THE NEXT STATEMENT WILL BE ISSUED BY STORMTOPS WEATHER OFFICE WHEN AND IF A DEPRESSION DEVELOPS.....002130............"
everytime. I just find it entirly too amusing. lol, hows everyone else doing this fine evening.
Member Since: 7.09.2005 Posts: 3 Comments: 1310
459. FLweather 30. kesäkuuta 2006 klo 02:44 (GMT)    
Does the blob in the Bay have a chance of heading more east towards lets say..the yucatan or florida?
Member Since: 29.06.2006 Posts: 0 Comments: 18
460. Ldog74 30. kesäkuuta 2006 klo 02:44 (GMT)    
The problem is that it is not even really an "it" yet. There is not any type of real circulation to go anywhere, until it develops that, it will just be a rather large t'storm and it will jut act like a rather large t'storm. IMO
Member Since: 11.06.2006 Posts: 0 Comments: 165
462. bappit 30. kesäkuuta 2006 klo 02:48 (GMT)    
Austin, Texas, forecast discussion:

THE TROPICAL WAVE IN THE BAY OF CAMPECHE CONTINUES TO MOVE NORTHWEST. THIS WILL CLIP THE COUNTIES SOUTH OF THE ESCARPMENT TOMORROW, FRIDAY. ONCE THE AXIS OF THIS TROF MOVES WEST OF US, THE FULL TROPICAL AIRMASS WILL FOLLOW. THE SCENARIO IS FOR THE ITCZ TO FLOW NORTH INTO TEXAS SATURDAY, SUNDAY AND MONDAY.
Member Since: 18.05.2006 Posts: 5 Comments: 4423
466. bappit 30. kesäkuuta 2006 klo 02:53 (GMT)    
These disturbances are very important for south Texas. Here is part of Brownsville discussion.

GFS CONTINUES TO INIT BEST WITH SEMI-TROPICS AND CURRENT BOILING IN THE BAY OF CAMPECHE...WITH MUCH MORE AGGRESSIVE TSTM DEVELOPMENT OVR LONGER PD OF TIME...AND HIER QPF THAN SISTER NAM. WILL CONTINUE TO RUN WITH GFS SOLUTION FOR ALL MASS FIELDS AND NOTE AGREEMENT WITH UKMET AND ECMWF IN BRINGING STRONG PVA NW FM BAY OF CAMPECHE AND ASSOCIATED RAFL. BRO IS DOWN 6 INCHES IN RAFL FOR THIS YEAR...WITH DEFICITS -13.14 INCHES IN BRO FM 2005...-10.75 FOR HRL AND MCALLEN (THANKS TO EMILY) ONLY RAN -5.23 INCH DEFICITS IN 2005. (REMEMBER...SPIRAL BANDS TRAINED OVR MFE...WITH NADA IN HRL/BRO)
Member Since: 18.05.2006 Posts: 5 Comments: 4423
467. bappit 30. kesäkuuta 2006 klo 02:55 (GMT)    
JFLA, here's the complete sentence.

"Females who had a gonadectomy experienced increased mortality rates, as estrogen is believed to have a protective effect against V. vulnificus."
Member Since: 18.05.2006 Posts: 5 Comments: 4423
468. Baybuddy 30. kesäkuuta 2006 klo 02:56 (GMT)    
Thanks JF and jp I thought I had body odor or something.
Member Since: 26.06.2006 Posts: 0 Comments: 1115
470. CosmicEvents 30. kesäkuuta 2006 klo 03:01 (GMT)    
Typical ST modus operandi. Any batch of thunderstorms anywhere in or near the Gulf of Mexico is headed right down the throat of the Mississipi. Must have an ex-wife that lives there. As at least a category 2. Last year he had Katrina as a category 6. Whoops..sorry...I remember nobody can invoke that category except you. Good for a laugh at least. You should go with your very first thought ST. Remember....slow early season. That I find is usually correct. But then you change. These thunderstorms in the Bay of Campeche will probably deflate just like the ex-wife.
Member Since: 3.08.2005 Posts: 10 Comments: 5133
471. bappit 30. kesäkuuta 2006 klo 03:02 (GMT)    
BayBud:

When two tropical systems are near each other, they create problems for each other. If one is strong and the other weak, the outflow from the strong one shears the weak one. I guess if they are both weak then they steal moisture from each other and limit the possibility of growth.
Member Since: 18.05.2006 Posts: 5 Comments: 4423
472. FLweather 30. kesäkuuta 2006 klo 03:05 (GMT)    
000
ABNT20 KNHC 300210
TWOAT
TROPICAL WEATHER OUTLOOK
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1030 PM EDT THU JUN 29 2006

FOR THE NORTH ATLANTIC...CARIBBEAN SEA AND THE GULF OF MEXICO...

SHOWERS AND THUNDERSTORMS CONTINUE IN THE BAY OF CAMPECHE. THIS
ACTIVITY IS EXPECTED TO MOVE GENERALLY NORTHWESTWARD OVER THE NEXT
DAY OR TWO...BUT SURFACE PRESSURES IN THE AREA REMAIN HIGH AND
UPPER-LEVEL WINDS ARE PRESENTLY UNFAVORABLE FOR SIGNIFICANT
DEVELOPMENT.

CLOUDINESS AND SHOWERS ACROSS THE LESSER ANTILLES ARE ASSOCIATED
WITH A TROPICAL WAVE INTERACTING WITH AN UPPER-LEVEL TROUGH.
TROPICAL CYCLONE DEVELOPMENT IS NOT EXPECTED.

ELSEWHERE...TROPICAL STORM FORMATION IS NOT EXPECTED THROUGH
SATURDAY.
Member Since: 29.06.2006 Posts: 0 Comments: 18
473. OSHNBLU 30. kesäkuuta 2006 klo 03:10 (GMT)    
good to see ya CosmicE
Member Since: 13.07.2005 Posts: 117 Comments: 5191
475. ProgressivePulse 30. kesäkuuta 2006 klo 03:22 (GMT)    
Good evening all! Looks like it will be a quiet vacation.
Member Since: 19.08.2005 Posts: 5 Comments: 4443
476. Baybuddy 30. kesäkuuta 2006 klo 03:24 (GMT)    
I wish it would rain.
Member Since: 26.06.2006 Posts: 0 Comments: 1115
477. ProgressivePulse 30. kesäkuuta 2006 klo 03:28 (GMT)    
However, I do think the wave moving through south fla this weekend will pack more of a punch than last weekend. Mainly in the way of winds, I was noticing winds of 23kts sustained in the antilles and gusting to 39kts as an unorganized wave.
Member Since: 19.08.2005 Posts: 5 Comments: 4443
478. burg1999 30. kesäkuuta 2006 klo 03:29 (GMT)    
For those of you who missed it (including myself), Jeff's appearance on the Tropical Roundtable is now up on the podweather.com site as an MP3. I just downloaded it and will listen tomorrow.
479. MZT 30. kesäkuuta 2006 klo 03:30 (GMT)    
I wouldn't be so quick to dismiss either of these systems. The Campeche one isn't very strong but the circulation is visible. The Anilles storm is a disorganized mess, but it's held on for a while now, and I think it will still be open for discussion for at least another day or two.

I say 50% chance of a storm developing from one or the other. We are getting close to July and it looks like the tropics are beginning to bubble regularly in more than one spot at a time.

I do not think this season will be a "bust".
Member Since: 24.09.2005 Posts: 0 Comments: 782
480. tornadodude 30. kesäkuuta 2006 klo 03:53 (GMT)    
hi again. I think the weather will be descent for my Northeast trip this week. Except for a chance of T-Storms now and then. so i wont be on for a week or so after tonight.

depressing:(
Member Since: 28.06.2006 Posts: 22 Comments: 7816
481. tornadodude 30. kesäkuuta 2006 klo 03:57 (GMT)    
here is a neat web page about indiana weather.

Link
Member Since: 28.06.2006 Posts: 22 Comments: 7816
482. tornadodude 30. kesäkuuta 2006 klo 03:59 (GMT)    
bye yall. "see" ya in a few days!
Member Since: 28.06.2006 Posts: 22 Comments: 7816
483. ProgressivePulse 30. kesäkuuta 2006 klo 04:02 (GMT)    
Traveling to South Bend, IN tomorrow for a week Tornado, supposed to be nice there. Where you headed?
Member Since: 19.08.2005 Posts: 5 Comments: 4443
484. HurricaneRoman 30. kesäkuuta 2006 klo 04:03 (GMT)    
Yeah i hope the wave in the Antilles gives us at least 30 mph gust here in south Florida unlike the last wave.
Member Since: 25.02.2006 Posts: 2 Comments: 958
485. sporteguy03 30. kesäkuuta 2006 klo 04:04 (GMT)    
The Lesser Antilles wave looks better organized this morning and the shear appears to have slacken and the T-storms are now contracting closer showing some slight strengthening...
Member Since: 7.07.2005 Posts: 0 Comments: 4840
486. ProgressivePulse 30. kesäkuuta 2006 klo 04:05 (GMT)    
Pressure Gradient will be alot higher with this wave Hurricane, more like a true wave, in and out.
Member Since: 19.08.2005 Posts: 5 Comments: 4443
487. ProgressivePulse 30. kesäkuuta 2006 klo 04:07 (GMT)    
High pressure is building into the gulf which will enhance winds and keep the rain at bay to enhanced normal tstorms here.
Member Since: 19.08.2005 Posts: 5 Comments: 4443
488. HurricaneRoman 30. kesäkuuta 2006 klo 04:08 (GMT)    
I was always enjoy winds less than 60 mph... even 60 can get scary at times though
Member Since: 25.02.2006 Posts: 2 Comments: 958
489. ProgressivePulse 30. kesäkuuta 2006 klo 04:09 (GMT)    
Sure can, I woulden't want to be driving in 60mph
Member Since: 19.08.2005 Posts: 5 Comments: 4443
490. Cavin Rawlins 30. kesäkuuta 2006 klo 04:12 (GMT)    
if there was low wind shear in June we would have reach the "E" storm already......

Know one can predict up to 100% if wind shear will be the same in the atlantic basin in July.

So what to do?
Member Since: 24.07.2005 Posts: 407 Comments: 19076
491. bigdil 30. kesäkuuta 2006 klo 04:29 (GMT)    
Hi All. I'm Dil.

Storm or no storm, we will all get weather with or without this systems intervention, or not. I bet 100% on that!

dil
492. HurricaneRoman 30. kesäkuuta 2006 klo 04:42 (GMT)    
I Hope the Carribean wave strengthens to 50 mph and hits S. Florida........ Tropical storm winds are fun here and there but nothing more! I had a heart attack with Wilma which only produced gust to cat. 2 couldn't imagine anything worse
Member Since: 25.02.2006 Posts: 2 Comments: 958
493. bigdil 30. kesäkuuta 2006 klo 04:52 (GMT)    
my prediction for the storms in the bay of Campeche:

Hurricane 1 into Marsh Island, LA +-50 miles.

Thoughts?

dil
494. ProgressivePulse 30. kesäkuuta 2006 klo 05:03 (GMT)    
Shear is to high Dil, High pressure building into the gulf will see it through landfall as a rain event.
Member Since: 19.08.2005 Posts: 5 Comments: 4443
495. VancouverWX 30. kesäkuuta 2006 klo 05:44 (GMT)    
Hi Progressive,

I grew up in Elkhart, IN, which is about 20 minutes from South Bend. I go back a couple of time a year to recruit at Purdue, and I always make sure I go to Das Essen Haus in Middlebury for some good Amish home style cooking. I got transplanted to Vancouver, WA, about 10 years ago, and I really miss the big thunderstorms.

I think that we will get a depression out of the gulf storm by tomorrow. I also think that the carribean system has a chance to develop in the next couple of days when the shear relaxes.

Garry
496. bigdil 30. kesäkuuta 2006 klo 06:13 (GMT)    
I agree Progressive, shear is high now, but it looks like shear will gradually drop as the intensity of the storm increases. The remaining amount of 'shear' will be utilized by the storm as guiding currents, directing the storm slightly easy of south LA (marsh island), IMO.

dil
497. Inyo 30. kesäkuuta 2006 klo 06:38 (GMT)    
i can't imagine why the giant blog in the e-pac isn't a depression yet, its clearly rotating and has outflow even. if it were the atlantic i bet it would already be classified. It's far from mexico, probably won't do much other than give the coast some waves, even if it does blow up.
Member Since: 3.09.2002 Posts: 42 Comments: 765
498. hurricane23 30. kesäkuuta 2006 klo 07:14 (GMT)    
Guys just updated my blog....Stop by and leave me a comment!Thanks adrian
Member Since: 14.05.2006 Posts: 8 Comments: 13327
501. ForecasterColby 30. kesäkuuta 2006 klo 09:24 (GMT)    
Randrewl, issues are generally not created purely out of politics. Global Warming had a scientific following, and politics made it bigger. People like to hear that we're all going to die, it grabs their attention.

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About JeffMasters
Jeff co-founded the Weather Underground in 1995 while working on his Ph.D. He flew with the NOAA Hurricane Hunters from 1986-1990.

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