ATL: IRENE - Remnants - Discussion

[Category 5]

The Raritan River in Bound Brook, NJ has exceeded Hurricane Floyd levels.

[CrazyC83]

The Raritan River in Bound Brook, NJ has exceeded Hurricane Floyd levels.

I noticed your tagline, Irene (2011) was technically a Cat 1 hurricane at the time, although I don't think NJ had hurricane sustained winds.

[WeatherGuesser]

Isn't there a barrier island town in NC that's completely cut off too?

[Sanibel]

That pressure had to materialize somehow. Seems it did so in the form of a Floyd II.


Vermont lost 3 historic covered bridges.

[Category 5]

The Raritan River in Bound Brook, NJ has exceeded Hurricane Floyd levels.

I noticed your tagline, Irene (2011) was technically a Cat 1 hurricane at the time, although I don't think NJ had hurricane sustained winds.

We did not, highest sustained I saw was probably in the 50s. Gusts may have gotten to 74 though briefly.

[mf_dolphin]

Something surreal about the picture above with floodwaters and yet the trees have christmas light glowing

[Hogweed]

Picture of Gilboa dam supposedly taken about an hour ago. I am confused as to why water appears to still be pouring over the top when the water level is now below the top of the dam according to the gauge.



Picture via http://yfrog.com/user/TUCapCon/profile (many more pics at link)

Uploaded with ImageShack.us

Video of Governor Cuomo's tour.

[youtube]http://www.youtube.com/watch?v=7dxy4dcTz4w[/youtube]

[CrazyC83]

The Raritan River in Bound Brook, NJ has exceeded Hurricane Floyd levels.

I noticed your tagline, Irene (2011) was technically a Cat 1 hurricane at the time, although I don't think NJ had hurricane sustained winds.

We did not, highest sustained I saw was probably in the 50s. Gusts may have gotten to 74 though briefly.

Also is it possible to put that video on YouTube for everyone to see? I know from others it was amazing and surely the pictures say that too, but I wish I could see it and others.

[tolakram]

Picture of Gilboa dam supposedly taken about an hour ago. I am confused as to why water appears to still be pouring over the top when the water level is now below the top of the dam according to the gauge.

Dams with earthen walls, as this one appears to have, require an emergency spillway so that water can never breach the earthen part of the dam. Water going over and earthen wall will cause it to fail rather quickly. The spillway sits a safe distance below the top so I imagine it will continue to overflow (spill) until the water gets below that point. I had to learn this when the city I used to live in proposed building a detention basin behind our house.

Beyond that it really depends on the specifics of this particular dam.

http://en.wikipedia.org/wiki/Schoharie_Reservoir

[Hogweed]

Picture of Gilboa dam supposedly taken about an hour ago. I am confused as to why water appears to still be pouring over the top when the water level is now below the top of the dam according to the gauge.

Dams with earthen walls, as this one appears to have, require an emergency spillway so that water can never breach the earthen part of the dam. Water going over and earthen wall will cause it to fail rather quickly. The spillway sits a safe distance below the top so I imagine it will continue to overflow (spill) until the water gets below that point. I had to learn this when the city I used to live in proposed building a detention basin behind our house.

Beyond that it really depends on the specifics of this particular dam.

http://en.wikipedia.org/wiki/Schoharie_Reservoir

At peak the water was said to be about 8 feet over the top of the dam. By that I assumed they meant 8 feet over the top of the spillway. but perhaps not. In any case the emergency at the dam has now been cancelled however there's another dam at risk now.

URGENT - IMMEDIATE BROADCAST REQUESTED
FLOOD WATCH
NATIONAL WEATHER SERVICE ALBANY NY
1215 PM EDT MON AUG 29 2011


NEW YORK POWER AUTHORITY OFFICIALS HAVE DECLARED A TYPE B
SITUATION AT VISCHER FERRY DAM. A POTENTIALLY HAZARDOUS
SITUATION IS DEVELOPING AT VISCHER FERRY DAM. THERE IS THE
POTENTIAL FOR DAM FAILURE. NEW YORK POWER AUTHORITY OFFICIALS
ARE MONITORING THE DAM.

,...
NEW YORK CITY DEPARTMENT OF ENVIRONMENTAL PROTECTION OFFICIALS
HAVE DECLARED NORMAL CONDITIONS AT GILBOA DAM. AGAIN...GILBOA
DAM HAS BEEN DOWNGRADED FROM A TYPE B SITUATION TO NORMAL.

HOWEVER...THE TYPE B SITUATION AT THE BLENHEIM-GILBOA POWER
PROJECT DAM...DECLARED BY THE NEW YORK POWER AUTHORITY...
CONTINUES DUE TO POSSIBLE RAPID INFLOW.

[ncweatherwizard]

Isn't there a barrier island town in NC that's completely cut off too?

Large parts of Hatteras Island are cut off from the north due to overwash on the highway that runs down the island. This has happened many times before though, and is somewhat expected. The ferry terminal on the south end of the island, however, is open.

[Hogweed]

The Vischer Ferry Dam is also known as/associated with Lock 7 or Dam 3.

This picture taken today is captioned "Water in Mohawk River is pouring over Lock 7"
Photo from http://yfrog.com/h2ukxifj



Uploaded with ImageShack.us

[Hogweed]

Flood waters from Gilboa Dam over-topping heading down river.



Uploaded with ImageShack.us



Uploaded with ImageShack.us

[tropicana]

Tropical cyclone information statement corrected by the Canadian
Hurricane Centre of Environment Canada at 2:47 PM ADT Monday
29 August 2011.
---------------------------------------------------------------------
Tropical cyclone information statement for:
Atlantic provinces
Southern Quebec.

For post-tropical storm Irene.

The next intermediate statement will be issued at 6:00 PM ADT.

Post-tropical storm Irene exiting the St. Lawrence river
Valley and heading toward Labrador.

---------------------------------------------------------------------
==discussion==
1. Summary of basic information at 3.00 PM ADT.

Location: 51.0 north 65.5 west.

About 100 kilometres (80 miles) north-northeast of Sept-Îles, Quebec.

Maximum sustained winds: 95 km/h ( 55mph).

Present movement: northeast at 46 km/h ( 28mph).

Minimum central pressure: 987 MB.

2. Public weather impacts and warnings summary.

Rainfall warnings are still in effect for portions of Southern
Quebec. Wind warnings are still in effect for parts of the Northern
Gulf of St. Lawrence.

A. Wind.

Strong and gusty winds in the wake of post-tropical storm Irene's
continue to affect most of the Maritimes and Southeastern Quebec this
afternoon, however for the most part these winds are now well below
warning criteria except for the regions as noted above.

B. Rainfall.

Rain from post-tropical Irene is now confined almost exclusively to
the north and west of its track. Rain over the northern half of the
St. Lawrence River Valley will likely end later this afternoon as
Irene pulls away. Parts of Labrador are expected to receive up to 40
millimetres of rain through tonight.

C. Surge/waves.

There were some reports of high water levels and heavy surf during
the midday high tide over the parts of the Bay of Fundy today.
Heavy surf conditions continue to affect much of the Atlantic
coastline of Nova Scotia but these should gradually diminish later
today. Heavy surf and elevated water levels are also expected later
today and tonight in the Northern Gulf of St. Lawrence where wave
heights up to 5 meters are expected tonight.

3. Marine impacts and warnings summary.

Gale warnings are in effect for much of the northern Maritimes marine
district as well as the Gulf of St. Lawrence. Gale warnings are also
in effect for most Labrador and Northern Newfoundland marine areas
for later today, tonight and Tuesday. Wave heights up 5 meters are
expected in the Northeastern Gulf of St. Lawrence/Strait of Belle
Isle region tonight.

[CrazyC83]

Personal Forecast Disclaimer:
The posts in this forum are NOT official forecast and should not be used as such. They are just the opinion of the poster and may or may not be backed by sound meteorological data. They are NOT endorsed by any professional institution or storm2k.org. For official information, please refer to the NHC and NWS products.

This is my estimate for an UNOFFICIAL BT. Usually I don't make track changes but there are some at the beginning due to Recon finding the wrong center.

August 20
0600 - 14.1 / 53.1 - 1008mb - 30 kt - Tropical depression
1200 - 14.5 / 55.2 - 1007mb - 40 kt - Tropical storm
1800 - 15.2 / 57.1 - 1005mb - 45 kt

August 21
0000 - 16.0 / 59.1 - 1003mb - 45 kt
0600 - 16.6 / 60.6 - 1002mb - 45 kt
1200 - 17.1 / 62.5 - 1000mb - 50 kt
1800 - 17.5 / 63.9 - 997mb - 55 kt

August 22
0000 - 17.9 / 65.0 - 993mb - 65 kt - Hurricane
0530 - 18.2 / 65.9 - 988mb - 70 kt - Landfall, Puerto Rico
0600 - 18.2 / 66.0 - 988mb - 70 kt
1200 - 18.9 / 67.0 - 989mb - 70 kt
1800 - 19.3 / 68.0 - 987mb - 75 kt

August 23
0000 - 19.7 / 68.7 - 980mb - 85 kt
0600 - 20.1 / 69.7 - 978mb - 80 kt
1200 - 20.4 / 70.6 - 977mb - 75 kt
1800 - 20.7 / 71.2 - 975mb - 75 kt

August 24
0000 - 21.0 / 71.9 - 968mb - 85 kt
0600 - 21.3 / 72.5 - 963mb - 90 kt
1200 - 21.9 / 73.3 - 957mb - 95 kt
1800 - 22.7 / 74.3 - 954mb - 100 kt

August 25
0000 - 23.5 / 75.1 - 951mb - 100 kt
0600 - 24.1 / 75.9 - 950mb - 95 kt
1200 - 25.4 / 76.6 - 949mb - 90 kt
1800 - 26.5 / 77.2 - 949mb - 85 kt

August 26
0000 - 27.7 / 77.3 - 945mb - 90 kt
0600 - 28.8 / 77.3 - 942mb - 95 kt - Peak intensity (pressure)
1200 - 30.0 / 77.4 - 946mb - 90 kt
1800 - 31.1 / 77.5 - 949mb - 85 kt

August 27
0000 - 32.1 / 77.1 - 950mb - 85 kt
0600 - 33.4 / 76.6 - 952mb - 80 kt
1130 - 34.5 / 76.6 - 950mb - 85 kt - Landfall, North Carolina
1200 - 34.7 / 76.6 - 950mb - 85 kt
1800 - 35.5 / 76.6 - 949mb - 80 kt - Subtropical cyclone

August 28
0000 - 36.7 / 75.7 - 950mb - 75 kt
0600 - 38.1 / 75.0 - 956mb - 70 kt
0930 - 39.4 / 74.4 - 958mb - 65 kt - Landfall, New Jersey
1200 - 40.3 / 74.1 - 962mb - 60 kt - Subtropical storm
1300 - 40.7 / 74.0 - 964mb - 60 kt - Landfall, New York
1800 - 42.1 / 73.3 - 968mb - 50 kt

August 29
0000 - 44.2 / 72.1 - 973mb - 45 kt
0600 - 46.5 / 74.2 - 978mb - 45 kt - Extratropical
1200 - 48.6 / 67.9 - 979mb - 50 kt
1800 - 51.0 / 65.5 - 983mb - 50 kt

[cycloneye]

0530 - 18.2 / 65.9 - 988mb - 70 kt - Landfall, Puerto Rico

Crazy,I agree with you on that. Unoficial reports of hurricane gusts in interior PR were reported.And Irene was organizing while it was overland.

[hurricaneCW]

First official hurricane landfall in NJ since the 1903 hurricane.

[WeatherGuesser]

Didn't somebody say it wasn't officially a hurricane at the NJ landfall? I thought I read somewhere that it was downgraded just before. Maybe not.

[Ptarmigan]

Personal Forecast Disclaimer:
The posts in this forum are NOT official forecast and should not be used as such. They are just the opinion of the poster and may or may not be backed by sound meteorological data. They are NOT endorsed by any professional institution or storm2k.org. For official information, please refer to the NHC and NWS products.

This is my estimate for an UNOFFICIAL BT. Usually I don't make track changes but there are some at the beginning due to Recon finding the wrong center.

August 20
0600 - 14.1 / 53.1 - 1008mb - 30 kt - Tropical depression
1200 - 14.5 / 55.2 - 1007mb - 40 kt - Tropical storm
1800 - 15.2 / 57.1 - 1005mb - 45 kt

August 21
0000 - 16.0 / 59.1 - 1003mb - 45 kt
0600 - 16.6 / 60.6 - 1002mb - 45 kt
1200 - 17.1 / 62.5 - 1000mb - 50 kt
1800 - 17.5 / 63.9 - 997mb - 55 kt

August 22
0000 - 17.9 / 65.0 - 993mb - 65 kt - Hurricane
0530 - 18.2 / 65.9 - 988mb - 70 kt - Landfall, Puerto Rico
0600 - 18.2 / 66.0 - 988mb - 70 kt
1200 - 18.9 / 67.0 - 989mb - 70 kt
1800 - 19.3 / 68.0 - 987mb - 75 kt

August 23
0000 - 19.7 / 68.7 - 980mb - 85 kt
0600 - 20.1 / 69.7 - 978mb - 80 kt
1200 - 20.4 / 70.6 - 977mb - 75 kt
1800 - 20.7 / 71.2 - 975mb - 75 kt

August 24
0000 - 21.0 / 71.9 - 968mb - 85 kt
0600 - 21.3 / 72.5 - 963mb - 90 kt
1200 - 21.9 / 73.3 - 957mb - 95 kt
1800 - 22.7 / 74.3 - 954mb - 100 kt

August 25
0000 - 23.5 / 75.1 - 951mb - 100 kt
0600 - 24.1 / 75.9 - 950mb - 95 kt
1200 - 25.4 / 76.6 - 949mb - 90 kt
1800 - 26.5 / 77.2 - 949mb - 85 kt

August 26
0000 - 27.7 / 77.3 - 945mb - 90 kt
0600 - 28.8 / 77.3 - 942mb - 95 kt - Peak intensity (pressure)
1200 - 30.0 / 77.4 - 946mb - 90 kt
1800 - 31.1 / 77.5 - 949mb - 85 kt

August 27
0000 - 32.1 / 77.1 - 950mb - 85 kt
0600 - 33.4 / 76.6 - 952mb - 80 kt
1130 - 34.5 / 76.6 - 950mb - 85 kt - Landfall, North Carolina
1200 - 34.7 / 76.6 - 950mb - 85 kt
1800 - 35.5 / 76.6 - 949mb - 80 kt - Subtropical cyclone

August 28
0000 - 36.7 / 75.7 - 950mb - 75 kt
0600 - 38.1 / 75.0 - 956mb - 70 kt
0930 - 39.4 / 74.4 - 958mb - 65 kt - Landfall, New Jersey
1200 - 40.3 / 74.1 - 962mb - 60 kt - Subtropical storm
1300 - 40.7 / 74.0 - 964mb - 60 kt - Landfall, New York
1800 - 42.1 / 73.3 - 968mb - 50 kt

August 29
0000 - 44.2 / 72.1 - 973mb - 45 kt
0600 - 46.5 / 74.2 - 978mb - 45 kt - Extratropical
1200 - 48.6 / 67.9 - 979mb - 50 kt
1800 - 51.0 / 65.5 - 983mb - 50 kt

Interesting that Irene's peak was at Category 2.

[HurrMark]

Didn't somebody say it wasn't officially a hurricane at the NJ landfall? I thought I read somewhere that it was downgraded just before. Maybe not.

As of now, it is official (and the first time since Bob that a hurricane made landfall in the Northeast). However, I would not be surprised to see it downgraded in the best track after the season is through, since there were no winds even close to hurricane intensity by that point.