ATL: DORIAN - Post-Tropical - Discussion

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Re: ATL: DORIAN - Post-Tropical - Discussion

#9161 Postby Jr0d » Mon Sep 09, 2019 8:54 am

Is the Dorian model discussion thread archived? If so a link would be much appreciated.
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Re: ATL: DORIAN - Post-Tropical - Discussion

#9162 Postby toad strangler » Mon Sep 09, 2019 8:56 am

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Re: ATL: DORIAN - Post-Tropical - Discussion

#9163 Postby supercane4867 » Mon Sep 09, 2019 10:50 am

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Re: ATL: DORIAN - Post-Tropical - Discussion

#9164 Postby Vdogg » Mon Sep 09, 2019 12:43 pm

Haven’t seen this posted yet. The magnitude of this devastation is unbelievable. To see concrete pulverized in such a fashion. :eek:



Link: https://youtu.be/qOM4jKc9zeg
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Re: ATL: DORIAN - Post-Tropical - Discussion

#9165 Postby storm_in_a_teacup » Mon Sep 09, 2019 1:27 pm

Vdogg wrote:Haven’t seen this posted yet. The magnitude of this devastation is unbelievable. To see concrete pulverized in such a fashion. :eek:

https://youtu.be/qOM4jKc9zeg


Oh god that is horrifying...if even reinforced concrete is destroyed, does that mean if a category 5 stalls out over our cities, all the buildings are going down?
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Re: ATL: DORIAN - Post-Tropical - Discussion

#9166 Postby somethingfunny » Mon Sep 09, 2019 1:47 pm

storm_in_a_teacup wrote:
Vdogg wrote:Haven’t seen this posted yet. The magnitude of this devastation is unbelievable. To see concrete pulverized in such a fashion. :eek:

https://youtu.be/qOM4jKc9zeg


Oh god that is horrifying...if even reinforced concrete is destroyed, does that mean if a category 5 stalls out over our cities, all the buildings are going down?


With the exception of Key West and surrounding towns of the Keys, any Category 5 storm stalling out over an American city would weaken rapidly due to land interaction and dry air entrainment. The Bahamas (also the lesser Antilles) unfortunately are the perfect location where a category 5 storm can impact land without losing strength for days because they're just small flat islands surrounded by warm water.

That video really is beyond words. Seeing the reinforced concrete structures destroyed like that... Its miraculous that there were any survivors at all.
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Re: ATL: DORIAN - Post-Tropical - Discussion

#9167 Postby Orson » Mon Sep 09, 2019 2:35 pm

somethingfunny wrote:
storm_in_a_teacup wrote:
Vdogg wrote:Haven’t seen this posted yet. The magnitude of this devastation is unbelievable. To see concrete pulverized in such a fashion. :eek:

https://youtu.be/qOM4jKc9zeg


Oh god that is horrifying...if even reinforced concrete is destroyed, does that mean if a category 5 stalls out over our cities, all the buildings are going down?


With the exception of Key West and surrounding towns of the Keys, any Category 5 storm stalling out over an American city would weaken rapidly due to land interaction and dry air entrainment. The Bahamas (also the lesser Antilles) unfortunately are the perfect location where a category 5 storm can impact land without losing strength for days because they're just small flat islands surrounded by warm water.

That video really is beyond words. Seeing the reinforced concrete structures destroyed like that... Its miraculous that there were any survivors at all.


That was the first thing that jumped my mind. Really makes you think twice about Providence, divine or otherwise.
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Re: ATL: DORIAN - Post-Tropical - Discussion

#9168 Postby Hybridstorm_November2001 » Mon Sep 09, 2019 5:12 pm

I'll be putting this up on my blog for prosperity later today. Maine and the Maritimes event summary information -

* 100 km.h is roughly 60 mph and 120 km/h is roughly 75 mph

*100 mm is roughly 4 inches and 150 is roughly 6 inches

Storm Summary Number 15 for Heavy Rain and Wind Gusts Associated
with Dorian
NWS Weather Prediction Center College Park MD
1100 PM EDT Sat Sep 07 2019

...Rain concluding over eastern Maine as Dorian tracks northeast
through the Canadian Maritimes...

All watches and warnings in the U.S. associated with Dorian have
been discontinued.

For a detailed graphical depiction of the latest watches, warnings
and advisories, please see http://www.weather.gov

At 1000 PM EDT...National Weather Service radar and surface
observations show periods of rain are ending in eastern Maine.
Below are preliminary rainfall and wind observations associated
with Dorian. For more information regarding the location and
forecast track of Dorian, please refer to http://www.nhc.noaa.gov

...Selected preliminary Storm Total Rainfall in inches from 700 AM
EDT Sun Sep 01 through 1000 PM EDT Sat Sep 07...

...MAINE...
EASTPORT NEPP SITE 3.37
CHARLOTTE 8 NE 2.57
JONESBORO 1 SW 2.50
ROQUE BLUFFS 2.20
BAR HARBOR 1.46
ACADIA NATIONAL PARK 1.39
TRENTON 1.22
ELLSWORTH 1.12

...Selected preliminary Peak Wind gusts in miles per hour earlier
in the event.....

...MAINE...
ROQUE BLUFFS 24 SSE 49
EASTPORT 46

.....For the latest rainfall forecast associated with Dorian, please
refer to http://www.wpc.ncep.noaa.gov

This will be the last Storm Summary issued by the Weather
Prediction Center for this event. Please refer to your local
National Weather service office for additional information.

Mullinax/Tate

WEATHER SUMMARY
FOR NEW BRUNSWICK
ISSUED BY ENVIRONMENT CANADA
AT 10:41 A.M. ADT SUNDAY 8 SEPTEMBER 2019.

DISCUSSION.

HURRICANE DORIAN BEGAN APPROACHING NEW BRUNSWICK ON SATURDAY MORNING
FROM THE SOUTHWEST, TRACKING JUST SOUTH OF SOUTHWESTERN SHORE OF
NOVA SCOTIA BY SATURDAY AFTERNOON. DORIAN MADE THE TRANSITION TO AN
INTENSE POST-TROPICAL SYSTEM JUST BEFORE MAKING LANDFALL OVER THE
CHEBUCTO PENINSULA JUST SOUTH OF HALIFAX AROUND 7PM SATURDAY
EVENING. DORIAN THEN QUICKLY TRACKED OVER NORTHERN NOVA SCOTIA THEN
JUST EAST OF PRINCE EDWARD ISLAND AND CURRENTLY LIES OVER
NORTHEASTERN GULF OF ST. LAWRENCE AS OF ISSUE TIME OF THIS BULLETIN
AND WILL CONTINUE TO TRACK NORTHEAST THROUGHOUT THE DAY.

DORIAN BROUGHT DESTRUCTIVE WINDS TO PARTS OF SOUTHERN AND EASTERN
NEW BRUNSWICK, FLOODING RAINS TO MUCH OF THE PROVINCE AND STORM
SURGE TO PARTS OF THE NORTHUMBERLAND STRAIT.

THE FOLLOWING IS A PRELIMINARY SUMMARY OF WEATHER EVENT INFORMATION
RECEIVED BY ENVIRONMENT CANADA AS OF 10AM ADT SUNDAY.

1. SUMMARY OF RAINFALL IN MILLIMETRES:

MONCTON: 121
ST. PAUL: 120
MECHANIC SETTLEMENT: 117
MIRAMICHI: 115
ST. IGNACE: 110
BERWICK: 98
DORCHESTER: 97
BIG TRACADIE: 96
DOAKTOWN: 92
SUSSEX: 86
SAINT JOHN: 82
NORTON: 84
RED PINES: 76
FREDERICTON AIRPORT: 75
BATHURST: 62
GAGETOWN: 56
CHARLO: 41

2. SUMMARY OF PEAK WINDS REPORTED IN KILOMETRES PER HOUR:

MISCOU ISLAND: 106
MONCTON: 100
SAINT JOHN: 102
BOUCTOUCHE: 81
BAS CARAQUET: 78
SUSSEX: 76
MECHANIC SETTLEMENT: 74
BATHURST: 70
GRAND MANAN: 65
FREDERICTON: 46

PLEASE NOTE THAT THIS SUMMARY MAY CONTAIN PRELIMINARY OR UNOFFICIAL
INFORMATION AND DOES NOT CONSTITUTE A COMPLETE OR FINAL REPORT.

END/ASPC

Weather summary
for Nova Scotia
issued by Environment Canada
at 10:35 a.m. ADT Sunday 8 September 2019.

Discussion.

Hurricane Dorian began approaching Nova Scotia on Saturday morning
from the southwest, tracking just south of Southwestern Shore by
Saturday afternoon. Dorian made the transition to an intense
post-tropical system just before making landfall over the Chebucto
Peninsula, just south of Halifax around 7pm Saturday evening. Dorian
then quickly tracked through northern Nova Scotia then just east of
Prince Edward Island and toward the eastern Gulf of St. Lawrence.

Dorian brought destructive winds to much of Nova Scotia, flooding
rains, and storm surge to parts of the Atlantic coast. At its peak,
over 402,000 customers were without power. There were many reports
of damage due to uprooted trees and flying debris. Storm surge also
brought extensive flooding to some coastal areas.

The following is a preliminary summary of weather event information
received by Environment Canada as of 11AM ADT.

1. Summary of rainfall in millimetres:

Oxford: 138
Lower Sackville: 138
Hammonds Plain: 133
Baccaro Point: 131.2
Belmont: 129
Kentville: 110.4
Bedford: 96
Scots Bay: 94
New Ross: 93
Halifax(Downtown): 90
Sandy Cove: 84
Greenwood: 82
Middleton: 79
Lake Major: 78
Dartmouth: 77
Parrsboro: 76.2
Nappan: 74
Halifax International Airport: 70.8
Kejimkujik: 64
Yarmouth: 62
Upper Stewiacke: 38.7
North Mountain: 38
Parsborough: 36.6
Truro: 33
Sydney Airport: 31.2
Collegeville: 30.5

2. Summary of winds in kilometres per hour:

Beaver Island: 145
Sluce Point: 143
Osborne Head: 141
Grand Etang: 137
Yarmouth: 130
Halifax Kootenay: 120
Hart Island: 120
Baccaro Point: 119
Caribou Point: 119
North Mountain: 107
Halifax Dockyard: 107
Brier Island: 106
Sydney Airport: 104
Lunenburg: 102
Shearwater Jetty: 102
Eskasoni: 102
Halifax International Airport: 100
McNabs Island: 100
Tracadie: 95
Greenwood: 93
Ingonish Beach: 91
Nappan: 87
Upper Stewiacke: 87
Port Hawkesbury: 85
Parrsboro: 83
Halifax Windsor Park: 82
Debert: 80
Western Head: 80
Cheticamp: 78

Please note that this summary may contain preliminary or unofficial
information and does not constitute a complete or final report.

End/ASPC

Weather summary
for Prince Edward Island
issued by Environment Canada
at 10:36 a.m. ADT Sunday 8 September 2019.

Discussion.

Hurricane Dorian began approaching Prince Edward Island on Saturday
morning from the southwest, tracking just south of the southwestern
shore of Nova Scotia by Saturday afternoon. Dorian made the
transition to an intense post-tropical system just before making
landfall over the Chebucto Peninsula, just south of Halifax around
7pm Saturday evening. Dorian then quickly tracked through northern
Nova Scotia then just east of Prince Edward Island then toward the
eastern Gulf of St. Lawrence.

Dorian brought destructive winds, flooding rains, and storm surge to
parts of the Northumberland Strait.

The following is a preliminary summary of weather event information
received by Environment Canada as of 11AM ADT Sunday.

1. Summary of rainfall in millimetres:

Bonshaw: 103
Bordon: 91
Summerside: 90
Spring Valley 86
Charlottetown Airport: 48
Stratford: 37

2. Summary of winds in kilometres per hour:

North Cape: 122
East Point: 120
Summerside: 115
Charlottetown Airport: 102
St. Peters: 98
Stanhope: 93
Maple Plains: 85

Please note that this summary may contain preliminary or unofficial
information and does not constitute a complete or final report.

End/ASPC
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Re: ATL: DORIAN - Post-Tropical - Discussion

#9169 Postby ncforecaster89 » Mon Sep 09, 2019 8:06 pm

storm_in_a_teacup wrote:
Vdogg wrote:Haven’t seen this posted yet. The magnitude of this devastation is unbelievable. To see concrete pulverized in such a fashion. :eek:

https://youtu.be/qOM4jKc9zeg


Oh god that is horrifying...if even reinforced concrete is destroyed, does that mean if a category 5 stalls out over our cities, all the buildings are going down?


The videographer doesn't accurately explain the damage as that was not a reinforced concrete structure, but rather cinderblock. The devastation is bad enough that such exaggerations are unnecessary. That said, the immense power of a large storm surge is capable of destroying such a structure. They definitely endured that, sadly, and Cat 5 winds!
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Re: ATL: DORIAN - Post-Tropical - Discussion

#9170 Postby 1900hurricane » Mon Sep 09, 2019 9:38 pm

Hybridstorm_November2001 wrote:I'll be putting this up on my blog for prosperity later today. Maine and the Maritimes event summary information -

...

I'm assuming the peak winds are recorded as gusts, correct?
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Re: ATL: DORIAN - Post-Tropical - Discussion

#9171 Postby Hybridstorm_November2001 » Mon Sep 09, 2019 11:02 pm

1900hurricane wrote:
Hybridstorm_November2001 wrote:I'll be putting this up on my blog for prosperity later today. Maine and the Maritimes event summary information -

...

I'm assuming the peak winds are recorded as gusts, correct?


correct
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Re: ATL: DORIAN - Post-Tropical - Discussion

#9172 Postby al78 » Tue Sep 10, 2019 8:22 am

The destruction is incredible, how do towns and cities recover from that? It is like the north Atlantic version of typhoon Haiyan.

One thing I notice on many of these hurricane aftermath videos, is that no matter how strong the storm, there seems to always be at least one or two buildings that look far less damaged than the rest. There is at least one house in that video with the roof still on, and it looks at first glance to be habitable (although they only show it from one angle). It would be worth looking at the least damaged structures to try and find out what it was about the construction that made them more resiliant to the extreme wind.
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Re: ATL: DORIAN - Post-Tropical - Discussion

#9173 Postby storm_in_a_teacup » Tue Sep 10, 2019 1:28 pm

ncforecaster89 wrote:
storm_in_a_teacup wrote:
Vdogg wrote:Haven’t seen this posted yet. The magnitude of this devastation is unbelievable. To see concrete pulverized in such a fashion. :eek:

https://youtu.be/qOM4jKc9zeg


Oh god that is horrifying...if even reinforced concrete is destroyed, does that mean if a category 5 stalls out over our cities, all the buildings are going down?


The videographer doesn't accurately explain the damage as that was not a reinforced concrete structure, but rather cinderblock. The devastation is bad enough that such exaggerations are unnecessary. That said, the immense power of a large storm surge is capable of destroying such a structure. They definitely endured that, sadly, and Cat 5 winds!


Quick question: do you mean a strong storm surge will destroy reinforced concrete?
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Re: ATL: DORIAN - Post-Tropical - Discussion

#9174 Postby Hybridstorm_November2001 » Tue Sep 10, 2019 1:41 pm

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Re: ATL: DORIAN - Post-Tropical - Discussion

#9175 Postby TYNI » Tue Sep 10, 2019 7:07 pm

I am not sure how common this is in large storms, but it seems insane to me... 100-foot wave recorded off the coast of Newfoundland during Dorian.


https://www.theglobeandmail.com/canada/article-100-foot-wave-recorded-off-the-coast-of-newfoundland-during-dorian-2/
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Re: ATL: DORIAN - Post-Tropical - Discussion

#9176 Postby ncforecaster89 » Tue Sep 10, 2019 8:10 pm

storm_in_a_teacup wrote:
ncforecaster89 wrote:
storm_in_a_teacup wrote:
Oh god that is horrifying...if even reinforced concrete is destroyed, does that mean if a category 5 stalls out over our cities, all the buildings are going down?


The videographer doesn't accurately explain the damage as that was not a reinforced concrete structure, but rather cinderblock. The devastation is bad enough that such exaggerations are unnecessary. That said, the immense power of a large storm surge is capable of destroying such a structure. They definitely endured that, sadly, and Cat 5 winds!


Quick question: do you mean a strong storm surge will destroy reinforced concrete?


Yes. The tremendous force exerted by a powerful storm surge is capable of knocking down and/or undermining a concrete structure. As bad as Cat 5 winds are, it's the storm surge that typically causes the most destruction. That appears to be the case yet again, here, as it was the case for the most dramatic devastation caused by hurricane Michael at Mexico Beach...as well as Camille in 1969.

Edit: That's not to say that the Cat 5 winds in the aforementioned hurricanes didn't also produce incredible damage by their intense winds, as well.
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Re: ATL: DORIAN - Post-Tropical - Discussion

#9177 Postby DESTRUCTION5 » Thu Sep 12, 2019 2:54 pm

icyclones 30 min video of Dorian is the hands down most epic horrific footage you will ever see in regards to mother nature's absolute worst.
Last edited by tolakram on Fri Sep 13, 2019 5:42 am, edited 1 time in total.
Reason: removed bad link
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Re: ATL: DORIAN - Post-Tropical - Discussion

#9178 Postby DESTRUCTION5 » Thu Sep 12, 2019 3:00 pm

Kazmit wrote:
DESTRUCTION5 wrote:icyclones 30 min video of Dorian is the hands down most epic horrific footage you will ever see in regards to mother nature's absolute worst.

https://youtu.be/7Rg0y7NT1gU

Um, wrong link. :lol:




Link: https://youtu.be/DV-PLJq4HD4

Fail much?
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Re: ATL: DORIAN - Post-Tropical - Discussion

#9179 Postby Chris90 » Thu Sep 12, 2019 11:41 pm

Jim Edds also posted a quick video of Dorian's eyewall winds, much shorter than Josh's video, only 25 seconds, but still worth a look for sure.
https://youtu.be/X4OjqKuTvD4
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Re: ATL: DORIAN - Post-Tropical - Discussion

#9180 Postby supercane4867 » Thu Sep 19, 2019 3:24 pm

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