ATL: DORIAN - Post-Tropical - Discussion

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Re: ATL: DORIAN - Hurricane - Discussion

#9101 Postby CrazyC83 » Sat Sep 07, 2019 3:08 pm

gfsperpendicular wrote:So is Dorian completely extratropical by now? There's still a bit of convection lingering around the core and new convection keeps popping up briefly. Did he reach cat 2 again while tropical?


It seems like a hybrid right now, more extratropical than tropical but I'm not seeing any obvious frontal features. I'd personally consider it a hurricane right now, but it should be fully ET soon.
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Re: ATL: DORIAN - Hurricane - Discussion

#9102 Postby PavelGaborik10 » Sat Sep 07, 2019 3:08 pm

About 500+ KM away from the center of Dorian and am currently experiencing wind gusts of around 65 MPH already. Definitely overperforming thus far.
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Re: ATL: DORIAN - Hurricane - Discussion

#9103 Postby Hybridstorm_November2001 » Sat Sep 07, 2019 3:09 pm

gfsperpendicular wrote:So is Dorian completely extratropical by now? There's still a bit of convection lingering around the core and new convection keeps popping up briefly. Did he reach cat 2 again while tropical?


I'd say he is stubbornly hanging on to his subtropical (or hybrid) status.
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Re: ATL: DORIAN - Hurricane - Discussion

#9104 Postby cainjamin » Sat Sep 07, 2019 3:10 pm

My family is all in Yarmouth. Haven't heard from them in an hour or so - I'm assuming cell service is being pretty spotty. Yarmouth Airport reported a sustained wind of 52 MPH gusting to 80 MPH on the backside of Dorian. My parents and I have been through quite a few hurricanes recently (Arthur, Earl, Kyle, Noel) and they were telling me that so far the damage seems pretty comparable to Arthur. Lots of trees down, power out, transmission lines down everywhere. Stay safe everyone!
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Re: ATL: DORIAN - Hurricane - Discussion

#9105 Postby CrazyC83 » Sat Sep 07, 2019 3:10 pm

The Grand Etang station (on Cape Breton) may display wild numbers this evening. I wouldn't use that station as representative of the intensity though - it has a tendency to run high due to Les Suetes winds. Same with Wreckhouse in Newfoundland.
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Re: ATL: DORIAN - Hurricane - Discussion

#9106 Postby cainjamin » Sat Sep 07, 2019 3:14 pm

This will almost certainly be Halifax's worst storm since Juan, and may even surpass it as it's much, much bigger. The winds on the backside of the storm are looking even worse than the front so we might even see more damage after the eye passes.
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Re: ATL: DORIAN - Hurricane - Discussion

#9107 Postby Hybridstorm_November2001 » Sat Sep 07, 2019 3:17 pm

cainjamin wrote:My family is all in Yarmouth. Haven't heard from them in an hour or so - I'm assuming cell service is being pretty spotty. Yarmouth Airport reported a sustained wind of 52 MPH gusting to 80 MPH on the backside of Dorian. My parents and I have been through quite a few hurricanes recently (Arthur, Earl, Kyle, Noel) and they were telling me that so far the damage seems pretty comparable to Arthur. Lots of trees down, power out, transmission lines down everywhere. Stay safe everyone!


Here is the latest report from there -

Yarmouth Airport
Date:
5:00 PM ADT Saturday 7 September 2019
Condition:
Rain
Pressure:
98.9 kPa
Temperature:
10.4°C
Dew point:
10.2°C
Humidity:
99%
Wind:
NNW 72 gust (44 mph) 98 km/h (gusting to 60 mph)
Visibility:
2 km

So as you can see. The winds are rather strong right now.
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Re: ATL: DORIAN - Hurricane - Discussion

#9108 Postby cainjamin » Sat Sep 07, 2019 3:21 pm

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Re: ATL: DORIAN - Hurricane - Discussion

#9109 Postby CrazyC83 » Sat Sep 07, 2019 3:34 pm

I can't tell what the pressure is right now in the eye, but the lowest I am seeing is at a couple private stations near downtown Halifax recording 960 mb. The center is still about 50 miles from Halifax.
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Re: ATL: DORIAN - Hurricane - Discussion

#9110 Postby CrazyC83 » Sat Sep 07, 2019 3:48 pm

Officially extratropical now. However, NHC is maintaining advisories. I'd probably put 2100Z as the transition time in the best track...it seemed still tropical at 18Z but probably isn't now.
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Re: ATL: DORIAN - Hurricane - Discussion

#9111 Postby Astromanía » Sat Sep 07, 2019 4:16 pm

Can an extratropical cyclone still bring ACE?
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Re: ATL: DORIAN - Hurricane - Discussion

#9112 Postby sikkar » Sat Sep 07, 2019 4:20 pm

https://www.ndbc.noaa.gov/station_page. ... m=M&tz=EST

963.5 as of 5 pm ET.

Wind stopped reporting 3 hours ago.
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Re: ATL: DORIAN - Hurricane - Discussion

#9113 Postby CrazyC83 » Sat Sep 07, 2019 4:22 pm

Astromanía wrote:Can an extratropical cyclone still bring ACE?


No. ACE excludes extratropical stages.
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Re: ATL: DORIAN - Hurricane - Discussion

#9114 Postby Hurricaneman » Sat Sep 07, 2019 4:23 pm

Astromanía wrote:Can an extratropical cyclone still bring ACE?

Nope, has to be tropical
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Re: ATL: DORIAN - Post-Tropical - Discussion

#9115 Postby Astromanía » Sat Sep 07, 2019 4:32 pm

Oh ok. Well Dorian surely produced a great amount of ACE in its lifetime as a tropical cyclone, Someone know the exact valor? I think it must be one of the best ACE producer in recorded history
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Re: ATL: DORIAN - Post-Tropical - Discussion

#9116 Postby 1900hurricane » Sat Sep 07, 2019 4:38 pm

Astromanía wrote:Oh ok. Well Dorian surely produced a great amount of ACE in its lifetime as a tropical cyclone, Someone know the exact valor? I think it must be one of the best ACE producer in recorded history

47.6225 units. It is quite a large number (exceeding 40 units is somewhat rare), but both Matthew '16 (50.94) and Irma '17 (64.8925) had more in recent years. You'd have to go back to Ivan '04 (70.38) to get another as least as large though.
Last edited by 1900hurricane on Sat Sep 07, 2019 4:54 pm, edited 1 time in total.
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Re: ATL: DORIAN - Post-Tropical - Discussion

#9117 Postby Vdogg » Sat Sep 07, 2019 4:54 pm

I do believe this is the first official, undisputed, landfall Dorian has made after the Bahamas. The Carolina landfall is still being debated. What a beast of a storm.
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Re: ATL: DORIAN - Post-Tropical - Discussion

#9118 Postby Chris_in_Tampa » Sat Sep 07, 2019 4:59 pm

Radar from near Halifax, Nova Scotia from 5:40Z to 21:50Z Saturday. (1:40am AST to 5:50pm AST)

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

#9119 Postby Nimbus » Sat Sep 07, 2019 5:07 pm

Peak winds at Halifax Stanfield Int'l Airport were 137 KM/hr.
Expect flight delays tonight.
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Re: ATL: DORIAN - Post-Tropical - Discussion

#9120 Postby CrazyC83 » Sat Sep 07, 2019 5:51 pm

Nimbus wrote:Peak winds at Halifax Stanfield Int'l Airport were 137 KM/hr.
Expect flight delays tonight.


All flights are probably canceled, if the airport isn't closed.
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