Major Hurricane Fiona

[Chinook]

another storm cross section ( compare to my post from before)

 

[Tatamy]

Tropical Storm force wind gusts have now reached Cape Breton Island and eastern Nova Scotia.  The highest wind gust I have seen so far is at Gabarus with a gust to 49 mph and a pressure of 29.12 inHg (Davis Network) Barometric pressure values close to this are common in that region at this time.

[WxWatcher007]

1 minute ago, Tatamy said:

Tropical Storm force wind gusts have now reached Cape Breton Island and eastern Nova Scotia.  The highest wind gust I have seen so far is at Gabarus with a gust to 49 mph and a pressure of 29.12 inHg (Davis Network) Barometric pressure values close to this are common in that region at this time.

Henry Island just to my west is gusting to 50kts

I'm about half that currently but it's deteriorating here at a faster rate now. 

[Nibor]

Is there a public weather station on Sable Island?

[SnowLover22]

17 minutes ago, Sandstorm94 said:

Fiona Post Tropical

Sent from my SM-S102DL using Tapatalk
 

Don’t think it is. A post tropical cat 3 equivalent is unheard of. Definitely still a warm core present. 

[dan11295]

With the dropping pressure, Assuming the center goes over land (0Z output on tropical tidbits have corrected west some) in NS Fiona will quite possibly set the record for lowest pressure recorded in Canada. I believe someone mentioned was 940 mb  from a winter storm.

[Rjay]

5 minutes ago, WxWatcher007 said:

Henry Island just to my west is gusting to 50kts

I'm about half that currently but it's deteriorating here at a faster rate now. 

Have you seen numbers on the expected storm surge there? I haven't found anything, even front their TV broadcasts.  And this is all the NHC says:

 

STORM SURGE: A dangerous storm surge is expected to produce coastal
flooding within the warning areas in Atlantic Canada in areas of
onshore winds. Near the coast, the surge will be accompanied by
large and destructive waves

[Tatamy]

7 minutes ago, WxWatcher007 said:

Henry Island just to my west is gusting to 50kts

I'm about half that currently but it's deteriorating here at a faster rate now. 

Yup - 46 mph with a recent gust to 61 mph.  Station is in a very exposed location as well.

[Nibor]

Gusts to 75 mph Beaver Island.

[WxWatcher007]

3 minutes ago, Rjay said:

Have you seen numbers on the expected storm surge there? I haven't found anything, even front their TV broadcasts.  And this is all the NHC says:

 

STORM SURGE: A dangerous storm surge is expected to produce coastal
flooding within the warning areas in Atlantic Canada in areas of
onshore winds. Near the coast, the surge will be accompanied by
large and destructive waves

It has been very tough. This is the official warning for eastern Cape Breton

Quote

9:54 PM ADT Friday 23 September 2022
Storm surge warning in effect for:

• Sydney Metro and Cape Breton County

Higher than normal water levels with very large waves are expected.

Locations: South to southeast facing shorelines of eastern Mainland Nova Scotia
and Cape Breton, as well as southwestern Newfoundland.

Maximum water levels: near high astronomical tide.

Maximum wave heights: 8 to 12 metres, breaking upon approach to shore.

Time span: Early Saturday morning until early afternoon.

High tide: mid to late morning.

Remarks: Very large long period waves will approach the Cabot Strait and gradually diminish west along the Atlantic Coast. Areas west of Guysborough County are expected to remain below warning levels.

Coastal erosion is likely in vulnerable areas. Surge and waves can cause impacts well inland.

Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to [email protected] or tweet reports using #NSStorm.

 

[WxWatcher007]

2 minutes ago, Tatamy said:

Yup - 46 mph with a recent gust to 61 mph.  Station is in a very exposed location as well.

Yeah, the station here is approaching 30kts so quite a difference. 

[Rjay]

All I was seeing were talks about the waves as well.   Ok then.  

[Tatamy]

11 minutes ago, Nibor said:

Is there a public weather station on Sable Island?

Environment Canada has a station there.  Last report from an hour ago had winds of 37 knots with gusts to 47 knots.

[Intensewind002]

2 minutes ago, Rjay said:

All I was seeing were talks about the waves as well.   Ok then.  

I found this on the CHC site for Cape Breton:

Strong category-1 hurricane force winds of 100 gusting to 140 km/h at exposed locations except 140 gusting to 160 km/h at the coast with surge of 1.8 to 2.4 m and dangerous waves from 11 to 15 m from Hurricane Fiona are expected.

[madwx]

https://www.aviationweather.gov/metar/data?ids=CWSA&format=decoded&date=&hours=6

 

Sable Island.  Note that there haven't been any new METARs in an hour

[Prismshine Productions]

Don’t think it is. A post tropical cat 3 equivalent is unheard of. Definitely still a warm core present. 

Best track has it EX, TT has it as Remants

Sent from my SM-S102DL using Tapatalk

[SnowLover22]

Just now, Sandstorm94 said:

Best track has it EX, TT has it as Remants

Sent from my SM-S102DL using Tapatalk
 

Does best track have the current strength and pressure m?

[dan11295]

I don't think I have ever head of a storm declared post tropical with cat 3 winds.

[jm1220]

2 minutes ago, dan11295 said:

I don't think I have ever head of a storm declared post tropical with cat 3 winds.

But I mean-it is post tropical. It doesn’t have a symmetric warm core CDO anymore for sure, and you can see for the last few hours the cold air stratocumulus wrapping into the storm. There’s also the classic baroclinic leaf growing out NW of the storm. Takes nothing away from its destruction and I think Environment Canada will treat “post tropical hurricanes” differently after this storm. Thank goodness it’s not headed directly into Halifax or just west. 

[dan11295]

I don't disagree, of course they usually don't have a 932 mb pressure when going post-tropical either. Pressure wise this has to be one of the strongest storms ever recorded in this vicinity.

[Chinook]

Sable Island Nova Scotia has wind sensors, pressure sensors not working

Quote

METAR: CWSA 240121Z AUTO /////KT 3/4SM -RA BR BKN011 OVC018 20/20 RMK WIND MISG PRES MISG DENSITY ALT MISG

 

[dan11295]

926.5 mb Extrap. 1.5 mb lower than last pass. Previous VDM was 932 mb so probably ~930 mb now.

[Amped]

Has a clear westerly component to the motion the past few hours, so it might be able to clip the NE part of the main island.

[Tatamy]

Recon is in the storm now and strongest surface winds have been measured ~ 65  - 70 kts.  Strongest flight level winds have been measured at over 100 kts.  Recon just flew to the south of Sable Island.

[Prismshine Productions]

Does best track have the current strength and pressure m?

Here

Sent from my SM-S102DL using Tapatalk

[Chinook]

Almost all stations in Nova Scotia are showing wind gusts over 30 knots

 

[Tatamy]

NWS Caribou has issued a high wind warning for eastern Maine for the overnight hours through 8AM tomorrow for winds expected to gust up to 55 mph.

[jm1220]

Where those “cells” are popping up to the right of the center will likely have the strongest winds. 

[Tatamy]

Recon has found the strongest winds to be well to the south and east of the center.  Areas well to the west of the center have not yet been sampled on the current mission.

[WxSynopsisDavid]

13 minutes ago, Tatamy said:

Recon is in the storm now and strongest surface winds have been measured ~ 65  - 70 kts.  Strongest flight level winds have been measured at over 100 kts.  Recon just flew to the south of Sable Island.

Recon not yet sampled the area where highest surface winds would be