ATL: BILL - Post-Tropical - Discussion

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Re: ATL: BILL - Tropical Storm - Discussion

#81 Postby Iceresistance » Tue Jun 15, 2021 6:07 am

Bill is now up to 50 mph, very fast moving East Coast system for sure

Moving: NE at 31 mph
Min pressure: 999 mb
Max sustained: 50 mph
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Re: ATL: BILL - Tropical Storm - Discussion

#82 Postby Aric Dunn » Tue Jun 15, 2021 6:20 am

appears to be a low to mid level eye.. some deeper convection building on the NE quad and sustained convection has been in the SW Quad..

Brief hurricane Bill coming right up lol

of course they likely would not upgrade without ASCAt showing at least 60kts +
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Re: ATL: BILL - Tropical Storm - Discussion

#83 Postby Aric Dunn » Tue Jun 15, 2021 6:24 am

from a few hours ago is the best we have so far..

does appear to be an eyewall then.. so looks like we have a hurricane or at least 70mph.

https://www.fnmoc.navy.mil/tcweb/dynamic/products/tc21/ATL/02L.BILL/ssmis/91rgb/20210615.0917.f18.91pct91h91v.02L.BILL.45kts.999mb.37.6N.68.5W.095pc.jpg
Last edited by tolakram on Tue Jun 15, 2021 6:46 am, edited 1 time in total.
Reason: jmg to url
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Re: ATL: BILL - Tropical Storm - Discussion

#84 Postby aspen » Tue Jun 15, 2021 6:47 am

Aric Dunn wrote:appears to be a low to mid level eye.. some deeper convection building on the NE quad and sustained convection has been in the SW Quad..

Brief hurricane Bill coming right up lol

of course they likely would not upgrade without ASCAt showing at least 60kts +

It looks shockingly good for a recently formed June mid-latitude system. It should be 50-55 kt at the absolute minimum for 11am. When is the next ASCAT pass?
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Re: ATL: BILL - Tropical Storm - Discussion

#85 Postby tolakram » Tue Jun 15, 2021 6:51 am

SLIDER
https://rammb-slider.cira.colostate.edu/?sat=goes-16&sec=conus&x=9145&y=3373.5&z=4&angle=0&im=12&ts=1&st=0&et=0&speed=130&motion=loop&maps%5Bborders%5D=white&lat=0&p%5B0%5D=band_02&opacity%5B0%5D=1&pause=0&slider=-1&hide_controls=0&mouse_draw=0&follow_feature=0&follow_hide=0&s=rammb-slider&draw_color=FFD700&draw_width=6

Image
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Re: ATL: BILL - Tropical Storm - Discussion

#86 Postby Aric Dunn » Tue Jun 15, 2021 6:51 am

aspen wrote:
Aric Dunn wrote:appears to be a low to mid level eye.. some deeper convection building on the NE quad and sustained convection has been in the SW Quad..

Brief hurricane Bill coming right up lol

of course they likely would not upgrade without ASCAt showing at least 60kts +

It looks shockingly good for a recently formed June mid-latitude system. It should be 50-55 kt at the absolute minimum for 11am. When is the next ASCAT pass?


knowing ASCAT it will miss the peak right now.... and by 11 it will be moving over very cold water pretty quick as it leaves the gulf stream.
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Re: ATL: BILL - Tropical Storm - Discussion

#87 Postby Aric Dunn » Tue Jun 15, 2021 6:53 am

Image
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Re: ATL: BILL - Tropical Storm - Discussion

#88 Postby Aric Dunn » Tue Jun 15, 2021 7:19 am

sort of New microwave image few hours before the peak.. definitely a low to mid level eye.

https://www.fnmoc.navy.mil/tcweb/dynami ... .075pc.jpg
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Re: ATL: BILL - Tropical Storm - Discussion

#89 Postby TallyTracker » Tue Jun 15, 2021 7:22 am

I don’t think it’s quite a hurricane based on appearance, but it is well organized and likely over 50 mph. Gorgeous storm!
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Re: ATL: BILL - Tropical Storm - Discussion

#90 Postby Aric Dunn » Tue Jun 15, 2021 7:23 am

this was right about as the peak intensity started... clearly an eyewall.

should be upgraded.

Image
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Re: ATL: BILL - Tropical Storm - Discussion

#91 Postby aspen » Tue Jun 15, 2021 8:10 am

Satellite imagery is delayed, model runs are delayed, best track is kinda late…
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Re: ATL: BILL - Tropical Storm - Discussion

#92 Postby cycloneye » Tue Jun 15, 2021 8:42 am

AL, 02, 2021061512, , BEST, 0, 397N, 639W, 45, 998, TS
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Re: ATL: BILL - Tropical Storm - Discussion

#93 Postby aspen » Tue Jun 15, 2021 8:44 am

cycloneye wrote:
AL, 02, 2021061512, , BEST, 0, 397N, 639W, 45, 998, TS

The NHC will probably go with 50 kt because the last best track was 40 kt, but the official intensity was 45 kt.
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Re: ATL: BILL - Tropical Storm - Discussion

#94 Postby cycloneye » Tue Jun 15, 2021 9:41 am

60 mph.

BULLETIN
Tropical Storm Bill Advisory Number 5
NWS National Hurricane Center Miami FL AL022021
1100 AM AST Tue Jun 15 2021

...BILL RACING NORTHEASTWARD...
...EXPECTED TO BECOME EXTRATROPICAL LATER TODAY...


SUMMARY OF 1100 AM AST...1500 UTC...INFORMATION
-----------------------------------------------
LOCATION...40.5N 62.0W
ABOUT 295 MI...475 KM SSE OF HALIFAX NOVA SCOTIA
ABOUT 420 MI...675 KM E OF NANTUCKET MASSACHUSETTS
MAXIMUM SUSTAINED WINDS...60 MPH...95 KM/H
PRESENT MOVEMENT...NE OR 55 DEGREES AT 38 MPH...61 KM/H
MINIMUM CENTRAL PRESSURE...998 MB...29.47 INCHES
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Re: ATL: BILL - Tropical Storm - Discussion

#95 Postby Sciencerocks » Tue Jun 15, 2021 10:34 am

Image
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Re: ATL: BILL - Tropical Storm - Discussion

#96 Postby CyclonicFury » Tue Jun 15, 2021 10:35 am

It was fascinating to watch Bill's evolution from a frontal low to a bonafide moderately strong tropical storm. An overperformer for so early in the season
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Re: ATL: BILL - Tropical Storm - Discussion

#97 Postby MarioProtVI » Tue Jun 15, 2021 10:48 am

Looks a lot worse now then even just an hour or two ago. LLC looks to have gotten destroyed based on latest frames
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Re: ATL: BILL - Tropical Storm - Discussion

#98 Postby ElectricStorm » Tue Jun 15, 2021 11:08 am

Yeah this definitely got a lot stronger than I anticipated
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Re: ATL: BILL - Tropical Storm - Discussion

#99 Postby AnnularCane » Tue Jun 15, 2021 11:30 am

For such a short-lived little guy, he had a good run.
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ATL: INVEST 92L - Discussion

#100 Postby HurricaneEnzo » Tue Jun 15, 2021 12:31 pm

Bill has a case of the zoomies moving at 38mph. Awesome little unexpected storm, those are always the best.
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