ATL: TEN - Post-Tropical - Discussion

[NDG]

Perhaps the strong northerly shear is preventing it from moving NE immediately?

The shear is giving the extra-tropical system its life. Now according to the models the shear will dissipate giving the low a chance to transition to a tropical low.

Right now is not extra-tropical, this is purely tropical.

[psyclone]

there is still some residual troughing extending back to central florida with some cyclonic turning still evident on radar in the tampa bay area.

[LarryWx]

This still appears to be a rather broad surface low since lowest pressures stretch from near buoy 41008 off of GA down to St. Augustine and then inland into FL. Pressures are fairly steady right now in most of these areas with 41008 actually up a smidgeon over the last hour or so while St. Augustine has dropped some. The lowest pressures in the general region per the buoys are near 1009 mb.

[seahawkjd]

Weatherbell just put out a free update on the both storms.

https://www.weatherbell.com/#premium

[Mouton]

1012mb in fernandina on mine at 1830. Dropping slowly. On coast 10-15 approx gusts to 20 or so by feel.

[NDG]

Fernandina Beach and Mayport Naval Station are both reporting the lowest pressure, 1008 mb, lower than the offshore buoys off of GA & S.C.

[northjaxpro]

I am just inland near Oceanway area of Jax 1009.6.mb current pressure reading at my home. Getting rain bands coming in as well.

[NDG]

Last zoomed in satellite vis loop before sunset, broad low pressure just offshore of FL-GA state line.

[LarryWx]

It has been interesting watching the rather tight windshift between the steady NE to N winds at St. Augustine and the W to SW winds at Daytona and Canaveral for the last few hours at least:

http://kamala.cod.edu/offs/KTBW/1708272 ... 2.TBW.html

[artist]

Check out Tampa's long range here and tell me what you see, anyone. I know the pressure there is 29.81
https://radar.weather.gov/radar_lite.ph ... Z&loop=yes

[artist]

And southwest of there the pressure is 29.78
With a nw wind

http://forecast.weather.gov/MapClick.ph ... n=-82.5781

[Kazmit]

I thought 92L was a goner when I last checked. I've been paying so much attention to Harvey I didn't even notice that Irma was forming!

[Nimbus]

Nothing in the models about shifting energy to the west coast but the floater sure looks odd.

http://www.ssd.noaa.gov/PS/TROP/floater ... -long.html

[LarryWx]

And southwest of there the pressure is 29.78
With a nw wind

http://forecast.weather.gov/MapClick.ph ... n=-82.5781

I think there is an elongated area of low pressure, about 50 miles wise, that stretches from just SW of Tampa to St. Aug. to ~75 miles E of Brunswick, GA.

[cycloneye]

BULLETIN
Potential Tropical Cyclone Ten Intermediate Advisory Number 1A
NWS National Hurricane Center Miami FL AL102017
800 PM EDT Sun Aug 27 2017

...DISTURBANCE NEARLY STATIONARY OFF THE SOUTHEAST U.S. COAST...


SUMMARY OF 800 PM EDT...0000 UTC...INFORMATION
----------------------------------------------
LOCATION...30.9N 80.3W
ABOUT 135 MI...220 KM SSW OF CHARLESTON SOUTH CAROLINA
ABOUT 270 MI...435 KM SSW OF WILMINGTON NORTH CAROLINA
MAXIMUM SUSTAINED WINDS...35 MPH...55 KM/H
PRESENT MOVEMENT...STATIONARY
MINIMUM CENTRAL PRESSURE...1007 MB...29.74 INCHES

[psyclone]

weak rotation has been evident over west central florida for about 3 days now. there's been a good deal of heavy rain from Lee up to Manatee counties.

[artist]

Thank you all that answered. Thought I might be imagining things. It has been south of there until today., from what I thought I was seeing.

[northjaxpro]

10L has been nearly stationary for the past 6 hours now. Actually, there had been a drift south of west over that time.

3 mb pressure drop of the Low Pressure center according to NHC since the 5:00 pm PTC advisory.

[LarryWx]

Mayport's SLP fell .04"/1.3 mb the last hour while St. Simons Island's rose .01"/0.3 mb.

[LarryWx]

10L has been nearly stationary for the past 6 hours now. Actually, there had been a drift south of west over that time.

3 mb pressure drop of the Low Pressure center according to NHC since the 5:00 pm PTC advisory.

Jax,
I see the S of W drift but isn't the estimated lowest SLP the same as it was 3 hours ago at 1007 mb?