ATL: BERTHA - Post-Tropical - Discussion

[cycloneye]

They passed center with the wind shift.

[Gustywind]

Guadeloupe and Martinica and the Northern Leewards are under an yellow alert for a risk of strong showers and thunderstorms, strong sea but no warnings for all these islands concerning a risk of TS for the moment. I will keep your informed if anything happens here.

http://www.meteofrance.gp/vigilance-antilles-guyane

[cycloneye]

SUMMARY OF 800 AM AST...1200 UTC...INFORMATION
----------------------------------------------
LOCATION...13.6N 57.9W
ABOUT 110 MI...175 KM ENE OF BARBADOS
ABOUT 220 MI...355 KM ESE OF MARTINIQUE
MAXIMUM SUSTAINED WINDS...45 MPH...75 KM/H
PRESENT MOVEMENT...WNW OR 290 DEGREES AT 20 MPH...31 KM/H
MINIMUM CENTRAL PRESSURE...1008 MB...29.77 INCHES

[NDG]

I would like them to sample the area to the NNE of where they found the windshift and lowest pressure.
I placed the X where approximately where they found the wind shift.

[tropicwatch]

Anybody want to take over obs on the recon thread? Need a break

[NDG]

Anybody want to take over obs on the recon thread? Need a break

I'll try, but I have to take care of some personal stuff in between. Maybe I'll put a timer.

[tropicwatch]

Anybody want to take over obs on the recon thread? Need a break

I'll try, but I have to take care of some personal stuff in between. Maybe I'll put a timer.

Thanks!

[cycloneye]

NDG,I have to go too so can you post the graphics?

[Equilibrium]

those high winds were during a descent... may not be valid

Morning visible is inconclusive as to whether or not there is a center. Recon is doing a low level invest to confirm that the center still exists

Confident there is a centre by just viewing infrared red loop find it hard to believe you still question it.


The posts in this forum are NOT official forecast and should not be used as such. They are just the opinion of the poster and may or may not be backed by sound meteorological data. They are NOT endorsed by any professional institution or storm2k.org. For official information, please refer to the NHC and NWS product

[Alyono]

those high winds were during a descent... may not be valid

Morning visible is inconclusive as to whether or not there is a center. Recon is doing a low level invest to confirm that the center still exists

Confident there is a centre by just viewing infrared red loop find it hard to believe you still question it.


The posts in this forum are NOT official forecast and should not be used as such. They are just the opinion of the poster and may or may not be backed by sound meteorological data. They are NOT endorsed by any professional institution or storm2k.org. For official information, please refer to the NHC and NWS product

You cannot use an IR loop to easily see low clouds. Need visible or shortwave IR. The visible and the aircraft dtaa is not that impressive. Still a center, but very very weak

[Gustywind]

Slight but increasing numbers for TS Bertha...

01/1145 UTC 13.6N 57.5W T2.0/2.0 BERTHA
01/0545 UTC 12.9N 56.1W T1.5/1.5 BERTHA

[Dean4Storms]

I don't know what some of you are seeing. I'm seeing a better, tighter LL circulation and convection very near the center. Looks like a deepening phase to me!

[Equilibrium]

those high winds were during a descent... may not be valid

Morning visible is inconclusive as to whether or not there is a center. Recon is doing a low level invest to confirm that the center still exists

Confident there is a centre by just viewing infrared red loop find it hard to believe you still question it.


The posts in this forum are NOT official forecast and should not be used as such. They are just the opinion of the poster and may or may not be backed by sound meteorological data. They are NOT endorsed by any professional institution or storm2k.org. For official information, please refer to the NHC and NWS product

You cannot use an IR loop to easily see low clouds. Need visible or shortwave IR. The visible and the aircraft dtaa is not that impressive. Still a center, but very very weak

it was a shortwave Infrared Imagery loop i have been viewing.

[NDG]

I think that what we were tracking all night long clearly seen on shortwave IR satellite has been the mid level circulation, right to the south of the hot tower. Maybe where the LLC reform later today.

[Airboy]

From the data from the recon, the west component in the wind looks a bit weak in southeast field of the center

[NDG]

Recon is finding plenty of TS force winds in the eastern quadrant of the storm.

[artist]

It's a shame Uverse doesn't have the Weather Channel. But Bertha sure looks terrible.

They do, hd 1225 or standard 225

[Sanibel]

The better SST's and location must have helped.

[NDG]

The better SST's and location must have helped.

UL diverging winds are also helping, though the shear is not helping her get better organized too fast.

BTW, 55 knot flight level winds just reported by the recon NE of the LLC around some of that heavy squalls.

[Alyono]

Winds may be as high as 45 kts now