A recent SSMI/S overpass shows that the southern portion of the eyewall has eroded, possibly due to shear or dry air intrusion. The microwave imagery also suggests an outer convective band is forming, but it is not yet well enough defined to call it an outer eyewall. Satellite intensity estimates have continued to decrease, and the initial intensity is lowered to 110 kt as a blend of the various estimates.
Lorenzo will be passing over sea surface temperatures of 27-28C for the next 48-72 h. However, it will be in an environment of moderate vertical shear due to an upper-level trough not far to the west.
The intensity guidance responds to this by showing gradual weakening during this time, and the new intensity forecast follows the trend of the guidance. There is a possibility of fluctuations in intensity caused by eyewall replacement cycles superimposed on this weakening trend. After 72 h, the hurricane should encounter stronger mid-latitude westerlies, move over cooler sea surface temperatures, and eventually merge with the above-mentioned deep-layer trough. As this occurs, Lorenzo is forecast to undergo extratropical transition, with this being complete by 120 h.
Current indications from the global models are that Lorenzo will retain hurricane strength through the transition.
FORECAST POSITIONS AND MAX WINDS
96H 01/1800Z 35.5N 36.0W 90 KT 105 MPH
120H 02/1800Z 44.0N 26.5W 80 KT 90 MPH...POST-TROP/EXTRATROP
	
	
	
	Bom dia. Também em Irlanda estámos a seguir Lorenzo, visto que a ex-Ophelia foi semelhante há uns anos. Espero que Lorenzo não seja tão forte como prevista quando chegar nas Açores. Sería a tempestade mais forte na história no arquipelago se for verificar à máxima intensidade?

 http://www.eumetrain.org/data/4/491/mw2018_thursday_ramalho.pdf
	
 E já bem presente a ligeira rotação do ciclone para NE que os modelos começaram a mostrar no dia de hoje! 
	
	
	
	
	Com que então, voltaste ao fórum!
 