Remnants Of Hurricane Zeta (Cat 2) Could Bring Snow To Nova Scotia

000

WTNT43 KNHC 291452

TCDAT3

Tropical Storm Zeta Discussion Number  20

NWS National Hurricane Center Miami FL       AL282020

1100 AM EDT Thu Oct 29 2020

Zeta continues to move rapidly over land, and its maximum sustained 

winds are estimated to be near 45 kt over the southeastern 

quadrant, with thew highest winds occuring over elevated locations. 

The wind gust factor continues to be higher than usual due to the 

interaction with land.

Zeta continues to accelerate northeastward and is now moving near 

055/42 kt.  The cyclone should accelerate some more ahead of a 

strong 500-mb trough moving into the eastern United States over the 

next day or so.  The official track forecast is in reasonable 

agreement with the global model predictions.  

The pressure pattern of Zeta is becoming distorted, and starting to 

take on an extratropical appearance as the cyclone begins to 

interact with a nearby frontal system.  By this afternoon, the 

global models indicate that the system will become a frontal low and 

thus extratropical.  Some short-term baroclinic strengthening is 

possible over the western Atlantic, but the guidance suggests that 

the system will become absorbed into the frontal zone in 36 hours 

or so.

KEY MESSAGES:

1.  Strong, damaging wind gusts, which could cause tree damage and

power outages, will continue to spread eastward across portions of 

the Carolinas and southeastern Virginia through this afternoon due 

to Zeta's fast forward speed. 

2.  Through today, heavy rainfall is expected near and in advance of 

Zeta from portions of the Ohio Valley, into the central Appalachians 

and Mid-Atlantic.  This rainfall may lead to flash, urban, small 

stream, and isolated minor river flooding. 

FORECAST POSITIONS AND MAX WINDS

INIT  29/1500Z 36.5N  81.5W   45 KT  50 MPH...INLAND

 12H  30/0000Z 39.4N  73.1W   50 KT  60 MPH...POST-TROP/EXTRATROP

 24H  30/1200Z 42.0N  60.0W   50 KT  60 MPH...POST-TROP/EXTRATROP

 36H  31/0000Z...DISSIPATED

$$

Forecaster Pasch