Tropical Cyclone Eta
Last Updated: Friday, November 13, 2020 @ 9:30:01 AM

Storm Origin: Atlantic
Wind Speed: 46 mph
Pressure: 1004 mb
Movement: 21 mph ENE
Latitude: 33.3 N
Longitude: 76.8 W
Tropical Storm Wind Extent: 115 miles
TROPICAL CYCLONE ETA ADVISORY / FORECAST
ADVISORY from National Hurricane Center:
...ETA BECOMES AN EXTRATROPICAL LOW...
 
 
SUMMARY OF 400 AM EST...0900 UTC...INFORMATION
----------------------------------------------
LOCATION...33.3N 76.8W
ABOUT 85 MI...135 KM SE OF WILMINGTON NORTH CAROLINA
MAXIMUM SUSTAINED WINDS...45 MPH...75 KM/H
PRESENT MOVEMENT...ENE OR 60 DEGREES AT 21 MPH...33 KM/H
MINIMUM CENTRAL PRESSURE...1004 MB...29.65 INCHES
 
 
WATCHES AND WARNINGS
--------------------
There are no coastal watches or warnings in effect.
 
 
DISCUSSION AND OUTLOOK
----------------------
At 400 AM EST (0900 UTC), the center of Post-Tropical Cyclone Eta
was located near latitude 33.3 North, longitude 76.8 West. The
post-tropical cyclone is moving toward the east-northeast near 21
mph (33 km/h) and this motion is expected to continue with an 
increase in forward speed through Saturday.  On the forecast track, 
Eta is expected to gradually pull away from the southeast U.S. 
coast today.
 
Maximum sustained winds are near 45 mph (75 km/h) with higher gusts.
Eta could intensify a little as an non-tropical cyclone during the
next day or so before it becomes absorbed by a larger non-tropical
cyclone on Saturday or Saturday night.
 
Tropical-storm-force winds extend outward up to 115 miles (185 km)
from the center.
 
The estimated minimum central pressure is 1004 mb (29.65 inches).
 
 
HAZARDS AFFECTING LAND
----------------------
SURF:  Swells generated by Eta will affect portions of the
southeastern United States coast today. These swells
are likely to cause life-threatening surf and rip current
conditions.  Please consult products from your local
weather office.
 
 
NEXT ADVISORY
-------------
This is the last public advisory issued by the National Hurricane
Center on this system.  Additional information on this system can be 
found in High Seas Forecasts issued by the National Weather 
Service, under AWIPS header NFDHSFAT1, WMO header FZNT01 KWBC, and 
online at ocean.weather.gov/shtml/NFDHSFAT1.php


DISCUSSION from National Hurricane Center:
Expires:No;;760127
WTNT44 KNHC 130834
TCDAT4
 
Post-Tropical Cyclone Eta Discussion Number  52
NWS National Hurricane Center Miami FL       AL292020
400 AM EST Fri Nov 13 2020

While the cyclone is still generating a cluster of strong 
convection to the northeast of the center, satellite imagery, 
surface observations and scatterometer data indicate that Eta has 
merged with a baroclinic zone and become an extratropical cyclone 
off the southeastern coast of the United States.  The scatterometer 
data showed vectors of 40-50 kt along a front or convergence zone 
northeast of the center, but these vectors were in the strong 
convective region and their reliability is uncertain.  This, the 
initial intensity is held at a possibly conservative 40 kt.  Eta is 
forecast to strengthen as a baroclinic low until the system is 
absorbed by another low pressure area in about 48 h.

The initial motion is 060/18.  The post-tropical cyclone cyclone 
should continue this general motion with an increase in forward 
speed until it is absorbed.
 
This is the last advisory issued by the National Hurricane Center 
on Eta.   Additional information on this system can be found in 
High Seas Forecasts issued by the National Weather Service, under 
AWIPS header NFDHSFAT1, WMO header FZNT01 KWBC, and online at 
ocean.weather.gov/shtml/NFDHSFAT1.php
 
FORECAST POSITIONS AND MAX WINDS
 
INIT  13/0900Z 33.3N  76.8W   40 KT  45 MPH...POST-TROP/EXTRATROP
 12H  13/1800Z 35.0N  73.1W   40 KT  45 MPH...POST-TROP/EXTRATROP
 24H  14/0600Z 37.9N  66.1W   45 KT  50 MPH...POST-TROP/EXTRATROP
 36H  14/1800Z 41.1N  57.8W   45 KT  50 MPH...POST-TROP/EXTRATROP
 48H  15/0600Z...ABSORBED BY AN EXTRATROPICAL LOW