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Tropical Depression Eta Intermediate Advisory Number 21A
NWS National Hurricane Center Miami FL AL292020
600 PM CST Thu Nov 05 2020
...ETA CAUSING HEAVY RAINS AND LIFE-THREATENING FLOODING OVER
PORTIONS OF CENTRAL AMERICA...
SUMMARY OF 600 PM CST...0000 UTC...INFORMATION
ABOUT 65 MI...100 KM WNW OF LA CEIBA HONDURAS
MAXIMUM SUSTAINED WINDS...35 MPH...55 KM/H
PRESENT MOVEMENT...NNW OR 340 DEGREES AT 8 MPH...13 KM/H
MINIMUM CENTRAL PRESSURE...1004 MB...29.65 INCHES
WATCHES AND WARNINGS
CHANGES WITH THIS ADVISORY:
SUMMARY OF WATCHES AND WARNINGS IN EFFECT:
A Tropical Storm Watch is in effect for...
* The Cayman Islands
A Tropical Storm Watch means that tropical storm conditions are
possible within the watch area, generally within 48 hours.
The governments of Nicaragua and Honduras continue to issue warnings
on heavy rain and flooding in those countries, and interests in
Nicaragua and Honduras should continue to monitor the progress of
this system. Interests in Belize and western Cuba should also
monitor the progress of this system, as Tropical Storm Watches may
be required for portions of western Cuba later tonight or on Friday.
For storm information specific to your area, please monitor
products issued by your national meteorological service.
DISCUSSION AND OUTLOOK
At 600 PM CST (0000 UTC), the center of Tropical Depression Eta was
located near latitude 16.0 North, longitude 87.8 West. The
depression is moving toward the north-northwest near 8 mph (13
km/h), and a turn toward the north is forecast during the next
several hours. A turn toward the northeast is expected on Friday,
with this motion continuing through Saturday night. On the forecast
track, the center of Eta will be over the western Caribbean Sea
through Friday, approach the Cayman Islands Saturday and Saturday
night, and be near Cuba on Sunday.
Maximum sustained winds remain near 35 mph (55 km/h) over water,
with higher gusts. Strengthening is forecast, and Eta is expected
to re-gain tropical storm strength on Friday.
The estimated minimum central pressure based on nearby surface
observations is 1004 mb (29.65 inches).
HAZARDS AFFECTING LAND
Key messages for Eta can be found in the Tropical Cyclone Discussion
under AWIPS header MIATCDAT4, WMO header WTNT44 KNHC, and on the
web at www.hurricanes.gov/text/MIATCDAT4.shtml.
RAINFALL: Eta is expected to produce the following rainfall
amounts through Tuesday morning:
Portions of Central America: An additional 5 to 10 inches (125 to
255 mm), isolated maximum storm totals of 40 inches (1000 mm) in
eastern Honduras and eastern Nicaragua.
Southeastern Mexico and Jamaica: An additional 2 to 5 inches (50 to
125 mm), isolated maximum storm totals of 15 inches (380 mm).
The Cayman Islands into portions of Cuba: 10 to 20 inches (255 to
510 mm), isolated maximum totals of 30 inches (760 mm).
This rainfall will lead to catastrophic, life-threatening flash
flooding and river flooding, along with landslides in areas of
higher terrain of Central America. Significant, life-threatening
flash flooding and river flooding is possible in the Cayman Islands
and Cuba. Flash flooding and river flooding is expected for Jamaica
and southeast Mexico.
WIND: Tropical storm conditions are possible in the Cayman Islands
Saturday or Saturday night.
SURF: Swells generated by Eta are expected to affect portions of
the coast of Central America and the Yucatan Peninsula of Mexico
during the next couple of days. These swells are likely to cause
life-threatening surf and rip current conditions. Please consult
products from your local weather office.
Next complete advisory at 900 PM CST.