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Tropical Storm Iota Advisory Number 19
NWS National Hurricane Center Miami FL AL312020
900 PM CST Tue Nov 17 2020
...IOTA WEAKENING RAPIDLY OVER SOUTHERN HONDURAS...
...THREAT OF CATASTROPHIC FLASH FLOODING AND MUDSLIDES CONTINUES
ACROSS PORTIONS OF CENTRAL AMERICA...
SUMMARY OF 900 PM CST...0300 UTC...INFORMATION
ABOUT 25 MI...40 KM SSW OF TEGUCIGALPA HONDURAS
MAXIMUM SUSTAINED WINDS...40 MPH...65 KM/H
PRESENT MOVEMENT...W OR 270 DEGREES AT 12 MPH...19 KM/H
MINIMUM CENTRAL PRESSURE...1000 MB...29.53 INCHES
WATCHES AND WARNINGS
CHANGES WITH THIS ADVISORY:
The Government of Honduras has discontinued the Tropical Storm
Warning from Punta Castilla eastward to the Honduras/Nicaragua
SUMMARY OF WATCHES AND WARNINGS IN EFFECT:
A Tropical Storm Warning is in effect for...
* The coast of Honduras west of Punta Castilla to the
* Bay Islands
A Tropical Storm Warning means that tropical storm conditions are
expected somewhere within the warning area.
For storm information specific to your area, please monitor
products issued by your national meteorological service.
DISCUSSION AND OUTLOOK
At 900 PM CST (0300 UTC), the center of Tropical Storm Iota was
located near latitude 13.7 North, longitude 87.3 West. Iota is
moving toward the west near 12 mph (19 km/h), and a westward to
west-southwestward motion is expected tonight and Wednesday. On
the forecast track, the center of Iota should move across portions
of southern Honduras and El Salvador before the system dissipates
Maximum sustained winds have decreased to near 40 mph (65 km/h)
with higher gusts. Additional rapid weakening is forecast, and
Iota should weaken to a tropical depression tonight and degenerate
into a remnant low pressure area on Wednesday.
Tropical-storm-force winds extend outward up to 185 miles (295 km)
from the center, mainly along the coast in the Tropical Storm
Warning area. La Ceiba, Honduras, reported a wind gust of 58 mph
(93 km/h) during the past few hours.
The estimated minimum central pressure is 1000 mb (29.53 inches).
HAZARDS AFFECTING LAND
Key messages for Iota can be found in the Tropical Cyclone
Discussion under AWIPS header MIATCDAT1, WMO header WTNT41 KNHC
and on the web at www.hurricanes.gov/text/MIATCDAT1.shtml.
WIND: Tropical-storm conditions will continue for a few more hours
near the center of Iota and in the Tropical Storm Warning area well
to the north of the center.
RAINFALL: Iota is expected to produce the following additional
rainfall accumulations through Thursday:
El Salvador, Panama, western Honduras, northern Nicaragua, southern
Belize : 4 to 8 inches (100 to 200 mm), with isolated maximum
totals of 12 inches (300 mm).
This rainfall will lead to significant, life-threatening flash
flooding and river flooding, along with mudslides in areas of higher
Southern Nicaragua and Costa Rica: 3 to 5 inches (75 to 125 mm),
with isolated maximum totals of 10 inches (250 mm).
SURF: Swells generated by Iota will affect much of the coast of
Central America and the Yucatan Peninsula during the next day or so.
These swells are likely to cause life-threatening surf and rip
current conditions. Please consult products from your local weather
Next intermediate advisory at 1200 AM CST.
Next complete advisory at 300 AM CST.