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BULLETIN
TROPICAL STORM OTTO ADVISORY NUMBER   4
NWS NATIONAL HURRICANE CENTER MIAMI FL       AL162016
400 PM EST MON NOV 21 2016

...OTTO REMAINS NEARLY STATIONARY...


SUMMARY OF 400 PM EST...2100 UTC...INFORMATION
----------------------------------------------
LOCATION...11.3N 79.2W
ABOUT 190 MI...305 KM ESE OF SAN ANDRES ISLAND
ABOUT 315 MI...505 KM E OF BLUEFIELDS NICARAGUA
MAXIMUM SUSTAINED WINDS...50 MPH...85 KM/H
PRESENT MOVEMENT...STATIONARY
MINIMUM CENTRAL PRESSURE...1000 MB...29.53 INCHES


WATCHES AND WARNINGS
--------------------
There are no coastal watches or warnings in effect.

Interests in Nicaragua, Costa Rica, and the islands of San Andres
and Providencia should monitor the progress of Otto.  A Tropical
Storm Watch may be required for San Andres tonight or early
Tuesday.


DISCUSSION AND 48-HOUR OUTLOOK
------------------------------
At 400 PM EST (2100 UTC), the center of Tropical Storm Otto was
located near latitude 11.3 North, longitude 79.2 West.  Otto is
nearly stationary, and a generally westward drift is expected over
the next couple of days.

Maximum sustained winds are near 50 mph (85 km/h) with higher gusts.
Strengthening is forecast during the next 48 hours, and Otto could
become a hurricane in a couple of days.

Tropical-storm-force winds extend outward up to 35 miles (55 km)
from the center.

The estimated minimum central pressure is 1000 mb (29.53 inches).


HAZARDS AFFECTING LAND
----------------------
RAINFALL:  Outer rain bands from Otto are expected to produce
rainfall accumulations of 3 to 6 inches across portions of
central and western Panama and southeastern Costa Rica through
Wednesday, with isolated totals upwards of 10 to 15 inches across
the higher terrain.  These rains could result in life-threatening
flash floods and mud slides.  Additional heavy rainfall may move
into portions of Costa Rica Wednesday night into Thursday as the
system approaches the coast.


NEXT ADVISORY
-------------
Next complete advisory at 1000 PM EST.

$$
Forecaster Pasch

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