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BULLETIN
TROPICAL STORM OTTO INTERMEDIATE ADVISORY NUMBER   6A
NWS NATIONAL HURRICANE CENTER MIAMI FL       AL162016
700 AM EST TUE NOV 22 2016

...AIR FORCE RESERVE AIRCRAFT FINDS OTTO NEAR HURRICANE STRENGTH...


SUMMARY OF 700 AM EST...1200 UTC...INFORMATION
----------------------------------------------
LOCATION...10.5N 79.1W
ABOUT 225 MI...360 KM SE OF SAN ANDRES ISLAND
ABOUT 335 MI...545 KM ESE OF BLUEFIELDS NICARAGUA
MAXIMUM SUSTAINED WINDS...70 MPH...110 KM/H
PRESENT MOVEMENT...STATIONARY
MINIMUM CENTRAL PRESSURE...986 MB...29.12 INCHES


WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY:

None.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT:

A Tropical Storm Watch is in effect for...
* San Andres

A Tropical Storm Watch means that tropical storm conditions are
possible within the watch area, generally within 48 hours.

Interests in Nicaragua, Costa Rica, and Providencia Island should
monitor the progress of Otto.

For storm information specific to your area, please monitor
products issued by your national meteorological service.


DISCUSSION AND 48-HOUR OUTLOOK
------------------------------
At 700 AM EST (1200 UTC), the center of Tropical Storm Otto was
located near latitude 10.5 North, longitude 79.1 West.  Otto has
been moving erratically, and little net motion is expected today.  A
slow west-northwestward motion is expected tonight and Wednesday,
followed by a turn toward the west Wednesday night.

Maximum sustained winds have increased to near 70 mph (110 km/h)
with higher gusts.  Some strengthening is forecast during the next
48 hours, and Otto is forecast to become a hurricane by Wednesday.

Otto is a small tropical storm.  Tropical-storm-force winds extend
outward up to 35 miles (55 km) from the center.

The minimum central pressure reported by an Air Force Reserve
Hurricane Hunter aircraft is 986 mb (29.12 inches).


HAZARDS AFFECTING LAND
----------------------
RAINFALL:  Outer rain bands from Otto are expected to produce
rainfall accumulations of 3 to 6 inches over San Andres and
Providencia islands, and portions of central and western Panama and
southeastern Costa Rica through Wednesday, with isolated totals
upwards of 10 to 15 inches across northeastern Costa Rica and the
higher terrain of Nicaragua.  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.

WIND:  Tropical storm conditions are possible within the watch area
by late Wednesday or Wednesday night.


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

$$
Forecaster Blake/Pasch

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