WTNT31 KNHC 222046
HURRICANE OTTO ADVISORY NUMBER 8
NWS NATIONAL HURRICANE CENTER MIAMI FL AL162016
400 PM EST TUE NOV 22 2016
...OTTO BECOMES THE SEVENTH HURRICANE OF THE 2016 SEASON...
SUMMARY OF 400 PM EST...2100 UTC...INFORMATION
ABOUT 305 MI...485 KM ESE OF BLUEFIELDS NICARAGUA
ABOUT 235 MI...375 KM E OF LIMON COSTA RICA
MAXIMUM SUSTAINED WINDS...75 MPH...120 KM/H
PRESENT MOVEMENT...W OR 275 DEGREES AT 2 MPH...4 KM/H
MINIMUM CENTRAL PRESSURE...984 MB...29.06 INCHES
WATCHES AND WARNINGS
CHANGES WITH THIS ADVISORY:
The government of Colombia has issued a Tropical Storm Warning for
San Andres Island.
The government of Nicaragua has issued a Tropical Storm Watch for
Nicaragua from Bluefields to Sandy Bay Sirpi.
SUMMARY OF WATCHES AND WARNINGS IN EFFECT:
A Hurricane Watch is in effect for...
* Costa Rica/Panama border to south of Bluefields
A Tropical Storm Warning is in effect for...
* Nargana to Colon
* San Andres
A Tropical Storm Watch is in effect for...
* West of Colon to the Costa Rica/Panama border
* Bluefields to Sandy Bay Sirpi
A Hurricane Watch means that hurricane conditions are possible
within the watch area, usually within 48 hours.
A Tropical Storm Warning means that tropical storm conditions are
expected somewhere within the warning area within 36 hours.
A Tropical Storm Watch means that tropical storm conditions are
possible within the watch area, generally within 48 hours.
A Hurricane Warning could be required for portions of the coast of
Nicaragua or Costa Rica later tonight or early Wednesday.
Interests elsewhere 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 400 PM EST (2100 UTC), the center of Hurricane Otto was located
near latitude 10.5 North, longitude 79.6 West. Otto is moving toward
the west near 2 mph (4 km/h). Otto should move a little faster
toward the west or west-northwest for the next couple of days. On
the forecast track, Otto is expected to approach the coasts of Costa
Rica and Nicaragua on Thursday.
Maximum sustained winds have increased to near 75 mph (120 km/h)
with higher gusts. Additional strengthening is expected for the
next couple of days until landfall.
Hurricane-force winds extend outward up to 10 miles (20 km) from the
center and tropical-storm-force winds extend outward up to 70 miles
The estimated minimum central pressure is 984 mb (29.06 inches).
HAZARDS AFFECTING LAND
RAINFALL: Outer rain bands from Otto are expected to produce
rainfall accumulations of 4 to 8 inches over San Andres and
Providencia islands, and the higher terrain of central and western
Panama and southern Costa Rica through Wednesday. Total rainfall
of 6 to 12 inches, with isolated amounts of 15 to 20 inches, can be
expected across northern Costa Rica and southern Nicaragua through
Thursday. These rains will likely result in life-threatening flash
floods and mud slides.
WIND: Tropical storm conditions are expected within the warning
area in Panama tonight and are possible in the tropical storm watch
area in Panama on Wednesday. Tropical storm conditions are
expected in San Andres by late Wednesday. Hurricane conditions are
possible within the hurricane watch area on Thursday. Tropical
storm conditions are possible within the tropical storm watch area
in Nicaragua on Thursday.
SURF: Swells generated by Otto are likely to cause life-threatening
surf and rip current conditions over the next several days along
the coasts of Panama, Costa Rica and Nicaragua. Please consult
products from your local weather office.
Next intermediate advisory at 700 PM EST.
Next complete advisory at 1000 PM EST.