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BULLETIN
Hurricane Otis Advisory Number  13
NWS National Hurricane Center Miami FL       EP182023
400 AM CDT Wed Oct 25 2023
 
...DAMAGING HURRICANE-FORCE WINDS SPREADING INLAND OVER SOUTHERN
MEXICO...
...HEAVY RAINFALL AND FLASH FLOODING OCCURRING OVER PORTIONS OF
SOUTHERN MEXICO...
 
 
SUMMARY OF 400 AM CDT...0900 UTC...INFORMATION
----------------------------------------------
LOCATION...17.2N 100.1W
ABOUT 25 MI...40 KM NNW OF ACAPULCO MEXICO
MAXIMUM SUSTAINED WINDS...130 MPH...215 KM/H
PRESENT MOVEMENT...NNW OR 345 DEGREES AT 10 MPH...17 KM/H
MINIMUM CENTRAL PRESSURE...948 MB...28.00 INCHES
 
 
WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY:
 
The government of Mexico has discontinued the Tropical Storm
Warning and Hurricane Watch east of Punta Maldonado.
 
SUMMARY OF WATCHES AND WARNINGS IN EFFECT:
 
A Hurricane Warning is in effect for...
* Punta Maldonado westward to Zihuatanejo
 
A Hurricane Warning means that hurricane 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 400 AM CDT (0900 UTC), the center of Hurricane Otis was located
near latitude 17.2 North, longitude 100.1 West. Otis is moving
toward the north-northwest near 10 mph (17 km/h), and this general
motion is expected through early tonight.  On the forecast track, 
the center of Otis will move farther inland over southern Mexico 
through tonight.
 
Maximum sustained winds have decreased to near 130 mph (215 km/h)
with higher gusts.  Otis is a category 4 hurricane on the
Saffir-Simpson Hurricane Wind Scale.  Rapid weakening is expected
as Otis moves inland over the higher terrain of Mexico.  Otis will
likely dissipate over southern Mexico tonight.
 
Hurricane-force winds extend outward up to 30 miles (45 km) from the
center and tropical-storm-force winds extend outward up to 70 miles
(110 km).
 
The estimated minimum central pressure is 948 mb (28.00 inches).

 
HAZARDS AFFECTING LAND
----------------------
Key messages for Otis can be found in the Tropical Cyclone
Discussion under AWIPS header MIATCDEP3 and WMO header WTPZ43 KNHC
and on the web at hurricanes.gov/text/MIATCDEP3.shtml
 
WIND:  Damaging hurricane-force winds will spread inland over
southern Mexico this morning with extremely destructive
winds near the core during the next few hours.  Wind speeds atop
and on the windward sides of hills and mountains are often up to
30 percent stronger than the near-surface winds indicated in this
advisory, and in some elevated locations could be even greater.
 
STORM SURGE:  Life-threatening storm surge will continue along the
coast of southern Mexico this morning in areas of onshore winds
within the hurricane warning. Near the coast, the surge will be
accompanied by large and dangerous waves.
 
RAINFALL:  Otis is expected to produce rainfall totals of 8 to 16
inches with maximum amounts of 20 inches through Thursday across
Guerrero and the western coastal sections of Oaxaca.  This rainfall
will produce flash and urban flooding, along with mudslides in areas
of higher terrain.
 
SURF: Swells generated by Otis will affect portions of the southern
coast of Mexico 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 office.
 
 
NEXT ADVISORY
-------------
Next intermediate advisory at 700 AM CDT.
Next complete advisory at 1000 AM CDT.
 
$$
Forecaster Brown
 
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