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Tropical Storm Agatha Intermediate Advisory Number 3A
NWS National Hurricane Center Miami FL EP012022
100 PM CDT Sat May 28 2022
...AGATHA GRADUALLY STRENGTHENING OFF SOUTHERN MEXICO...
...EXPECTED TO BECOME A HURRICANE AS IT APPROACHES THE
SUMMARY OF 100 PM CDT...1800 UTC...INFORMATION
ABOUT 180 MI...295 KM SSW OF PUERTO ANGEL MEXICO
MAXIMUM SUSTAINED WINDS...50 MPH...85 KM/H
PRESENT MOVEMENT...NNW OR 345 DEGREES AT 5 MPH...7 KM/H
MINIMUM CENTRAL PRESSURE...1000 MB...29.53 INCHES
WATCHES AND WARNINGS
CHANGES WITH THIS ADVISORY:
SUMMARY OF WATCHES AND WARNINGS IN EFFECT:
A Hurricane Watch is in effect for...
* The southern coast of Mexico from Salina Cruz to Punta Maldonado
A Hurricane Watch means that hurricane conditions are possible
within the watch area. A watch is typically issued 48 hours
before the anticipated first occurrence of tropical-storm-force
winds, conditions that make outside preparations difficult or
Interests elsewhere in southern Mexico should closely monitor the
progress of Agatha. Additional watches and warnings will likely be
required for portions of this area later today.
For storm information specific to your area, please monitor
products issued by your national meteorological service.
DISCUSSION AND OUTLOOK
At 100 PM CDT (1800 UTC), the center of Tropical Storm Agatha was
located near latitude 13.5 North, longitude 98.0 West. Agatha is
moving toward the north-northwest near 5 mph (7 km/h). A turn toward
the northeast is forecast to occur late tonight or Sunday. On the
forecast track, the center of Agatha will approach the southern
coast of Mexico on Sunday and make landfall there on Monday.
Satellite data indicate that the maximum sustained winds have
increased to near 50 mph (85 km/h) with higher gusts. Additional
steady to rapid strengthening is forecast, and Agatha is expected
to become a hurricane on Sunday.
Tropical-storm-force winds extend outward up to 70 miles (110 km)
from the center.
The estimated minimum central pressure is 1000 mb (29.53 inches).
HAZARDS AFFECTING LAND
WIND: Hurricane conditions are possible within the hurricane watch
area on Monday, with tropical storm conditions possible late
Sunday or early Monday.
STORM SURGE: Storm surge could produce coastal flooding near and to
the east of where the center passes the coast in areas of onshore
winds. The surge may be accompanied by large and destructive waves.
RAINFALL: Agatha will produce heavy rains over portions of southern
Mexico by Sunday into Tuesday night. The following rainfall amounts
are currently expected:
Mexican state of Oaxaca: 10 to 16 inches, with isolated maximum
amounts of 20 inches possible. Life-threatening flash flooding and
mudslides may occur.
Mexican state of Chiapas: 5 to 10 inches, with isolated maximum
amounts of 15 inches possible. Life-threatening flash flooding and
mudslides may occur.
Eastern portions of the Mexican state of Guerrero: 2 to 6 inches,
with isolated maximum amounts of 10 inches possible.
Life-threatening flash flooding and mudslides may occur.
Mexican states of Vera Cruz and Tabasco: 2 to 4 inches, with
isolated maximum amounts of 6 inches possible.
SURF: Swells generated by Agatha are expected to begin affecting
the coast of southern Mexico early Sunday. These swells are likely
to cause life-threatening surf and rip current conditions. Please
consult products from your local weather office.
Next complete advisory at 400 PM CDT.