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Tropical Storm Agatha Advisory Number 4
NWS National Hurricane Center Miami FL EP012022
400 PM CDT Sat May 28 2022
...AGATHA GRADUALLY STRENGTHENING OFF SOUTHERN MEXICO...
...HURRICANE AND TROPICAL STORM WARNINGS ISSUED...
SUMMARY OF 400 PM CDT...2100 UTC...INFORMATION
ABOUT 170 MI...270 KM SW OF PUERTO ANGEL MEXICO
MAXIMUM SUSTAINED WINDS...60 MPH...95 KM/H
PRESENT MOVEMENT...NNW OR 345 DEGREES AT 5 MPH...7 KM/H
MINIMUM CENTRAL PRESSURE...998 MB...29.47 INCHES
WATCHES AND WARNINGS
CHANGES WITH THIS ADVISORY:
The government of Mexico has issued a Hurricane Warning from Salina
Cruz to Lagunas de Chacahua, a Tropical Storm Warning and Hurricane
Watch from Salina Cruz to Barra De Tonala, and a Tropical Storm
Warning from Barra De Tonala to Boca de Pijijiapan and from
Lagunas De Chacahua to Punta Maldonado
SUMMARY OF WATCHES AND WARNINGS IN EFFECT:
A Hurricane Warning is in effect for...
* Salina Cruz to Lagunas de Chacahua
A Hurricane Watch is in effect for...
* Salina Cruz eastward to Barra De Tonala
A Tropical Storm Warning is in effect for...
* Salina Cruz eastward to Boca de Pijijiapan
* Lagunas de Chacahua westward to Punta Maldonado
A Hurricane Warning means that hurricane conditions are expected
somewhere within the warning area. A warning is typically issued
36 hours before the anticipated first occurrence of
tropical-storm-force winds, conditions that make outside
preparations difficult or dangerous. Preparations to protect life
and property should be rushed to completion.
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
A Tropical Storm Warning means that tropical storm conditions are
expected somewhere within the warning area within 36 hours.
Interests elsewhere in southern Mexico should closely monitor the
progress of Agatha.
For storm information specific to your area, please monitor
products issued by your national meteorological service.
DISCUSSION AND OUTLOOK
At 400 PM CDT (2100 UTC), the center of Tropical Storm Agatha was
located near latitude 13.8 North, longitude 98.1 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
Maximum sustained winds have increased to near 60 mph (95 km/h)
with higher gusts. Rapid intensification is forecast, and Agatha
could become a hurricane by early Sunday.
Tropical-storm-force winds extend outward up to 70 miles (110 km)
from the center.
The estimated minimum central pressure is 998 mb (29.47 inches).
HAZARDS AFFECTING LAND
WIND: Hurricane conditions are expected in the hurricane warning
area and possible in the watch area on Monday, with tropical storm
conditions possible Sunday night. Tropical storm conditions are
expected in the tropical storm warning areas on Monday.
STORM SURGE: Storm surge is expected to produce significant coastal
flooding in areas of onshore winds near and to the east of where the
center of Agatha makes landfall. Near the coast, the surge will 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 tonight. These swells are likely
to cause life-threatening surf and rip current conditions. Please
consult products from your local weather office.
Next intermediate advisory at 700 PM CDT.
Next complete advisory at 1000 PM CDT.