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Tropical Storm LIDIA (Text)


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Tropical Storm Lidia Advisory Number   9
NWS National Hurricane Center Miami FL       EP142017
300 PM MDT Thu Aug 31 2017

...CENTER OF LIDIA JUST SOUTHWEST OF CABO SAN LUCAS...
...TROPICAL STORM CONDITIONS OCCURRING ACROSS SOUTHERN BAJA
CALIFORNIA SUR...


SUMMARY OF 300 PM MDT...2100 UTC...INFORMATION
----------------------------------------------
LOCATION...22.7N 110.1W
ABOUT 20 MI...30 KM SW OF CABO SAN LUCAS MEXICO
MAXIMUM SUSTAINED WINDS...65 MPH...100 KM/H
PRESENT MOVEMENT...NNW OR 335 DEGREES AT 8 MPH...13 KM/H
MINIMUM CENTRAL PRESSURE...991 MB...29.27 INCHES


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

The Government of Mexico has extended the Tropical Storm Warning
for the Baja California peninsula to cover the area from Punta
Eugenia to Bahia San Juan Bautista.  The Government of Mexico has
issued a Tropical Storm Watch for the Baja California peninsula
north of Punta Eugenia to San Juan De Las Palomas, and north of
Bahia De Los Angeles to Isla San Luis.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT:

A Hurricane Watch is in effect for...
* Baja California Sur from Puerto Cortes to east of La Paz

A Tropical Storm Warning is in effect for...
* Baja California peninsula from Punta Eugenia to Bahia San Juan
Bautista
* Mainland Mexico from Bahia Tempehuaya to Bahia Kino

A Tropical Storm Watch is in effect for...
* Baja California peninsula north of Punta Eugenia to San Juan De
Las Palomas
* Baja California peninsula north of Bahia San Juan Bautista to
Isla San Luis
* Mainland Mexico north of Bahia Kino to Puerto Libertad

A Hurricane Watch means that hurricane conditions are possible
within the watch area.

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.

Interests elsewhere in western Mexico and the Baja California
peninsula should monitor the progress of Lidia.

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


DISCUSSION AND 48-HOUR OUTLOOK
------------------------------
At 300 PM MDT (2100 UTC), the center of Tropical Storm Lidia was
located near latitude 22.7 North, longitude 110.1 West. Lidia is
moving toward the north-northwest near 8 mph (13 km/h), and this
motion is expected to continue through Friday.  A turn toward the
northwest is expected Friday night.  On the forecast track,
the center of Lidia will pass near or over the southern tip of
the Baja California peninsula during the next few hours, and then
will move over the peninsula through Friday night.

Maximum sustained winds are near 65 mph (100 km/h) with higher
gusts.  Some strengthening is possible this evening.  Thereafter,
weakening is forecast as the center moves over the Baja California
peninsula.

Tropical-storm-force winds extend outward up to 185 miles (295 km)
mainly to the east of the center.  Surface observations indicate
that tropical-storm conditions are occurring over the southern end
of the Baja California peninsula.

The estimated minimum central pressure is 991 mb (29.27 inches).


HAZARDS AFFECTING LAND
----------------------
RAINFALL:  Lidia is expected to produce total rain accumulations of
8 to 12 inches across the Mexican states of Baja California Sur into
Baja California and western Jalisco, with isolated maximum totals of
20 inches. In the Mexican states of Sinaloa, Nayarit, Colima,
southern Michoacan, southern Sonora and central Jalisco, rainfall
amounts of 3 to 6 inches are expected.  These rains are expected to
cause life-threatening flash floods and mudslides.

WIND:  Tropical storm conditions are occurring over the southern
portion of Baja California Sur at this time.  These conditions
should spread northward across the warning area tonight through
Friday night.  Hurricane conditions are possible within the
hurricane watch area during the next several hours.  Tropical storm
conditions are expected in the warning area in mainland Mexico
starting in the next several hours.  Tropical storm conditions are
possible in the watch areas Friday night or Saturday.  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:  A dangerous storm surge is expected to produce coastal
flooding in areas of onshore winds on the southern portion of Baja
California Sur.  Near the coast, the surge will be accompanied by
large and destructive waves.

SURF:  Swells generated by Lidia are affecting portions of the coast
of southwestern and western Mexico and southern portions of Baja
California Sur, and could cause life-threatening surf and rip
current conditions. Please consult products from your local weather
office.


NEXT ADVISORY
-------------
Next intermediate advisory at 600 PM MDT.
Next complete advisory at 900 PM MDT.

$$
Forecaster Beven

NNNN

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Page last modified: Wednesday, 18-Oct-2017 12:10:13 UTC