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Tropical Storm Nora Intermediate Advisory Number 5A
NWS National Hurricane Center Miami FL EP142021
700 PM CDT Thu Aug 26 2021
...NORA STRENGTHENS A LITTLE...
...HURRICANE WATCHES AND TROPICAL STORM WARNINGS IN EFFECT ALONG
THE SOUTHWESTERN COAST OF MEXICO...
SUMMARY OF 700 PM CDT...0000 UTC...INFORMATION
ABOUT 290 MI...465 KM S OF LAZARO CARDENAS MEXICO
ABOUT 395 MI...635 KM SSE OF MANZANILLO MEXICO
MAXIMUM SUSTAINED WINDS...45 MPH...75 KM/H
PRESENT MOVEMENT...WNW OR 290 DEGREES AT 11 MPH...18 KM/H
MINIMUM CENTRAL PRESSURE...1001 MB...29.56 INCHES
WATCHES AND WARNINGS
CHANGES WITH THIS ADVISORY:
SUMMARY OF WATCHES AND WARNINGS IN EFFECT:
A Hurricane Watch is in effect for...
* Lazaro Cardenas to Cabo Corrientes Mexico
A Tropical Storm Warning is in effect for...
* Tecpan de Galeana to Manzanillo Mexico
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 along the west-central coast of Mexico and
southern portions of Baja California Sur should monitor the progress
of Nora. Additional watches and warnings will likely be required
for portions of these areas later tonight and on Friday.
For storm information specific to your area, please monitor
products issued by your national meteorological service.
DISCUSSION AND OUTLOOK
At 700 PM CDT (0000 UTC), the center of Tropical Storm Nora was
located near latitude 13.7 North, longitude 102.2 West. Nora is
moving toward the west-northwest near 11 mph (18 km/h). A motion
toward the northwest and north-northwest is expected to begin later
tonight and continue through Sunday. On the forecast track, the
center of Nora will approach the southwestern coast of Mexico Friday
and Friday night and be very near the coast Saturday and Saturday
night. Nora will then approach the southern portion of Baja
California Sur on Sunday.
Maximum sustained winds have increased to near 45 mph (75 km/h) with
higher gusts. Strengthening is forecast during the next few days,
and Nora is expected to become a hurricane on Saturday.
Nora is a large tropical storm. Tropical-storm-force winds extend
outward up to 205 miles (330 km) from the center.
The estimated minimum central pressure is 1001 mb (29.56 inches).
HAZARDS AFFECTING LAND
Key messages for Nora can be found in the Tropical Cyclone
Discussion under AWIPS header MIATCDEP4, WMO header WTPZ44 KNHC,
and on the web at hurricanes.gov/graphics_ep4.shtml?key_messages.
WIND: Hurricane conditions are possible within the hurricane watch
area Saturday, with tropical storm conditions beginning on Friday.
Tropical storm conditions are expected within the tropical storm
warning area beginning later tonight or on Friday.
RAINFALL: Nora is expected to produce heavy rains over coastal
sections of the Mexican states of Oaxaca, Guerrero, Michoacan,
Colima, and Jalisco. Rainfall totals of 8 to 12 inches are
forecast through this weekend with isolated maximum amounts of 20
inches possible. As a result, life-threatening flash flooding and
mudslides may occur.
SURF: Swells generated by Nora are affecting the southern coast of
Mexico and will spread northward to the southwestern coast of Mexico
through the end of the week. 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 1000 PM CDT.