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BULLETIN
Tropical Depression Nora Intermediate Advisory Number 18A
NWS National Hurricane Center Miami FL       EP142021
1200 AM MDT Mon Aug 30 2021

...NORA WEAKENS TO A DEPRESSION...
...HEAVY RAINS WILL CONTINUE TO SPREAD NORTHWARD ACROSS NORTHWEST
MEXICO DURING THE NEXT COUPLE OF DAYS...
 
 
SUMMARY OF 1200 AM MDT...0600 UTC...INFORMATION
-----------------------------------------------
LOCATION...25.0N 108.0W
ABOUT 85 MI...135 KM SE OF LOS MOCHIS MEXICO
MAXIMUM SUSTAINED WINDS...35 MPH...55 KM/H
PRESENT MOVEMENT...NNW OR 335 DEGREES AT 12 MPH...19 KM/H
MINIMUM CENTRAL PRESSURE...1004 MB...29.65 INCHES
 
 
WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY:
 
The government of Mexico has discontinued all Tropical Storm
Warnings.
 
SUMMARY OF WATCHES AND WARNINGS IN EFFECT:
 
There are no coastal watches or warnings in effect.
 
 
DISCUSSION AND OUTLOOK
----------------------
At 1200 AM MDT (0600 UTC), the center of Tropical Depression Nora 
was located near the coast of Mexico at latitude 25.0 North, 
longitude 108.0 West. Nora is moving toward the north-northwest near 
12 mph (19 km/h). This general motion is expected to continue until 
Nora dissipates inland later today.
 
Maximum sustained winds have decreased to near 35 mph (55 km/h)
with higher gusts.  Nora has become very disorganized, and is 
forecast to dissipate inland later today.
 
The estimated minimum central pressure is 1004 mb (29.65 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.
 
RAINFALL:  Heavy rainfall is likely along the west coast of Mexico
from Nayarit to southern Sonora through late week as Nora lifts
northward through the Gulf of California.  Rainfall of 8 to 12 
inches with maximum amounts of 20 inches is possible.  This 
rainfall will produce life-threatening flash flooding and mudslides.
 
Rainfall of 2 to 4 inches with maximum amounts of 6 inches is
possible in Baja California Sur and northern Sonora.
 
Toward the middle and latter part of the week, moisture associated
with Nora is likely to bring heavy rainfall and the potential for
scattered flash flooding to portions of the southwestern U.S. and
central Rockies.
 
SURF:  Swells generated by Nora are affecting the southwestern coast
of Mexico and will spread northward into the Gulf of California
through Monday.  These swells are likely to cause life-threatening
surf and rip current conditions.  Please consult products from your
local weather office.
 
 
NEXT ADVISORY
-------------
Next complete advisory at 300 AM MDT.
 
$$
Forecaster Pasch
 
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