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BULLETIN
TROPICAL STORM NEWTON ADVISORY NUMBER  12
NWS NATIONAL HURRICANE CENTER MIAMI FL       EP152016
900 AM MDT WED SEP 07 2016

...NEWTON CONTINUES TO WEAKEN OVER NORTHERN SONORA...
...HIGH WIND AND FLASH FLOOD WATCHES IN EFFECT FOR PORTIONS OF
SOUTHEASTERN ARIZONA AND SOUTHWESTERN NEW MEXICO...


SUMMARY OF 900 AM MDT...1500 UTC...INFORMATION
----------------------------------------------
LOCATION...30.2N 111.3W
ABOUT 80 MI...130 KM NNW OF HERMOSILLO MEXICO
ABOUT 135 MI...215 KM S OF TUCSON ARIZONA
MAXIMUM SUSTAINED WINDS...50 MPH...85 KM/H
PRESENT MOVEMENT...NNE OR 15 DEGREES AT 18 MPH...30 KM/H
MINIMUM CENTRAL PRESSURE...994 MB...29.36 INCHES


WATCHES AND WARNINGS
--------------------
There are no coastal watches or warnings in effect.

High wind watches and wind advisories are in effect for portions of
southeastern Arizona and southwestern New Mexico.  Flash flood
watches are in effect for portions of southeastern Arizona,
southern New Mexico, and extreme western Texas.


DISCUSSION AND 48-HOUR OUTLOOK
------------------------------
At 900 AM MDT (1500 UTC), the center of Tropical Storm Newton was
located near latitude 30.2 North, longitude 111.3 West. Newton is
moving toward the north-northeast near 18 mph (30 km/h), and this
motion is expected to continue until Newton dissipates tonight.  On
the forecast track, the center of Newton will move into southeastern
Arizona this afternoon.

Maximum sustained winds have decreased to near 50 mph (85 km/h)
with higher gusts.  Continued rapid weakening is forecast, and
Newton should weaken to a tropical depression over southeastern
Arizona by this evening and dissipate overnight.

Tropical-storm-force winds extend outward up to 105 miles (165 km)
mainly to the south and east of the center.

The estimated minimum central pressure is 994 mb (29.36 inches).


HAZARDS AFFECTING LAND
----------------------
WIND:  Tropical storm conditions will continue over northern
portions of the Mexican state of Sonora through this afternoon and
could spread into southeastern Arizona during the next few hours.
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.

RAINFALL:  Newton is expected to produce total rain accumulations of
3 to 6 inches, and possible isolated maximum amounts of 10 inches,
over the Mexican state of Sonora.  Moisture associated with Newton
is expected to produce total rain accumulations of 1 to 3 inches
with locally higher amounts over southeastern Arizona and southern
New Mexico through Wednesday night.  This heavy rainfall may cause
life-threatening flash floods and mud slides in areas of mountainous
terrain.

SURF:  Swells associated with Newton over the Gulf of California
will continue to subside during the day.


NEXT ADVISORY
-------------
Next intermediate advisory at 1200 PM MDT.
Next complete advisory at 300 PM MDT.

$$
Forecaster Berg

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