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BULLETIN
TROPICAL STORM DARBY ADVISORY NUMBER   4
NWS NATIONAL HURRICANE CENTER MIAMI FL       EP052016
900 AM MDT TUE JUL 12 2016

...DEPRESSION STRENGTHENS TO TROPICAL STORM DARBY...


SUMMARY OF 900 AM MDT...1500 UTC...INFORMATION
----------------------------------------------
LOCATION...16.0N 108.5W
ABOUT 345 MI...555 KM SW OF MANZANILLO MEXICO
ABOUT 485 MI...780 KM S OF THE SOUTHERN TIP OF BAJA CALIFORNIA
MAXIMUM SUSTAINED WINDS...40 MPH...65 KM/H
PRESENT MOVEMENT...W OR 270 DEGREES AT 10 MPH...17 KM/H
MINIMUM CENTRAL PRESSURE...1006 MB...29.71 INCHES


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


DISCUSSION AND 48-HOUR OUTLOOK
------------------------------
At 900 AM MDT (1500 UTC), the center of Tropical Storm Darby was
located near latitude 16.0 North, longitude 108.5 West.  Darby is
moving toward the west near 10 mph (17 km/h), and this general
motion is expected to continue for the next couple of days.

Maximum sustained winds have increased to near 40 mph (65 km/h) with
higher gusts.  Some additional strengthening is forecast during the
next 48 hours, and Darby could become a hurricane on Thursday.

Tropical-storm-force winds extend outward up to 45 miles (75 km)
to the north of the center.

The estimated minimum central pressure is 1006 mb (29.71 inches).


HAZARDS AFFECTING LAND
----------------------
None.


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

$$
Forecaster Berg

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