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BULLETIN
Tropical Storm Irwin Advisory Number   5
NWS National Hurricane Center Miami FL       EP102017
800 AM PDT Sun Jul 23 2017

...IRWIN FORECAST TO STRENGTHEN DURING THE NEXT FEW DAYS...


SUMMARY OF 800 AM PDT...1500 UTC...INFORMATION
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LOCATION...15.0N 115.8W
ABOUT 670 MI...1075 KM SW OF THE SOUTHERN TIP OF BAJA CALIFORNIA
MAXIMUM SUSTAINED WINDS...40 MPH...65 KM/H
PRESENT MOVEMENT...W OR 280 DEGREES AT 7 MPH...11 KM/H
MINIMUM CENTRAL PRESSURE...1004 MB...29.65 INCHES


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


DISCUSSION AND 48-HOUR OUTLOOK
------------------------------
At 800 AM PDT (1500 UTC), the center of Tropical Storm Irwin was
located near latitude 15.0 North, longitude 115.8 West.  Irwin is
moving toward the west near 7 mph (11 km/h).  A westward motion at
a slower forward speed is expected during the next couple of days.

Maximum sustained winds are near 40 mph (65 km/h) with higher gusts.
Strengthening is forecast during the next 48 hours, and Irwin could
become a hurricane by early Tuesday.

Tropical-storm-force winds extend outward up to 35 miles (55 km)
from the center.

The estimated minimum central pressure is 1004 mb (29.65 inches).


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


NEXT ADVISORY
-------------
Next complete advisory at 200 PM PDT.

$$
Forecaster Berg

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