[NautiNurse]

BULLETIN
Hurricane Maria Advisory Number 18
NWS National Hurricane Center Miami FL AL152017
1100 AM AST Wed Sep 20 2017

...DESTRUCTIVE WINDS AND FLOODING CONTINUE OVER PORTIONS OF PUERTO
RICO...
...CENTER OF MARIA APPROACHING THE NORTHERN COAST OF PUERTO RICO...

SUMMARY OF 1100 AM AST...1500 UTC...INFORMATION

---

LOCATION...18.4N 66.5W
ABOUT 15 MI...25 KM ESE OF ARECIBO PUERTO RICO
ABOUT 25 MI...40 KM W OF SAN JUAN PUERTO RICO
MAXIMUM SUSTAINED WINDS...140 MPH...220 KM/H
PRESENT MOVEMENT...NW OR 305 DEGREES AT 12 MPH...19 KM/H
MINIMUM CENTRAL PRESSURE...930 MB...27.47 INCHES

[NautiNurse]

Excerpt from 1100 NHC Discussion:

Maria’s center is expected to move off the northern coast of Puerto Rico
soon, and an Air Force Reserve reconnaissance aircraft is scheduled
to intercept the center early this afternoon and provide a better
estimate of how much Maria has weakened.

Since we don’t have radar imagery from San Juan, and the eye has
become cloud filled in satellite imagery, the hourly position
updates are being discontinued.

$$
Forecaster Berg